Patent ID: 7244801

Claim:
A catalyst composition comprising: the reaction product of: i) a material having the structure wherein R 1 is an organic radical having 6 to 25 carbon atoms R 2 is an organic radical having 1 to 20 carbon atoms; R 3 and R 4 are independently alkyl or phenyl groups having 1 to 8 carbon atoms; Z is oxygen or nitrogen and when Z is oxygen R 5 is absent and when Z is nitrogen, R 5 is and when R 5 is each R 2 , each R 3 and each R 4 are the same or different, and n is 1 to 4, but when Z is nitrogen, R 2 is an alkylene having between 1 and 4 carbon atoms, and R 3 and R 4 are both alkyl groups having between 1 and 4 carbons; and (ii) an acidic hydrogen-containing compound.