Stabilized polyester compositions and monofilaments thereof for use in papermachine clothing and other industrial fabrics
US7138449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2004 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Mar 10, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L77/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester composition comprising from 90 to 97% by weight of at least one polyester derived from the condensation of 1,4-cyclohexane dimethanol and at least one dicarboxylic acid or an ester thereof, from 0.1 to 5% by weight of at least one primary anti-oxidant defined as an alkyl and/or alkyl peroxy radical scavenger, from 0.1 to 5% by weight of at least one secondary anti-oxidant defined as a compound capable of decomposing a hydroperoxide, from 1 to 4% by weight of at least one polyamide terpolymer. Utility of such a composition includes use in a monofilament yarn or fiber, use in a papermachine clothing including such a monofilament yarn or fiber and/or including the polyester composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.