[특허]Blend of cross-linked polymer, swelling monomer and cross-linking agent and curing process

[미국특허] Blend of cross-linked polymer, swelling monomer and cross-linking agent and curing process 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08F-265/06 A61K-006/08
출원번호	US-0318356 (1981-11-05)
발명자 / 주소	Roemer Frederick D. (Dallastown PA) Tateosian Louis H. (York PA)
출원인 / 주소	Dentsply Research & Development Corporation (Milford DE 02)
인용정보	피인용 횟수 : 48 인용 특허 : 5

초록 ▼

Compositions hardenable by exposure to heat or electromagnetic radiation are provided by blending from about 0% to about 50% by weight of an uncrosslinked polymer, from about 20% to about 66% of a polymerizable monomer capable of dissolving said polymer, from about 10% to about 70% of a crosslinked polymer in the form of discrete particles having average diameters of from 0.001 micron to about 500 microns and being swellable by said monomer, and from about 0.25% to about 27% of a crosslinking agent for said monomer. Such compositions exhibit superior chemical and physical characteristics when hardened and are suitable in a wide variety of applications as construction media. In accordance with a preferred form of the invention, a precursor blend is formed from a mixture comprising (A) from 13 to 52 weight percent of a crosslinked polymer of an ester of a C1-C6 alkyl acrylic acid and a C1-C20 alkyl or cycloalkyl alcohol, said crosslinked polymer being in the form of fine particles at least 50% by weight of which have average diameters less than 150 microns; (B) from 13 to 34 weight percent of an uncrosslinked polymerized ester of a C1-C6 alkyl acrylic acid and a C1-C20 alkyl or cycloalkyl alcohol having an average molecular weight of from 500,000 to 900,000 g/mole; (C) from 25 to 55% by weight of a polymerizable monomeric ester of a C1-C6 alkyl acrylic acid and a C1-C20 alkyl or cycloalkyl alcohol, which monomeric ester is capable of dissolving said uncrosslinked polymerized ester and of swelling, or interpenetrating, said crosslinked polymer particles; and (D) from 7% to 22% by weight of a crosslinking agent for said polymerizable monomeric ester. Such precursor blends, after being aged for a time sufficient to insure that the crosslinked polymer particles have become substantially fully swollen with or interpenetrated by the mixture of monomeric ester and crosslinking agent, is especially suitable in the production of prosthetic dental appliances, such as, for example, prosthetic teeth.

대표청구항 ▼

A hardenable composition comprising a blend of: (A) from 0% to about 50% of an uncrosslinked polymer capable of dissolving in component (B); (B) from about 20% to about 66% of a monofunctional polymerizable monomer; (C) from about 10% to about 70% of a crosslinked polymer in the form of discrete particles having average diameters up to about 500 microns and being swellable in said monomer; and (D) from about 7% to about 27% of a di- or polyfunctional crosslinking agent reactive with said polymerizable monomer; said percentages being based upon the total weight of A, B, C and D in said composition, said composition being capable of being hardened into a water insensitive object.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Highgate Donald J. (“Brambles,”Wonham Way Gomshall ; Guildford ; Surrey EN), Bioimplantable device from crosslinked, swollen, hydrophilic polymers.
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Walkowiak Michael (Leverkusen DEX) Podszun Wolfgang (Cologne DEX) Leusner Bernhard (Leverkusen DEX) Sling Carlhans (Odenthal DEX) Schulz Hans-Hermann (Leichlingen DEX), Dental material based on crosslinked plastic and polymerizable binder.
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Walkowiak Michael (Leverkusen DEX) Podszun Wolfgang (Cologne DEX) Leusner Bernhard (Leverkusen DEX) Sling Carlhans (Odenthal DEX) Schulz Hans H. (Leichlingen DEX), Dental materials based on organic plastics in paste form.
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Walkowiak Michael (Leverkusen DEX) Podszun Wolfgang (Cologne DEX) Leusner Bernhard (Leverkusen DEX) Sling Carlhans (Odenthal DEX) Schulz Hans H. (Leichlingen DEX), Dental materials which are opaque to X-rays and are based on organic plastics in paste form.
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Bright ; Alan, Fast curing resinous compositions.
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Mller Michael (Bergisch-Gladbach DEX) Podszun Wolfgang (Cologne DEX) Bebermeier Gnther (Leverkusen DEX) Richter Roland (Leverkusen DEX), Crosslinked shaped dental articles.
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Hajek, Andreas; Harke, Stefan; Geier, Josef; Hock, Klaus, Curable molding composition and shaped plastics articles produced from said molding composition.
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Kawaguchi Satoshi,JPX ; Hasegawa Akira,JPX, Dental composition and artificial tooth with the use of dental composition.
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Deguchi Mikito,JPX, Dental elastic restorative material and method for production of dental prosthetic material using the same.
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Liu, Andrew T. C., Dental prosthesis.
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Walker, Jr.,Christopher B.; Kolb,Brant U.; Goenner,Emily S.; Jones,Vivian W.; Wang,Sharon; Noyola,Joan M., Durable high index nanocomposites for AR coatings.
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Kohgo, Osamu; Kato, Naoyuki; Okumura, Maho; Jalaludin, Ahmad; Kojima, Kouya; Higuchi, Eizaburo; Takahashi, Yuji, Material for denture base, denture base, method of manufacturing the denture base, plate denture, and method of manufacturing the plate denture.
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Tateosian Louis H. (York PA) Horne Shek C. (York PA), Method for making dental prosthetic device with oxygen barrier layer and visible light irradiation to cure polymer.
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[미국특허] Blend of cross-linked polymer, swelling monomer and cross-linking agent and curing process 원문보기

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[미국특허] Blend of cross-linked polymer, swelling monomer and cross-linking agent and curing process 원문보기

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