Composition and process for the preparation of segmented polyester-urethane polymers
US4102868A · kind A · utility
8Cited by
6References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Aug 16, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2380/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing segmented polyester-urethane polymers and polymers made by the process are described. Organic solvents are not required, and the process minimizes randomization resulting from ester interchange. The polymers resulting from the process exhibit generally low hysteresis over a wide temperature range, depending on the composition, and are suitable for tires, hoses, belts, and gaskets. Molding by extrusion, injection and compression techniques can be employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.