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Core-sheath composite fiber and method for producing same

Inactive Publication Date: 2020-05-28
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]According to the present invention, it is possible to provide a core-sheath composite fiber

Problems solved by technology

Nonetheless, an attempt to utilize the conventional core-sheath composite fibers for the aforementioned reinforcement application will cause the following problems.
If the melting points of the sheath member and the core member are close to each other, it is more likely to cause a failure in which the core member is also melted in melting the sheath member, and it is therefore difficult to press the core-sheath composite fibers into a composite material,

Method used

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  • Core-sheath composite fiber and method for producing same
  • Core-sheath composite fiber and method for producing same
  • Core-sheath composite fiber and method for producing same

Examples

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Example

[0023]Next, a core-sheath structured filament according to an embodiment of the present invention will be described.

[0024]It is to be noted that the present invention is not limited only to the following embodiment.

Core-Sheath Structure

[0025]FIG. 1A illustrates a transverse sectional view showing a round cross-section of a core-sheath composite fiber 10 of this embodiment, and FIG. 1B illustrates a vertical sectional view showing a cross-section in a long-side direction of the core-sheath composite fiber 10 of this embodiment.

[0026]The core-sheath composite fiber 10 of this embodiment includes a core member 11, and a sheath member 12 that is wrapped around the core member 11. The core-sheath composite fiber 10 is formed by extrusion. Each of the core member 11 and the sheath member 12 of this embodiment has an external shape with a round cross-section. Note that the external shape of the core member is not limited to such a round cross-section but may be an irregular cross-section p...

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Abstract

Provided is a core-sheath composite fiber which is easily moldable into a composite material or the like and is also excellent in strength. The core-sheath composite fiber comprises a core member containing polyamide and a sheath member containing modified polyethylene, and the core member has a melting point higher by at least 170° C. than a melting point of the sheath member.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the foreign priority benefit 35 U.S.C. § 119 of Japanese patent application No. 2018-220474 filed on Nov. 26, 2018, the disclosure of which is incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to a core-sheath composite fiber and a method for producing a core-sheath composite fiber.DESCRIPTION OF THE RELATED ART[0003]Core-sheath composite fibers are fibers that adopt a composite structure comprising a core member in the form of a filament and a sheath member wrapped around the core member like a sheath. The core-sheath composite fibers are designed to exert various effects that are hardly achievable by single-structured fibers by combining the core member and the sheath member that have different properties from each other. The core-sheath composite fibers have been utilized not only as materials of fabrics for filters and the like but also in a variety of fields including r...

Claims

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Application Information

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IPC IPC(8): D01F8/12D01F8/06
CPCD01F8/12D01F8/06B29C43/006B29C49/0005B29C49/04B29C49/22B29C49/60B29C49/62B29K2023/06B29K2105/12B29K2277/00B29L2031/7172B29C48/0017B29C48/09
Inventor TANAKA, KOTAROSATO, NAOYOSHIHASHI, TAKEHARUFUKUSHIMA, TOSHIHARUMURAYAMA, SUSUMU
Owner HONDA MOTOR CO LTD
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