Low Tg non-crystalline acetal copolymers
US4788258A · kind A · utility
11Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1987 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Sep 14, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Low Tg copolymers of trioxane and 1,3-dioxolane which have a dioxolane content greater than 65 mol percent and less than about 75 mol percent and an IV of from about 1.0 to about 2.3, and which are non-crystalline at room temperature or above, are disclosed. These polymers, when blended with crystalline oxymethylene polymers, improve the latter's impact properties. They can also be used as adhesives for crystalline oxymethylene polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.