Detergent compositions with combinations of acrylic and maleic acid homopolymers and/or salts thereof for aluminum protection
US8263540B2 · kind B2 · utility
7Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2010 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Aug 27, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3757
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A warewashing detergent composition is provided for use for in cleaning of alkaline sensitive metals such as aluminum or aluminum containing alloys. The compositions include alternatives to sodium tripolyphosphate and/or other phosphorous containing raw materials, while retaining cleaning performance and corrosion prevention. According to the invention, a synergistic combination of polyacrylic and polymaleic polymers are used as corrosion inhibitors in traditional alkaline detergent compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.