US 11,939,485 B2
Liquid-repellent structure, production method therefor, packaging material, and separation sheet
Ryoji Kato, Tokyo (JP); Kosuke Kinoshita, Tokyo (JP); and Yu Ogihara, Tokyo (JP)
Assigned to TOPPAN INC., Tokyo (JP)
Filed by TOPPAN INC., Tokyo (JP)
Filed on Jun. 16, 2022, as Appl. No. 17/841,906.
Application 17/841,906 is a continuation of application No. PCT/JP2020/045933, filed on Dec. 9, 2020.
Claims priority of application No. 2019-229219 (JP), filed on Dec. 19, 2019.
Prior Publication US 2022/0348785 A1, Nov. 3, 2022
Int. Cl. C09D 127/12 (2006.01); B05D 7/00 (2006.01); B65D 65/42 (2006.01); C09D 5/00 (2006.01); C09D 7/40 (2018.01); C09D 123/30 (2006.01)
CPC C09D 127/12 (2013.01) [B05D 7/546 (2013.01); B65D 65/42 (2013.01); C09D 5/002 (2013.01); C09D 7/67 (2018.01); C09D 7/68 (2018.01); C09D 7/69 (2018.01); C09D 7/70 (2018.01); C09D 123/30 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A liquid-repellent structure, comprising:
a surface to which liquid repellency is to be imparted;
a foundation layer having a surface and disposed to face the surface to which liquid repellency is to be imparted; and
a liquid-repellent layer disposed to face the surface of the foundation layer,
wherein
the foundation layer contains an acid-modified polyolefin,
the liquid-repellent layer contains a fluorine-containing resin and particles,
the fluorine-containing resin contains a hydrophilic structural unit having at least one of an amino group and an amide group, and
the acid-modified polyolefin is obtained by graft-modifying a polyolefin with an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride, or an unsaturated carboxylic acid ester.