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Fluoropolymer blend anti-reflection coatings and coated articles

  • US 5,198,267 A
  • Filed: 06/01/1992
  • Issued: 03/30/1993
  • Est. Priority Date: 09/20/1991
  • Status: Expired due to Fees
First Claim
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1. The method of making an anti-reflection coated body having a reflective surface which comprises applying a solution of a polymeric composition comprising a blend of(a) from about 1 to about 95 percent by weight of amorphous fluoropolymer, with(b) from about 5 to about 99 percent by weight of a fluorinated copolymer having a polymer chain composed of


  • space="preserve" listing-type="equation">--X.sub.s --Y.sub.t --Z.sub.u ]
units, whereins, t and u represent weight proportions of the respective X, Y and Z units, and have values within the ranges ofs=from about 0.5 to about 0.995;

t=from about 0.0025 to about 0.4975; and

u=from about 0.0025 to about 0.4975;

with the sum of s+t+u being 1;

X represents units of the composition ##STR8## wherein R1 is H, --CH3, or mixtures thereof;

p is 1 or 2;

n is an integer of from about 1 to about 40;

Y represents units of the composition ##STR9## wherein R2 is H, --CH3 or --CH2 COOH;

Z represents units of the composition ##STR10## wherein R3 is H, --CH3, or CH2 COOCm H2m+1, wherein m is an integer of from about 1 to about 4, andR4 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.

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