Polymerizable composition

Details Polymerizable composition Polymerizable composition

1996-11-27

1998-04-14

Zitomer, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

351159, 526320, 526321, 5263231, 5263232, 526326, 5263285, 5263295, 5263296, C08F22220, C08F22026

Patent

active

057392439

ABSTRACT:
Describes polymerizable organic compositions of from about 5 to 90 weight percent of a first monomer component which is an alkoxylated diol, e.g., alkoxylated bisphenol, having acrylate or methacrylate groups, e.g., a dimethacrylate of bisphenol A having 25 to 35 ethoxy units, and from about 10 to 95 weight percent of a second monomer component which is different than the first monomer component and has at least three acrylate or methacrylate groups. There may also be present, from 0 to about 85 weight percent of a third polymerizable monomer component which has a single ethylenically unsaturated group that is polymerizable by free radical initiation. 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.

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