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EP0154380A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Laundering agent

Assignee: Stamicarbon BV
•
Filing: 1985-03-01
•
Granted: —
•
Expires: 2005-03-01
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Abstract

Abstract A laundering agent is provided which contains active detergent, builders, a combination of polyphosphate with zeolite as sequestering agent and, if desired, further usual additives, wherein the sequestering effect of the polyphosphate-zeolite combination is enhanced by an ethercarboxylic acid of the formula RO-(C 2 H 4 O) x -CH 2 COOM or R-CO-NH-(C 2 H 4 O) x -CH 2 COOM, wherein R is the residue of an aliphatic or alkyl aromatic hydrocarbon having at least 8 carbon atoms, x is a number having an average value of 0.5-20 and M is hydrogen or a cation permissible in laundering agents, said polyether carboxylic acid being present in an amount of 0.3-10%, preferably 0.3-5%, based on the entire composition.

Inventors

  • 👤 Nicolaas Adrianus Ignatius Van Paassen

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 15:13
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128; C11D1/00; C11D1/02; C11D1/04; C11D1/06; C11D3/04; C11D3/06

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 91 words
1) Laundering agent containing active detergent, builders, a combination of polyphosphate with zeolite and, if desired, further usual additives, characterized in that it also contains 0.3-10% of an ethercarboxylic acid of the formula RO-(C 2 H 4 0) x -CH 2 COOM or R-CO-NH-(C 2 H 4 0) x -CH 2 COOM, wherein R is the residue of an aliphatic of alkyl aromatic hydrocarbon having at least 8 carbon atoms, x is a number having an average value of 0.5-20 and M is hydrogen or a cation permissible in laundering agents.
Claim 2
Dependent Claim 91 words
1) Laundering agent containing active detergent, builders, a combination of polyphosphate with zeolite and, if desired, further usual additives, characterized in that it also contains 0.3-10% of an ethercarboxylic acid of the formula RO-(C 2 H 4 0) x -CH 2 COOM or R-CO-NH-(C 2 H 4 0) x -CH 2 COOM, wherein R is the residue of an aliphatic of alkyl aromatic hydrocarbon having at least 8 carbon atoms, x is a number having an average value of 0.5-20 and M is hydrogen or a cation permissible in laundering agents.
Claim 3
Dependent Claim 22 words
2) Laundering agent according to claim 1, characterized in that it contains 0.3-5% of an ethercarboxylic acid as defined in claim 1.
Claim 4
Dependent Claim 45 words
3) Laundering agent according to claim 1 or 2, characterized in that the ethercarboxylic acid is a compound of the formula RO-(C 2 H 4 0) 4 . 5 CH 2 COONa, wherein R is the residue of a mixture of lauryl and myristyl alcohols.

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