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Cyclic olefin-derived resin fiber and cyclic olefin-derived resin non-woven fabric

a technology of cyclic olefin and resin fiber, which is applied in the field of cyclic olefin-derived resin fiber and cyclic olefin-derived resin non-woven fabric, can solve the problems of not being reported, not progressing in the practical application of cyclic olefin-derived resin as fiber, and achieves superior electric characteristics

Inactive Publication Date: 2011-09-01
POLYPLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a solution for producing a cyclic olefin-derived resin microfiber and non-woven fabric. By using electrostatic spinning, a polymer solution containing a volatile solvent and a cyclic olefin-derived resin can be spun to form fibers with a diameter of 0.01 μm to 10 μm. The resulting fibers can be used to create a non-woven fabric with superior electric characteristics and heat resistance. The invention offers a new method for producing a high-quality material that can be used in a variety of applications.

Problems solved by technology

However, practical production of a cyclic olefin-derived resin fiber having a fiber diameter in the nano size order, and a cyclic olefin-derived resin non-woven fabric by electrostatic spinning have not been reported.
Furthermore, practical applications of cyclic olefin-derived resins as fibers have not been progressing.
However, a microfiber, and a non-woven fabric configured with microfibers have not been available.

Method used

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  • Cyclic olefin-derived resin fiber and cyclic olefin-derived resin non-woven fabric
  • Cyclic olefin-derived resin fiber and cyclic olefin-derived resin non-woven fabric
  • Cyclic olefin-derived resin fiber and cyclic olefin-derived resin non-woven fabric

Examples

Experimental program
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Effect test

examples

[0074]Materials presented in Table 1 were subjected to spinning using the aforementioned electrostatic spinning apparatus, by an antistatic method under conditions shown in Table 1. A non-woven fabric configured with the cyclic olefin-derived resin fiber was formed. It is to be noted that even if spinning was continued for 8 hrs or longer, clogging and staining of the nozzle needle did not occur.

[Measurement of Average Fiber Diameter]

[0075]The average fiber diameter of the cyclic olefin-derived resin fibers included in the non-woven fabrics configured with the cyclic olefin-derived resin fibers of Examples 1 to 5 was measured using a scanning electron microscope. Specifically, the diameter of arbitrary ten fibers was measured at a magnification of from 5,000 to 10,000 times, and the average value was defined as the average fiber diameter. The results of measurement are shown in Table 1.

TABLE 1Dis-AmounttancePoly-Spin-of dis-Ap-be-Cyclicmerningcharge pliedtweenFiberolefin-concen-tem-...

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Abstract

Provided is a cyclic olefin-derived resin microfiber and a cyclic olefin-derived resin non-woven fabric. A polymer solution containing a volatile solvent and a cyclic olefin-derived resin is subjected to electrostatic spinning. The volatile solvent to be used preferably contains at least one solvent selected from the group consisting of chloroform, toluene, xylene, cyclohexane and decalin. In addition, by using a cyclic olefin-derived resin with a glass transition point of at least 160° C., high heat-resistance can be imparted to a cyclic olefin-derived resin fiber.

Description

TECHNICAL FIELD[0001]The present invention relates to a cyclic olefin-derived resin fiber formed by electrostatic spinning, and a cyclic olefin-derived resin non-woven fabric.BACKGROUND ART[0002]As fibers configuring a non-woven fabric are made to have a smaller fiber diameter, a variety of superior performances such as separation performance, liquid holding performance, wiping performance, masking performance, insulation performance and plasticity are achieved. Thus, minimizing the diameter of the fibers configuring a non-woven fabric is desired.[0003]As a method for producing such a non-woven fabric configured with fibers having a small fiber diameter, electrostatic spinning is exemplified. The electrostatic spinning is a process of spinning to form a microfiber and a non-woven fabric in a single step, in which a high voltage is applied between a nozzle tip charged with a polymer solution and a collector substrate, whereby an electrostatic repulsive force makes the polymer solutio...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D02G3/22D04H13/00D01D5/04D01F6/04D04H1/4291D04H1/728
CPCD01D5/0038D01F6/30Y10T428/298D04H1/728D04H3/16D04H1/4291Y10T442/626
Inventor OKAWA, HIDETOSHI
Owner POLYPLASTICS CO LTD