Sealant Or Adhesive Patents (Class 523/118)
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Publication number: 20090304809Abstract: The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a caseinate. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment. Dental compositions, and methods of using dental compositions that include a caseinate and a hardenable resin or a water-dispersible, polymeric film former are also provided.Type: ApplicationFiled: November 7, 2005Publication date: December 10, 2009Inventors: Richard P. Rusin, Sumita B. Mitra, Kevin M. Cummings, Paul A. Burgio, Afshin Falsafi
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Patent number: 7622544Abstract: A method for preparing polyester/polyamide polymers, resins and plastics from proteins is disclosed. Using nitrous acid or nitrous oxide, a protein is converted to a hydroxyl carboxyl polyamide protomer. Protomers are condensed through hydroxyl and carboxyl groups to make inter-protomer ester bonds, resulting in a polyester polyamide polymer, resin or plastic.Type: GrantFiled: November 27, 2003Date of Patent: November 24, 2009Assignee: Yissum Research Development Company of the Hebrew University of JerusalemInventor: Sergei Braun
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Patent number: 7619016Abstract: Remineralizing dental cements contain source(s) of calcium and phosphate ions, adhesive resin monomers, reinforcing base resin monomers, and catalysts able to initiate the polymerization of the adhesive and reinforcing base resin monomers. Such dental cements can be used as orthodontic cements, crown and bridge cements, adhesives, sealants, cavity liners, and protective coatings. The release of calcium and phosphate ions and, optionally, fluoride ions, protects tooth structure from demineralization, a precursor of tooth decay.Type: GrantFiled: July 2, 2004Date of Patent: November 17, 2009Assignee: ADA FoundationInventors: Sabine H. Dickens, Frederick C. Eichmiller
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Patent number: 7614879Abstract: Bond strength of a composite resin, an adhesive resin cement or the like to dentin or enamel of tooth is remarkably improved by treating the dentin or the enamel with a self-etching primer agent comprising an aqueous solution of a methacrylic acid derivative such as N-methacryloylglycin, N-methacryloyl-3-aminopropionic acid, N-methacryloyl-4-aminobutyric acid, N-methacryloyl-5-aminovaleric acid, N-methacryloyl-6-aminocaproic acid, N-methacryloyl-2-aminomethylphosphonic acid, N-methacryloyl-3-aminoethyl-phosphonic acid and N-methacryloyl-4-aminopropylphosphonic acid.Type: GrantFiled: July 8, 2002Date of Patent: November 10, 2009Assignee: Nihon University, School Juridical PersonInventors: Kimiya Nemoto, Norihiro Nishiyama
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Patent number: 7615582Abstract: A hydrophobic acidic group-containing polymeric monomer (a); a water-soluble polymeric monomer (b); water (c); a photopolymerization initiator (d); an aromatic tertiary amine (e) having an electron-withdrawing group; a cross-linkable polymeric monomer (f); and a basic compound (g) for producing a water-soluble salt through a reaction with a part of the hydrophobic acidic group-containing polymeric monomer (a) are included as essential compounding ingredients. A one-part dental adhesive composition that exhibits high adhesive strength and high storage stability in adhesion between a teeth, and more particularly enamel or dentine, and a dental repairing material, and more particularly a resin material, is provided.Type: GrantFiled: December 8, 2004Date of Patent: November 10, 2009Assignee: Kuraray Medical Inc.Inventors: Kazumitsu Nakatsuka, Naoki Nishigaki
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Publication number: 20090264555Abstract: Absorbable and non-absorbable cyanoacrylate tissue adhesive/sealant formulations include at least one multipurpose carboxylic, acid-bearing C-succinylated polymeric rheology modifier capable of increasing the viscosity of the liquid formulation, while controlling the anionic polymerization of the cyanoacrylate monomers and increasing the compliance of the cured solid adhesive.Type: ApplicationFiled: April 18, 2009Publication date: October 22, 2009Inventors: Shalaby W. Shalaby, Michael Aaron Vaughn, James M. Lindsey, III
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Patent number: 7605190Abstract: Composition with at least one polymerizable binder and at least one polymerization initiator, which contains at least one acylgermanium compound according to general Formula (I), in which R0 is a substituted or unsubstituted C1-18-alkyl radical or an acyl group; R1 and R2 are H, an acyl group or have one of the meanings given for R3; R3 is a branched or linear C1-18-alkyl radical which can be unsubstituted or substituted one or more times by —O—, —NH—, —NR—, —S— or interrupted by other groups, trimethylsilyl, hal-(CH3)2Si—[OSi(CH3)2]r?, (CH3)3Si—[OSi(CH3)2]r—, —COOH, —COO—R10, —CO—NR11R12, —CO-vinyl, —CO-phenyl, phenyl-C1-4-alkyl, phenyl, naphthyl or biphenyl, C5-12 cycloalkyl, a 5 or 6-membered O, S or N-containing heterocyclic ring, halogen, OH, an aromatic C6-30 radical which can be substituted or unsubstituted and/or interrupted by O, S or —NR—, or a branched, cyclic or linear C1-20 alkyl, -alkenyl, -alkoxy or -alkenoxy radical; m is 1, 2 or 3; n is 0 or 1 and p is 0 or 1; wherein in each case two ofType: GrantFiled: September 26, 2007Date of Patent: October 20, 2009Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Ulrich Salz, Urs Karl Fischer, Robert Liska, Heinrich Gruber, Beate Ganster
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Patent number: 7604480Abstract: A self-curing or dual-curing, low viscosity composite is used for the fabrication of a dental liner capable of polymerization in 2 stages with 2 curing times and delayed polymerization characteristics that is designed for use at the cavity wall in the form of a thin layer.Type: GrantFiled: November 7, 2006Date of Patent: October 20, 2009Assignee: Heraeus Kulzer GmbHInventors: Andreas Grundler, Marcus Hoffmann
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Publication number: 20090258966Abstract: An object of the present invention is to provide a dental composition having excellent adhesive effect and simultaneously not causing microleakage. A dental composition of a first embodiment of the present invention includes (A) an acidic-group containing polymerizable monomer, (B) a polymerizable monomer, (C) a filler comprising poly(meth)acrylate particles, (D) a calcium-containing material including tetracalcium phosphate (TTCP) and dicalcium phosphate (DCP), and (E) a polymerization initiator. The component (A) is contained at 16-70 parts by weight based on a total of 100 parts by weight of (A)+(B). The component (B) is contained at 84-30 parts by weight based on a total of 100 parts by weight of (A)+(B). The component (C) is contained at 0.2-297 parts by weight relative to a total of 100 parts by weight of (A)+(B). The component (D) is contained at 0.2-297 parts by weight relative to a total of 100 parts by weight of (A)+(B).Type: ApplicationFiled: October 4, 2006Publication date: October 15, 2009Applicants: NIHON UNIVERSITY, SUN MEDICAL CO., LTD.Inventors: Satoshi Hirayama, Takuji Ikemi, Yasufumi Tsuchiya, Tatsuya Ori, Takashi Yamamoto
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Publication number: 20090247665Abstract: The invention relates to a composition comprising an ethylenically unsaturated acidic compound, water, a functionalized silane, an initiator, optionally comprising a sensitising agent, a non-surface treated filler, optionally a solvent, optionally an ethylenically unsaturated compound, optionally additives selected from the group consisting of stabilizer(s), photobleachable colorant(s), fluoride release agent(s), pigments. The invention also relates to a process of producing such a composition by in-situ silanization of the non-surface treated filler.Type: ApplicationFiled: April 26, 2007Publication date: October 1, 2009Inventors: Christoph Thalacker, Andreas A. Heumann
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Publication number: 20090247666Abstract: The disclosed is a biodegradable copolymer, an amphiphilic diblock copolymer, composed of a hydrophilic segment and a hydrophobic segment. The hydrophilic segment is an endcapped PEG or derivatives thereof. The hydrophilic segment is a random polymer polymerized of lactone or cyclic C3-C6 molecule and lactic acid/glycolic acid. There is no coupling agent between the hydrophilic and hydrophobic segments, and the biodegradable copolymer is formed by one-pot ring-opening polymerization. The biodegradable copolymer can be dissolved in water to form a thermosensitive material having a phase transfer temperature of 25 to 50° C., thereby being applied to biological activity factor delivery, tissue engineering, cell culture and biological glue.Type: ApplicationFiled: February 27, 2009Publication date: October 1, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ya-Jen Yu, Chin Fu Chen, Tsai-Yu Lin, Shao-Jen Yeh, Shian-Yih Wang, Po-Liang Lai
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Publication number: 20090247660Abstract: A novel monomer, 1,1,1-tri-[4-(methacryloxyethylaminocarbonyloxy)-phenyl]ethane (MPE) can be used in preparing dental compositions The MPE monomer can be combined into a dental adhesive with hydroxyethyl methacrylate (HEMA) and BisGMA (bisphenol A dimethacrylate). The MPE polymer can be polymerized with a photoinitiator system, such as a system that includes an iodonium salt. The iodonium salt can be diphenyliodonium hexafluorophosphate.Type: ApplicationFiled: March 31, 2009Publication date: October 1, 2009Inventors: Jonggu Park, Paulette Spencer, Elizabeth Murphy Topp, Qiang Ye
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Patent number: 7595354Abstract: A composition comprising (A) at least one fluorinated vinylcyclopropane according to Formula (I) wherein R1 is H or —CO—O—(CH2CH2)p—R7; R2 is H or forms together with R6 a —CH2—C(R9)(R10)—CH2— residue; R3 is H; R4 is H or forms together with R5—CH2—C(R9)(R10)—CH2— residue; R5 is H, —CO—O—R8, —CO—O—(CH2CH2)p—R7 or forms together with R4—CH2—C(R9)(R10)—CH2— residue; R6 is H, —CO—O—R8, —CO—O—(CH2CH2)p—R7 or forms together with R2 a —CH2—C(R9)(R10)—CH2— residue; R7 is perfluorinated C2-C20 aliphatic or alicyclic group; R8 is H, phenyl, benzyl, or a linear or branched C1-C12 aliphatic or alicyclic group; R9 is a H, benzoyl, acetyl or a C1-C5-alkyl group; R10H or a —CO—O—R8; p is 1, 2, 3, or 4, provided that the compound of Formula (I) comprises at least one —CO—O—(CH2CH2)p—R7 residue; (B) at least one non-fluorinated vinylcyclopropane derivative; (C) a bisphenol-A-ether di(meth)acrylate according to Formula (II) wherein R18 is H or CH3, R19 is CH3 or CF3, Y is a C2-C5-alkylen residue which can be substituType: GrantFiled: January 24, 2006Date of Patent: September 29, 2009Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Urs Karl Fischer, Volker M Rheinberger, Giancarlo Galli, Marina Ragnoli, Emo Chiellini
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Publication number: 20090239971Abstract: Filler based on glass particles which contain a homo- or copolymer of vinyl chloride on the surface, process for its preparation and its use as a dental material.Type: ApplicationFiled: November 21, 2008Publication date: September 24, 2009Applicant: Ivoclar Vivadent AGInventors: Norbert MOSZNER, Jorg ANGERMANN, Volker RHEINBERGER, Dieter VOSER, Karin VOGEL, Simone KLAPDOHR
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Publication number: 20090233887Abstract: Hydroswellable, absorbable and non-absorbable, aliphatic, segmented polyurethanes and polyurethane-urea capable of swelling in the biological environment with associated increase in volume of at least 3 percent have more than one type of segments, including those derived from polyethylene glycol and the molecular chains are structurally tailored to allow the use of corresponding formulations and medical devices as carriers for bioactive agents, rheological modifiers of cyanoacrylate-based tissue adhesives, as protective devices for repairing defective or diseased components of articulating joints and their cartilage, and scaffolds for cartilage tissue engineering.Type: ApplicationFiled: February 26, 2009Publication date: September 17, 2009Inventors: Shalaby W. Shalaby, Joel T. Corbett, David R. Ingam, Michael Aaron Vaughn
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Patent number: 7585901Abstract: Bicyclic cyclopropane derivatives of the general Formula (I) in which n+m is 0 to 8; r is 1 to 4; R1 is absent or is a C1-C20 alkylene radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, a bicyclic C4-C12 radical, a C6-C14 arylene or C7-C20 alkylenearylene radical; R2 is for r=1 a C1-C20 alkyl radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, a bicyclic C4-C12 radical, a C6-C14 aryl or a C7-C20 alkylaryl radical; is for r>1 an r-times substituted aliphatic C1 to C20 radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, an aromatic C6-C14 radical or aliphatic-aromatic C7-C20 radical; X is absent or is —CO—O—, —CO—NH— or —O—CO—NH—, and Y is CH2, O or S which is suitable in particular for the preparation of dental materials.Type: GrantFiled: May 23, 2007Date of Patent: September 8, 2009Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Armin de Meijere, Frank Zeuner, Urs Karl Fischer
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Publication number: 20090221731Abstract: A medically acceptable formulation comprising a diisocyanate terminated macromer or mixture thereof, and an oxidized cellulose.Type: ApplicationFiled: February 29, 2008Publication date: September 3, 2009Inventors: Robert B. Vetrecin, Elizabeth Vailhe, Robert W. Van Holten
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Publication number: 20090222038Abstract: The present invention is directed to a medically acceptable formulation comprising a diisocyanate terminated macromer or mixture thereof, and bio-absorbable desiccant comprising a hygroscopic and/or hydrophilic or combination thereof. The present invention is also directed to methods of use for such formulations for medical procedures.Type: ApplicationFiled: March 31, 2009Publication date: September 3, 2009Inventors: Benjamin D. Fitz, Elizabeth Vailhe, Joseph Zavatsky, Christopher M. Westergom
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Publication number: 20090215923Abstract: One aspect of the present invention relates to methods of sealing a wound or tissue plane or filling a void space, or securing meshes, films or other devices within the body. In certain embodiments, the wound is an ophthalmic, pleural or dural wound, or a hernia repair mesh. Remarkably, disclosed herein is the discovery that the use of certain crosslinkers in combination with polyalkyleneimines at specific concentrations can result in hydrogels with tunable degradation properties.Type: ApplicationFiled: February 13, 2009Publication date: August 27, 2009Applicant: HyperBranch Medical Technology, Inc.Inventors: Michael A. Carnahan, Jared D. G. Butlin
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Publication number: 20090188622Abstract: Disclosed are compositions that comprise vinylarylalkylene ethers of cyclodextrins optionally containing ether-linked adhesion-promoting groups, in combination with copolymerizable monomer or monomers. The copolymerizable monomer or monomers may include vinylarylalkylene ethers of oligohydroxy compounds (for example, sorbitol divinylbenzyl ether and others). The composition further may include stabilizers (for example, 1,3,5-trimethyl-2,4,6-tris(3,5-di-(tert)-butyl-4-hydroxybenzyl)benzene and others), and polymerization initiators (for example, phenylbis[2,4,6-trimethylbenzoyl]phosphine oxide and others) and reinforcing materials (for example, imogolite). Methods of preparing the compositions as well as the components of compositions and methods for their use in dental and other applications are also disclosed.Type: ApplicationFiled: January 27, 2009Publication date: July 30, 2009Applicant: ADA FoundationInventor: Rafael L. Bowen
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Patent number: 7560500Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.Type: GrantFiled: May 10, 2006Date of Patent: July 14, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Douglas Robert Anton, Gary Delmar Jaycox
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Patent number: 7559949Abstract: Polymeric materials and methods that realize a gel-type intraocular lens that is formed in situ within the lens capsule of the eye. The polymeric material of the intraocular lens includes reactive end groups that effectively bond with lens capsule walls, thus eliminating space between the intraocular lens and the lens capsule walls and significantly reducing the proliferation of lens epithelial cells which can cause unwanted posterior capsule opacification.Type: GrantFiled: April 27, 2007Date of Patent: July 14, 2009Inventor: Leonard Pinchuk
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Publication number: 20090177226Abstract: Compounds are provided which can form bioabsorbable compositions useful as adhesives or sealants for medical/surgical applications.Type: ApplicationFiled: January 9, 2009Publication date: July 9, 2009Inventors: Jon Reinprecht, Nadya Belcheva, Ahmad Robert Hadba, Ferass Abuzaina
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Patent number: 7553881Abstract: Dental material which contains at least one compound of the formula [PG]m—R1—Z—SP—Y—R2—[WG]p, in which m=1, 2 or 3; p=1, 2 or 3; R1=is absent, a linear or branched C1 to C20 alkylene radical which can be interrupted one or more times by O, S, NH, SiR?, CONH CONR?, COO and/or OCONH, a substituted or unsubstituted, aromatic C6 to C14 radical or a combination thereof R2=is absent, a linear or branched C1 to C20 alkylene radical which can be interrupted one or more times by O, S, NH, SiR?, CONH CONR?, COO and/or OCONH, a substituted or unsubstituted, aromatic C6 to C14 radical or a combination thereof; PG=a radically polymerizable group; SP=a polymeric spacer which is selected from polyethylene glycol, polypropylene glycol, polyglycerol, polyalkyloxazoline, polyethyleneimine, polyacrylic acid, polymethacrylic acid, polyvinyl alcohol, polyvinyl acetate, poly-(2-hydroxyethyl)acrylate, poly-(2-hydroxyethyl)methacrylate groups, hydrophilic polypeptide groups and copolymers of the corresponding monomers; WG=antimicrobType: GrantFiled: August 11, 2006Date of Patent: June 30, 2009Assignee: Ivoclar Vivadent AGInventors: Ulrich Salz, Jörg Zimmermann, Dirk Poppe, Volker Rheinberger, Jörg Tiller, Christian Waschinski
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Publication number: 20090156711Abstract: A hemostatic device comprising (i) a carrier comprising at least one component selected from the group consisting of hydroxypropyl methylcellulose phthalate, hydroxypropyl methylcellulose acetate succinate, cellulose acetate phthalate; polyvinylacetate phthalate, cellulose acetate phthalate, acetaldehyde dimethylcellulose acetate, polymethacrylate-based polymers, and derivatives, salts, copolymers or combinations thereof; and (ii) thrombinType: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
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Publication number: 20090143500Abstract: Biocompatible phase invertible proteinaceous compositions and methods for making and using the same are provided. Phase invertible compositions in accordance with the invention are prepared by combining a liquid proteinaceous substrate and a liquid crosslinking composition, where the liquid crosslinking composition includes a macromolecular crosslinking agent. Also provided are kits for use in preparing the subject compositions. The subject compositions, kits and systems find use in a variety of different applications.Type: ApplicationFiled: December 2, 2008Publication date: June 4, 2009Inventors: Ronald Dieck, Ian J. Handley, Neil Winterbottom, Joanna Wong
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Publication number: 20090139433Abstract: The present invention relates to an alkylenediamine-N,N,N?,N?-tetraacetic acid-(meth)acrylamide of formula (I) The invention also relates to a polymerizable composition which is characterized in that it comprises at least one alkylenediamine-N,N,N?,N?-tetraacetic acid-(meth)acrylamide of formula (I), and its use in particular as dental material.Type: ApplicationFiled: September 10, 2008Publication date: June 4, 2009Applicant: Ivoclar Vivadent AGInventors: Norbert MOSZNER, Jorg ANGERMANN, Urs Karl FISCHER, Volker M. RHEINBERGER
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Patent number: 7541393Abstract: The present invention provides a hardenable (i.e., curable by polymerization, crosslinking, ionic, or other chemical reaction) composition that includes polymerizable urea or thiourea compounds that function as reductants (i.e., reducing agents) in redox polymerization reactions.Type: GrantFiled: December 14, 2006Date of Patent: June 2, 2009Assignee: 3M Innovative Properties CompanyInventors: Sumita B. Mitra, Afshin Falsafi
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Patent number: 7541392Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.Type: GrantFiled: September 13, 2005Date of Patent: June 2, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Donald Da-Jen Huang, Gary Delmar Jaycox, Carl Brent Douglas, Lech Wilczek, Gordon Mark Cohen, Charles J. Brandenburg
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Publication number: 20090131552Abstract: The present invention discloses an endodontic sealer which comprises a urethane-monoacrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-monoacrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-monoacrylate oligomer.Type: ApplicationFiled: December 19, 2008Publication date: May 21, 2009Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Kuo-Huang Hsieh, Chun-Pin Lin, Ken-Hsuan Liao, Chung-Yi Lee
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Publication number: 20090118391Abstract: This invention provides quality and safe chemically-curing type GIC that solves all the disadvantages of light-curing type GIC, and has mechanical strength not lower but higher than that of light-curing type GIC and, in addition to this, the original features and advantages of GIC. The chemically-curing type glass ionomer cement according to the present invention includes porous and particulate hydroxy apatite that has a means diameter of not less than 0.6 ?m and less than 100 ?m and a large specific surface, and is added and mixed into the glass ionomer cement.Type: ApplicationFiled: April 24, 2007Publication date: May 7, 2009Inventor: Kenji Arita
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Publication number: 20090075239Abstract: The present invention is directed to compositions containing one or more polymerizable bisphosphonic acids and optionally one or more additional polymerizable components.Type: ApplicationFiled: November 21, 2008Publication date: March 19, 2009Inventor: Ahmed S. Abuelyaman
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Patent number: 7504443Abstract: The dental adhesive composition of the present invention comprises a polyfunctional polymerizable monomer which is an ester compound of a polyhydric alcohol of 3 to 6 carbon atoms and plural (meth)acrylic acids and has 1 to 2 hydroxyl groups, a monofunctional (meth)acrylate having no hydroxyl group in its molecule, a polymerizable monomer containing an acid group in its molecule, an organoboron compound as a curing agent and a filler. According to the present invention, a dental adhesive composition remarkably enhanced in the curing rate with rarely affecting adhesion properties of the composition, working time and flexibility of a cured product is provided.Type: GrantFiled: September 30, 2003Date of Patent: March 17, 2009Assignee: Sun Medical Co., Ltd.Inventors: Weiping Zeng, Akari Shimozono
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Patent number: 7501457Abstract: Dental materials and associated methods are described based on multicyclic allyl sulphides with general Formula (I): in which R1 is H or a C1-C10 alkyl radical; R2 is H or a C1-C10 alkyl radical; R3 is absent or is a C1-C20 alkylene radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, a bicyclic C6-C12 radical, a C6-C14 arylene or C7-C20 alkylene arylene radical; R4 is an n-times substituted aliphatic C2 to C20 hydrocarbon radical which can be interrupted by O or S, a cycloaliphatic C4-C12 radical, an aromatic C6-C14 radical, an aliphatic-aromatic C7-C20 radical or a heterocyclic radical which can contain 4 to 20 carbon atoms and 1 to 6 heteroatoms which are selected from N, O, P and/or S atoms, or which is formed exclusively by these heteroatoms; R5 is absent or is a C1-C10 alkylene radical; X is absent or is O, S, —O—CO— or —O—CO—NH—; Y is absent or is O, S, —O—CO— or —O—CO—NH—; m is 0 or 1 and n is an integer from 3 to 6.Type: GrantFiled: July 7, 2006Date of Patent: March 10, 2009Assignee: Ivoclar Vivadent AGInventors: Jörg Angermann, Peter Burtscher, Urs Karl Fischer, Norbert Moszner, Volker M. Rheinberger
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Patent number: 7495038Abstract: This invention relates to composite materials for restorative dentistry. More particularly, it relates to new components for dental composites, which impart an attractive combination of good mechanical properties and low shrinkage.Type: GrantFiled: May 10, 2006Date of Patent: February 24, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Douglas Robert Anton, Gary Delmar Jaycox
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Patent number: 7495037Abstract: Polymerizable materials which contain (1) 1 to 80 wt.-% of at least one polysiloxane, (2) 0.1 to 5 wt.-% of one or more initiators for radical polymerization, (3) 0 to 60 wt.-% of radically polymerizable monomer and (4) 1 to 50 wt.-% of one or more radically polymerizable monomers which carry at least phosphonic acid group, sulphonic acid group and/or mono- or dihydrogen phosphoric acid ester group, the polysiloxane (1), the monomer (3) or both being substituted by fluorine. The materials are suitable in particular for the coating of natural or artificial teeth.Type: GrantFiled: August 27, 2004Date of Patent: February 24, 2009Assignee: Ivoclar Vivadent AGInventors: Norbert Moszner, Simone Klapdohr, Ulrich Salz, Jörg Zimmermann, Volker M. Rheinberger, Rolf Mülhaupt
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Publication number: 20090048367Abstract: Non-aqueous dental adhesive comprising a mixture containing (i) one or more polymerizable monomers optionally containing an acidic group, (ii) a polymerization initiator, and (iii) a thermal polymerization inhibitor of the following formula (I): wherein R?1 represents a hydrogen atom, or a saturated hydrocarbon group having 1 to 18 carbon atoms. R?2, which may be the same or different if more than one R?2 is present, independently represent a saturated hydrocarbon group having 1 to 18 carbon atoms, and c represents an integer of from 1 to 4, and (iv) optionally an organic solvent.Type: ApplicationFiled: April 21, 2008Publication date: February 19, 2009Inventors: Joachim E. Klee, Uwe Lehman
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Publication number: 20090048366Abstract: The present invention provides a dental resin cement which is excellent in a mechanical strength, workability and storage stability, and a dental primer which significantly improves adhesiveness of the dental resin cement both to enamel and dentin of a tooth. According to the present invention, a salt of barbituric acid is used as a polymerization initiator in the dual-cure two-paste type dental resin cement being excellent in workability and storage stability to improve the storage stability, and a primer containing barbituric acid and amine is applied to a surface of a tooth to significantly improve adhesiveness of the dental resin cement both to enamel and dentin of teeth.Type: ApplicationFiled: February 3, 2006Publication date: February 19, 2009Applicant: KABUSHIKI KAISHA SHOFUInventors: Keisuke Torii, Hisaki Tanaka, Toshihide Fujii, Yoshiaki Kohro, Mikito Deguti
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Publication number: 20090043008Abstract: A one-part self-etching, self-priming dental adhesive having a pH of at most 2, which comprises an aqueous mixture containing (i) one or more polymerizable monomers optionally containing an acidic group, (ii) optionally one or more organic or inorganic acids, (iii) a polymerization initiator, and (iv) a thermal polymerisation inhibitor of the following formula (I): wherein R?1 represents a hydrogen atom, or a saturated hydrocarbon group having 1 to 18 carbon atoms. R?2, which may be the same or different if more than one R?2 is present, independently represent a saturated hydrocarbon group having 1 to 18 carbon atoms, and c represents an integer of from 1 to 4.Type: ApplicationFiled: April 21, 2008Publication date: February 12, 2009Inventors: Joachim E. Klee, Uwe Lehmann
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Publication number: 20090043009Abstract: A one-part, self-etching dental adhesive having improved performance such as adhesion performance with a simple one-coat application, without the need of separate acid-etching, a priming pre-treatment, or bonding step. The invention provides such improvements due to a function of the pH balance of the system in combination with an acid stable photoinitiating system. More specifically, the performance and pH balance is achieved through the employment of a hydrolytically stable, acidic, high-strength adhesive monomer (such as PENTA), with a stable, bifunctional, hydrophilic monomer (such as AHPMA) that yields greater crosslinking.Type: ApplicationFiled: September 25, 2008Publication date: February 12, 2009Inventor: Junjie Sang
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Patent number: 7485673Abstract: The present invention refers to a method of infiltrating enamel, in particular for the prevention and/or treatment of carious lesions. Said method of infiltrating enamel comprises the steps of (a) exposing an enamel area to be infiltrated to a conditioner comprising hydrochloric acid; (b) exposing the enamel area conditioned in step (a) to an infiltrant comprising at least one low viscous dental resin; and (c) curing the infiltrant. The present invention further refers to a kit for carrying out said method.Type: GrantFiled: January 21, 2005Date of Patent: February 3, 2009Assignee: Charite-Universitatsmedizin BerlineInventors: Hendrik Meyer-Lückel, Sebastian Paris, Andrij M. Kielbassa
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Publication number: 20090010982Abstract: A biocompatible adherent sheet for use in surgical and medical procedures for sealing the tissues of a living mammal is provided. The biocompatible adherent sheet includes a carrier sheet including a biocompatible polymer and a modified chitosan evenly disposed on one or both sides of the carrier sheet. Methods of preparing a biocompatible adherent sheet and methods of using a biocompatible adherent sheet are also provided. The biocompatible adherent sheet may also include a bioactive agent.Type: ApplicationFiled: June 10, 2008Publication date: January 8, 2009Applicant: Endomedix, Inc.Inventors: John M. Abrahams, Weiliam Chen
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Publication number: 20090011387Abstract: A dental adhesive composition has an adhesive component and an activator component. The adhesive composition has a volatile organic solvent component, one or more polymerizable (meth)acrylate compounds optionally containing fillers, and a polymerization photoinitiator. The adhesive component may also be a substantially homogeneous mixture of one or more polymerizable (meth)acrylate compounds and an effective amount of a photoinitiator, without a solvent. The activator component includes an aromatic sulfinate salt and an activator component solvent. A method for adhering a restorative to a dental surface includes preparing the surface for restoration; applying a mixture of an adhesive component and an activator component to the prepared cavity, thereby forming a coated cavity surface; and, applying a direct or indirect dental restorative to the coated cavity surface.Type: ApplicationFiled: September 8, 2008Publication date: January 8, 2009Inventors: Junjie Sang, Paul D. Hammesfahr
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Publication number: 20080319098Abstract: The present invention discloses an endodontic sealer which comprises a urethane-acrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-acrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-acrylate oligomer.Type: ApplicationFiled: June 20, 2007Publication date: December 25, 2008Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Kuo-Huang Hsieh, Chun-Pin Lin, Ken-Hsuan Liao, Chung-Yi Lee
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Patent number: 7465758Abstract: Polymerizable compositions and methods are provided that include an ethylenically unsaturated compound and an arylsulfinate salt. The polymerizable compositions are useful as hardenable dental compositions.Type: GrantFiled: July 16, 2007Date of Patent: December 16, 2008Assignee: 3M Innovative Properties CompanyInventors: Afshin Falsafi, Rajdeep S. Kalgutkar, Joel D. Oxman
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Publication number: 20080306168Abstract: The present invention relates to polymerizable dental compositions that contain a water scavenger, such as a molecular sieve, to increase the shelf life of the composition.Type: ApplicationFiled: December 28, 2006Publication date: December 11, 2008Inventors: Bradley D. Craig, Brian N. Holmes, Steven M. Aasen, James D. Hansen, Brian A. Shukla
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Publication number: 20080287566Abstract: Epoxy polymers for dental use including the reaction product of a diepoxide oligomer and a bridged dipolyamine are described. The epoxy polymers include the reaction product of diepoxide oligomers comprised of bisphenol A diepoxide oligomers and/or bisphenol F diepoxide oligomers and bridged dipolyamine monomers having two polyamine regions and a hydrocarbon region of at least 28 carbon atoms.Type: ApplicationFiled: July 31, 2007Publication date: November 20, 2008Applicant: Essential Dental Systems, Inc.Inventors: Barry L. Musikant, Allan S. Deutsch, Brian Rasimick, Quan Gu
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Patent number: 7452925Abstract: Three part bonding compositions that include an etching solution, a preparative solution, and a curable composition, as well as packaged products and methods of use for the treatment of bone substrate, i.e., teeth, are described. The etch solutions generally include an inorganic acid, an organic acid, an ethylenically unsaturated functional monomer and, optionally a solvent, and water. The preparative solutions generally include an ethylenically unsaturated functional monomer, at least one polyethylenically unsaturated functional crosslinking monomer, a photo initiator, and at least one solvent. The curable composites include reactive monomers and crosslinking agents that are effective to adhere to the surface of the treated substrate. The methods of the invention provide the ability to modify a bone or bone-like surface so that the curable composition, such as an adhesive resin, can be used in combination with a restorative material.Type: GrantFiled: February 23, 2006Date of Patent: November 18, 2008Inventor: John A. Kanca, III
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Patent number: 7449499Abstract: The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.Type: GrantFiled: August 11, 2004Date of Patent: November 11, 2008Assignee: 3M Innovative Properties CompanyInventors: Bradley D. Craig, Steven M Aasen, Ahmed S. Abuelyaman, Reinhold Hecht, Thomas Luchterhandt, Prabhakara S. Rao, Brian A. Shukla, Markus Watermann
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Publication number: 20080253987Abstract: Methods for making biomaterials for use as a tissue sealant, kits containing precursors for forming the biomaterials, and the resulting biomaterials are described herein. The biomaterials are formed from a composition comprising at least a first and a second precursor molecule, wherein: i) the first precursor molecule is a poly(ethylene glycol) based polymer having x nucleophilic groups selected from the group consisting of thiol or amino groups, wherein x is greater than or equal to 2 ii) the second precursor molecule is of the general formula: A-[(C3H6O)n—(C2H4O)m—B]i wherein m and n are integers from 1 to 200 i is greater than 2 A is a branch point B is a conjugated unsaturated group The precursors are selected based on the desired properties of the biomaterial. Optionally, the biomaterials contain additives, such as thixotropic agents, radiopaque agents, or bioactive agents.Type: ApplicationFiled: April 14, 2008Publication date: October 16, 2008Inventors: Annemie Rehor, Simona Cerritelli