C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/306
C08F 220/04 (2006.01) A01N 25/26 (2006.01) C08F 222/02 (2006.01)
Patent
CA 1327254
Abstract of the Disclosure: Water-soluble copolymers having a K value of from 8 to 100 (determined according to H. Fikentscher on sodium salt in aqueous solution at 25°C, a pH of 7 and a polymer concentration of the Na salt of 1% by weight) contain, in polymerized form, a) not less than 15 mol % of one or more monoethy- lenically unsaturated C3-C6-monocarboxylic acids, b) from 0.5 to 84.5 mol % of one or more ethyleni- cally unsaturated C4-C6-dicarboxylic acids, c) from 0 to 20 mol % of one or more hydroxyalkyl esters, where hydroxyalkyl is of 2 to 6 carbon atoms, of monoethylenically unsaturated C3-C6-carboxylic acids, d) from 0 to 30 mol % of other water-soluble, mono- ethylenically unsaturated monomers copolymerizable with a), b) and c), e) from 0.5 to 15 mol % of a comonomer which pos- sesses two or more ethylenically unsaturated, nonconjug- ated double bonds and one or more -CO-OH groups and/or their salt with an alkali metal, ammonium or alkaline earth metal base and, if required, f) up to 10 mol % of one or more comonomers which differ from e) and possess two or more ethylenically un- saturated, nonconjugated double bonds, are prepared by copolymerization of the monomers a) to f) and are used for coating seed.
563542
Boeckh Dieter
Hartmann Heinrich
Seelmann-Eggebert Hans-Peter
Trieselt Wolfgang
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
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