Low/non-phosphate detergent tablets comprising neutralized polymer binder incorporated therein
US5922661A · kind A · utility
2Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A detergent tablet is disclosed which comprises at least 50 wt. % of a non-phosphate builder and from 0 to 20 wt. % of a phosphate builder, and has incorporated therein as binder from 0.3 to 5 wt. % of a neutralised polymer of hydrophilic or hydrophobic monomers which have a glass transition temperature (Tg) of from 40 to 120.degree. C., which monomers comprise(meth)acrylic acid, maleic anhydride, alkyl (meth)acrylates, alkylhydroxy (meth)acrylates, or styrene, the polymer having a weight average molecular weight of from 10,000 to 120,000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.