Back to results
US 5,932,626 AGranted
Optical product prepared from high index of refraction brominated monomers
AssigneeMinnesota Mining and Manufacturing Company
InventorsBettie C. Fong, David B. Olson
Life of this patent
Estimating the term…
Abstract
Described are optical products comprising a base and an optical layer. The optical layer is prepared from a polymerizable composition comprising an alkyl-substituted brominated phenolic ester(meth)acrylate monomer.
Claims39
An optical product comprising:
- a base;
- and
- an optical layer prepared from a polymerizable composition, the polymerizable composition comprising an alkyl-substituted brominated phenolic ester (meth)acrylate monomer of the general formula:
- ##STR16## wherein x is from 1 to 4, R is --H or --CH.sub.3, and R.sup.A is a straight or branched alkyl.
1 more element
A microstructure-bearing optical product comprising a base and an optical layer, the optical layer being prepared from a polymerizable composition comprising:
- an alkyl-substituted brominated phenolic ester(meth)acrylate monomer;
- methyl styrene monomer;
- and
- aromatic (meth)acrylate comonomer.
1 more element
A method of preparing a microreplication-bearing optical product, comprising the steps of
- preparing an polymerizable composition comprising an alkyl-substituted brominated phenolic ester(meth)acrylate monomer, the polymerizable composition being liquid at room temperature;
- depositing the polymerizable composition onto a master negative microstructured molding surface in an amount barely sufficient to fill the cavities of the master;
- filling the cavities by moving a bead of the composition between a preformed base and the master, at least one of which is flexible;
- and
- curing the composition.
2 more elements
A brightness enhancement film comprising
- a base;
- and
- an optical layer prepared from a polymerizable composition, the polymerizable composition comprising an alkyl-substituted brominated phenolic ester (meth)acrylate monomer of the general formula:
- ##STR23## wherein x is from 1 to 4, R is --H or --CH.sub.3, and R.sup.A is a straight or branched alkyl.
1 more element
Dependencies are inferred from the claim text.