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US 5,854,197 AGranted
Cleaning compositions containing lime-soap dispersant and method of preparation
AssigneeRohm and Haas Company
InventorsYves Duccini, Andrea Claudette Keenan, Jan Edward Shulman
Life of this patent
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Abstract
Cleaning compositions containing a lime-soap dispersant and a method of preparing liquid cleaning compositions containing lime-soap dispersants are disclosed. More specifically, cleaning compositions containing lime-soap dispersant polymers derived from maleic acid, maleic anhydride, or salts thereof, copolymerized with a hydrophobic monomer containing from 4 to 20 carbon atoms are disclosed. Cleaning compositions containing a lime-soap dispersant based on maleic acid/diisobutylene polymers are particulary effective in producing stable liquid cleaning compositions with good lime-soap dispersancy properties.
Claims11
A method for preparing a liquid cleaning composition comprising combining:
- (a) from 0.05 to 10 percent, based on total cleaning composition weight, of a lime-soap dispersant polymer comprising as polymerized units from 20 to 90 percent, based on total polymer weight, of maleic acid monomer selected from one or more of maleic acid, maleic anhydride and water-soluble salts thereof, and from 10 to 80 percent, based on total polymer weight, of a hydrophobe containing from 4 to 20 carbon atoms and selected from one or more of alkenes, dienes, alkynes and aromatic compounds;
- (b) from 0.5 to 30 percent, based on total cleaning composition weight, of soap selected from one or more water-soluble salts of saturated and unsaturated (C.sub.8 -C.sub.24)aliphatic carboxylic acids;
- (c) from 0.1 to 60 percent, based on total cleaning composition weight, of auxiliary additives selected from one or more stabilizers, builders, and water-soluble anionic and non-ionic surfactants;
- and
- (d) water;
- adjusting the pH of the liquid cleaning composition to 5 to 11.5;
- maintaining the ratio of the lime-soap dispersant polymer to the soap from 1/1 to 1/200 by weight;
- and selecting the relative proportions of the lime-soap dispersant polymer, the soap, the auxiliary additives and the water in steps (a) through (d) such that the liquid cleaning composition is stable, and wherein the soap combined with the non-ionic and anionic surfactants is from 15 to 50 percent, based on total cleaning composition weight.
5 more elements
A liquid cleaning composition comprising:
- (a) from 0.05 to 10 percent, based on total cleaning composition weight, of a lime-soap dispersant polymer comprising as polymerized units from 20 to 90 percent, based on total polymer weight, of maleic acid monomer selected from one or more of maleic acid, maleic anhydride and water-soluble salts thereof, and from 10 to 80 percent, based on total polymer weight, of a hydrophobe containing from 4 to 20 carbon atoms and selected from one or more of alkenes, dienes, alkynes and aromatic compounds;
- (b) from 0.5 to 30 percent, based on total cleaning composition weight, of soap selected from one or more water-soluble salts of saturated and unsaturated (C.sub.8 -C.sub.24)aliphatic carboxylic acids;
- (c) from 0.1 to 60 percent, based on total cleaning composition weight, of auxiliary additives selected from one or more stabilizers, builders, and water-soluble anionic and non-ionic surfactants;
- and
- (d) water;
- wherein the soap combined with the non-ionic and anionic surfactants is from 15 to 50 percent, based on total cleaning composition weight;
- wherein the pH of the liquid cleaning composition is 5 to 11.5, the ratio of the lime-soap dispersant polymer to the soap is from 1/1 to 1/200 by weight;
- and wherein relative proportions of the lime-soap dispersant polymer, the soap, the auxiliary additives and the water are selected such that the liquid cleaning composition is stable.
5 more elements
A solid bar cleaning composition comprising:
- (a) from 0.05 to 10 percent, based on total cleaning composition weight, of a lime-soap dispersant polymer comprising as polymerized units from 20 to 90 percent, based on total polymer weight, of maleic acid monomer selected from one or more of maleic acid, maleic anhydride and water-soluble salts thereof, and from 10 to 80 percent, based on total polymer weight, of a hydrophobe containing from 4 to 20 carbon atoms and selected from one or more of alkenes, dienes, alkynes and aromatic compounds;
- (b) from 0.5 to 50 percent, based on total cleaning composition weight, of soap selected from one or more water-soluble salts of saturated and unsaturated (C.sub.8 -C.sub.24)aliphatic carboxylic acids;
- and
- (c) from 20 to 80 percent, based on total cleaning composition weight, of auxiliary additives selected from one or more neutral salts, builders, and water-soluble anionic and non-ionic surfactants;
- wherein the anionic and non-ionic surfactants are from 10 to 50 percent, based on total cleaning composition weight.
2 more elements
Dependencies are inferred from the claim text.