Neoprene compositions containing triarylphosphines
US3962179A · kind A · utility
4Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Dec 19, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Addition to unvulcanized chloroprene polymer of 0.5-5 parts by weight of certain triarylphosphines per 100 parts of polymer improves the processing safety of unvulcanized stocks of polymer prepared in the absence of elemental sulfur and reduces the compression set of vulcanizates. In chloroprene-sulfur copolymers, the addition of triarylphosphines results in improved flex resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.