Polyurethanes prepared from amide linkages-containing diamine chain extender
US5834580A · kind A · utility
16Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1995 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane elastic products prepared by a two-stage process are disclosed. In the first stage, polyols are reacted with diisocyanates to form prepolymers. The prepolymers are then reacted with diamine chain extenders which contain amide linkages, to form polyurethane elastic products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.