Patent ID: 6239204
Filing Date: 2001-05-29
Classification: C08G,H01M,Y02E

Abstract:
A polyether copolymer having a number-average molecular weight of 50,000 to 2,000,000, a glass transition temperature measured by a differential scanning calorimeter (DSC) of not more than -60.degree. C. and a fusion heat of not more than 70 J/g, comprising:(A) 1 to 98% by mol of a repeating unit derived from a monomer represented by the formula (I): ##STR32##wherein R.sup.1 is a group selected from an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, an aryl group having 6 to 14 carbon atoms, an aralkyl group having 7 to 12 carbon atoms and a tetrahydropyranyl group, and n is from 1 to 12;(B) 95 to 1% by mol of a repeating unit derived from a monomer represented by the formula (II): ##STR33##(C) 0.005 to 15% by mol of a repeating unit derived from a monomer having one epoxy group and at least one reactive functional group which is selected from the group consisting of (a) a reactive silicon group, (b) an epoxy group, (c) an ethylenically unsaturated group and (d) a halogen atom,wherein the copolymer is a random copolymer, and the monomer from which the repeating unit (C) is derived is other than allyl glycidyl ether.