Thermoplastic polyetherimide ester polymers exhibiting high flexural modulus
US4760112A · kind A · utility
18Cited by
5References
32Claims
0Family size
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Key dates
| Filing date | Dec 1, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Dec 1, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G73/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyetherimide ester polymers exhibiting a high flexural modulus comprising the reaction products of: PA1 (i) at least one diol; PA1 (ii) at least one dicarboxylic acid or an ester forming reactive derivative thereof; and PA1 (iii) a set of reactants selected from PA2 (a) (1) at least one high molecular weight poly(oxy alkylene)diamine, and (2) at least one tricarboxylic acid or its derivative, or PA2 (b) at least one high molecular weight polyoxyalkylene diimide diacid; wherein the weight ratio of (iii) to (ii) is from about 0.002 to 0.20:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.