Solidification matrix comprising phosphinosuccinic acid derivatives
US8748365B2 · kind B2 · utility
12Cited by
12References
9Claims
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Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Sep 13, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0047
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Stability enhancement agents for use in a solidification matrices and solid detergent compositions are described. Stability enhancement is provided by a hydratable salt, water and phosphinosuccinic acid (PSO) derivative binding agents forming a dimensionally stable composition. Preferred phosphinosuccinic acid (PSO) derivatives include phosphinosuccinic acid and mono-, bis- and oligomeric phosphinosuccinic acid (PSO) derivatives. The stability enhancement composition for use in a solid detergent and solid detergent compositions are preferably biodegradable and substantially free of phosphate and NTA-free.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.