Cement Or Filling Composition Patents (Class 523/116)
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Patent number: 9757493Abstract: Disclosed are cement products, methods of forming cement using the cement product, and methods of using the cement product in orthopedic and dental applications. Generally, the disclosed cement product includes a first component and a second component. The first component comprises a polymerizable resin comprising ethylenic unsaturated double bond, a suitable glycidyl group and/or a suitable isocyanate group. The second component includes a compound comprising more than one type of amine selected from the group consisting of primary amine, secondary amines, tertiary amines and quaternary amines. Alternatively, the second component includes a compound comprising a suitable mercapto (SH—) group, a hindered amine or a dimethylthiotoluenediamine (DMTDA). Optionally, the cement product includes a filler and/or a bioactive component to promote bone formation.Type: GrantFiled: May 9, 2016Date of Patent: September 12, 2017Assignee: Pioneer Surgical Technology, Inc.Inventors: Juchui Ray Lin, Edward S. Ahn, Brian M. Schlossberg
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Patent number: 9718989Abstract: Compositions comprising a) one or more polyester macromers containing one or more chains of the residue of one or more diols and one or more diesters wherein the residue of the one or more diols and the one or more diesters alternate along the chain and a portion of the diesters are 1,1-diester-1-alkenes and at least one terminal end comprises the residue of one of the 1,1-diester-1 alkenes and wherein one or more terminal ends may comprise the residue of one or more diols; and b) one or more polymers having pendant Michael Addition donor groups. Disclosed are coating prepared from these compositions.Type: GrantFiled: January 19, 2017Date of Patent: August 1, 2017Assignee: Sirrus, Inc.Inventors: Aniruddha S. Palsule, Jeffrey M. Sullivan, Katherine E. Vanderpool, Alexander R. Holzer, Anushree Deshpande, John Klier
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Patent number: 9713654Abstract: The purpose of the present invention is to provide a bone cement composition which can have desired biological activity performance and desired radiolucency while enabling the strength of a cured product thereof to be kept. A titanium oxide coating is formed on radiolucent particles to thereby produce composite particles, and the composite particles are added to a bone cement composition. The bone cement composition thus produced can be used suitably for the filling of a bone defect portion and the fixation of an artificial joint and in percutaneous vertebroplasty. The shape of each of the radiolucent particles is preferably granular, and the titanium oxide is preferably of a rutile type.Type: GrantFiled: February 25, 2013Date of Patent: July 25, 2017Assignees: ISHIHARA SANGYO KAISHA, LTD., KYOTO UNIVERSITYInventor: Yoshimichi Ueda
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Patent number: 9707312Abstract: Kit for producing a bone cement paste, comprising a paste A and a paste B; paste A comprising at least one monomer for radical polymerization, at least one peroxide polymerization initiator and at least one tertiary amine, at least one amidine or a mixture of a tertiary amine and amidine; paste B comprising at least one monomer for radical polymerization, at least one heavy metal compound as polymerization accelerator, and as polymerization co-accelerator at least one sulfimide, at least one dicarboxylic acid imide or a mixture thereof, at least one of the pastes A and B comprising at least one filling agent that is insoluble in the monomer of paste A and/or the monomer of paste B.Type: GrantFiled: April 30, 2013Date of Patent: July 18, 2017Assignee: HERAEUS MEDICAL GMBHInventor: Sebastian Vogt
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Patent number: 9675527Abstract: The present invention provides a dental color tone adjustment material kit that has improved properties in terms of surface drying and of discoloration after curing and that enables adjustment to a desired color tone. The present invention relates to a dental color tone adjustment material kit including: a primer composition (A) including an acid group-containing polymerizable monomer (a) and a volatile organic solvent (b); and a dental color tone adjustment material B including a polymerizable monomer (d), a polymerization initiator (e), particle aggregates (f) that are chain aggregates of ultrafine filler particles having an average primary particle diameter of 1 to 50 nm, titanium dioxide (g), and a pigment (h). The monomer (a) accounts for 0.05 to 45 weight % of the primer composition (A), and the organic solvent (b) accounts for 55 to 99.95 weight % of the primer composition (A).Type: GrantFiled: October 28, 2014Date of Patent: June 13, 2017Assignee: KURARAY NORITAKE DENTAL INC.Inventors: Hirotaka Kita, Eiichi Terakawa, Mizuko Oshita
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Patent number: 9670376Abstract: Provided are hybrid sol-gel coating materials and method of synthesizing such materials. Also, provided are methods of forming hybrid sol-gel coatings from such coating materials. In some embodiments, a hybrid sol-gel coating material includes a hydrolyzed inorganic component and organic component. Functional groups of the inorganic component may react with each other in a sol-gel condensation reaction, while functional groups of the organic component may be subjected to free-radical induced polymerization thereby bonding the inorganic and organic components in a resulting hybrid organic-inorganic sol-gel coating. The coating material may also comprise nanoparticles, which may be bonded to other components in a resulting coating. The inorganic component may be a silane or, more specifically, tetraethoxysilane, while the organic component may be an acrylate or, more specifically, mercapto functionalized polyester acrylate, aromatic epoxy acrylate, and/or polyurethane acrylate.Type: GrantFiled: July 18, 2016Date of Patent: June 6, 2017Assignee: Advenira Enterprises, Inc.Inventor: Jeff Dawley
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Patent number: 9512298Abstract: A process is provided for preparing new mixtures of N,N-bis(2-hydroxyalkyl)-4-toluidine derivatives which can be used as polymerization accelerators.Type: GrantFiled: December 21, 2012Date of Patent: December 6, 2016Assignee: LANXESS Deutschland GmbHInventors: Gunter Rauchschwalbe, Wolfgang Scheinert
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Patent number: 9480627Abstract: Example embodiments of the present invention utilize long term anti-microbial/bacteriostatic compounds that are dispersed throughout a tooth restoration material as a means to reduce or eliminate recurrent decay between the tooth restoration material and tooth structure. More specifically, the present invention utilizes metals, metal oxides, and metal salts, insoluble bacteriostatic organic compounds, soluble bacteriostatic organic compounds, and organometallic compounds as long term anti-microbial/bacteriostatic compounds that are dispersed throughout the tooth restoration material as a means to reduce or eliminate recurrent decay between the tooth restoration material and tooth structure.Type: GrantFiled: September 15, 2011Date of Patent: November 1, 2016Inventor: Steven D. Jensen
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Patent number: 9456963Abstract: Photo-curable compositions for artificial teeth and denture base and a method for manufacturing denture by a three-dimensional printing system are provided. The compositions include photo-curable organic compounds, surface modified nano-sized inorganic filler, photo-initiator, colorant, and stabilizer. The composition is in a viscous liquid state having 1500-5000 cps at ambient temperature and has a low viscosity of 50-500 cps at jetting temperature or dispensing temperature. The composition also has an excellent curing rate for three-dimensional printing. Using the compositions, denture having a distinctive denture base and a set of artificial teeth can be manufactured via an inkjet type or digital light process type three-dimensional printing according to Computer Aided Design (CAD) data.Type: GrantFiled: April 18, 2013Date of Patent: October 4, 2016Assignee: Dentca, Inc.Inventor: Jae Sik Lee
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Patent number: 9452112Abstract: A self-etching and self-adhesive dental restorative composition is described herein. The composition includes a polymerizable compound having at least one phosphorus containing acidic group, a polymerizable compound having at least one carboxylic acid group, and a copolymerizable multi-functional (meth)acrylate monomers. Compositions described herein demonstrate adhesion to dentin and enamel and are useful as a cavity filler, dental pit and fissure sealants, and restoratives.Type: GrantFiled: May 2, 2011Date of Patent: September 27, 2016Assignee: DENTSPLY International Inc.Inventor: Hui Lu
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Patent number: 9445854Abstract: The present disclosure relates to bone cement formulations that have an extended working time for use in vertebroplasty procedures and other osteoplasty procedures together with cement injectors that include energy delivery systems for on-demand control of cement viscosity and flow parameters. The bone cement formulations may include a liquid component having at least one monomer and a non-liquid component including polymer particles and benzoyl peroxide (BPO). The non-liquid component may be further configured to allow controlled exposure of the BPO to the liquid monomer so as to enable control of the viscosity of the bone cement composition.Type: GrantFiled: February 27, 2009Date of Patent: September 20, 2016Assignee: DFINE, INC.Inventors: Csaba Truckai, Andrew Kohm, John Shadduck, Robert Luzzi
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Patent number: 9403726Abstract: A process for the preparation of a ceramic or glass ceramic shaped article using stereolithography and using a slip based on a radically polymerizable binder, polymerization initiator and filler, which comprises (A) at least one acidic monomer of general formula I (B) photoinitiator, and (C) ceramic and/or glass ceramic particles.Type: GrantFiled: March 7, 2014Date of Patent: August 2, 2016Assignee: Ivoclar Vivadent AGInventors: Urs Karl Fischer, Norbert Moszner, Volker Rheinberger, Wolfgang Wachter, Johannes Homa, Werner Längle
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Patent number: 9351812Abstract: The present invention relates to a calcium aluminate based paste forming a chemically bonded biomaterial on hydration thereof for in vivo anchoring of new implants, or stabilizing of existing implants in situ to an adjacent bone tissue, which paste provides a controlled pH value and temperature as well as initial hardening time. By virtue of the pH value and temperature the paste exhibits antibacterial and/or bacteriostatic properties. The present invention also relates to a method of preparing implants to be implanted wherein the implant is coated with the paste, a method of implanting a coated implant, as well as methods of preventing and treating implant related conditions, such as periimplantitis, and kit for preparing the paste. The invention is especially intended for re-stabilization of dental implants, and implantation into low quality bone tissue.Type: GrantFiled: February 3, 2014Date of Patent: May 31, 2016Assignee: DOXA ABInventors: Leif Hermansson, Jesper Lööf, Per-Olof Glantz, Emil Abrahamsson
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Patent number: 9333149Abstract: The subject matter of the invention is a radically polymerizable dental material comprising at least two components. A first component of the dental material contains the salt of a CH-acidic compound, and an additional component contains an acid with acidity greater than that of the CH-acidic compound of the first component. Both components contain radically polymerizable monomers. When the two components are mixed, the acid of the second component converts the salt of the CH-acidic compound of the first component into a CH-acidic molecule, and the CH-acidic molecule triggers the radical polymerization of the monomers. In addition to the advantages of CH-acidic compounds in dental materials on the basis of a reactive resin, the invention achieves long-term storage stability as a result of an increase in the proportion of the reactive resin matrix in polymerizable dental materials.Type: GrantFiled: October 9, 2014Date of Patent: May 10, 2016Assignee: MUHLBAUER THECHNOLOGY GMBHInventor: Rainer Lueck
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Patent number: 9320684Abstract: The present invention discloses a dental restorative material comprising 10-50 mass % of (A) a polymerizable monomer, 5-80 mass % of (B) an organic-inorganic composite filler which is prepared by dispersing an inorganic fine filler having an average particle diameter of 1 ?m or smaller in an organic matrix and has an average particle diameter of 5.0-50 ?m, and 10-60 mass % of (C) a third component, i.e., an inorganic filler having an average particle diameter of 1.1-5.0 ?m, wherein the absolute value of the difference between the refractive index [nC] of the inorganic filler (C) and the refractive index [nB] of the organic-inorganic composite filler (B) (i.e., |nC?nB|) is 0.005-0.07 at 32° C. and the absolute value of the difference between the refractive index [nA] of the cured product of the polymerizable monomer (A) and the refractive index [nC] of the inorganic filler (C) (i.e., |nA?nC|) is 0.005-0.05 at 32° C.Type: GrantFiled: June 22, 2012Date of Patent: April 26, 2016Assignee: TOKUYAMA DENTAL CORPORATIONInventors: Nobuyuki Isizaka, Tatsuya Yamazaki, Junichiro Yamakawa
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Patent number: 9320579Abstract: Dental molded product for milling having excellent aesthetic quality, compatibility for machine and moldability from the moldable composition is provided. The dental molded product for milling is obtained by curing the moldable composition which includes a polymerizable monomer, a polymerization initiator, a first spherical inorganic filler and a second spherical inorganic filler. An average particle size of the first spherical inorganic filler is in the range of 0.2 to 10 ?m. A content of the first spherical inorganic filler is in the range of 50 to 85 mass %. An average particle size of the second spherical inorganic filler is in the range of 0.005 to 0.1 ?m. A content of the second spherical inorganic filler is in the range of 1 to 18 mass %.Type: GrantFiled: June 22, 2011Date of Patent: April 26, 2016Assignee: PANASONIC HEALTHCARE HOLDINGS CO., LTD.Inventor: Masaya Tsujimoto
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Patent number: 9289360Abstract: An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises—S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.Type: GrantFiled: April 17, 2014Date of Patent: March 22, 2016Assignee: DENTSPLY International Inc.Inventors: Joachim E. Klee, Stefan Brugger, Helmut Ritter, Christoph Weber, Oliver Elsner, Mareike Bardts, Andreas Facher, Sven Pohle
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Patent number: 9254246Abstract: Self-adhesive dental restorative composition comprising (i) 10 to 40 percent by weight based on the total weight of the composition of a mixture of hydrolysis-stable polymerizable monomers of the following formula (I): wherein R is a m+n valent organic group having 1 to 20 carbon atoms and optionally 1 to 5 atoms selected from the group of nitrogen, oxygen and sulfur atoms; A independently represents a moiety of the following formula (II): wherein L is a hydrogen atom, a C1-6 alkyl group, a C3-8 cycloalkyl group, a C6-14 aryl group or a group of the following formula (III) wherein R? is a hydrogen atom, a C1-6 alkyl group, a C3-8 cycloalkyl group, or a C6-14 aryl group; X is O, S, NH or NR? wherein R? is a C1-6 alkyl group, a C3-8 cycloalkyl group, a C6-14 aryl group; a is 0 or 1; M is a group of the following formula (IV) wherein Y is O, S, NH or NR?? wherein R?? is a C1-6 alkyl group, a C3-8 cycloalkyl group, a C6-14 aryl group; b is an integer of from O to 3; c is O or 1; d is an integer of from O to 3; prType: GrantFiled: August 6, 2009Date of Patent: February 9, 2016Assignee: DENTSPLY International Inc.Inventors: Joachim Klee, Uwe Lehmann, Anja Glaner
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Patent number: 9228043Abstract: The present invention relates to an application of a composition containing telechelic macromer and photoinitiator for producing implant for hernia repair. The macromer structure is defined by Formula 1. The macromer bears (meth)acrylic end-groups and comprises a core Y defined by Formulas 2 to 9, that is linked by urethane, ester or anhydride bonds to the (meth)acrylic groups. The iodine value of the macromer is from 5 to 75. The composition according to the present invention can be shaped at room temperature and at 37° C. and is capable of undergoing liquid-to-solid transition upon irradiation with low intensity light. Upon irradiation with light the composition gains desired physicochemical properties and turns into an elastic solid. The implant for hernia repair serves for closing the hernia opening and for enhancing mechanical strength of abdominal wall.Type: GrantFiled: December 27, 2012Date of Patent: January 5, 2016Assignee: ZACHODNIOPOMORSKI UNIWERSYTET TECHNOLOGY W SZCZECINIEInventors: Miroslawa El Fray, Jedrzej Skrobot, Labib Zair
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Patent number: 9221239Abstract: A method for applying stones to metallic elements, particularly for the adhesive bonding of glass crystals to surfaces of tubular elements, which includes the steps of preparing an application surface (2) of a metallic element, spreading an adhesive medium (3) on the application surface (2) and making a single lateral face (4) of a first stone (5) to be applied adhere to the application surface (2). The axis of symmetry (10) of the first stone defines a first angle of intersection (8) with the application surface (2).Type: GrantFiled: November 17, 2011Date of Patent: December 29, 2015Assignee: DEL PIA S.R.L.Inventors: Stefano Del Pia, Alfredo Del Pia, Giorgio Del Pia
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Patent number: 9213235Abstract: A negative pattern is formed by applying a resist composition onto a substrate, prebaking, exposing to high-energy radiation, PEB, and developing the exposed resist film in an organic solvent developer to dissolve the unexposed region of resist film. The resist composition comprising a polymer adapted to form a lactone ring under the action of an acid so that the polymer may reduce its solubility in an organic solvent displays a high dissolution contrast. A fine hole or trench pattern can be formed therefrom.Type: GrantFiled: January 2, 2014Date of Patent: December 15, 2015Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Koji Hasegawa, Masayoshi Sagehashi, Kazuhiro Katayama, Tomohiro Kobayashi
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Patent number: 9211420Abstract: Generally regarded as safe (GRAS) dyes can be used as photosensitizing dyes in oral compositions to provide anti-bacterial and anti-inflammatory efficacy. Embodiments include oral care compositions including photosensitizing dyes, methods of making the compositions, methods of using the compositions, and kits containing the compositions and light emitting devices.Type: GrantFiled: December 20, 2010Date of Patent: December 15, 2015Assignee: Colgate-Palmolive CompanyInventors: Madhusudan Patel, Rosa Paredes, Mahmoud Hassan, Thomas Boyd
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Patent number: 9201168Abstract: The present invention provides a polymerizable inorganic particle dispersant that can achieve an inorganic-organic composite particle and inorganic-organic resin composite material, which have a high refractive index and a high Abbe's number, i.e., which can achieve both of a high refractive index and a high Abbe's number that is non-conventional in a composite with an inorganic particle. The present invention relates to a polymerizable inorganic particle dispersant comprising a compound which includes the following functional groups A, B and Q: A: Polymerizable functional group; B: Carboxyl group, Oxo acid group containing a phosphorous or Oxo acid group containing sulfur; and C: Sulfur-containing divalent or more aliphatic hydrocarbon group, which may contain a hetero atom other than sulfur.Type: GrantFiled: March 31, 2014Date of Patent: December 1, 2015Assignee: NIPPON KASEI CHEMICAL COMPANY LIMITEDInventors: Masanori Yamazaki, Naoko Sumitani, Ritsuko Yamauchi, Tomoko Maeda, Takako Takahashi
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Patent number: 9144533Abstract: The invention relates to a method for the production of an adhesive bond between (a) the surface of dental subframes based on high-performance polymers, and (b) dental composites, by A at least creating retentive anchoring by means of mechanical pre-treatment of the surface of each subframe; B application of a low viscous, or free-flowing adhesive agent containing a monomer mixture of polymethyl methacrylate, methyl methacrylate, at least one bifunctional methacrylate-based cross-linking monomer, initiator(s), and optionally stabilizers and other additives, including (i) wetting of the surface, (ii) penetration into the depressions which are present, and (iii) formation of a dispersion layer or a film; C at least partially curing the dispersion layer or the film in step B; and D applying a dental composite or an opaque onto the product in step C.Type: GrantFiled: August 15, 2013Date of Patent: September 29, 2015Assignee: Heraeus Kulzer GmbHInventors: Klaus Ruppert, Alfred Hohmann
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Patent number: 9132068Abstract: There is provided a dental composite restorative material that has an excellent opalescent effect, no paste stickiness, small polymerization shrinkage during curing and is suitable for the restoration of the incisal edge of a tooth. This dental composite restorative material comprises: (A) a polymerizable monomer, (B) a spherical silica-based particle [I] having an average particle diameter in the range of from 0.1 to 0.5 ?m and a standard deviation of particle diameter distribution within 1.30, preferably a silica-titanium group oxide-composite oxide particle, (C) an organic-inorganic composite filler prepared by dispersing the above-described silica-based particle [I] in an organic resin matrix, and (D) a polymerization initiator.Type: GrantFiled: June 10, 2011Date of Patent: September 15, 2015Assignee: TOKUYAMA DENTAL CORPORATIONInventors: Chika Toriyabe, Hironobu Akizumi
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Patent number: 9132069Abstract: The invention relates to a one-component self-adhesive composition for dental use comprising radically polymerizable component(s) with an acidic moiety as component A, radically polymerizable component(s) without an acidic moiety as component (B), an oxidizing agent comprising persulfate(s) as component (C), transition metal component(s) as component (D), photoinitiator system(s) as component (E), optionally non acid-reactive filler(s) as component (F), and optionally additive(s) as component (G).Type: GrantFiled: November 30, 2012Date of Patent: September 15, 2015Assignee: 3M Innovative Properties CompanyInventors: Reinhold Hecht, Andrea Stippschild, Vitore Hasanaj, Gioacchino Raia, Manfred Ludsteck, Rainer Guggenberger
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Patent number: 9119774Abstract: Dental restorative formulations comprising two additives incorporated into the continuous phase of a dental material. One additive contains a capsule with a radical initiator. The other additive contains a capsule with one or more monomers and a radical accelerator. The dental restorative formulation is applied and polymerized to form a composite. When a disturbance occurs in the dental composite, the capsules of the additives rupture so that the radical accelerator of the second capsule decomposes the radical initiator of the first capsule to polymerize the one or more monomers of the second capsule thereby healing the dental composite. The radical accelerator controls the rate of decomposition of the radical initiator.Type: GrantFiled: September 18, 2009Date of Patent: September 1, 2015Assignee: Premier Dental Products CompanyInventors: Stephen M. Gross, Mark A. Latta
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Patent number: 9102813Abstract: [Problems to be Solved] To provide fluoroaluminosilicate glass powder enabling to improve acid resistance of dental glass ionomor cement and a production method thereof. [Solution] A lanthanum compound eluted in the presence of polycarboxylic acid and water exists only in a surface layer of a fluoroaluminosilicate glass powder. An amount of the fluoroaluminosilicate glass powder is preferably 1 to 5% by weight in terms of oxide. The fluoroaluminosilicate glass powder is produced by mixing an aqueous solution of a lanthanum compound and a fluoroaluminosilicate glass powder not containing lanthanum, and heating them. The aqueous solution of lanthanum compound is an aqueous solution of a water solvable lanthanum compound, preferably an aqueous solution of lanthanum nitrite and/or an aqueous solution of lanthanum chloride.Type: GrantFiled: September 27, 2013Date of Patent: August 11, 2015Assignee: GC CORPORATIONInventors: Yusuke Hokii, Katsuhito Kato, Futoshi Fusejima
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Patent number: 9078815Abstract: A self curing activator for chemical polymerization of the interface of a dental bonding agent and a self curing or dual curing dental cement or restorative, includes an aryl borate compound, a polymerizable monomer, an optional acidic compound, an amine compound which exhibits a catalytic action, an organic peroxide containing material, and a metal compound wherein said metal compound promotes the decomposition of the organic peroxide.Type: GrantFiled: July 13, 2011Date of Patent: July 14, 2015Assignee: DENTSPLY International Inc.Inventors: Huaibing Liu, Paul D. Hammesfahr, Gregory Pomrink
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Publication number: 20150148909Abstract: A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.Type: ApplicationFiled: August 18, 2014Publication date: May 28, 2015Inventors: Peter F. Sharkey, Charles F. Leinberry
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Publication number: 20150142112Abstract: A bone cement formulation comprising: (a) magnetic calcium phosphate nanoparticles present in an amount of 5.0-95 wt. % and having a largest linear dimension of 150 nm to 50 microns; (b) polymerizable acrylate monomer present in an amount of 5.0-95 wt. %; and (c) polyacrylate polymer present in an amount of 0-80 wt. % and having a largest linear dimension from 5.0 to 500 microns. Upon exposure to an alternating magnetic field the formulation is heated which results in polymerization of the acrylate monomer component. The formulation may also be polymerized via the use of chain polymerization initiators.Type: ApplicationFiled: November 18, 2013Publication date: May 21, 2015Inventors: Xingguo CHENG, Daniel P. NICOLELLA, Todd L. BREDBENNER
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Patent number: 9028254Abstract: Disclosed herein are acrylic and methacrylic acid ester-based polymeric materials containing as flexibilizing and brittleness reducing agents 1-60% of C4-C8 polyalkylene or polyalkyldiene compounds, preferably having a molecular weight of 300-2100, and the use of such materials in dentistry and medicine.Type: GrantFiled: July 12, 2013Date of Patent: May 12, 2015Assignee: Scientific Pharmaceuticals, Inc.Inventors: Jan A Orlowski, David V Butler, Alice Chin
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Publication number: 20150125823Abstract: The present application provides a glass composition comprising 10-50% by weight CaO, at least 15% and less than 50% by weight P2O5, less than 3% by weight Al2O3, less than 10% by weight Li2O, Na2O, and K2O combined, and 0-60% by weight of SrO, MgO, BaO, ZnO, or combinations thereof; dental compositions comprising the glass composition, and methods of making and using such dental compositions.Type: ApplicationFiled: January 12, 2015Publication date: May 7, 2015Inventors: Richard P. Rusin, Kevin M. Cummings, Sumita B. Mitra, Paul A. Burgio, Tsi-Zong Tzou, David S. Arney
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Publication number: 20150126640Abstract: Disclosed herein are compositions and methods for making germanium-based glass polyalkenoate cements. Also disclosed are methods for their use as bone cements for bone augmentation procedures.Type: ApplicationFiled: May 3, 2013Publication date: May 7, 2015Inventors: Victoria Dickinson, Daniel Boyd, Brett Dickey, Sharon Kehoe
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Publication number: 20150126641Abstract: The present invention provides a polymerizable composition that is suitably used as a temporary cement for implant use and a mobile tooth-fixing material. The present invention is a polymerizable composition that includes an acrylic block copolymer (a) having at least one polymer block A that mainly contains a (meth)acrylic acid ester unit and that functions as a hard segment and at least one polymer block B that mainly contains an acrylic acid ester unit and that functions as a soft segment, a polymerizable monomer (b), and a polymerization initiator (c).Type: ApplicationFiled: January 12, 2015Publication date: May 7, 2015Applicant: KURARAY NORITAKE DENTAL INC.Inventor: Kenji Suzuki
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Patent number: 9018277Abstract: The present invention relates to a kit comprising at least two pastes, A and B. Paste A contains at least one monomer for radical polymerization; and at least one barbituric acid derivative as polymerization initiator. Paste B contains at least one monomer for radical polymerization; and at least one heavy metal compound as polymerization accelerator that is selected from heavy metal salts and heavy metal complexes. Paste B contains less than 0.01% by weight, relative to the total weight of paste B, of a peroxide; at least one of the pastes A and B contains-at least one filling agent that is poorly soluble or insoluble in the monomer for radical polymerization in either paste A or B respectively; and at least one of the pastes A and B contains at least one inorganic halide salt.Type: GrantFiled: December 14, 2012Date of Patent: April 28, 2015Assignee: Heraeus Medical GmbHInventor: Sebastian Vogt
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Publication number: 20150105489Abstract: The invention concerns a dental composition comprising bisacrylamides that are polymerizable by free-radical polymerization and by Michael-addition polymerization with amities. The application of polymerization and addition polymerization with amines opens the possibility to completely reacted materials that have no oxygen inhibited layers. The claimed bisacrylamides have an improved hydrolytic stability.Type: ApplicationFiled: December 18, 2014Publication date: April 16, 2015Inventors: Joachim E. KLEE, Uwe WALZ, Christoph WEBER
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Patent number: 9000066Abstract: The present disclosure relates to a multi-modal shape memory polymer material comprising a blend of at least one polymer component having a first molecular weight and at least a second polymer component having a second molecular weight that is less than the first component.Type: GrantFiled: April 18, 2008Date of Patent: April 7, 2015Assignee: Smith & Nephew, Inc.Inventors: Malcolm Brown, Horacio Montes De Oca Balderas, Michael Hall, John Rose
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Publication number: 20150094396Abstract: A single-paste, self-adhesive dental curable composition that has strong self-adhesion to biological hard tissues (such as enamel and dentin of teeth) and good color tone adaptability suitable for use for aesthetic restoration is provided. A dental curable composition contains: an inorganic particle (A) with an average grain size in the range of 0.1 to 50 ?m; an inorganic particle (B) with an average grain size in the range of 0.1 to 50 ?m; a polymerizable monomer (C); and a polymerization catalyst (D). The refractive index na of the inorganic particle (A) and the refractive index nb of the inorganic particle (B) meet the relationship of na>nb. A cured resin material (E), which is obtained by curing a polymerizable composition containing the polymerizable monomer (C) and the polymerization catalyst (D), has a refractive index ne that meets the relationship (1): 0?|na?ne|<0.01?ne?nb?0.05??(1).Type: ApplicationFiled: March 25, 2014Publication date: April 2, 2015Applicant: SHOFU INC.Inventors: Toshiyuki Nakatsuka, Kazuya Shinno, Satoshi Fujiwara, Daisuke Hara
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Publication number: 20150094397Abstract: The subject matter of the invention is a radically polymerizable dental material comprising at least two components. A first component of the dental material contains the salt of a CH-acidic compound, and an additional component contains an acid with acidity greater than that of the CH-acidic compound of the first component. Both components contain radically polymerizable monomers. When the two components are mixed, the acid of the second component converts the salt of the CH-acidic compound of the first component into a CH-acidic molecule, and the CH-acidic molecule triggers the radical polymerization of the monomers. In addition to the advantages of CH-acidic compounds in dental materials on the basis of a reactive resin, the invention achieves long-term storage stability as a result of an increase in the proportion of the reactive resin matrix in polymerizable dental materials.Type: ApplicationFiled: October 9, 2014Publication date: April 2, 2015Inventor: Rainer Lueck
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Patent number: 8993652Abstract: A dual-cure curable material kit comprising: (A) a radical-polymerizable monomer component; (B) a photopolymerization initiator component comprising (b1) an ?-diketone compound, (b2) an aliphatic tertiary amine compound having a tertiary amino group in which three saturated aliphatic groups are bonded to a nitrogen atom and one of the saturated aliphatic groups has an electron-withdrawing group as a substituent, and (b3) an s-triazine compound having a trihalomethyl group as a substituent, or a diaryliodonium salt compound; and a chemical polymerization initiator component (C) comprising (c1) an organic peroxide, and (c2) an N,N-di(hydroxyalkyl)-p-toluidine compound; which is packed separately at least in two packages so that the component (b2) and the component (b3) of the photopolymerization initiator component (B) are not packed together in a single package and the component (c1) and the component (c2) of the chemical polymerization initiator component (C) are not packed together in a single package.Type: GrantFiled: December 8, 2009Date of Patent: March 31, 2015Assignee: Tokuyama Dental CorporationInventors: Kyoichi Fujinami, Kazuhiko Okishio
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Publication number: 20150080301Abstract: Disclosed are novel bioabsorbable and biodegradable monomer compounds, bioabsorbable and biodegradable polymers therefrom, and methods of making such monomers and polymers, which are useful in pharmaceutical delivery systems, tissue engineering applications, tissue adhesives products, implantable medical devices, foams and reticulated foams for wound healing and drug delivery, bone hemostats and bone void fillers, adhesion prevention barriers, meshes, filters, stents, medical device coatings, pharmaceutical drug formulations, consumer product and cosmetic and pharmaceutical packaging, apparel, infusion devices, blood collection tubes and devices, other medical tubes, skin care products, and transdermal drug delivery materials.Type: ApplicationFiled: November 20, 2014Publication date: March 19, 2015Inventor: Rao S. Bezwada
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Publication number: 20150064654Abstract: A fluoride treated ceramic material is provided, the ceramic material comprising fluorinated metal oxide on its surface. A method for the preparation of such treated ceramics is also provided, the method involving exposure of the ceramic to a fluorine-containing reagent. The ceramic materials can be further functionalized so as to bond to functional ligands and/or resins. The ceramic materials can be, for example, ceramic medical implants or particulate ceramic, which can be incorporated within dental and/or orthopedic composites.Type: ApplicationFiled: April 18, 2013Publication date: March 5, 2015Inventors: Jeffrey Robert Piascik, Brian R. Stoner
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Patent number: 8969431Abstract: An adhesive adapted for stabilizing ceramic restorations for dental use, that includes a reaction product of an admixture of: a di(organo)polysiloxane that includes at least two vinylic groups and has a viscosity of at least 100 cP at 25° C.; a silicone resin; an (organo)(hydrogen)polysiloxane; a silanated fumed silica; and a filler. Preferably, the admixture includes a di(organo)polysiloxane that includes at least two vinylic groups and has a viscosity of at least 100 cP at 25° C.; a silicone resin; an (organo)(hydrogen)polysiloxane; an organoplatinum polymerization catalyst; a silanated fumed silica; a polymerization retardant; an inorganic pigment; and a filler.Type: GrantFiled: July 23, 2013Date of Patent: March 3, 2015Inventor: Thomas S. Greggs
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Patent number: 8960991Abstract: A device is provided with which it is possible to produce poly(methyl methacrylate) bone-cement paste, which is degassed to the greatest extent possible, while avoiding large-volume mixing containers and large cement volumes contained therein. The device includes a tubular hollow body (10) having a first opening (30) on the input side and a second opening (20) on the output side, at least one rotatably-mounted shaft (40) arranged in the axial direction in the tubular hollow body (10), thread turns (50) arranged axially along the outer side of the shaft (40), wherein the shaft (40) has at least one section with thread turns (50) whose pitch decreases in the direction of the second opening (20), at least one stirring blade (60) arranged on the shaft (40), and rigid mixing elements (70) arranged on the inner side of the tubular hollow body (10).Type: GrantFiled: January 24, 2011Date of Patent: February 24, 2015Assignee: Heraeus Medical GmbHInventors: Sebastian Vogt, Hubert Büchner
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Patent number: 8962709Abstract: The invention includes a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. The system of the invention has enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.Type: GrantFiled: January 7, 2013Date of Patent: February 24, 2015Assignee: The Regents of the University of Colorado, a Body CorporateInventors: Christopher N. Bowman, Neil B. Cramer
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Publication number: 20150051603Abstract: A hardenable two part acrylic composition is described for the treatment of human or animal bone is described. The composition comprises a storage stable liquid first part and a storage stable liquid second part which react with each other upon mixing to form a cement which hardens. The composition further comprises an acrylic monomer component and an initiator component in an amount effective to polymerize the monomer component. The monomer component and the initiator component are generally located in separate parts of the two part composition so that the monomer component is storage stable. The liquid first part comprises emulsion polymerized acrylic polymer particles in a liquid carrier. A method of producing a hardenable two part acrylic composition is also described. The composition is particularly useful in a syringe or caulking gun having at least two barrels.Type: ApplicationFiled: March 21, 2013Publication date: February 19, 2015Inventors: Michael Stephen Chisholm, David McDonald, Sera Saheb Abed-Ali
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Patent number: 8957126Abstract: The present application provides dental compositions, and methods of making and using dental compositions that include a calcium and phosphorus releasing glass. Such dental compositions can be useful for delivering ions to the oral environment.Type: GrantFiled: November 7, 2005Date of Patent: February 17, 2015Assignee: 3M Innovative Properties CompanyInventors: Richard P. Rusin, Kevin M. Cummings, Sumita B. Mitra, Paul A. Burgio, Tsi-Zong Tzou, David S. Arney
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Patent number: 8956629Abstract: Disclosed is a dental composition, comprising unsaturated double bond-containing monomers and/or oligomers, a catalytic amount of polymerization initiator to initiate polymerization, and a filler, wherein the dental composition comprises an organic nanotube containing an antibacterial or anticariogenic material to inhibit or prevent tooth decay. The dental composition comprises an organic nanotube containing an antibacterial or anticariogenic material, thus uniformly and continuously exhibiting anticariogenic and antibacterial activities, while avoiding deterioration in physical properties required for the dental material.Type: GrantFiled: May 19, 2008Date of Patent: February 17, 2015Assignee: Vericom Co. LtdInventors: Myung-Hwan Oh, Won-Ho Kim, Mi Hyoun Ham, Jong-Hwi Lee, Yun-Ki Kim
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Patent number: 8951639Abstract: A method of making capsules includes forming a mixture including a core liquid, a polyurethane precursor system, a first component of a two-component poly(urea-formaldehyde) precursor system, and a solvent. The method further includes emulsifying the mixture, adding a second component of the two-component poly(urea-formaldehyde) precursor system to the emulsified mixture, and maintaining the emulsified mixture at a temperature and for a time sufficient to form a plurality of capsules that encapsulate at least a portion of the core liquid. The capsules made by the method may include a polymerizer in the capsules, where the capsules have an inner capsule wall including a polyurethane, and an outer capsule wall including a poly(urea-formaldehyde). The capsules may include in the solid polymer matrix of a composite material.Type: GrantFiled: March 16, 2012Date of Patent: February 10, 2015Assignee: The Board of Trustees of the University of IllinoisInventors: Scott R. White, Jeffrey S. Moore, Nancy R. Sottos, Benjamin J. Blaiszik, Mary M. Caruso, Christian L. Mangun