Non-phosphate machine dishwashing compositions containing polycarboxylate polymers and nonionic graft copolymers of vinyl acetate and polyalkylene oxide
US5750483A · kind A · utility
13Cited by
14References
18Claims
0Family size
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Key dates
| Filing date | Dec 6, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Dec 6, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3761
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved powdered non-phosphate, peroxygen based machine dishwashing compositions comprising a blend of nonionic surfactants, builders, non-chlorine bleach, bleach precursors, enzymes, polycarboxylate polymers and nonionic graft copolymers of vinyl acetate and polyalkyleneoxide wherein spotting and filming are substantially minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.