Aliphatic/semi-aromatic block copolyamide
US9688823B2 · kind B2 · utility
0Cited by
4References
17Claims
0Family size
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Key dates
| Filing date | Nov 13, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Nov 13, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2377/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a method for the melted production, especially by reactive extrusion, of block copolyamide comprising at least one aliphatic polyamide block and at least one semi-aromatic block, especially wherein the aromatic group has at least one hydroxyl or sulfonate function. The invention also relates to the block copolyamide that can be produced by said method; to a composition comprising the block copolyamide; to granules comprising such a copolyamide or such a composition; to a method for producing an item from a copolyamide or a composition of said copolyamide; and to uses of the copolyamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.