Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – With soil-release – anti-soiling – coating – or nonabrasive...
Patent
1998-11-03
2000-05-23
Kopec, Mark
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
With soil-release, anti-soiling, coating, or nonabrasive...
510276, 510299, 510361, 510398, 510400, 510434, 510477, 510499, 510517, 510528, C11D 337
Patent
active
060666129
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to laundry detergent compositions that provide improved soil dispersancy benefits. The present invention relates to detergent compositions comprising polymeric polycarboxylates and polyamine soil release agents.
BACKGROUND OF THE INVENTION
Detergent formulators are faced with the task of devising products to remove a broad spectrum of soils and stains from fabrics. It is particularly desirable to remove polar soils, such as proteinaceous and clay from wash surfaces. Polymeric polycarboxylates are used in detergent compositions to disperse and suspend polar, highly charged, hydrophilic particles such as clay.
It is believed, though it is not intended to be limited by theory, that co-polymeric polycarboxylates and higher molecular weight (above 4000 M.W.) homo-polymeric polycarboxylates enhance overall detergent builder performance, when used in combination with other builders by crystal growth inhibition, particulate soil release peptization, and anti-redeposition.
Well known polymeric polycarboxylate materials are derived from acrylic acid, including water-soluble salts of polymerized acrylic acid (homo-polymers), and acrylictmaleic-based copolymers, such as water-soluble salts of copolymers of acrylic acid and maleic acid.
It has now been discovered that compositions comprising the combination of co-polymeric polycarboxylates and/or higher molecular weight (above 4000 M.W.) homo-polymeric polycarboxylates with polyamine soil release agents can be used to provide effective, improved soil dispersing (especially on polar soils) benefits in wash liquors.
Accordingly, it is an object of the present invention to provide improved soil dispersing compositions using polymeric polycarboxylates and polyamine soil release agents. These and other objects are secured herein, as will be seen from the following disclosures.
BACKGROUND ART
The use of polymeric polycarboxylates in detergent compositions is reported in U.S. Pat. No. 4,144,226, Crutchfield et al, issued Mar. 13, 1979 and in U.S. Pat. No. 3,308,067, Diehl, issued Mar. 7, 1967. See also Diehl U.S. Pat. No. 3,723,322; See also European Patent Application No. 66915, published Dec. 15, 1982, as well as EP 193,360, published Sep. 3, 1986.
The following disclose various soil release polymers or modified polyamines; U.S. Pat. No. 4,548,744, Connor, issued Oct. 22, 1985; U.S. Pat. No. 4,597,898, Vander Meer, issued Jul. 1, 1986; U.S. Pat. No. 4,877,896, Maldonado, et al., issued Oct. 31, 1989; U.S. Pat. No. 4,891,160, Vander Meer, issued Jan. 2, 1990; U.S. Pat. No. 4,976,879, Maldonado, et al., issued Dec. 11, 1990; U.S. Pat. No. 5,415,807, Gosselink, issued May 16, 1995; U.S. Pat. No. 4,235,735, Marco, et al., issued Nov. 25, 1980; WO 95/32272, published Nov. 30, 1995; U.K. Patent 1,537,288, published Dec. 29, 1978; U.K. Patent 1,498,520, published Jan. 18, 1978; German Patent DE 28 29 022, issued Jan. 10, 1980; Japanese Kokai JP 06313271, published Apr. 27, 1994.
SUMMARY OF THE INVENTION
The present invention encompasses detergent compositions comprising polyamine soil release agents and polymeric polycarboxylates.
The present invention is directed to a laundry detergent composition comprising: the group consisting of anionic, nonionic, zwitterionic, and ampholytic surfactants, and mixtures thereof; the group consisting of homo-polymeric polycarboxylates having a molecular weight of above 4000 and co-polymeric polycarboxylates, and mixtures thereof; polyamine backbone corresponding to the formula: ##STR1## having a modified polyamine formula V.sub.(n+1) W.sub.m Y.sub.n Z or a polyamine backbone corresponding to the formula: ##STR2## having a modified polyamine formula V.sub.(n-k+1) W.sub.m Y.sub.n Y'.sub.k Z, wherein k is less than or equal to n, said polyamine backbone prior to modification has a molecular weight greater than about 200 daltons, wherein ##STR3## ii) W units are backbone units having the formula: ##STR4## iii) Y units are branching units having the formula: ##STR5## iv) Z units are termi
REFERENCES:
patent: 3308067 (1967-03-01), Diehl
patent: 3723322 (1973-03-01), Diehl
patent: 4144322 (1979-03-01), Crutchfield et al.
patent: 4235735 (1980-11-01), Marco et al.
patent: 4548744 (1985-10-01), Connor
patent: 4597898 (1986-07-01), Vander Meer
patent: 4689167 (1987-08-01), Collins et al.
patent: 4877896 (1989-10-01), Maldonado et al.
patent: 4891160 (1990-01-01), Vander Meer
patent: 4976879 (1990-12-01), Maldonado et al.
patent: 5415807 (1995-05-01), Gosselink
patent: 5565145 (1996-10-01), Watson et al.
patent: 5929010 (1999-07-01), Kellett et al.
Muramatsu Ayako
Murata Susumu
Shindo Kenji
Boyer Charles
Echler, Sr. Richard S.
Kopec Mark
Rasser Jacobus C.
The Procter & Gamble & Company
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