Invention Grant
- Patent Title: Polyethylene powder for fiber, fiber, and article
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Application No.: US14689287Application Date: 2015-04-17
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Publication No.: US10597796B2Publication Date: 2020-03-24
- Inventor: Kenya Tanaka , Akio Fujiwara
- Applicant: Asahi Kasei Chemicals Corporation
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei Chemicals Corporation
- Current Assignee: Asahi Kasei Chemicals Corporation
- Current Assignee Address: JP Tokyo
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2014-086756 20140418
- Main IPC: D01F6/04
- IPC: D01F6/04 ; C08F110/02

Abstract:
An object of the present invention is to provide a polyethylene powder for a fiber which is excellent in the color tone of an obtained article and allows an obtained fiber to be highly drawn, and a fiber and an article made of the polyethylene powder for a fiber. The present invention provides a polyethylene powder for a fiber, wherein the intrinsic viscosity measured at 135° C. in decalin is 10 dL/g or higher and 40 dL/g or lower, the total amount of Al, Mg, Ti, Zr, and Hf is 1.0 ppm or higher and lower than 15 ppm, the amount of a particle having a particle size exceeding 355 μm is 2.0% by mass or lower, and the amount of a particle having a particle size of 75 μm or smaller is 3.0% by mass or higher and 50.0% by mass or lower.
Public/Granted literature
- US20150299903A1 Polyethylene Powder for Fiber, Fiber, and Article Public/Granted day:2015-10-22
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