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    • 45. 发明授权
    • Polymers suitable as dispersing resins
    • US6008303A
    • 1999-12-28
    • US101687
    • 1998-07-15
    • Franz WeingartWolfgang PaulusStephan Bauer
    • Franz WeingartWolfgang PaulusStephan Bauer
    • C08F291/00B01F17/52C08F257/00C08F259/04C08F263/02C08F265/04C09B67/46C09D17/00C08F14/00
    • C09D17/002C08F257/00C08F259/04C08F263/02C08F265/04C09B67/0085
    • Polymers I suitable as dispersing resins are obtained by reactingA. a polymer II obtained by reacting at least one compound III selected from the group consisting ofa) an ester IV ofa1) an .alpha.,.beta.-unsaturated carboxylic acid V anda2) an alkyl alcohol VI of 1 to 25 carbon atoms,b) an ester VII ofb1) vinyl alcohol andb2) a saturated carboxylic acid VIII of 1 to 4 carbon atoms,c) vinyl chlorided) 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, withB. at least one compound X comprisinga) 50 to 100% by weight, based on X, of at least one compound XI selected from the group consisting ofa1) an ester XII ofa) an .alpha.,.beta.-unsaturated carboxylic acid XIII andb) an alkyl alcohol XIV of 2 to 10 carbon atoms which carries at least one polar or acidic group,a2) an amide XV ofa) an .alpha.,.beta.-unsaturated carboxylic acid XVI andb) 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, andb) from 0 to 50% by weight based on X, of at least one compound XIX selected from the group consisting ofb1) an ester XX ofa) an .alpha.,.beta.-unsaturated carboxylic acid XXI andb) an alkyl alcohol XXII of 1 to 25 carbon atoms,b2) an ester XXIII ofa) vinyl alcohol andb) 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.