| Patent Number |
Title Of Patent |
Date Issued |
| 5009597 |
Composite dental prosthesis element formed of filled acrylate/methacrylate polymers |
April 23, 1991 |
| Composite dental prosthesis elements formed of filled acrylate- and/or methacrylate-based polymers and comprising a core having high flexural strength and a high bending modulus and an abrasion-resistant jacket with a highly lustrous surface are suitable for temporary and semipermanent a |
| 4890997 |
Photopolymerization irradiation apparatus |
January 2, 1990 |
| The irradiation apparatus for the photopolymerization of plastic embedding masses for histological preparations has a preparation support located in a housing and a plurality of irradiation lamps, with one lamp above and one lamp below the preparation support forming one lamp pair. In or |
| 4848719 |
Mold for embedding histological preparations |
July 18, 1989 |
| A mold for embedding histological specimens made of transparent plastic of the kind that is hardenable by irradiation, usually with light, consists of at least one flat-bottomed oval basin depressed with respect to a surrounding surface which, in turn, is externally bounded by a peripher |
| 4839521 |
Treatment chamber for the photopolymerization of dental plastics |
June 13, 1989 |
| A treatment chamber as an accessory device for an illuminator for the photopolymerization of dental plastics. The chamber is both light-tight and has at least one movable chamber wall. A light conductor is provided for the light input. |
| 4799753 |
Terminal for a radiation conductor |
January 24, 1989 |
| A terminal for a light conductor for uniform illumination of a rectangular field in medical and, especially, dental applications has a transparent, cylindrical lens body in a mount with its axis perpendicular to the axis of a socket for receiving the light exit end of the light conductor |
| 4656053 |
Method for producing orthodontic devices and appliances |
April 7, 1987 |
| A method for producing orthodontic devices and appliances having a highly accurate fit by building up a plurality of resin layers on a plaster cast comprising applying a first thin layer of a composition comprising a diurethanedimethacrylate prepared from 2,2,4-trimethylhexamethylene |
| 4640936 |
Photopolymerizable phosphate-containing adhesion promoting dental composition |
February 3, 1987 |
| A dental composition which when used together with a photopolymerizable dental sealing composition promotes adhesion of resin-based dental restorative materials to the tooth consisting ofa solution of (i) at least one phosphate selected from the group consisting of methacryloyloxyethyl d |
| 4636533 |
Photopolymerizable adhesion promoting dental composition |
January 13, 1987 |
| A dental composition which when used together with a photopolymerizable dental sealing composition promotes adhesion of resin-based dental restorative materials to the tooth consisting of a solution of tetramethacryloyloxyethyl pyrophosphate and a photopolymerization catalyst compris |
| 4620988 |
Flame hydrolysis coating apparatus particularly for dental prostheses |
November 4, 1986 |
| To improve coating of articles such as dental prostheses by flame hydrolysis, a zone of turbulence is generated at the tip portion of an elongated flame cone by a deflection surface (5, 5') located--with respect to flame projection--beyond holders for the articles and positioned to be |
| 4619701 |
Isolating agent |
October 28, 1986 |
| Isolating agents consisting of aqueous alginate solutions which contain preservatives and have a pH between 5.5 and 8.5 are stable in storage and have uniformly good working properties even after a long period of storage. They are suitable for isolating the surface of plaster molds a |
| 4600390 |
Apparatus and method for applying a silicon oxide-containing adhesion-promoting layer on metalli |
July 15, 1986 |
| To apply a silicon oxide adhesion-promoting layer to a metal prosthesis part or frame, for subsequent application of a dental plastic thereon, the prosthesis is subjected to flame hydrolysis derived from a flame hydrolysis burner (11) which has a silicon compound in vapor or gas form |
| 4581389 |
Method for photopolymerization of vinyl compounds and photopolymerizable materials used in said |
April 8, 1986 |
| A method for the production of a polymer composition comprising photopolymerizing at least one vinyl compound in the presence of at least one photoinitiator, said photoinitiator comprising at least one photosensitizer and at least one reducing agent selected from compounds of formula |
| 4576976 |
Process for the photopolymerization of vinyl compounds and photopolymerizable materials |
March 18, 1986 |
| Disclosed is a process for the photopolymerization of vinyl compounds and of photopolymerizable materials containing vinyl compounds and products produced thereby which are especially useful for dental materials. The process utilizes at least one photosensitizer of the formula ##STR1 |
| 4568558 |
Method for producing orthodontic devices and appliances |
February 4, 1986 |
| A method for producing orthodontic devices and appliances by building up a plurality of resin layers on a plaster cast comprising applying a first thin layer of a composition comprising a diurethanedimethacrylate prepared from 2,2,4-trimethylhexamethylenediisocyanate and 2-hydroxyeth |
| 4563153 |
Dental composition containing pigment and methods of using the same |
January 7, 1986 |
| A dental opaquing composition comprising (a) at least one polymerizable ester selected from esters of acrylic acid and methacrylic acid; (b) a photopolymerization catalyst; and (c) 30 to 90 percent by weight, based on the weight of said composition, of a pigment mixture consisting es |
| 4541801 |
Color scale palette |
September 17, 1985 |
| A color scale palette has color sample rods tinted all along their lengths from a stem in a frame to the other end projecting from the frame. The frame has a window for exposing a portion of the color sample rods and, for example, a color key, and studs cooperative with a bore through th |
| 4534839 |
Process for the photopolymerization of vinyl compounds and photopolymerizable materials |
August 13, 1985 |
| A process for photopolymerization of vinyl compounds and of photopolymerizable materials containing vinyl compounds which is especially useful for dental materials, and compositions useful in said process and the product of said process. The process utilizes a photosensitizer of the |
| 4522694 |
Process for the photopolymerization of vinyl compounds and photopolymerizable materials used in |
June 11, 1985 |
| A process for the production of a polymer composition comprising photopolymerizing at least one vinyl compound in the presence of a photoinitiator comprising at least one photosensitizer and at least one reducing agent selected from N-alkyl-pyrazole, N-alkyl-triazole, N-alkyl-tetrazo |
| 4375967 |
Dental composition containing X-ray opaque material |
March 8, 1983 |
| An improved dental composition which is opaque to X-rays comprising a polymerizable matrix and inorganic filler. The inorganic filler are formed of particles of zeolitic alumino-silicate of at least one metal selected from the group consisting of calcium, strontium, barium, lanthanum, ra |
| 4239113 |
Composition for the preparation of bone cement |
December 16, 1980 |
| A bone cement in pliable and moldable form which when applied to bone and cured has superior characteristics containing an admixture of methylmethacrylate copolymers, methylmethacrylate, and between 15 and 75% by weight of an inorganic composition of between about 90 and 99% of a bio |
| 4115346 |
Hydroxy group containing diesters of acrylic acids and their use in dental material |
September 19, 1978 |
| Polymerizable hydrox-group-containing diesters of acrylic acids for dental material are prepared by reacting 3-(3,4-epoxycyclohexyl)-8,9-epoxy-2,4-dioxaspiro(5,5) undecane or a bis-epoxide of formula (A) ##STR1## or a bis-epoxide of formula (B) ##STR2## with a hydroxyalky |
| 4059684 |
Bone cement compositions containing gentamycin |
November 22, 1977 |
| A bone cement composition includes, as the principal component, powdered copolymers of methyl methacrylate and methyl acrylate, or monomeric methyl methacrylate, and, in addition, gentamicin hydrochloride and/or gentamicin hydrobromide, or a mixture of gentamicin sulfate with sodium chlo |
| 4029632 |
Prosthetic dental appliance |
June 14, 1977 |
| The present invention provides prosthetic dental appliances which contain at least one outer surface portion which includes an outer surface of the appliance which is adapted to be polished and which is highly abrasion resistant. Said shaped body portion is a hardened matrix material |
| 4002669 |
Hydroxy group containing diesters of acrylic acid |
January 11, 1977 |
| Polymerizable hydroxy-group-containing diesters of acrylic acids for dental material are prepared by reacting 3-(3,4-epoxycyclohexyl)-8,9-epoxy-2,4-dioxaspiro(5,5) undecane or a bis-epoxide of formula (A) ##STR1## or a bis-epoxide of formula (B) ##STR2## with a hydroxyalk |
| 4001939 |
Tooth-filling material based on synthetic plastics material |
January 11, 1977 |
| Tooth filling and dental fixing using a monomeric polymerizable liquid and a polymer in powder form, which can be a mixture of monomeric and polymeric methyl methacrylates. Adhesion is increased by using a hydroperoxide of the formula ROOH in which R is an optionally substituted alky |
