Patent ID: 6291594
Filing Date: 2001-09-18
Classification: D06M

Abstract:
A sizing composition comprising 1 to 50 weight percent, based on the total weight of the sizing composition, of an anhydride based graft copolymer comprising the reaction product of an ethylenically unsaturated monomer, an anhydride monomer selected from the group consisting of maleic anhydride, itaconic anhydride, and mixtures thereof, a monofunctional polyglycol having the formula selected from the group consisting of:a) R.sup.1 --(CH.sub.2 CHR.sup.3 O).sub.m --R.sup.2 wherein R.sup.1 is OH or NH.sub.2 CHR.sup.3 CH.sub.2, R.sup.2 is an alkyl group having C.sub.1 -C.sub.4 or phenol, m is from about 2 to about 20, and R.sup.3 is independently H, methyl, ethyl, propl, or phenyl;b) R.sup.1 --(CH.sub.2 CHR.sup.3 O).sub.m --(CH.sub.2).sub.n --H in which R.sup.1 is OH or NH.sub.2 CHR.sup.3 CH.sub.2, m is from about 2 to about 20, n is from about 5 to about 20, and R.sup.3 is independently selected from the group consisting of H, methyl, ethyl, propyl, and phenyl;or mixtures thereof, and a free radical initiator.