Phosphate-free cleaning compositions
US4388205A · kind A · utility
22Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Nov 6, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3765
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid phosphate-free wash additive composition comprises an aqueous solution of the following active compounds: PA0 (A) 100 parts by weight of a polycarboxylic acid in the salt form PA0 (B) 2 to 400 parts by weight of an alkali metal gluconate or glucoheptonate PA0 (C) 20 to 700 parts by weight of an alkali metal metasilicate, and PA0 (D) 10 to 150 parts by weight of an alkali metal hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.