EP0521605A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Biocompatible lubricious grafts
Assignee: Ioptex Research Inc
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Filing: 1992-05-14
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Granted: —
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Expires: 2012-05-14
Abstract
Abstract A composition suitable for photografting composed of a hydrophilic monomer and a hydrophobic monomer which is either a perfluoroacrylate or a perfluoromethacrylate, which may be used in the manufacture of articles intended to contact moist body surfaces.
Inventors
- 👤 Cheng Li
- 👤 Michael Colvin
- 👤 Amitava Gupta
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 03:37
CPC Classifications
G; G02; G02B; G02B1/00; G02B1/04; G02B1/041; G02B1/043; A; A61; A61L; A61L29/00; A61L29/08; A61L29/085; A61L31/00; A61L31/08; A61L31/10; C; C09; C09D; C09D4/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
16 words
A polymerizable coating composition comprising a hydrophilic monomer and a hydrophobic monomer comprising perfluoroacrylate or perfluoromethacrylate.
Claim 2
Dependent Claim
19 words
A composition according to claim 1 wherein the hydrophilic monomer comprises acrylamide, hydroxyethylmethacrylate, hydroxyethyacrylate, hydroxypropylmethacrylate, hydroxypropylacrylate or vinyl pyrrolidone.
Claim 3
Dependent Claim
25 words
A composition according to claim 1 or claim 2 wherein the molar ratio of hydrophilic to hydrophobic monomer is from about 1:1 to about 1:5.
Claim 4
Dependent Claim
24 words
An article having a surface coated with a polymeric composition comprising residues derived from a hydrophilic monomer and residues derived from perfluoroacrylate or perfluoromethacrylate.
Claim 5
Dependent Claim
19 words
An article according to claim 4 in which the polymeric composition is grafted onto the surface of the article.
Claim 6
Dependent Claim
17 words
An article according to claim 4 or claim 5 wherein the flexible article is made of rubber.
Claim 7
Dependent Claim
12 words
An article according to claim 6 wherein the rubber is natural rubber.
Claim 8
Dependent Claim
11 words
An article according to claim 7 wherein rubber is partly vulcanized.
Claim 9
Dependent Claim
27 words
An article according to any one of claims 4 to 8 wherein the article is a surgical or examination glove, a catheter, a condom or a ureter.
Claim 10
Dependent Claim
18 words
An article according to claim 4 or claim 5 wherein the article is made from an acrylic resin.
Claim 11
Dependent Claim
11 words
An article according to claim 10 wherein the resin is polymethylmethacrylate.
Claim 12
Dependent Claim
20 words
An article according to claims 4, 10 or 11 in the form of a contact lens or an intraocular lens.
Claim 13
Dependent Claim
47 words
A process for the manufacture of articles having a coated surface which comprises coating said surface with a polymerizable composition comprising hydrophilic monomers and hydrophobic monomers and thereafter subjecting the composition to irradiation to polymerize the composition, which the hydrophobic monomers comprise a perfluoroacrylic or a perfluoromethacrylate.
Claim 14
Dependent Claim
13 words
A process according to claim 13 wherein the irradiation is ultraviolet light irradiation.
Claim 15
Dependent Claim
30 words
A solution suitable for photografting comprised of low molecular weight polymers of ethylene oxide terminated with one or two polymerizable groups and a photocuring inhibitor capable of absorbing ultraviolet light.
Claim 16
Dependent Claim
29 words
A solution suitable for photografting according to claim 15, in which the polymer of ethylene oxide has a molecular weight not less than 200 and not more than 5,000.
Claim 17
Independent Claim
72 words
A method of forming an article having a surface coated with a polymeric composition comprising residues derived from a hydrophilic monomer and residues derived from perfluoroacrylate or perfluoromethacrylate, comprising dipping said article into a solution suitable for photografting comprised of low molecular weight polymers of ethylene oxide terminated with one or two polymerizable groups and a photocuring inhibitor capable of absorbing ultraviolet light prior to subjecting the article to said ultraviolet light.
Claim 18
Dependent Claim
19 words
An intraocular lens comprised of an acrylic copolymer having a banded coating of the photografted solution of claim 16.
References Cited (Backward Citations)
No citation records indexed.
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