Process of preparation of polyols and polyamines, and products as obtained
US9605145B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 15, 2012 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Nov 15, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/37
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the use of a compound of formula (I): wherein: —R represents —OH or —NH2; —A1 represents a divalent alkylene radical, straight or branched, having from 2 to 20 carbon atoms; —A2 represents a divalent alkylene radical, straight or branched, having from 1 to 20 carbon atoms; —X1 and X2 represent, independently of each other, —NH— or —O—; —A3 represents a divalent alkylene radical, straight or branched, having from 1 to 10 carbon atoms; —Z represents a hydrogen or a group of formula (A′): wherein A1, A3 and R are as defined above in formula (I), for the preparation of a polymer chosen among polyurethane, polyester and polyamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.