Lignin based flame retardant compositions and processes for the preparation thereof
US11225608B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2018 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Sep 6, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2201/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to environmentally friendly flame retardant materials based on renewable resources and industrial waste streams. The materials have advantageous intumescent properties, charring, gas phase radical traps and thermal stability. The present invention further relates to processes for the preparation of the flame retardant materials and to plastic materials comprising said flame retardant materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.