Optical product prepared from high index of refraction brominated monomers
First Claim
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1. 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 --CH3, and RA is a straight or branched alkyl.
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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.
159 Citations
39 Claims
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1. An optical product comprising:
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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 --CH3, and RA is a straight or branched alkyl. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A microstructure-bearing optical product comprising a base and an optical layer, the optical layer being prepared from a polymerizable composition comprising:
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an alkyl-substituted brominated phenolic ester(meth)acrylate monomer; methyl styrene monomer; and aromatic (meth)acrylate comonomer. - View Dependent Claims (37)
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38. 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.
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39. 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 --CH3, and RA is a straight or branched alkyl.
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Specification