Hard waxes comprising terpolymers of ethylene with unsaturated c

Details Hard waxes comprising terpolymers of ethylene with unsaturated c Hard waxes comprising terpolymers of ethylene with unsaturated c

1982-02-16

1983-09-27

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Wax containing

106271, C08L 9106

Patent

active

044067054

ABSTRACT:
Water-emulsifiable hard waxes consisting of homogeneous terpolymers of ethylene with--based on weight of terpolymer--from 1 to 8% by weight of C.sub.3 -C.sub.8 -olefinically unsaturated carboxylic acids and from 0.5 to 10% by weight of C.sub.1 -C.sub.12 -alkyl esters of such unsaturated carboxylic acids and having a Staudinger index, determined according to DIN 53,728, of from 5 to 55, an acid number of from 8 to 62 and a Hoppler hardness, measured by DFG standard method M-III-9a(57), at 23.degree. C., of from 250 to 800 bar, are obtained by copolymerizing ethylene with olefinically unsaturated C.sub.3 -C.sub.8 -carboxylic acids and esters of such acids with C.sub.1 -C.sub.12 -alkanols in a continuous process in the presence of a free radical initiator at from 150.degree. to 300.degree. C. under a pressure of from 1,000 to 3,000 bar, using a weight ratio of ethylene:acid:acrylate of from 500:1:1 to 20:1:1, in a one-phase polymerization medium in which the monomers are soluble, in the presence of from 0.01 to 8% by weight, based on the sum of the monomers, of a regulator, from 3 to 25% by weight of the ethylene being converted and the copolymer formed being removed continuously from the reaction zone.

REFERENCES:
patent: 3658741 (1972-04-01), Knutson et al.
patent: 3909280 (1975-09-01), Dench et al.
patent: 3963772 (1976-06-01), Takeshita

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