High-tenacity conjugated fiber and process for preparation thereof
US4987030A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1988 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Oct 4, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2931
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A conjugated fiber having a sheath-core conjugated structure comprising a polyester core component composed mainly of polyethylene terephthalate and a polyamide sheath component composed mainly of polyhexamethylene adipamide, is disclosed, which has excellent mechanical properties such as a high tenacity, a high modulus, and an improved dimensional stability, and an improved adhesion to a rubber, especially a high-temperature adhesion, an improved heat resistance in a rubber, and a high fatigue resistance, and thus is useful as an industrial material. By adopting a high-speed spinning procedure in the fiber preparing process, the peel resistance in the interface of the sheath-core conjugated structure is greatly improved, and the following valuable characteristics not possessed by conventional conjugated yarns can be obtained: PA1 (1) Excellent adhesion and high-temperature adhesion comparable to those of a polyamide, which cannot be obtained in a polyester. PA1 (2) High modulus and dimensional stability comparable to those of a polyester, which cannot be obtained in a polyamide. PA1 (3) A heat resistance in a rubber and a fatigue resistance superior to those of a polyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.