Polymerizable composition, organic glass and ophthalmic lens
First Claim
1. A polymerizable composition containing;
- (A) 100 parts by weight of a vinylbenzyl compound of the formula (I), ##STR23## wherein each of R1 and R2 is independently a halogen atom, each of h and i is independently 0, 1 or 2, each of X1, X2 and X3 is independently an oxygen atom or a sulfur atom, and each of j, k and m is 0 or 1, provided that when k is 0, j is 0, that when m is 0, each of j and k is 0, that when j is 0 and when each of k and m is 1, X1 and X2 cannot be sulfur atoms at the same time, and that when each of m, k and j is 1, X1, X2 and X3 cannot be sulfur atoms at the same time,and(B) 0.1 to 20 parts by weight of 2,4-diphenyl-4-methyl-1-pentene.
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Accused Products
Abstract
A polymerizable composition containing;
(A) 100 parts by weight of a vinylbenzyl compound of the formula (I), ##STR1## wherein each of R1 and R2 is independently a halogen atom, each of h and i is independently 0, 1 or 2, each of X1, X2 and X3 is independently an oxygen atom or a sulfur atom, and each of j, k and m is 0 or 1, provided that when k is 0, j is 0, that when m is 0, each of j and k is 0, that when j is 0 and when each of k and m is 1, X1 and X2 cannot be sulfur atoms at the same time, and that when each of m, k and j is 1, X1, X2 and X3 cannot be sulfur atoms at the same time,
and
(B) 0.1 to 20 parts by weight of 2,4-diphenyl-4-methyl-1-pentene.
The polymerizable composition can give a molded article which is free from coloring in heat treatment, has sufficient properties as an ophthalmic lens such as a high refractive index, a high Abbe'"'"'s number and a low specific gravity, is excellent in transparency, light resistance, heat resistance and impact resistance, and is therefore suitable as an organic glass such as an ophthalmic lens and a lens for an optical device.
28 Citations
22 Claims
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1. A polymerizable composition containing;
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(A) 100 parts by weight of a vinylbenzyl compound of the formula (I), ##STR23## wherein each of R1 and R2 is independently a halogen atom, each of h and i is independently 0, 1 or 2, each of X1, X2 and X3 is independently an oxygen atom or a sulfur atom, and each of j, k and m is 0 or 1, provided that when k is 0, j is 0, that when m is 0, each of j and k is 0, that when j is 0 and when each of k and m is 1, X1 and X2 cannot be sulfur atoms at the same time, and that when each of m, k and j is 1, X1, X2 and X3 cannot be sulfur atoms at the same time, and (B) 0.1 to 20 parts by weight of 2,4-diphenyl-4-methyl-1-pentene. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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11. The composition of claim 3 wherein other monomer as (D) component is a compound having at least one vinyl, acryloyl, methacryloyl or allyl group in the molecule.
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12. The composition of claim 11, wherein the (D) component contains a diacrylate compound, a dimethacrylate compound or a urethane (meth)acrylate compound having a urethane bond and a plurality of acryloyl or methacryloyl groups.
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13. The composition of claim 11, wherein the (D) component contains (meth)acrylate, glycidyl methacrylate, α
- -methylstyrene or epoxy (meth)acrylate.
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14. The composition of claim 12, wherein the diacrylate compound and the dimethacrylate compound have the formula of ##STR25## wherein each of R5, R6 and R7 is independently a hydrogen atom or a methyl group, and n is an integer of 1 or more.
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15. The composition of claim 12, wherein the urethane (meth)acrylate compound has the formula of ##STR26## wherein R21 is a hydrogen atom or an alkyl group, R22 is an alkylene group optionally substituted with an acryloyloxymethyl group or a methacryloyloxymethyl group, t is an integer of 2, 3 or 4, and A is a group of the formula of --(R23 NHCOOR24 CONH)u R25 when t is 2 or a group of the formula of {--(R23 NHCOOR24)u }v R26 when t is 3 or 4 in which each of R23, R24 and R25 is independently an alkylene group, a group of the formula of ##STR27## in which each of R27 and R28 is independently an alkylene or arylene group, each of w and x is independently 0 or 1 and y is an integer of 1 to 10,
or a group of the formula of ##STR28## in which R29 is a hydrogen atom, a halogen atom or an alkyl group and each of z'"'"'s is independently an integer of 0 to 8, R26 is a trivalent or tetravalent hydrocarbon moiety, u is an integer of 0 to 10, and v is the number of groups bonding to R26 which number is an integer of 3 or 4. -
16. The composition of claim 4 and 8, wherein the (E) polymerization initiator is a radical polymerization initiator.
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17. The composition of claim 16, wherein the radical polymerization initiator is an azo compound of which 10 hours half-life decomposition temperature is 60°
- C. or lower in toluene.
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18. The composition of claim 17, wherein the azo compound is 2,2'"'"'-azobis(4-methoxy-2,4-dimethylvaleronitrile), 2,2'"'"'-azobis(2-cyclopropylpropionitrile) or 2,2'"'"'-azobis(2,4-dimethylvaleronitrile).
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19. The composition of claim 5, wherein the (F) hindered phenol compound has the formula (IV), ##STR29## wherein each of X'"'"' and X" is independently CH3 or t-C4 H9, m is 0, 1, 2 or 3, and B is ##STR30## when m=1, any one of ##STR31## when m=1, any one of ##STR32## when m=2, or ##STR33## when m=3.
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20. A molded article of a cured polymer formed by crosslink-polymerization of the polymerizable composition as recited in claim 1.
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21. An organic glass formed of the molded article of a cured polymer as recited in claim 20.
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22. An ophthalmic lens formed of the molded article of a cured polymer as recited in claim 20.
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Specification