Polymeric anti-reflection coatings and coated articles
AssigneeAllied-Signal Inc.
InventorsShaul M. Aharoni, Michael J. McFarland, Ajay Nahata, James T. Yardley
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Abstract
Solid bodies having a reflective surface are provided with an anti-reflection coating of a terpolymer composition derived from (a) perfluoroalkylalkyl acrylate or methacrylate, (b) acrylic, methacrylic or itaconic acid, and (c) hydroxyl- containing acrylate or methacrylate.
Claims22
A solid body having a reflective surface, having deposited thereon as an anti-reflection coating a layer of a polymeric composition comprising fluorinated copolymer having a polymer chain composed of ##STR6## units, wherein s, t and u represent weight proportions of the respective X, Y and Z units, and have values within the ranges of
- s=from about 0.5 to about 0.99;
- t=from about 0.005 to about 0.495;
- and
- u=from about 0.005 to about 0.495;
- with the sum of s+t+u being 1;
- X represents units of the composition ##STR7## wherein R.sup.1 is H, --CH.sub.3, or mixtures thereof;
- p is 1 or 2;
- n is an integer of from about 1 to about
- Y represents units of the composition ##STR8## wherein R.sup.2 is H, --CH.sub.3 or --CH.sub.2 COOH;
- Z represents units of the composition ##STR9## wherein R.sup.3 is H, --CH.sub.3, or CH.sub.2 COOC.sub.m H.sub.2m+1, wherein m is an integer of from about 1 to about 4, and
- R.sup.4 is an alkylene bridging group, straight chain, branched or cyclic, having from 1 to about 8 carbon atoms;
- wherein the X, Y and Z units may be arranged in any sequence.
Dependencies are inferred from the claim text.