Process for carboxylation of ethylene-vinyl acetate copolymers o

Details Process for carboxylation of ethylene-vinyl acetate copolymers o Process for carboxylation of ethylene-vinyl acetate copolymers o

1977-01-04

1978-07-25

Holler, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08F26304

Patent

active

041029461

ABSTRACT:
Ethylene-vinyl acetate copolymers or saponified copolymers are carboxylated by copolymerizing an alpha, beta-unsaturated carboxylic acid and/or anhydride thereof with or without at least one vinylidene monomer having the formula: ##STR1## wherein X and Y can be the same or different, and each represents hydrogen, chlorine, alkyl, acetoxy, carboxylic acid ester group or cyano; with an ethylene-vinyl acetate copolymer or a saponified copolymer thereof in the presence of a polymerization initiator in a reaction medium of an acetic acid ester or a mixture of an acetic acid ester and a lower alcohol, wherein the reaction is conducted in a heterogeneous state.

REFERENCES:
patent: 3305606 (1967-02-01), Hardt et al.
patent: 3355516 (1967-11-01), Hardt et al.
patent: 3737483 (1973-06-01), Kosaka et al.
patent: 3749756 (1973-07-01), Kosaka et al.
patent: 3808294 (1974-04-01), Sato et al.
patent: 3949019 (1976-04-01), Zeitlev et al.
patent: 3950209 (1976-04-01), Kosaka et al.

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