Production of hydrolyzed polymaleic anhydride

Details Production of hydrolyzed polymaleic anhydride Production of hydrolyzed polymaleic anhydride

1986-01-21

1987-06-02

Schofer, Joseph L.

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

Synthetic resins

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

5253277, 5253278, 5253296, 525383, 526210, 526212, 526271, C08F 812

Patent

active

046705147

ABSTRACT:
The invention provides a process for the production of hydrolyzed polymaleic anhydride which comprises heating a reaction mixture comprising (a) maleic anhydride, (b) a reactive aromatic solvent, (c) an alcohol or glycol having up to 4 carbon atoms or esters of such an alcohol or glycol with maleic acid, and (d) di-tertiary butyl peroxide, and then hydrolyzing the resulting polymer.

REFERENCES:
patent: 3810834 (1974-05-01), Jones et al.
patent: 3919258 (1975-11-01), Richardson et al.
patent: 4212788 (1980-07-01), Birrell et al.
patent: 4260724 (1981-04-01), Perner et al.

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