Vinyl acylanhydrocitrates and their preparation

Details Vinyl acylanhydrocitrates and their preparation Vinyl acylanhydrocitrates and their preparation

1983-01-18

1983-11-22

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

549253, 526272, C08F 1814, C08F11814, C07D30732

Patent

active

044170378

ABSTRACT:
A vinyl acylanhydrocitrate of the formula ##STR1## in which R denotes hydrogen or lower alkyl is disclosed. The vinyl acylanhydrocitrates can be prepared by initially contacting citric acid with a carboxylic anhydride or carbonyl chloride followed by transesterification of the reaction product either with vinyl acetate in the presence of a catalyst or with acetylene. The vinyl acylanhydrocitrates can be polymerized or copolymerized to form useful products useful for inclusion in adhesive compositions, for crosslinking in coating systems and duromers or, after ring opening with bases, as dispersing auxiliaries or agents to increase the viscosity of aqueous systems.

REFERENCES:
patent: 3441543 (1969-04-01), Heilman
patent: 4282156 (1981-08-01), Gutierrez

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