Denture Plate Repair, Adhesive, Cushion Or Modification Composition, E.g., Modification Of Denture Base To Improve Fit, Etc. Patents (Class 523/120)
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Patent number: 4795823Abstract: (Methy)acrylic acid esters of the general formula(Mo).sub.n --[--A--O--CO--CH.sub.2 --O--CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CO--O--].sub.x --A--(OM).sub.nare described whereinA is an alcohol radical having at least 4 chain atoms between two junction sites.M is CH.sub.2 .dbd.C(R.sup.1)--CO wherein R.sup.1 stands for hydrogen or methyl,n is 1 or 2, andx is 0.3 to 3.These esters are suited for the preparation of dental compositions.Type: GrantFiled: March 2, 1987Date of Patent: January 3, 1989Assignee: ESPE Stiftung & Co. ProduktionsInventors: Werner Schmitt, Peter Jochum, Wolf-Dietrich Zahler, Heijo Hubner, Manfred Holupirek, Oswald Gasser, Christian Herzig
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Prevention of outgassing in polyvinylsiloxane elastomers by the use of finely divided platinum black
Patent number: 4782101Abstract: A polyvinylsolixane catalyst paste which comprises up to 20,000 ppm of finely divided platinum black which functions to adsorb hydrogen gas generated in the reaction of said catalyst paste when mixed with a base paste containing hydrofunctional polydimethylsiloxane, said base paste further containing a hydrophilic surfactant.Type: GrantFiled: March 25, 1987Date of Patent: November 1, 1988Assignee: Manufacturers Hanover Trust CompanyInventors: Duncan E. Waller, Laurie D. Lovshe -
Patent number: 4758630Abstract: Zinc and strontium unmixed partial salts of lower alkyl vinyl ether-maleic acid copolymers useful as denture adhesives.Type: GrantFiled: October 27, 1986Date of Patent: July 19, 1988Assignee: Richardson-Vicks Inc.Inventors: Nutan B. Shah, Michael C. Gounaris, Kenneth T. Holeva
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Patent number: 4748198Abstract: A coating material for protecting the surfaces of teeth is obtained by dissolving a resinous composition comprising 100 weight parts of a polystreyene resin or a high-impact polystyrene resin and 1 to 60 weight parts of rosin or a rosin derivative added thereto in an organic solvent. The resinous composition may further contain 1 to 100 weight parts of a chlorinated polymer and 1 to 100 weight parts of a coloring matter.Type: GrantFiled: April 17, 1987Date of Patent: May 31, 1988Assignee: G-C Dental Industrial Corp.Inventors: Masayuki Takahashi, Ryoji Nakazato
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Patent number: 4725631Abstract: Acrylic diesters of bisphenol-alkyl-ether of formula: ##STR1## in which R.sub.1 and R.sub.2 may be a halogen or a C.sub.1 -C.sub.7 alkyl radical optionally halogen-substituted, and R.sub.3 may be hydrogen, halogen, or a C.sub.1 -C.sub.7 alkyl radical optionally halogen-substituted. Polymers obtained from the acrylic diesters of bisphenol-alkyl-ether of formula (1) and dental composites containing said acrylic diesters.Type: GrantFiled: July 21, 1986Date of Patent: February 16, 1988Assignee: Montedison S.p.A.Inventors: Catia Bastioli, Giancarlo Romano, Romano Mazzocchi
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Patent number: 4721735Abstract: Novel compositions, especially light curable compositions, are provided which are coherent, but frangible when cured. Preferred compositions comprising a major proportion of inert, preferably inorganic filler material, polymerizable resin and frangibility enhancing material are provided which are light curable. The materials are particularly useful for "temporary" dental fillings and removable endodontic fillings. The cured materials are easily dissected, comminuted and removed as desired after curing without trauma to the filled teeth.Type: GrantFiled: January 23, 1986Date of Patent: January 26, 1988Assignee: Dentsply Research and Development CorporationInventors: Richard J. Bennett, Robert V. Hare
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Patent number: 4695463Abstract: A delivery system useful in chewing gum, confectionary and pharmaceutical products comprising:(a) an insolubolized active ingredient; and(b) a cross-linked hydrocolloid multivalent cation alginate or carageenenate matrix entrapping said insolubolized active ingredient.A process of preparation is also disclosed.Type: GrantFiled: May 24, 1985Date of Patent: September 22, 1987Assignee: Warner-Lambert CompanyInventors: Robert K. Yang, Shri C. Sharma
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Patent number: 4661065Abstract: The invention provides a denture liner composition for a composite denture based on a phosphonitrilic fluoroelastomer [poly(fluoroalkoxy)phosphazene] curable at atmospheric pressure at temperatures of about 100.degree. C. or less, conveniently by immersing the packed denture flask in a water bath at the appropriate temperature. The composition includes trimethacrylate and dimethacrylate cross-linking agents for increasing liner hardness and decreasing water sorption characteristics of the cured liner. The composition preferably further includes filler materials for increasing the hardness of the liner product. The composite denture is preferably prepared in a one-step process wherein the liner composition material of a single firmness is cured in situ with the denture base material.Type: GrantFiled: December 4, 1985Date of Patent: April 28, 1987Assignee: Gulf South Research InstituteInventors: Lawrence Gettleman, Paul H. Gebert
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Patent number: 4654006Abstract: In accordance with the present invention, there can be provided a denture base for a dental prosthesis comprising a body having an inner surface to be in contact with patient's alveolus ridge; a lining layer covering the inner surface of the body; and an adhesive agent for bonding the lining layer to the inner surface of the body; wherein the body is made of polymethyl methacrylate; the lining layer is made of a rubber-like resilient material comprising an olefin thermoplastic elastomer; and the adhesive agent contains a copolymer comprising an olefin and methyl methacrylate. The denture base has an advantage that adhesive force between the lining layer and the body is strong, and the lining layer has suitable hardness for supporting the dental prosthesis.Type: GrantFiled: March 28, 1986Date of Patent: March 31, 1987Assignees: Molten Corporation, Fourbrain Kabushiki KaishaInventors: Takae Kusano, Masato Ueno, Masanori Hirakiuchi
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Patent number: 4648843Abstract: A method for dental treatment using polymerizable carbamoyl isocyanurates in filled or unfilled dental materials such as restoratives, prostheses and sealants, dental materials containing such polymerizable carbamoyl isocyanurates disposed adjacent to teeth, and teeth treated with such dental materials.Type: GrantFiled: July 19, 1985Date of Patent: March 10, 1987Assignee: Minnesota Mining and Manufacturing CompanyInventor: Sumita B. Mitra
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Patent number: 4608088Abstract: A denture adherent preparation in powder form, which comprises an admixture of(a) from about 40-60% dental adhesive(b) from about 60-4% gel-forming mixture of a water-soluble alginate and a setting agent for the water-soluble alginate in an amount effective to cause gelation of an aqueous solution containing the water soluble alginate.The powder composition of the present invention comprising the gel-forming mixture and dental adhesive described above, may also be used as a depot formulation for delivery of therapeutic agents to the oral cavity.Type: GrantFiled: March 22, 1984Date of Patent: August 26, 1986Assignee: Dento-Med Industries IncorporatedInventor: Oddvin Lokken
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Patent number: 4593054Abstract: A primer composition for providing bonding between collagen containing materials, including dentin, bones and leather, and acrylate resins is disclosed comprising a monomer of the acrylate type containing reactive hydrogen and an aldehyde group containing compound. The combination may be made as a physical mixture or a chemical reaction product.Type: GrantFiled: August 12, 1985Date of Patent: June 3, 1986Assignee: Bayer AktiengesellschaftInventors: Erik Asmussen, Christian Munksgaard
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Patent number: 4580981Abstract: Disclosed herein is a novel fluorine-containing monomer having one carbon-carbon double bond at one of the main molecular chain ends thereof and a molecular weight of 300 to 1600, obtained by bringing a fluorine-containing telomer having a molecular weight of 200 to 1500 and an OH group at one of the main molecular chain ends thereof into esterification with acryloyl chloride or methacryloyl chloride.Type: GrantFiled: January 24, 1985Date of Patent: April 8, 1986Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuo Bannai, Hideyuki Yasumi, Shyoei Hirayama
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Patent number: 4579881Abstract: Disclosed herein is a soft, putty-like material for lining a denture base, comprising 100 parts by weight of a monomeric compound represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group and R.sup.2 represents a residual group formed by removing a hydroxyl group from a fluorine-containing telomer having a molecular weight of less than 1500, 3 to 30 parts by weight of a fluorine-containing copolymer, 3 to 30 parts by weight of a C.sub.1 to C.sub.12 -alkyl acrylate or methacrylate and 0.1 to 3.0 parts by weight of a polymerization-initiator.Type: GrantFiled: January 4, 1985Date of Patent: April 1, 1986Assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Eiichi Masuhara, Iwao HayakawaInventors: Eiichi Masuhara, Iwao Hayakawa, Nobuo Bannai, Hideyuki Yasumi
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Patent number: 4569955Abstract: An improved denture adhesive containing an adhesive polymeric fraction comprising an admixture of mixed, partial salts of lower alkyl vinyl ether-maleic anhydride-type copolymers with sodium carboxymethylcellulose in a vehicle comprising mineral oil thickened with polyethylene having a molecular weight of from about 1000 to 21,000.Type: GrantFiled: March 25, 1985Date of Patent: February 11, 1986Assignee: Richardson-Vicks Inc.Inventor: Dadi J. Dhabhar
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Patent number: 4543379Abstract: The invention provides a denture liner composition for a composite denture based on a phosphonitrilic fluoroelastomer (poly(fluoroalkoxy)phosphazene) curable at atmospheric pressure at temperatures of 100.degree. C. or less, conveniently by immersing the packed denture flask in a water bath at the appropriate temperature. The composition includes filler materials for increasing the hardness of the cured liner, interpenetrating polymers for increasing firmness and bond strength, and cross-linking agents for increasing the tensile strength and bond strength of the cured liner. The composite denture is preferably prepared in a one-step process wherein the liner composition material of a single firmness is cured in situ with the denture base material.Type: GrantFiled: December 8, 1983Date of Patent: September 24, 1985Assignee: Gulf South Research InstituteInventors: Lawrence Gettleman, Charles L. Farris, H. Ralph Rawls, Ralph J. LeBouef, Jr.
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Patent number: 4542168Abstract: A denture fixative composition contains as the active fixative a partially neutralized and crosslinked polyacrylic acid or a precursor combination of the polyacrylic acid, neutralizing agent(s) and crosslinking agent(s) which is adapted to form the active fixative, and at least one hydrophilic polymer, preferably, sodium carboxymethyl cellulose, hydroxypropyl guar or sodium alginate.Type: GrantFiled: February 6, 1984Date of Patent: September 17, 1985Assignee: Block Drug Co., Inc.Inventors: Tiang-Shing Chang, Lucy J. Zientek, Arthur Viningauz
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Patent number: 4532268Abstract: Imidazoles in dissolved form act as an agent for retarding the gelation of the polymerization of aziridine compounds initiated with sulfonium salts. The composition is particularly useful in dentistry applications, such as in the preparation of impressions and provisional denture parts.Type: GrantFiled: December 1, 1983Date of Patent: July 30, 1985Assignee: ESPE, Fabrik pharmazeutischer Praparate GmbHInventors: Peter Jochum, Heijo Hubner, Oswald Gasser
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Patent number: 4530942Abstract: An improved denture adhesive containing sodium carboxymethylcellulose (CMC) as the sole adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols (PEG) and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.Type: GrantFiled: April 12, 1984Date of Patent: July 23, 1985Assignee: Richardson-Vicks Inc.Inventors: Dadi J. Dhabhar, Nicholas F. Schmidt
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Patent number: 4530992Abstract: Compositions comprising an oligomer which (a) comprises the repeating unit (Ar--CHR), and where Ar is an aromatic group and R is hydrogen or a hydrocarbyl group or hydrogen, (b) has pendant and/or terminal groups which include inter alia acyloxymethyl, hydroxymethyl and carboxyl, and (c) has a functionality between 0.5 and 10, and processes for the preparation thereof are described. These compositions may be used in dental, electrical and electronic applications.Type: GrantFiled: December 6, 1983Date of Patent: July 23, 1985Assignee: Imperial Chemical Industries PLCInventor: Michael E. B. Jones
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Patent number: 4529748Abstract: The invention relates to a dental prosthesis adhesive formed from one or more adhesive substances and characterized in that at least a part of the adhesive substance or substances are provided with a coating which dissolves slowly in saliva and/or ingestive liquids. Preferably the coating for the adhesive substance contains one or more film-forming substances selected from the group consisting of ethyl cellulose, saccharose monostearate, gum arabic, cellulose acetate phthalate, acrylate polymers, methacrylate polymers, shellac or other film providing substances.Type: GrantFiled: April 16, 1984Date of Patent: July 16, 1985Assignee: Richardson GmbHInventor: Horst G. P. Wienecke
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Patent number: 4522956Abstract: An improved denture adhesive containing poly(ethylene oxide) as the sole adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols (PEG) and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.Type: GrantFiled: April 12, 1984Date of Patent: June 11, 1985Assignee: Richardson-Vicks Inc.Inventors: Dadi J. Dhabhar, Nicholas F. Schmidt
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Patent number: 4521551Abstract: Denture fixative compositions contain denture fixative excipients and as the denture fixative, a water soluble partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, and at least one hydrophilic polymer, preferably sodium carboxymethylcellulose, polyethylene oxide or hydroxypropyl guar.Type: GrantFiled: December 2, 1983Date of Patent: June 4, 1985Assignee: Block Drug Company, Inc.Inventors: Tiang-Shing Chang, Lucy J. Zientek
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Patent number: 4518721Abstract: An improved denture adhesive containing an adhesive polymeric fraction comprising sodium carboxymethylcellulose and poly(ethylene oxide) in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.Type: GrantFiled: April 12, 1984Date of Patent: May 21, 1985Assignee: Richardson-Vicks Inc.Inventors: Dadi J. Dhabhar, Nicholas F. Schmidt
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Patent number: 4514528Abstract: An improved denture adhesive containing an adhesive polymeric fraction consisting essentially of an admixture of mixed, partial salts of lower alkyl vinyl ether-maleic adhydride-type copolymers with either of sodium carboxymethylcellulose or poly(ethylene oxide) homopolymer or both in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.Type: GrantFiled: February 16, 1983Date of Patent: April 30, 1985Assignee: Richardson-Vicks Inc.Inventors: Dadi J. Dhabhar, Nicholas F. Schmidt
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Patent number: 4495314Abstract: A vehicle useful in a denture adhesive composition, and the denture adhesive composition containing such vehicle is disclosed. The vehicle comprises a gel consisting essentially of a mineral oil, a polyethylene wax and sorbitan monostearate in an amount of from about 0.25% to about 2.25% by weight of the gel. Preferably, the sorbitan monostearate is present in an amount of from about 0.5% to about 2.0% by weight. The gel may optionally contain up to about 10% by weight of polyisobutylene. The addition of sorbitan monostearate within the above amounts appears to lower the viscosity of the gels, and provides notable improvements in extrudability when the vehicle is employed in denture adhesive compositions.Type: GrantFiled: November 23, 1981Date of Patent: January 22, 1985Assignee: Warner-Lambert CompanyInventor: James J. Keegan
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Patent number: 4474902Abstract: An improved denture adhesive containing a karaya gum adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.Type: GrantFiled: December 7, 1982Date of Patent: October 2, 1984Assignee: Richardson-Vicks Inc.Inventors: Dadi J. Dhabhar, Nicholas F. Schmidt
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Patent number: 4470814Abstract: A method for adhering dentures to oral mucosa with a denture fixative composition containing as the active fixative a partially neutralized and crosslinked polyacrylic acid or a precursor combination of the polyacrylic acid, neutralizing agent(s) and crosslinking agent(s) which is adapted to form the active fixative, and at least one hydrophilic polymer, preferably, sodium carboxymethyl cellulose, hydroxypropyl guar or sodium alginate.Type: GrantFiled: September 2, 1983Date of Patent: September 11, 1984Assignee: Block Drug Company, Inc.Inventors: Tiang-Shing Chang, Lucy J. Zientek, Arthur Viningauz
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Patent number: 4469477Abstract: A dental prosthesis which has the whole or part of its surface which is in contact with the mucous membrane of the mouth coated with a soft, hydrophilic polyurethane is provided. The polyurethane coating has a thickness of from 0.1 to 3.00 mm when hydrated. The polyurethane is applied to the prosthesis from a non-aqueous solvent in an anhydrous state and is subsequently hydrated by soaking in water. The polyurethane is a reaction product of a mixture of polyether polyols and a di-isocyanate using an alkenediol as a chain extender. The polyurethane contains from 5 to 40% water when hydrated.Type: GrantFiled: March 24, 1983Date of Patent: September 4, 1984Assignee: Smith & Nephew Associated Companies p.l.c.Inventor: William D. Potter
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Patent number: 4432730Abstract: The invention provides a denture liner composition for a composite denture based on a phosphonitrilic fluoroelastomer (poly(fluoroalkoxy)phosphazene) curable at atmospheric pressure at temperatures of 100.degree. C. or less, conveniently by immersing the packed denture flask in a water bath at the appropriate temperature. The composition includes filler materials for increasing the hardness of the cured liner, interpenetrating polymers for increasing firmness and bond strength, and cross-linking agents for increasing the tensile strength and bond strength of the cured liner. The composite denture is preferably prepared in a one-step process wherein the liner composition material of a single firmness is cured in situ with the denture base material.Type: GrantFiled: October 1, 1982Date of Patent: February 21, 1984Assignee: Gulf South Research InstituteInventors: Lawrence Gettleman, Charles L. Farris, H. Ralph Rawls, Ralph J. LeBouef, Jr.
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Patent number: 4385153Abstract: A stable, fluid or spreadable, aerobically-hardening adhesive, storable without hardening under exclusion of oxygen, containing polymerizable olefinically-unsaturated compounds and an amount sufficient to initiate polymerization of an organoboron compound initiator, in the form of an aerobically-hardening single-component mixture, consisting essentially of:(a) at least one organoboron compound capable of initiating the polymerization of ethylenically-unsaturated compounds in the presence of oxygen, in an amount sufficient to initiate the polymerization,(b) at least one polymerizable compound containing at least one ethylenic double bond with a molecular weight of between 63 and 10,000(c) at least one compound capable of inhibiting and/or stabilizing anionic polymerization, in an amount sufficient to inhibit and/or stabilize anionic polymerization, and(d) optionally, other conventional auxiliary substances for aerobically-hardening adhesives.Type: GrantFiled: November 5, 1981Date of Patent: May 24, 1983Assignee: Henkel Kommanditgesellschaft auf AktienInventor: Wolfgang Ritter
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Patent number: 4381386Abstract: Polymerizable adhesives mixtures containing ethylenic double bonds capable of polymerizing and boron compounds as polymerization initiators, wherein the boron compounds are organoboron compounds and contain at least one boron-carbon bond or one boron-hydrogen bond and have practically no spontaneous combustibility in air. The adhesives harden after a short time to give stable adhesive bonds, even in the presence of moisture.Type: GrantFiled: November 5, 1981Date of Patent: April 26, 1983Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wolfgang Ritter, Werner Gruber
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Patent number: 4373036Abstract: A denture fixative composition contains a dentally acceptable excipient and an effective fixative amount of a fixative mixture comprising hydroxypropyl cellulose and at least one partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, or a partially neutralized, optionally partly crosslinked polyacrylic acid or a precursor combination of the copolymer or polyacrylic acid, neutralizing agents, and optionally crosslinking agents, which is adapted to form the fixative in situ, or polyethylene oxide.Type: GrantFiled: December 21, 1981Date of Patent: February 8, 1983Assignee: Block Drug Company, Inc.Inventors: Tiang-Shing Chang, Lucy J. Zientek, Arthur Viningauz, Marcy L. Scheps
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Patent number: 4318742Abstract: Odontologic compositions suited for use as denture adhesives, the compositions containing a major amount of gum base and a quantity of a hydrophilic polymer to modify the adhesive properties of the gum base together with processes for producing such compositions.Type: GrantFiled: September 27, 1979Date of Patent: March 9, 1982Assignee: Solar Dental Co., Inc.Inventor: Oddvin Lokken