Melt processable etherimideimide/etherimide copolymer
US5569738A · kind A · utility
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4Claims
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Key dates
| Filing date | Mar 14, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Mar 14, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/1071
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to melt processable copolymer of etherimideimide/etherimide herein-after identified as PEII/PEI copolymer of following structural formula(I). ##STR1## wherein, R and R' are independently selected from the groups of ##STR2## Ar and Ar' are independently selected from the groups of ##STR3## (wherein, R1 is H or C1-C6 alkyl group, PA2 R2 is II or C1-C4 alkyl group, and PA2 R3 is --O--, --CO--, --SO--, --SO2--.); and PA1 n and m are independently an integer between 5 and 500.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.