Biaxially stretched polyamide film and laminate film

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221518
APP PUB NO 20220135752A1
SERIAL NO

17431312

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Abstract

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The objective of the present invention is to provide a biaxially stretched polyamide film that is excellent in an impact resistance, a folding pinhole resistance and a friction pinhole resistance and that is produced from a raw material derived from a biomass. The present invention relates to a biaxially stretched polyamide film, comprising 99 to 70 mass % of a Polyamide 6 resin and 1 to 30 mass % of a polyamide resin, wherein at least a part of a raw material of the polyamide resin is derived from a biomass, and the biaxially stretched polyamide film meets the following (a) and (b): (a) the number of Gelbo pinhole defect is 10 or less after the biaxially stretched polyamide film is twisted and bent 1000 times at 1° C. using a Gelbo flex tester, (b) a distance leading to a pinhole formation by a friction resistance pinhole test is 2900 cm or more.

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Patent Owner(s)

  • TOYO BOSEKI KABUSHIKI KAISHA T/A TOYOBO CO. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Endo, Takuro Inuyama, JP 21 44
Goto, Takamichi Inuyama, JP 26 31
Hama, Kosuke Inuyama, JP 6 2
Yamamoto, Shigetomo Osaka, JP 3 15

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