Elastomeric crosslinked poly(1,3-dioxlane)
US5286808A · kind A · utility
3Cited by
4References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 25, 1991 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Jul 25, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Crosslinked elastomeric acetal polymers are made by the copolymerization of 1,3-dioxolane with a smaller amount of one or more bifunctional monomers. The two functional groups of the bifunctional monomer react under the same cationic polymerization conditions as the 1,3-dioxolane. The elastomeric acetal polymer does not crystallize even when the temperature is as low as -50.degree. C. The elastomeric acetal polymer is particularly useful for blending with crystalline acetal polymers to yield a composition with improved impact resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.