US 11,796,914 B2
Photosensitive resin structure for printing plate, and method for producing same
Shusaku Tabata, Tokyo (JP); Masaki Matsumoto, Tokyo (JP); and Ryo Ichihashi, Tokyo (JP)
Assigned to ASAHI KASEI KABUSHIKI KAISHA, Tokyo (JP)
Appl. No. 16/632,021
Filed by ASAHI KASEI KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Jul. 20, 2018, PCT No. PCT/JP2018/027286
§ 371(c)(1), (2) Date Jan. 17, 2020,
PCT Pub. No. WO2019/017474, PCT Pub. Date Jan. 24, 2019.
Claims priority of application No. 2017-140762 (JP), filed on Jul. 20, 2017; application No. 2017-205954 (JP), filed on Oct. 25, 2017; and application No. 2018-018523 (JP), filed on Feb. 5, 2018.
Prior Publication US 2020/0150533 A1, May 14, 2020
Int. Cl. G03F 7/09 (2006.01); B41C 1/10 (2006.01); C08L 53/02 (2006.01); C08L 75/04 (2006.01); C08L 77/00 (2006.01); G03F 7/031 (2006.01); G03F 7/11 (2006.01)
CPC G03F 7/091 (2013.01) [B41C 1/10 (2013.01); C08L 53/02 (2013.01); C08L 75/04 (2013.01); C08L 77/00 (2013.01); G03F 7/031 (2013.01); G03F 7/11 (2013.01)] 15 Claims
 
1. A photosensitive resin structure for a printing plate, comprising:
a support (A);
a photosensitive resin composition layer (B) comprising a thermoplastic elastomer (B-1) comprising a monovinyl-substituted aromatic hydrocarbon and a conjugated diene, an ethylenically unsaturated compound (B-2), and a photopolymerization initiator (B-3); and
a non-infrared ray-shielding layer (C) ablatable with an infrared ray, wherein
the non-infrared ray-shielding layer (C) comprises a polymer (C-2) having carboxylate groups and ester bond groups in a molecule thereof and an infrared ray absorber (C-3),
the ester bond groups contained in the polymer (C-2) have a saturated hydrocarbon chain of 2 to 8 carbon atoms, and
the polymer (C-2) comprises a structure in which a carbon bonded to one of the carboxylate groups is adjacent to a carbon bonded to one of the ester bond groups, and a proportion of the adjacent bonds relative to all ester bond groups contained in the polymer (C-2) is 15% or more.