Preparation of carboxylates of hydroxyl-containing polymers

Details Preparation of carboxylates of hydroxyl-containing polymers Preparation of carboxylates of hydroxyl-containing polymers

1986-09-24

1988-10-18

Ziegler, Jacob

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 60, 525 61, C08F 814, C08F 1606, C08F11606

Patent

active

047788470

ABSTRACT:
Carboxylates of hydroxyl-containing polymers are prepared by reacting a finely dispersed hydroxyl-containing polymer with a carboxylic anhydride in the heterogeneous phase in the presence of a tertiary amine as a catalyst by a method in which an N-alkylimidazole, where alkyl is of 1 to 10 carbon atoms, is used as the catalyst.

REFERENCES:
patent: 3560465 (1971-02-01), Reynolds
patent: 4517277 (1985-05-01), Lynch et al.
patent: 4540743 (1985-09-01), Schultz et al.
R. P. Kruger and R. Gnauck, Plaste und Kautschuk, vol. 28, p. 206, 1981.
Dee et al., "N-Methylimidazole as a Catalyst for Acetylation of Hydroxy Terminated Polymers", Analytic. Chem. (1980), p. 572.

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