Patent ID: 9657437
Date: 2017-05-23
CPC Classifications: C03C,C08G,C08J,C08K,C08L,C09D,D06M,Y10T

Claim:
1. A sized fiber comprising a fiber having a coating of amorphous polyetherketoneketone, said coating comprising about 0.01 to about 10% by weight of the amount of coating in the sized fiber and having a thickness of about 1 micron to about 50 microns, wherein said coating surrounds said fiber surfaces, and wherein the amorphous polyetherketoneketone is comprised of repeating units represented by formulas I and II: wherein A is a p,p′-Ph-O-Ph- group, Ph is a phenylene radical, B is p-phenylene, and D is m-phenylene and the isomer ratio of formula I:formula II (T:I) ranges from about 55:45 to about 65:35.