Polymer compositions and methods
US10982036B2 · kind B2 · utility
4Cited by
53References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2110/0083
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention encompasses polyurethane compositions comprising aliphatic polycarbonate chains. In one aspect, the present invention encompasses polyurethane foams, thermoplastics and elastomers derived from aliphatic polycarbonate polyols and polyisocyanates wherein the polyol chains contain a primary repeating unit having a structure: In another aspect, the invention provides articles comprising the inventive foam and elastomer compositions as well as methods of making such compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.