High strength polyamide yarn
US10370780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2505/124
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a yarn comprising a copolyamide in an amount of at least 90 wt % with respect to the total weight of the yarn, which copolyamide comprises a) at least 95 wt % by weight with respect to the total weight of copolyamide, monomeric units derived from hexamethylene diamine and adipic acid and b1) cyclic monomeric units derived from a diamine X, and cyclic monomeric units derived from a diacid Y, and/or b2) cyclic monomeric units derived from an amino acid Z, in which the summed amount of monomeric units derived from X,Y and Z is between 0.1 to 4.5 wt % by weight with respect to the total weight of the copolyamide and wherein the yarn has a tensile strength of at least 80 cN/tex as measured according to ASTM D885-04. The invention also relates to a process for preparing the yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.