US 11,851,542 B2
Laminated film
Haruki Aono, Otsu (JP); Tadahiko Iwaya, Otsu (JP); Keiko Sawamoto, Otsu (JP); and Yu Abe, Otsu (JP)
Assigned to Toray Industries, Inc., Tokyo (JP)
Appl. No. 17/259,430
Filed by Toray Industries, Inc., Tokyo (JP)
PCT Filed Jul. 1, 2019, PCT No. PCT/JP2019/026059
§ 371(c)(1), (2) Date Jan. 11, 2021,
PCT Pub. No. WO2020/017289, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 2018-133897 (JP), filed on Jul. 17, 2018; application No. 2018-164177 (JP), filed on Sep. 3, 2018; and application No. 2018-242783 (JP), filed on Dec. 26, 2018.
Prior Publication US 2021/0277197 A1, Sep. 9, 2021
Int. Cl. C08J 7/04 (2020.01); B05D 3/12 (2006.01); B05D 5/08 (2006.01); B05D 7/04 (2006.01); C09D 5/20 (2006.01)
CPC C08J 7/0427 (2020.01) [B05D 3/12 (2013.01); B05D 5/08 (2013.01); B05D 7/04 (2013.01); C09D 5/20 (2013.01); B05D 2201/04 (2013.01); B05D 2502/00 (2013.01); B05D 2503/00 (2013.01); B05D 2504/00 (2013.01); C08J 2367/00 (2013.01); C08J 2433/08 (2013.01); C08J 2463/00 (2013.01); C08J 2475/06 (2013.01)] 15 Claims
 
1. A laminated film comprising a polyester film and a resin layer disposed on at least one surface thereof, wherein the resin layer is disposed on at least either of outermost layers thereof; the resin layer has a water contact angle of 85° or more and 100° or less; and the relation |H2-H1|≤1.0 (%) is satisfied where H1 (%) represents haze of the laminated film and H2 (%) represents the haze of the laminated film after a solvent immersion and abrasion test comprising, after immersing the laminated film in methyl ethyl ketone for 10 minutes, a piece of cotton cloth (Haize Gauze NT-4, manufactured by Ozu Corporation) is moved back and forth ten times under a load of 1 kg to abrade the surface of the resin layer using a Gakushin rubbing tester.