Patent ID: 6639036
Filing Date: 2003-10-28
Classification: C08F,G03F

Abstract:
An acid-labile polymer represented by following formula 1: where R1, R2 and R6 are independent of each other and respectively include a hydrogen atom or an alkyl, alkoxymethylene, alkoxyethylene, phenyl, alkoxyalkylene, alkylphenyl, alkoxyphenyl, allyl, benzyl, alkylbenzyl, alkoxybenzyl containing 1 to 34 carbon atoms having or not having an hydroxy, ether, ester, carbonyl, acetal, epoxy, nitrile or aldehyde; R2 is alkoxyalkylene group represented by following formula 2: wherein R8 is Hydrogen atom or alkyl group containing C1 to C33 having linear, branched and cyclic group, and R9 is alkyl group containing C1 to C33 having linear, branched and cyclic group; R5 is a hydrogen atom, an alkyl or alkoxy group containing 1 to 18 carbon atoms; R7 is a hydrogen atom, an alkyl group containing 1 to 18 carbon atoms, an alkyl group containing alkoxy 1 to 18 carbon atoms or an alkyl group containing ester of 1 to 18 carbon atoms; R3 and R4 are independent and include a hydrogen atom, hydroxy, nitrile, aldehyde, hydroxymethylene, and alkylcarbonyloxy, alkyl, hydroxyalkylene, alkoxycarbonyl, alkoxymethylene or alkoxyalkanyl group containing 1 to 18 carbon atoms; X is olefin derivatives, vinyl ether derivatives or styrene derivatives containing 1 to 40 carbon atoms, alternatively these derivatives may be comprised of hydroxy, ester, alkoxyalkyloxycarbonyl, ketone or ether; a, b, c, d, e and f are each a number representing a repeating unit in the main chain, wherein a+b+c+d+e+f=1, the content of a and b is 0.1 to 0.7, respectively, (a+b)/(a+b+c+d+e+f)&gE;0.3, the content of c is 0.1 to 0.9, and the content of d, e and f is 0 to 0.9, respectively; and n is an integer of 0 or 1.