Thermoplastic elastic polysulfide polymers
US4190625A · kind A · utility
2Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1978 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Jul 3, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2081/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Polysulfide rubber formulations that become fluid at elevated temperatures but regain the rubbery state upon cooling are disclosed. The products possess a lower permanent set at room temperature and process more easily, particularly in extrusion processes, at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.