FUNCTIONAL FILM AND METHOD FOR PRODUCING SAME

    公开(公告)号:US20240139771A1

    公开(公告)日:2024-05-02

    申请号:US18565645

    申请日:2022-06-10

    CPC classification number: B05D7/546 B05D2201/02 B05D2401/40 B05D2601/22

    Abstract: A functional film 1 according to an embodiment includes: a substrate (10) containing an acetyl cellulose resin; a primer layer (20) containing a filler (40) and disposed on the substrate (10); and a functional layer (30) containing the filler (40) and disposed on the primer layer (20). The substrate (10) has a permeation layer (12) formed by permeation of the resin contained in the primer layer (20) into part of the substrate (10). The permeation layer (12) has a thickness of 0.1 μm or more and 3.5 μm or less. The primer layer (20) has a thickness of 0.1 μm or more and 1.0 μm or less. The filler (40) is silica particles having an average particle size of 20 nm or more and 80 nm or less. The filler (40) in the primer layer (20) has a density of ⅓ or more and ¾ or less of the density of the filler (40) in the functional layer (30). The primer layer (20) and the functional layer (30) each contain a resin. The resin component of the primer layer (20) is the same as the resin component of the functional layer 30.

    COATING MATERIAL, COATING FILM, LAYERED PRODUCT, AND FLEXIBLE FLAT CABLE

    公开(公告)号:US20240132742A1

    公开(公告)日:2024-04-25

    申请号:US18546014

    申请日:2022-03-14

    Inventor: Shoko NAKAJIMA

    CPC classification number: C09D123/12 B05D7/54 C09D7/20 B05D2201/02 B05D2507/02

    Abstract: Disclosed is a coating material comprising 100 parts by mass of an acid-modified polypropylene (A) and at least 450 parts by mass of organic solvents (B), wherein the acid-modified polypropylene has a melting point of 90° C. or lower and the organic solvents (B) comprises 80-99 mass % aromatic hydrocarbon solvent (B1) and 20-1 mass % one or more solvents (B2) selected from the group consisting of ester-based solvents, ketone-based solvents, and alcohol-based solvents, the sum of the proportion of the ingredient (B1) and the proportion of the ingredient (B2) being 100 mass %. The coating material may further contain a compound (C) having, in the molecule, two or more functional groups capable of forming a chemical bond with a carboxyl group, in an amount of 0.1-20 parts by mass. The compound (C) having, in the molecule, two or more functional groups capable of forming a chemical bond with a carboxyl group may be one having no hydrolyzable group. Also disclosed are: a coating film formed from the coating material; a layered product comprising the coating film and a substrate film; and a flexible flat cable including the layered product.

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