Use of an acrylate copolymer as retention aid in a method of making a substrate comprising cellulosic fibres
US10829895B2 · kind B2 · utility
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3References
16Claims
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Key dates
| Filing date | Jan 13, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | May 22, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H23/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b):
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.