US 5,965,680 AGranted

Optical resin composition from polyol((meth)acryloyl carbonate) monomer

AssigneePPG Industries Ohio, Inc.

InventorsRobert D. Herold, Charles R. Wiedrich, Ajay D. Parkhe, Christopher D. Selvig, Robert A. Smith

Life of this patent

Estimating the term…

Loading patent…

Abstract

Describes polymerizable organic compositions of from about 30 to 95 weight percent of a first monomer component which is a polyol[(meth)acryloyl terminated carbonate], e.g., diethylene glycol bis[(methacryloyloxy)ethylene carbonate)]; and from about 5 to 70 weight percent of at least one monomer component selected from: (i) an alkoxylated diol, e.g., alkoxylated bisphenol, having acrylate or methacrylate groups, e.g., dimethacrylate of bisphenol A having 25 to 35 ethoxy units, (ii) a bis[(meth)acryloyl-terminated]polyethylene glycol, and (iii) a monomer having at least three ethylenically-unsaturated terminal groups. Substantially completely cured polymerizates prepared from such compositions may be used to prepare photochromic articles, e.g., lenses, by incorporating a photochromic substance, e.g., by thermal transfer, into the polymerizate.

Claims11

Dependent claims

A polymerizable organic composition consisting essentially of:

(a) from 30% to 95% by weight, based on the total weight of monomer components, of a first monomer component represented by the following general formula, ##STR16## wherein R is a radical derived from a polyol, R.sub.1 is hydrogen or methyl, i is a whole number from 2 to 6, and B is a divalent linking group selected from the group consisting of straight or branched chain alkylene, cyclic alkylene, phenylene and C.sub.1 -C.sub.4 alkyl substituted phenylene;
and
(b) from 5% to 70% by weight, based on the total weight of monomer components, of a monomer represented by the following general formula, ##STR17## wherein m and n are each a positive number, the sum of m and n being from 20 to 70, R.sub.3 and R.sub.4 are each hydrogen or methyl, R.sub.5 and R.sub.6 are each hydrogen or C.sub.1 to C.sub.2 alkyl, and A is a divalent linking group selected from the group consisting of phenylene, C.sub.1 -C.sub.9 alkyl substituted phenylene, and a group represented by the following general formula, ##STR18## wherein, R.sub.7 and R.sub.8 are each C.sub.1 -C.sub.4 alkyl, chlorine or bromine, p and q are each an integer from 0 to 4, ##STR19## represents a divalent benzene group or a divalent cyclohexane group and X is O, S, --S(O.sub.2)--, --C(O)--, --CH.sub.2 --, --CH.dbd.CH--, --C(CH.sub.3).sub.2 --, --C(CH.sub.3) (C.sub.6 H.sub.5)-- or ##STR20## is the divalent benzene group, and X is O, S, --CH.sub.2 --, or --C(CH.sub.3).sub.2 -- when ##STR21## is the divalent cyclohexane group.

Dependencies are inferred from the claim text.