US 11,883,999 B2
Synthetic polymer film provided with surface having sterilizing effect, method for manufacturing synthetic polymer film and sterilization method using surface of synthetic polymer film
Takahiro Nakahara, Sakai (JP); and Hidekazu Hayashi, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 15/760,797
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Aug. 24, 2016, PCT No. PCT/JP2016/074675
§ 371(c)(1), (2) Date Mar. 16, 2018,
PCT Pub. No. WO2017/047344, PCT Pub. Date Mar. 23, 2017.
Claims priority of application No. 2015-183998 (JP), filed on Sep. 17, 2015.
Prior Publication US 2018/0257329 A1, Sep. 13, 2018
Int. Cl. A61L 2/00 (2006.01); A61L 9/00 (2006.01); B32B 27/00 (2006.01); C08J 7/04 (2020.01); B32B 3/30 (2006.01); C08J 5/18 (2006.01); B82Y 30/00 (2011.01); C08F 20/06 (2006.01); B29C 59/04 (2006.01); C08L 75/16 (2006.01); C09D 4/00 (2006.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); A61L 2/232 (2006.01); B32B 15/095 (2006.01); C08L 75/14 (2006.01); B82Y 40/00 (2011.01); B29C 35/08 (2006.01); B29C 59/02 (2006.01)
CPC B29C 59/046 (2013.01) [A61L 2/00 (2013.01); A61L 2/232 (2013.01); A61L 9/00 (2013.01); B32B 3/30 (2013.01); B32B 15/095 (2013.01); B32B 27/00 (2013.01); C08J 5/18 (2013.01); C08J 7/042 (2013.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/0423 (2020.01); C08J 7/0427 (2020.01); C08L 75/14 (2013.01); C08L 75/16 (2013.01); C09D 4/00 (2013.01); B29C 2035/0827 (2013.01); B29C 2059/023 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C08F 20/06 (2013.01); C08J 2427/12 (2013.01); C08J 2433/06 (2013.01); C08J 2475/16 (2013.01); C08L 2203/16 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A synthetic polymer film having a first surface which has a plurality of raised portions, wherein:
a two-dimensional size of the plurality of raised portions is in a range of greater than 20 nm and less than 500 nm when viewed in a normal direction of the synthetic polymer film, the first surface having a microbicidal effect;
the synthetic polymer film includes a fluorine element in a profile that a fluorine content is not constant in a thickness direction but is higher in a first portion closer to the plurality of raised portions than in a second portion farther from the plurality of raised portions;
the first portion includes a third portion that is formed from a first photocurable resin, the first photocurable resin including a fluorine-containing acrylic monomer, an acryloyl group-containing monomer, and no urethane acrylate monomer;
the first portion further includes a fourth portion that is formed from the first photocurable resin and a second photocurable resin, the second photocurable resin including a urethane acrylate monomer;
the second portion is formed from the second photocurable resin;
the second portion and the fourth portion are in contact with each other;
the entirety of the plurality of raised portions is included in the first portion;
the entirety of the plurality of raised portions is included in the third portion;
the third portion and the fourth portion are in contact with each other; and
the fourth portion is between the third portion and the second portion in the thickness direction.