Solidification matrix using a polycarboxylic acid polymer
US7763576B2 · kind B2 · utility
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23References
22Claims
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Key dates
| Filing date | Jan 4, 2008 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Jan 4, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.