Patent ID: 8278256
Filing Date: 2012-10-02
Classification: C08G,C08L,C10M,C10N

Abstract:
1. Fluoropolyether polymers of formula (I) wherein: A=-(X) wherein A′ is a perfluoropolyether chain comprising one or more repeating units selected from (CF a, b, equal to or different from each other, are 0 or 1; with the proviso that the block A linked to the Q-O— end group has a=1 and the block A linked to the Q′ end group has b=0; B is a block formed of units deriving from one or more olefins, wherein at least one of them is homopolymerizable by radical route, having formula: wherein j is an integer from 1 to 30, j′ is an integer from 0 to 29 with the proviso that (j+j′) is higher than 2 and lower than 30; R B′ is a block deriving from one or more olefins and has formula (Ia) but having at least one of the substituents R z is an integer higher than or equal to 2; z′ is 0 or an integer; z, z′ are such that the number average molecular weight of the polymer of formula (I) is in the range 500-150,000; Q is a C W=F, CF k and q are integers, k ranges from 1 to 4, q is an integer equal to 0 or 1; D, D′ is a bridging group; , and the Tk, Tk′ groups are selected from the group consisting of —SH, —SR′, —NR′ —COR′, —OSO 2 CF 3 , —OCOCl, —OCN, —N(R′)CN, —I, —CHO, —CH(OCH 3 ) 2 , —SO 2 Cl, —C(OCH 3 )═NH, —C(NH 2 )═NH, —CH(OH)CH 2 OH, —CH(COOH) 2 , —CH(COOR′) 2 , —CH(CH 2 OH) 2 , —CH(CH 2 NH 2 ) 2 , —CH(CN) 2 , —CH(CH 2 OCH 2 CH═CH 2 ) 2 , —C(OH) 2 CF 3 , —OH, —CH 2 OH; —COY with Y=OH, OR′, CF 3 , NH 2 , NHR′, NR′R″, or halogen; -D wherein R′, R″ are an alkyl, cycloaliphatic or aromatic group, R′, R″ optionally containing fluorine; an aryl radical formed of one or more aromatic rings, optionally condensed; and an heterocyclic radical, with the proviso that at least one of Q, Q′ is functional end group.