Ocular lens material
First Claim
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1. An ocular lens material made of a copolymer comprising, as main copolymer components, (A) a polysiloxane macromonomer having polymerizable groups bonded via one or more urethane bonds to the siloxane main chain, of the formula (I):
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space="preserve" listing-type="equation">A.sup.1 -U.sup.1 -(-S.sup.1 -U.sup.2 -).sub.n -S.sup.2 -U.sup.3 -A.sup.2(I)wherein A1 is a group of the formula (II);
space="preserve" listing-type="equation">Y.sup.21 -R.sup.31 - (II)wherein Y21 is an acryloyloxy group, a methacryloyloxy group, a vinyl group or an allyl group, and R31 is a linear or branched alkylene group having from 2 to 6 carbon atoms;
A2 is a group of the formula (III);
space="preserve" listing-type="equation">R.sup.34 -Y.sup.22 (III)wherein Y22 is an acryloyloxy group, a methacryloyloxy group, a vinyl group or an allyl group, and R34 is a linear or branched alkylene group having from 2 to 6 carbon atoms;
U1 is a group of the formula (IV);
space="preserve" listing-type="equation">-X.sup.21 -E.sup.21 -X.sup.25 -R.sup.32 - (IV)wherein X21 is an oxygen atom or an alkylene glycol group having from 1 to 6 carbon atoms, E21 is a bivalent group derived from a diisocyanate selected from the group consisting of saturated aliphatic, alicyclic and aromatic diisocyanates, X25 is an alkylene glycol group having from 1 to 6 carbon atoms, and R32 is a linear or branched alkylene group having from 1 to 6 carbon atoms;
each of S1 and S2 independently represents a group of the formula (V);
##STR6## wherein each of R23, R24, R25, R26, R27 and R28 independently represents an alkyl group having from 1 to 3 carbon atoms or a phenyl group, K is an integer of from 1 to 50, and L is zero or an integer up to (50-K);
U2 is a group of the formula (VI);
space="preserve" listing-type="equation">-R.sup.37 -X.sup.27 -E.sup.24 -X.sup.28 -R.sup.38 - (VI)wherein each of R37 and R38 independently represents a linear or branched alkylene group having from 1 to 6 carbon atoms, each of X27 and X28 independently represent an alkylene glycol group having from 1 to 6 carbon atoms, and E24 is a bivalent group derived from a diisocyanate selected form the group consisting of saturated aliphatic, alicyclic and aromatic diisocyanates (provided that in this case, E24 forms a urethane bond together with X27 and X28);
U3 is a group of the formula (VII);
space="preserve" listing-type="equation">-R.sup.33 -X.sup.26 -E.sup.22 -X.sup.22 -wherein R33 is a linear or branched alkylene group having from 1 to 6 carbon atoms, X22 is an oxygen atom or an alkylene glycol group having from 1 to 6 carbon atoms, X26 is an alkylene glycol group having from 1 to 6 carbon atoms, and E22 is a bivalent group derived from a diisocyanate selected from the group consisting of saturated aliphatic, alicyclic and aromatic diisocyanates; and
n is an integer of at least 1; and
(B) an alkyl(meth)acrylamide, wherein the weight ratio of the polysiloxane macromonomer to the alkyl(meth)acrylamide is from 10;
90 to 90;
10.
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Abstract
An ocular lens material made of a copolymer consisting essentially of (A) a polysiloxane macromonomer having polymerizable groups bonded by one or more urethane bonds to the siloxane main chain and (B) an alkyl (meth)acrylamide, wherein the weight ratio of the polysiloxane macromonomer to the alkyl (meth)acrylamide ranges from 10:90 to 90:10.
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Citations
8 Claims
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1. An ocular lens material made of a copolymer comprising, as main copolymer components, (A) a polysiloxane macromonomer having polymerizable groups bonded via one or more urethane bonds to the siloxane main chain, of the formula (I):
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space="preserve" listing-type="equation">A.sup.1 -U.sup.1 -(-S.sup.1 -U.sup.2 -).sub.n -S.sup.2 -U.sup.3 -A.sup.2(I)wherein A1 is a group of the formula (II);
space="preserve" listing-type="equation">Y.sup.21 -R.sup.31 - (II)wherein Y21 is an acryloyloxy group, a methacryloyloxy group, a vinyl group or an allyl group, and R31 is a linear or branched alkylene group having from 2 to 6 carbon atoms; A2 is a group of the formula (III);
space="preserve" listing-type="equation">R.sup.34 -Y.sup.22 (III)wherein Y22 is an acryloyloxy group, a methacryloyloxy group, a vinyl group or an allyl group, and R34 is a linear or branched alkylene group having from 2 to 6 carbon atoms; U1 is a group of the formula (IV);
space="preserve" listing-type="equation">-X.sup.21 -E.sup.21 -X.sup.25 -R.sup.32 - (IV)wherein X21 is an oxygen atom or an alkylene glycol group having from 1 to 6 carbon atoms, E21 is a bivalent group derived from a diisocyanate selected from the group consisting of saturated aliphatic, alicyclic and aromatic diisocyanates, X25 is an alkylene glycol group having from 1 to 6 carbon atoms, and R32 is a linear or branched alkylene group having from 1 to 6 carbon atoms; each of S1 and S2 independently represents a group of the formula (V);
##STR6## wherein each of R23, R24, R25, R26, R27 and R28 independently represents an alkyl group having from 1 to 3 carbon atoms or a phenyl group, K is an integer of from 1 to 50, and L is zero or an integer up to (50-K);U2 is a group of the formula (VI);
space="preserve" listing-type="equation">-R.sup.37 -X.sup.27 -E.sup.24 -X.sup.28 -R.sup.38 - (VI)wherein each of R37 and R38 independently represents a linear or branched alkylene group having from 1 to 6 carbon atoms, each of X27 and X28 independently represent an alkylene glycol group having from 1 to 6 carbon atoms, and E24 is a bivalent group derived from a diisocyanate selected form the group consisting of saturated aliphatic, alicyclic and aromatic diisocyanates (provided that in this case, E24 forms a urethane bond together with X27 and X28); U3 is a group of the formula (VII);
space="preserve" listing-type="equation">-R.sup.33 -X.sup.26 -E.sup.22 -X.sup.22 -wherein R33 is a linear or branched alkylene group having from 1 to 6 carbon atoms, X22 is an oxygen atom or an alkylene glycol group having from 1 to 6 carbon atoms, X26 is an alkylene glycol group having from 1 to 6 carbon atoms, and E22 is a bivalent group derived from a diisocyanate selected from the group consisting of saturated aliphatic, alicyclic and aromatic diisocyanates; and n is an integer of at least 1; and
(B) an alkyl(meth)acrylamide, wherein the weight ratio of the polysiloxane macromonomer to the alkyl(meth)acrylamide is from 10;
90 to 90;
10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification