Aqueous compositions containing perfluoropolyether di-carboxylic salts for the oleo-repellent paper treatment
US7666940B2 · kind B2 · utility
6Cited by
6References
26Claims
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Key dates
| Filing date | Feb 10, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Mar 4, 2027 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/56
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Aqueous dispersions comprising a mixture of:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.