Claims
- 1. An oxygen-permeable article composed of a fluorine-containing, hydrophilic, oxygen-permeable, gelled, crosslinked polymer having water swellability comprising as an essential monomer component a fluorine-containing (meth)acrylate monomer composed of a (meth)acrylate ester monomer represented by the following formula (I) ##STR50## or the following formula (II) ##STR51## wherein R.sup.1, R.sup.2 and R.sup.3 each represent a hydrogen atom or a methyl group,
- R.sup.4 represents a hydrocarbon group having 1 to 30 carbon atoms or a hydrocarbon group having 1 to 30 carbon atoms which contains not more than 61 oxygen or fluorine atoms, and
- m and n each represent an integer of 1 to 1,000, and graft-bonded to the alkylene group in the main chain of the (meth)acrylate monomer at least one fluorine-substituted hydrocarbon group, having 1 to 30 carbon atoms and at least three fluorine atoms, per molecule of the (meth)acrylate monomer.
- 2. The oxygen-permeable article of claim 1, wherein in said (meth)acrylate ester monomer of the formula (I), m is an integer of 3-50.
- 3. The oxygen-permeable article of claim 1, wherein in said (meth)acrylate ester monomer of formula (II), n is an integer of 20-800.
- 4. The oxygen-permeable article of claim 1, wherein said graft-bonded fluorine-substituted hydrocarbon group is selected from the class consisting of --CF.sub.2 CFHCF.sub.3, --CF.sub.2 CFHC.sub.2 F.sub.5, --CF.sub.2 CFHC.sub.4 F.sub.9, --CF.sub.2 CFHC.sub.6 F.sub.13, --CF.sub.2 CFHC.sub.10 F.sub.21, --CF.sub.2 CFHCF.sub.2 H, --CF.sub.2 CFH(CF.sub.2).sub.2 H, CF.sub.2 CFH(CF.sub.2).sub.4 H, --CF.sub.2 CFH(CF.sub.2).sub.6 H, --CF.sub.2 CFH(CF.sub.2).sub.7 H, --CF.sub.2 CFH(CF.sub.2).sub.8 H, --CF.sub.2 CFH(CF.sub.2).sub.9 H, --CF.sub.2 CFH(CF.sub.2).sub.10 H, --CH.sub.2 CH.sub.2 CF.sub.3, --CH.sub.2 CH.sub.2 C.sub.2 F.sub.5, --CH.sub.2 CH.sub.2 (CF.sub.2).sub.6 H, --CF.sub.2 CFHCF.sub.2 C(CF.sub.3).sub.3, --CF.sub.2 CFHCF.sub.2 CH(C.sub.2 F.sub.5).sub.2, ##STR52##
- 5. The oxygen-permeable article composed of a fluorine-containing, hydrophilic, oxygen-permeable, gelled, crosslinked copolymer having water swellability composed essentially of
- (a) 10 to 99% by weight of units of a fluorine-containing difunctional (meth)acrylate ester monomer, and
- (b) 1 to 90% by weight of units of a trifunctional or higher fluorine-containing (meth)acrylate ester monomer,
- the units of the monomer (a) being units of a fluorine-containing difunctional (meth)acrylate ester monomer composed of a difunctional (meth)acrylate ester monomer represented by the following formula (III) ##STR53## wherein R.sub.5 represents a hydrogen atom or a methyl group, R.sub.6 represents a hydrogen atom or a lower alkyl group, and
- k represents an integer of 1 to 20,000 on an average, and graft-bonded to the alkylene group in the main chain of said difunctional (meth)acrylate ester monomer at least one fluorine-substituted hydrocarbon group, containing 1 to 30 carbon atoms and at least three fluorine atoms, per molecule of said difunctional (meth)acrylate ester monomer, and
- the units of the monomer (b) being a trifunctional or higher fluorine-containing (meth)acrylate ester monomer composed of a trifunctional or higher poly(meth)acrylate of a polyoxyalkylene glycol having a branched structure, and graft-bonded to the carbon atoms of the alkylene group in the main chain of said trifunctional or higher fluorine-containing (meth)acrylate ester monomer at least one fluorine-substituted hydrocarbon group containing 1 to 30 carbon atoms and at least three fluorine atoms, per molecule of said monomer.
Priority Claims (2)
Number |
Date |
Country |
Kind |
61-312934 |
Dec 1986 |
JPX |
|
62-118956 |
May 1987 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/138,653, filed Dec. 29, 1987, now U.S. Pat. No. 4,957,985.
US Referenced Citations (4)
Continuations (1)
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Number |
Date |
Country |
Parent |
138653 |
Dec 1987 |
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