Copolyesterimides derived from aromatic dicarboxylic acids and aliphatic glycols and films made therefrom
US9637588B2 · kind B2 · utility
3Cited by
12References
15Claims
0Family size
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Key dates
| Filing date | Oct 3, 2014 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Oct 3, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2331/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A film comprising a copolyester wherein said copolyester comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and a comonomer (M) selected from the group consisting of N,N′-bis-(2-hydroxyalkyl)-bicyclo-[2,2,2]-oct-7-ene-2,3,5,6-tetracarboxylic diimide (BODI) and 2-hydroxyalkyl-2-[p-(2-hydroxyethoxycarbonyl)phenyl]-1,3-dioxo-2H-isoindole-5-carboxylate (DOIC), wherein the number of carbon atoms is the 2-hydroxyalkyl group is 2, 3 or 4, and wherein comonomer (M) constitutes a proportion of the glycol fraction of the copolyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.