Selenium-containing transparent optical material
AssigneeMitsui Chemicals, Inc.
InventorsKoju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Yoshinobu Kanemura, Masahiko Kusumoto
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Abstract
There are herein disclosed a transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: 1 (Z2)q-(SH)r (2) (Z3)-(X2)s (4) wherein symbols are as defined in the specification.
Claims15
A transparent optical material which contains at least one selenium atom.
A selenium-containing alicyclic compound represented by formula (1):
- 100
- wherein, Y1 and Z1 each represent —CH2—, ═CH—, C atom, Se atom, S atom, SO2, SO or O atom, and the hydrogen atom of methylene or methine may also be substituted by a C1 to C3 lower alkyl group, C1 to C3 lower alkoxy group, C1 to C3 lower alkylthio group, F atom, Cl atom or Br atom;
- X1 represents a functional group selected from an SH group, NCO group, NCS group, acryloyl group, methacryloyl group, vinyloxy group, vinylthio group, vinylseleno group, vinyl carbonate group, vinyl thiocarbonate group, vinyl selenocarbonate group, allyloxy group, allylthio group, allylseleno group, allyl carbonate group, allyl thiocarbonate group, allyl selenocarbonate group, isopropenyloxy group, isopropenylthio group, isopropenylseleno group, isopropenyl carbonate group, isopropenyl thiocarbonate group, isopropenyl selenocarbonate group, epoxy group and thioepoxy group, or an alkyl residue composed of such functional group and an alkylene group having 10 or less carbon atoms;
- l, m, n, o and p represent an integer of 1 to 5, 2 to 10, 0 to 5, 0 to 3 and 2 to 6, respectively.
A selenium-containing polythiol having 3 or more functional groups which is represented by formula (2):
- (Z2)q-(SH)r (2)
- wherein, Z2 represents an alkylene group having at least one Se atom, q represents an integer from 1 to 20 and r represents an integer from 3 to 6.
A selenium-containing aliphatic compound having 2 or more functional groups which is represented by formula (4):
- (Z3)-(X2)s (4)
- wherein Z3 represents an Se atom or an alkylene group including at least one Se atom;
- X2 represents a functional group selected from an acryloyl group, methacryloyl group and thioepoxy group, or an alkyl residue having this functional group;
- and s represents an integer from 2 to 6.
Dependencies are inferred from the claim text.