Crosslinked elastomeric acetal polymers
US5412042A · kind A · utility
1Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1991 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Jul 25, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G4/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A crosslinked elastomeric acetal polymer is synthesized from 1,3-dioxolane, 1,3-dioxepane, and a polyfunctional crosslinking compound having two or more functional groups that react under conditions of cationic polymerization, such as 1,4-divinyloxybutane or poly(butadiene oxide). The polymers are elastomeric and non-crystalline at temperatures well below room temperature. They can be blended with crystalline acetal polymers to produce blends that have improved impact properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.