Patent EP0335645A2 successfully refreshed from Google Patents.
EP0335645A2
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Adhesive composition
Assignee: Tokuyama Corp
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Filing: 1989-03-28
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Granted: —
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Expires: 2009-03-28
Abstract
Abstract Disclosed is an adhesive composition comprising (a) 100 parts by weight of a monomer mixture comprising a vinyl monomer having an acidic group in the molecule and a vinyl monomer copolymerizable with said vinyl monomer, (b) 10 to 500 parts by weight of a filler, (c) 0.01 to 10 parts by weight of a polymerization initiator and (d) 0.01 to 10 parts by weight of ascorbic acid or a derivative thereof. This adhesive composition has a high bonding force and an excellent durability even in a severe environment, for example, in the environment in the oral cavity. Accordingly, this adhesive composition is especially valuable used as a dental adhesive.
Inventors
- 👤 Toshio Kawaguchi
- 👤 Shigeri Shibuya
- 👤 Koshi Kusumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 01:00
CPC Classifications
C; C09; C09J; C09J4/00; A; A61; A61K; A61K6/00; A61K6/40; A61K6/70; A61K6/71; A61K6/72; A61K6/73; A61K6/76; A61K6/77
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
69 words
An adhesive composition comprising (a) 100 parts by weight of a monomer mixture comprising a vinyl monomer having an acidic group in the molecule and a vinyl monomer copolymerizable with said vinyl monomer, (b) 10 to 500 parts by weight of a filler, (c) 0.01 to 10 parts by weight of a polymerization initiator and (d) 0.01 to 10 parts by weight of ascorbic acid or a derivative thereof.
Claim 2
Dependent Claim
69 words
An adhesive composition comprising (a) 100 parts by weight of a monomer mixture comprising a vinyl monomer having an acidic group in the molecule and a vinyl monomer copolymerizable with said vinyl monomer, (b) 10 to 500 parts by weight of a filler, (c) 0.01 to 10 parts by weight of a polymerization initiator and (d) 0.01 to 10 parts by weight of ascorbic acid or a derivative thereof.
Claim 3
Dependent Claim
17 words
An adhesive composition as set forth in claim 1, wherein the acidic group is a carboxyl group.
Claim 4
Dependent Claim
32 words
An adhesive composition as set forth in claim 1 or 2 wherein the content of the vinyl monomer having an acidic group in the monomer mixture is 1 to 90% by weight.
Claim 5
Dependent Claim
28 words
An adhesive composition as set forth in any one of the preceding claims wherein the copolymerizable vinyl monomer is an acrylic acid ester or a methacrylic acid ester.
Claim 6
Dependent Claim
31 words
An adhesive composition as set forth in any one of the preceding claims wherein the filler is a homopolymer or copolymer of an acrylic acid ester or a methacrylic acid ester.
Claim 7
Dependent Claim
33 words
An adhesive composition as set forth in any one of the preceding claims wherein the polymerization initiator is at least one member selected from the group consisting of organic peroxides and tertiary amines.
Claim 8
Dependent Claim
17 words
An adhesive composition as set forth in claim 6 wherein the organic peroxide is a diacyl peroxide.
Claim 9
Dependent Claim
50 words
An adhesive composition as set forth in any one of the preceding claims wherein the vinyl monomer having an acidic group is a monomer represented by the following formula: wherein R₁ stands for a hydrogen atom or a methyl group, and n is a number of from 4 to 12.
Claim 10
Dependent Claim
54 words
An adhesive composition as set forth in any one of claims 1 to 7 wherein the vinyl monomer having an acidic group is a monomer represented by the following formula: wherein R₂ stands for a hydrogen atom or a methyl group, m is a number of from 2 to 4, and X stands for
Claim 11
Dependent Claim
94 words
An adhesive resin composition as set forth in any one of the preceding claims, which is of a two-pack system wherein (i) a liquid component comprising the vinyl monomer having an acidic group in the molecule or the monomer mixture of said acidic group-containing vinyl monomer and the vinyl monomer copolymerizable therewith and (ii) a powder component comprising ascorbic acid or its derivative and the filler are filled in different packs, and at the time of curing, appropriate amounts of the liquid and powder components are taken out from the packs and are mixed.
References Cited (Backward Citations)
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