公开(公告)号：DE1204824B

公开(公告)日：1965-11-11

申请号：DEB0064098

申请日：1961-09-22

Applicant: BASF AG

Inventor： NAARMANN DR HERBERT ,  KASTNING DR ERNST-GUENTHER ,  SCHROEDER DR GERD

IPC: C08F10/00 ,  C08F20/54 ,  C08F22/36

Abstract: Copolymers of ethylene with up to 50% by weight of one or more polymerizable ethylenically unsaturated compounds that are non-gaseous under the conditions of polymerization, at least 1% by weight of the total monomers being a carboxylic amide ethylenically unsaturated in the a ,b position to the carboxylic amide group and if desired, substituted on the amide nitrogen atom, are obtained by polymerizing, in the presence of free radical catalysts, at pressures from 50-600 atmospheres and at temperatures between 50 DEG and 200 DEG C. in a trickle-type reactor or a coil-type reactor, by contacting the ethylene with a thin layer of the polymerizable ethylenically unsaturated compound, which layer contains also the catalyst used. The copolymers produced by this method are waxy and may be readily emulsified in water. Carboxylic amides used are the amide of maleic acid, N-methylol derivatives of carboxylic acids, and alkyl ethers of the above. A long list of vinyl and vinylidene compounds suitable as co-monomers is supplied. Examples relate to the polymerization of ethylene with (1) acrylamide, (2) N-methylol methacrylamide, (3) N-methylol methacrylamide butyl ether, (4) crotonamide, (5) imide of maleic acid, (6) acrylamide and methyl acrylate, (7) methacrylamide and vinyl acetate, (8) N-methylol methacrylamide and ethyl acrylate, (9) N-methylol acrylamide methyl ether, or ethyl ether or hexyl ether, (10) monoamide of maleic acid, (11) N,N1-dimethylol diamide of maleic or fumaric acid, (12) N-hydroxyethyl monoamide of maleic acid.