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:
Dec. 02, 2014
Filed:
Aug. 07, 2007
Yutaka Shirakashi, Shinjuku-ku, JP;
Takayuki Watanabe, Shinjuku-ku, JP;
Osamu Asakura, Shinjuku-ku, JP;
Nobuyoshi Imai, Shinjuku-ku, JP;
Akemi Irikura, Shinjuku-ku, JP;
Yutaka Shirakashi, Shinjuku-ku, JP;
Takayuki Watanabe, Shinjuku-ku, JP;
Osamu Asakura, Shinjuku-ku, JP;
Nobuyoshi Imai, Shinjuku-ku, JP;
Akemi Irikura, Shinjuku-ku, JP;
Aderans Company Limited, Tokyo, JP;
Abstract
An artificial hair and a wig using the same are provided which have the property of thermal deformation expanding upon heating by a hair drier or others used for hair styling. The artificial hairis made by mixing at the pre-determined ratio a semi-aromatic polyamide having a glass transition temperature between 60-120° C. and a resin not expanding in said temperature range. The artificial hair may have a sheath/core structure comprising a core portionB and a sheath portion covering the core portion. As the resin not expanding in said temperature range, polyethylene terephthalate or others can be used, and as the sheath, nylon 6 or nylon 66 can be used. Said artificial haircan maintain its shape at room temperature or after shampooing due to thermal deformation by heating in steam atmosphere at temperature of glass transition or higher or about 80-100° C.