Solidification matrix using a polycarboxylic acid polymer
AssigneeEcolab USA Inc.
InventorsBrenda L. Tjelta, Lisa M. Sanders, Michael E. Besse
Life of this patent
Estimating the term…
Abstract
A solidification matrix includes a polycarboxylic acid polymer, sodium carbonate, and water. Exemplary polycarboxylic acid polymers include a polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, a modified polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, and a polymaleic acid polymer having a molecular weight of between about 500 and about 5,000. The polycarboxylic acid polymer, sodium carbonate, and water interact to form a hydrate solid. The solidification matrix may be used, for example, in a solid detergent composition.
Claims19
A solid detergent composition consisting essentially of:
- a polycarboxylic acid polymer selected from the group consisting of:
- a polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, a modified polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, and a polymaleic acid polymer having a molecular weight of between about 500 and about 5,000;
- sodium carbonate;
- water;
- less than 0.5% by weight phosphorous;
- and
- at least one functional ingredient;
- wherein the solid detergent composition is a hydrate solid, and if heated at a temperature of 120 degrees Fahrenheit, the solid detergent composition is dimensionally stable and has a growth exponent of less than 2%.
A solid detergent composition consisting essentially of:
- (a) between about 0.1% and about 15% polycarboxylic acid polymer by weight of the solid detergent composition, wherein the polycarboxylic acid polymer is selected from the group consisting of:
- a polyacrylic acid having a molecular weight of between about 1,000 and about 100,000, a modified polyacrylic acid having a molecular weight of between about 1,000 and about 100,000, and a polymaleic acid having a molecular weight of between about 500 and about 5,000;
- (b) between about 2% and about 50% water by weight of the solid detergent composition;
- (c) less than about 40% builder by weight of the solid detergent composition;
- (d) between about 20% and about 85% sodium carbonate by weight of the solid detergent composition;
- (e) between about 0.5% and about 8% surfactant by weight of the solid detergent composition;
- and
- (f) less than about 0.5% phosphorus by weight of the solid detergent composition;
- (g) wherein the solid detergent composition is a hydrate solid, and if heated at a temperature of 120 degrees Fahrenheit, the solid detergent composition is dimensionally stable and has a growth exponent of less than 3%.
A composition consisting essentially of:
- (a) a solidification matrix consisting of sodium carbonate, water, at least one polymaleic acid, and at least one of a polyacrylic acid, a modified polyacrylic acid and a carboxylic acid salt, which interact to form a hydrate solid, wherein the solidification matrix is phosphorous free;
- and
- (b) at least one functional ingredient, wherein if the composition is heated at a temperature of 120 degrees Fahrenheit, the composition is a dimensionally stable solid and has a growth exponent of less than 3%.
A method of forming a solid detergent composition, the method consisting essentially of:
- combining sodium carbonate and at least one functional component to form a powder pre-mix;
- and
- mixing the powder pre-mix with a liquid pre-mix, the liquid pre-mix comprising water, at least one polymaleic polymer having a molecular weight of between about 500 and about 5,000, at least one polyacrylic acid polymer having a molecular weight of between about 1,000 and about 100,000, wherein the sodium carbonate, water, polymaleic polymer and polyacrylic acid polymer interact to form a hydrate solid wherein the solid detergent composition is a hydrate solid and if heated at a temperature of 120 degrees Fahrenheit, the solid detergent composition is dimensionally stable solid and has a growth exponent of less than 2%.
A solid detergent composition consisting essentially of:
- (a) between about 0.1% and about 15% by weight polyacrylic acid polymer;
- (b) between about 0.1% and about 15% by weight polymaleic acid polymer;
- (c) between about 2% and about 50% by weight water;
- (d) less than about 40% by weight builder;
- (e) between about 20% and about 85% by weight sodium carbonate;
- (f) between about 0.5% and about 8% by weight surfactant;
- and
- (g) less than about 0.5% by weight phosphorus;
- (h) wherein the polyacrylic acid polymer, polymaleic polymer, water and sodium carbonate interact to form a hydrate solid, and wherein if heated at a temperature of 120 degrees Fahrenheit, the solid detergent composition is dimensionally stable and has a growth exponent of less than 3%.
Dependencies are inferred from the claim text.