Method of modifying polymers
US10208132B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 26, 2014 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F2/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of modifying a polymer having hydroxyl groups, selected from the group of polysaccharides and lignin, to give a modified polymer comprising the step of contacting said polymer with at least one organic phosphonate salt in order to chemically modify the polymer, said organic phosphonate salt being in a liquid phase. The method of polymer modification provides novel polymers. Modified polymers obtained from a polymer having been treated with at least one organic phosphonate salt are also disclosed. The modified polymers can be used as such or separated and optionally recovered from the solution, optionally being formed into particular materials or shapes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.