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Current content: 157 337 350 patent documents

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219 431 new documents added

1 247 852 documents amended

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EP 0025551 B1 19820922 - USE OF (METH)ACRYLIC ACID AND MALEIC ACID COPOLYMERS AS INCRUSTATION INHIBITORS IN DETERGENTS

Title (en)

USE OF (METH)ACRYLIC ACID AND MALEIC ACID COPOLYMERS AS INCRUSTATION INHIBITORS IN DETERGENTS

Publication

EP 0025551 B1 19820922 (DE)

Application

EP 80105230 A 19800903

Priority

DE 2936984 A 19790913

Abstract (en)

[origin: EP0025551A1] 1. Use of copolymers which, based on the weight of the polymers, contain 40 to 90% of acrylic or methacrylic acid and 60 to 10% of maleic acid as copolymerized units, or of their alkali metal or ammonium salts as incrustation inhibitors in detergents.

IPC 1-7

C08L 33/00; C08L 35/00; C11D 3/37

IPC 8 full level

C08L 33/00 (2006.01); C08L 35/00 (2006.01); C11D 3/00 (2006.01); C11D 3/37 (2006.01)

CPC (source: EP)

C11D 3/3761 (2013.01)

Designated contracting state (EPC)

AT BE DE FR GB IT NL SE

DOCDB simple family (publication)

EP 0025551 A1 19810325; EP 0025551 B1 19820922; EP 0025551 B2 19930107; AT E1589 T1 19821015; DE 2936984 A1 19810402; DE 3060877 D1 19821104

DOCDB simple family (application)

EP 80105230 A 19800903; AT 80105230 T 19800903; DE 2936984 A 19790913; DE 3060877 T 19800903