(Co)polyamides obtainable from 1,4-cyclohexanedicarboxylic acid and a diamine of formula H2N-(CH2)2-O-(CH2)2-O-(CH2)2-NH2
US10808077B2 · kind B2 · utility
2Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2017 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Mar 27, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2150/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to (co)polyamides comprising at least 60 mol. % of recurring units of formula (I): (I). The present invention also relates to polymer compositions comprising such (co)polyamides, as well as articles comprising the same and methods of using said articles in high temperature applications requiring sufficient swelling or deformation upon exposure to moisture, such as for example oil and gas extraction processes (e.g. fracturing balls), or as support materials used to print three-dimensional (3D) parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.