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US 10,202,485 B2Granted
Polymerizable composition for optical material, optical material, and method of manufacturing optical material
AssigneeMitsui Chemicals, Inc.
InventorMasakazu Murakami
Life of this patent
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Abstract
The polymerizable composition for an optical material of the present invention includes: (A) a compound having a carbon-carbon triple bond and at least one group selected from an isocyanate group and an isothiocyanate group in a molecule; and (B) a polythiol compound.
Claims9
A polymerizable composition for an optical material, comprising:
- (A) a compound represented by following general formula (1);
- and
- (B) a polythiol compound,
- wherein, in formula (1), A1 represents an alkylene group of 1 to 4 carbon atoms which may be substituted or a phenylene group which may be substituted, wherein a carbon-carbon triple bond directly bonds to the alkylene group or the phenylene group, n is an integer of 0 or 1, R1 represents an isocyanate group or an isothiocyanate group, and R2 represents a hydrogen atom, an alkyl group of 1 to 4 carbon atoms or a group represented by the following formula;
- wherein, A2 and R3 have the same meaning as A1 and R1, respectively, and may be the same as or different from these groups, and * represents a coupling hand.
2 more elements
Dependencies are inferred from the claim text.