Patent ID: 8791199

Claim:
A monomer composition of formula (I): R-(AO) m -(BO) n —R′ (I), wherein: m is an integer between 20 and 40, and n is an integer of less than 150, A is ethylene, and B is an alkylene group having 3 to 4 carbon atoms; R is a polymerisable unsaturated group; R′ is a mixture comprising linear alkyl groups of 9 to 20 carbons and a branched alkyl group of formula (II): CH 3 —(CH 2 ) p —CH(CH 2 ) r CH 3 —(CH 2 ) q — (II); wherein p and q are each independently an integer, at least one of which is non-zero, such that: 5<p+q<13; and r is an integer between 0 and 5, inclusive.