| 摘要 |
PCT No. PCT/EP97/00283 Sec. 371 Date Jul. 15, 1998 Sec. 102(e) Date Jul. 15, 1998 PCT Filed Jan. 22, 1997 PCT Pub. No. WO97/27232 PCT Pub. Date Jul. 31, 1997Polymers I suitable as dispersing resins are obtained by reacting A. a polymer II obtained by reacting at least one compound III selected from the group consisting of a) an ester IV of a1) an alpha , beta -unsaturated carboxylic acid V and a2) an alkyl alcohol VI of 1 to 25 carbon atoms, b) an ester VII of b1) vinyl alcohol and b2) a saturated carboxylic acid VIII of 1 to 4 carbon atoms, c) vinyl chloride d) styrene or vinyl benzenes which carry an alkyl group of 1 to 4 carbon atoms on the benzene ring, in the presence of a compound IX which contains an N-oxyl radical function, with B. at least one compound X comprising a) 50 to 100% by weight, based on X, of at least one compound XI selected from the group consisting of a1) an ester XII of a) an alpha , beta -unsaturated carboxylic acid XIII and b) an alkyl alcohol XIV of 2 to 10 carbon atoms which carries at least one polar or acidic group, a2) an amide XV of a) an alpha , beta -unsaturated carboxylic acid XVI and b) ammonia or an amine XVII of 2 to 10 carbon atoms which carries at least one polar or acidic group, a3) N-vinyl compounds XVIII, a4) styrene sulfonic acid or vinylbenzenesulfonic acid which carries an alkyl group of 1 to 4 carbon atoms on the ring, and b) from 0 to 50% by weight based on X, of at least one compound XIX selected from the group consisting of b1) an ester XX of a) an alpha , beta -unsaturated carboxylic acid XXI and b) an alkyl alcohol XXII of 1 to 25 carbon atoms, b2) an ester XXIII of a) vinyl alcohol and b) a saturated carboxylic acid XXIV of 1 to 4 carbon atoms, b3) vinyl chloride, b4) styrene or vinylbenzenes, which carry an alkyl group of 1 to 4 carbon atoms on the benzene ring, in the presence of a compound XXV which contains an N-oxyl radical function, polymer I containing from 10 to 90% by weight of II and in total from 10 to 90% by weight of X. The polymer may be used as dispersing resins for pigment-containing coatings.
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