Title:
スルホン化共重合体を含有する自動食器洗い用組成物
Document Type and Number:
Japanese Patent JP2011516615
Kind Code:
A
Abstract:
Provided is a copolymer aqueous solution which exerts a high calcium carbonate-deposition suppressing ability even under high hardness condition, has excellent storage stability, and suppresses coloring of a detergent to yellow even when used as a detergent raw material. The water-soluble copolymer aqueous solution includes a water-soluble copolymer and hydrogen peroxide as essential components, in which: the water-soluble copolymer at least includes, as its structure, a structural unit originating from a monoethylenic unsaturated dicarboxylic acid (or dicarboxylate) monomer having 4 to 6 carbon atoms or its anhydride (a) at 30 to 60 mol %, a structural unit originating from a monoethylenic unsaturated monocarboxylic acid (or monocarboxylate) monomer having 3 to 8 carbon atoms (b), and a structural unit originating from a monoethylenic unsaturated monomer having a sulfonic (or sulfonate) group (c); the water-soluble copolymer has a weight average molecular weight of 1,000 or more and 50,000 or less; the water-soluble copolymer aqueous solution has a weight ratio of the hydrogen peroxide of 10 ppm to 50,000 ppm with respect to a solid content of the water-soluble copolymer aqueous solution; and the water-soluble copolymer aqueous solution has a weight ratio of water of 33% to 99%.
Inventors:
Takahiro Tsumori
Masato Nakano
Masato Nakano
Application Number:
JP2010526495A
Publication Date:
May 26, 2011
Filing Date:
March 27, 2009
Export Citation:
Assignee:
THE PROCTER & GAMBLE COMPANY
International Classes:
C11D7/22; C08F220/04; C08F222/02; C08K3/00; C08K5/00; C08L33/02; C08L35/00; C09K23/52; C11D3/04; C11D3/37; C11D3/386; C11D3/395; C11D3/48; C11D3/50; C11D7/10; C11D7/42; C11D7/54
Domestic Patent References:
| JP2000355615A | 2000-12-26 |
Foreign References:
| US6207780B1 | 2001-03-27 | |||
| WO2008017620A1 | 2008-02-14 |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office