EP 0584709 B1 19981021 - Use of water soluble copolymers based on acrylamidoalkylenesulfonic acids as detergent additives
Title (en)
Use of water soluble copolymers based on acrylamidoalkylenesulfonic acids as detergent additives
Title (de)
Verwendung von wasserlöslichen Copolymeren auf Basis von Acrylamidoalkylensulfonsäure als Waschmittelzusatz
Title (fr)
Utilisation de copolymères d'acides acrylamidoalkylènesulphoniques en tant qu'additifs pour détergents
Publication
Application
Priority
DE 4227912 A 19920822
Abstract (en)
[origin: EP0584709A2] The present invention relates to the use of water-soluble copolymers based on acrylamidoalkylenesulphonic acid, vinylacetamide and, where appropriate, other monomers, containing 5 - 90% by weight of structural units of the formula <IMAGE> in which R<1> is hydrogen or methyl, R<2> is C2-C10-alkylene, preferably C2-C6-alkylene, particularly preferably C4-alkylene and Me is ammonium or an alkali metal ion, 5 - 95% by weight of structural units of the formula <IMAGE> in which R<3> and R<4> are, independently of one another, hydrogen, methyl or ethyl, or R<3> and R<4> together are a propylene group which forms, with inclusion of a radical <IMAGE> a pyrrolidone radical, 0 - 90% by weight of structural units of the formula <IMAGE> in which X is a halogen, preferably chloride, R<5> and R<6> are, independently of one another, C1-C6-alkyl, preferably C1-C3-alkyl, especially methyl or ethyl, and 0 - 90% by weight of structural units of the formula -CHR<7>-CHR<8>- in which R<7> is hydrogen or methyl and R<8> is CONH2, CON(CH3)2, cyano, SO3H, SO3Me, C6H4SO 3H, C6H4SO3Me, CH2SO3H, CH2SO3Me, COOH, COOMe or an ester group COOR where R is C1-C15-alkyl, preferably C1-C8-alkyl, as detergent additive to prevent reuptake of dyes and dye degradation products which have dissolved off.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C11D 3/0021 (2013.01 - EP US); C11D 3/378 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0584709 A2 19940302; EP 0584709 A3 19960508; EP 0584709 B1 19981021; AT E172489 T1 19981115; CA 2104507 A1 19940223; DE 59309078 D1 19981126; ES 2123601 T3 19990116; JP H06179893 A 19940628; US 5607618 A 19970304
DOCDB simple family (application)
EP 93113207 A 19930818; AT 93113207 T 19930818; CA 2104507 A 19930820; DE 59309078 T 19930818; ES 93113207 T 19930818; JP 20528593 A 19930819; US 10922993 A 19930819