Blends of polyetherimides and block poly(esteramides)
US4448937A · kind A · utility
10Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1983 |
| Grant date | May 15, 1984 |
| Priority date | — |
| Expiry date | Apr 21, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/928
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of polyetherimides and block poly(esteramides) may contain about 99-1% by weight of the former and about 1-99% of the latter. Particularly useful are polyetherimides containing about 1-30% of the block poly(esteramide), which have improved impact strength and resistance to brittleness. The blends may also contain at least one poly(alkylene dicarboxylate) as a compatibility improver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.