Armstrong, Westerman, & Hattori, LLP
Composite filament, process for the production of the same, and heat fused article
The invention is aimed to provide a core-sheath type composite filament, in which a functional component is hardly lost due to volatilization during the melt forming; bleeding of the internally added functional component is effectively inhibited; the internally added functional component does not adversely affect spinning properties, stretching properties, strength and dimensional stability; the use of the functional component can be greatly reduced, leading to a reduction of production cost; superior functionalities of deodorizing properties and antimicrobial properties can be exhibited to a maximum extent; even when contacting with water, the functionalities can be kept over a long time; and the composite filament is highly safe to a human body. The invention is also aimed to provide a process for the production of the core-sheath type composite filament as well as a heat fused article obtained from the composite filament. The core-sheath type composite filament of the invention is composed of a core component X and a sheath component Y, wherein the core component X is formed from a first polyolefin resin (H), and the sheath component Y is formed from a second polyolefin resin (L) compounded with at least one functional component (A) selected from the group consisting of a catechin, a saponin, a tea-leaf powder, a tea-leaf extract, and tannin (tannic acid), and a ceramics component (C).
Chisso Corporation Kabushiki Kaisha Erubu
D Y D
D01F Y10T D01F
inventional additional inventional
Akira Tetsuo Takahiro Hiroshi Nobuo Hiroki Tomio Shin-ichi Kimi Masataka
Yamanaka Kanagawa Sugimoto Okamoto Goto Miyamatsu Yamazawa Inoue Yoshida Sano