Transparent polyamide-imides
US9422429B2 · kind B2 · utility
2Cited by
35References
28Claims
0Family size
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Key dates
| Filing date | May 2, 2013 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | May 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
What is described is a transparent polyamide-imide based on one or more different imido-dicarboxylic acids (AB) or derivatives thereof, and cycloaliphatic diamines (C) comprising 6 to 24 carbon atoms, wherein the imido-dicarboxylic acids (AB) or derivatives thereof are selected from the group of imido-dicarboxylic acids (AB) having the following structural formulas:wherein:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.