The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1987
Filed:
Feb. 13, 1986
Masaru Makimura, Kurashiki, JP;
Setsuo Yamashita, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki, JP;
Abstract
There is provided a fabric made of sheath-core type composite fibers in which the core is made of an elastomer (A) and occurs in a fineness of not less than 0.15 denier per core piece and the sheath is either made of sea-island phase whose island component is a nonelastic, fiber-forming polymer (B) and occurs in each fiber in the form of a large number of fine island pieces having a fineness of less than 0.15 denier and whose sea component is a soluble polymer (C), or made of a multilayer laminate phase with the nonelastic, fiber-forming polymer (B) and the soluble polymer (C) occurring radially and alternately. Also provided is a fabric derived from the above fabric by removal of the soluble polymer (C) in the composite fibers by treatment with a solvent. The resultant fabric comprises bicomponent fiber bundles each composed of a core fiber of elastomer (A) and a large number of ultrafine fibers of nonelastic polymer (B) surrounding the core fiber.