Detergent product
US7179780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | May 25, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/38663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an article comprising: (a) a liquid composition comprising: (i) enzyme; and (ii) from 0% to 10% (by weight of said liquid composition) free water, preferably 0% to 5% free water; and (iii) carboxylic acid comprising 5 carbon atoms or less, and 1 or 2 carboxy groups; and (iv) chelating agent; and (v) enzyme stabilizing metal ion system consisting of calcium ions and magnesium ions, present in a weight ratio of calcium ion to magnesium ion of from 1:1 to 4:1; and (vi) from 0% to 0.2% (by weight of said liquid composition) source of borate ions; and (b) a water-soluble polymeric material that is capable of being cross-linked by borate ions, preferably a water-soluble polymeric material comprising poly-vinyl alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.