Title:
POLYAMIDE-46 MULTIFILAMENT AND SEWING THREAD FOR AIRBAG
Document Type and Number:
WIPO Patent Application WO/2023/038098
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide a polyamide-46 multifilament that has high strength, high-temperature dimensional stability, and excellent stretchability, which have not been attained with any conventional technique, and that is hence suitable for use as a sewing thread for airbags having mechanical properties which can inhibit the sewed portions from suffering an air leakage of a high-temperature high-power gas. The polyamide-46 multifilament has the following physical properties (1) to (3). (1) A strength of 6.0-9.0 cN/dtex and an elongation of 15-30%. (2) A degree of elongation E10(100°C), as measured after stretching 10 times in a 100°C environment, of less than 1.0%. (3) A difference between the elongation under a load of 2.0 cN/dtex at ordinary temperature and the elongation under a load of 2.0 cN/dtex in a 100°C environment of less than 0.5%.
Inventors:
MINAI KAZUSHI (JP)
SHIGENO HISAO (JP)
NAGASE AKIMI (JP)
SHIGENO HISAO (JP)
NAGASE AKIMI (JP)
Application Number:
PCT/JP2022/033826
Publication Date:
March 16, 2023
Filing Date:
September 09, 2022
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F6/60; D02G3/46
Domestic Patent References:
| WO2021182429A1 | 2021-09-16 |
Foreign References:
| JPH05272009A | 1993-10-19 | |||
| JPH07216649A | 1995-08-15 | |||
| JP2009275294A | 2009-11-26 | |||
| JPS5988910A | 1984-05-23 | |||
| JPS5976914A | 1984-05-02 | |||
| JPH01168914A | 1989-07-04 | |||
| JP2002249943A | 2002-09-06 | |||
| JPH06235136A | 1994-08-23 | |||
| JP2012188006A | 2012-10-04 |
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