EP0068509A2
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Antithrombogenic biomedical material
Assignee: Toray Industries Inc
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Filing: 1982-06-30
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Granted: —
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Expires: 2002-06-30
Abstract
Abstract nProvided is an antithrombogenic biomedical material comprising a copolymer of (A) not less than 5% by weight of one or more polymerizable monomers having a polyethylene oxide unit with a degree of polymerization not less than 5 and a polymerizable carbon-carbon double bond and (8) not more than 95% by weight of one or more monomers copolymerizable with said monomer (A).
Inventors
- 👤 Shoji Nagaoka
- 👤 Hidefumi Takiuchi
- 👤 Yuichi Mori
- 👤 Tetsuya Kikuchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/003; A; A61; A61L; A61L29/00; A61L29/04; A61L29/041; A61L33/00; A61L33/06; A61L33/064; B; B01; B01D; B01D71/00; B01D71/06; B01D71/28; B01D71/40; B01D71/401; B01D71/76; B01D71/78; B01D71/80; C08F; C08F259/00; C08F259/02; C08F259/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
59 words
An antithrombogenic biomedical material comprising a copolymer of (A) not less than 5% by weight of one or more polymerizable monomers having a polyethylene oxide unit with a degree of polymerization not less than 5 and a polymerizable carbon-carbon double bond and (B) not more than 95% by weight of one or more monomers copolymerizable with said monomer (A).
Claim 2
Dependent Claim
59 words
An antithrombogenic biomedical material comprising a copolymer of (A) not less than 5% by weight of one or more polymerizable monomers having a polyethylene oxide unit with a degree of polymerization not less than 5 and a polymerizable carbon-carbon double bond and (B) not more than 95% by weight of one or more monomers copolymerizable with said monomer (A).
Claim 3
Dependent Claim
23 words
The biomedical material of claim 1 wherein the amount of said monomer (A) is in the range of 10 to 95% by weight.
Claim 4
Dependent Claim
23 words
The biomedical material of claim 1 wherein the amount of said monomer (A) is in the range of 15 to 90% by weight.
Claim 5
Dependent Claim
29 words
The biomedical material of any one of claim 1 through 3 wherein the equilibrium water content at 25°C of said copolymer is in the range of 5 to 90%.
Claim 6
Dependent Claim
22 words
The biomedical material of claim 4 wherein the equilibrium water content of said copolymer is in the range of 20 to 70%.
Claim 7
Dependent Claim
48 words
The biomedical material of claim 1 wherein said monomer (A) is a compound represented by the formula or the formula where n ≧ 5, R 1 is hydrogen or CH 3 and R 2 is hydroxyl, C l -C 4 alkoxy or OCHPh 2 where Ph is phenyl.
Claim 8
Dependent Claim
19 words
The biomedical material of claim 6 wherein n in the formulae is an integer ranging from 9 to 300.
Claim 9
Dependent Claim
51 words
The biomedical material of claim 1 wherein said monomer (B) is at least one compound selected from the group consisting of acrylic acid, methacrylic acid, methyl acrylate, methyl methacrylate, dimethylaminoethyl methacrylate, acrylonitrile, vinyl acetate, vinyl chloride, styrene, vinylidene chloride, vinylidene fluoride, 2-hydroxyethyl methacrylate, N-vinylpyrrolidone, acrylamide, diacetone acrylamide, ethylene, propylene and butadiene.
Claim 10
Dependent Claim
13 words
The biomedical material of claim 8 wherein said monomer (B) is vinyl chloride.
Claim 11
Dependent Claim
13 words
The biomedical material of claim 1 wherein said copolymer is a graft copolymer.
Claim 12
Dependent Claim
13 words
The biomedical material of claim 1 wherein said copolymer is a random copolymer.
Claim 13
Dependent Claim
62 words
An antithrombogenic biomedical material obtained by graft copolymerizing not less than 5% by weight of one or more polymerizable monomers onto a trunk polymer containing not less than 10% by weight in terms of monomer of vinyl chloride units, said polymerizable monomers having a polyethylene oxide unit with a degree of polymerization not less than 5 and a polymerizable carbon-carbon double bond.
Claim 14
Dependent Claim
62 words
An antithrombogenic biomedical material obtained by graft copolymerizing not less than 5% by weight of one or more polymerizable monomers onto a trunk polymer containing not less than 10% by weight in terms of monomer of vinyl chloride units, said polymerizable monomers having a polyethylene oxide unit with a degree of polymerization not less than 5 and a polymerizable carbon-carbon double bond.
Claim 15
Dependent Claim
44 words
The biomedical material of claim 12 wherein said polymerizable monomers comprise compounds represented by the formula where n ≧ 5, R 1 is hydrogen or CH 3 and R 2 is hydroxyl, C 1 -C 4 alkoxy or OCHPh 2 where Ph is pbenyl.
References Cited (Backward Citations)
No citation records indexed.
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