Method for treating lignin and for producing a binder composition
US10487101B2 · kind B2 · utility
1Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2014 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J197/005
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to a method for treating lignin, wherein the method comprises the following steps: a) dissolving lignin into an aqueous composition, which contains a compound selected from the class of phenols, while keeping the temperature of the composition at 0-60° C.; and b) allowing the composition to react while keeping the temperature of the composition at 60-100° C. and the pH of the composition at a pH value of 6-14. The invention relates further to a method for producing a binder composition and to dissolve lignin into an aqueous composition different applications thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.