Polymer film comprising a co-polyamide of at least one diamine, a dicarboxylic acid and a dimer acid
US12030991B2 · kind B2 · utility
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8References
18Claims
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Key dates
| Filing date | Sep 5, 2017 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Sep 5, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2377/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a polymer film (P) contacting at least one copolyamide. The copolyamide is prepared by polymerizing a first monomer mixture (M1), containing at least one C4-C12 dicarboxylic acid and at least one C4-C12 diamine, and a second monomer mixture (M2) containing at least one C32-C40 dimer acid and at least one C4-C12 diamine. The present invention further relates to a process for producing the polymer film (P) and to the use of the polymer film (P) for high-temperature applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.