Semi-aromatic copolyamides based on caprolactam
US11261296B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Apr 18, 2018 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Apr 18, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/014
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure provides polyamide 6 copolymers polymerized from caprolactam, tetramethylene diamine, and terephthalic acid monomers. The copolymers exhibit sufficiently high second heat melting points such that they are capable of being processed using traditional melt processing operations, while also being useful for high temperature applications. The copolymer may be used as polymeric base compositions useful for a variety of applications including the manufacture of metal-replacing articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.