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US 11,965,072 B2Granted
Semiaromatic polyamide film and laminate obtained therefrom
AssigneeUnitika Ltd.
InventorsYuki Aoyama, Takashi Okabe, Shuhei Yamane, Tomoko Yamanaka
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Abstract
Provided is a semiaromatic polyamide fil having an average linear expansion coefficient in the width direction, measured under conditions of 20 to 125° C., of −90 to 0 ppm/° C.
Claims9
A semiaromatic polyamide film comprising a semiaromatic polyamide of polyamide 9T consisting of 1,9-nonanediamine and/or 2-methyl-1,8-octanediamine, and terephthalic acid, or polyamide 10T consisting of 1,10-decanediamine and terephthalic acid,
- wherein the semiaromatic polyamide film has an average linear expansion coefficient in a width direction, measured under conditions of 20 to 125° C., of −90 to −10 ppm/° C., a moisture absorption elongation in a width direction after 48 hours under conditions of 20° C. and 90% RH of 1.0% or less, and a thickness of 50 μm to 150 μm.
Dependencies are inferred from the claim text.