C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
134/3.3
C11D 3/37 (2006.01)
Patent
CA 1265019
Abstract of the Disclosure: Washing agents contain, as additives for inhibiting redeposition and promoting the primary washing action, homopolymers of acrylic acid and of methacrylic acid, copolymers of acrylic acid and meth- acrylic acid and copolymers which contain, as essential components, (a) an ethylenically unsaturated dicarboxylic acid of 4 to 6 carbon atoms and (b) acrylic acid, methacrylic acid and/or hydroxy-C2-C6- alkyl esters of ethylenically unsaturated C3-C6-carboxy- lic acids as copolymerized units, where the homo- and copolymers in the form of the free acids have a weight average molecular weight of from 5000 to 500,000 in the neutralized or amidated form, the carboxyl groups of the homo- and copolymers in each case being par- tially or completely neutralized with amines of the for- mula Image where R is C8-C18-alkyl or R1-O-CH2-(CH2)n-, n is from 1 to 3, R1 is C1-C18-alkyl, R2 and R3 are each H or C1-C18-alkyl and R3 may furthermore be , R4 is H, CH3, C2H5 and m is from 1 to 3, and/or from 5 to 50% of the said carboxyl groups being in the form of amides derived from primary and secondary amines of the formula I.
514584
Denzinger Walter
Hartmann Heinrich
Hettche Albert
Klahr Erhard
Trieselt Wolfgang
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
Denzinger Walter
Hartmann Heinrich
Hettche Albert
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