Fiber for artificial hair and head accessory product

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12031240
SERIAL NO

17296280

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A fiber for artificial hair formed of a polyvinyl chloride-based resin composition. The fiber for artificial hair has a value X1 of a loss tangent tans at 70° C. of 0.06 or more and 0.12 or less, when dynamic viscoelasticity is measured under the following conditions, and has a peak in a temperature range of 90° C. or higher and 110° C. or lower. (Dynamic viscoelasticity measurement conditions) The measurement is performed by sandwiching a bundle of 40 fibers for artificial hair that are arranged at a heating rate of 4° C./min and a frequency of 1 Hz.

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Patent Owner(s)

Patent OwnerAddress
DENKA COMPANY LIMITEDTOKYO 103-8338

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Horihata, Atsushi Kamakura, JP 19 19
Takei, Atsushi Kamakura, JP 39 119

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