US 12,305,071 B2
Hardcoat film and article and image display device having hardcoat film
Yuta Fukushima, Kanagawa (JP); Akio Tamura, Kanagawa (JP); and Tetsu Kitamura, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Dec. 29, 2020, as Appl. No. 17/136,557.
Application 17/136,557 is a continuation of application No. PCT/JP2019/024902, filed on Jun. 24, 2019.
Claims priority of application No. 2018-141893 (JP), filed on Jul. 27, 2018; and application No. 2018-221740 (JP), filed on Nov. 27, 2018.
Prior Publication US 2021/0284866 A1, Sep. 16, 2021
Int. Cl. C09D 183/06 (2006.01); G02B 1/14 (2015.01)
CPC C09D 183/06 (2013.01) [G02B 1/14 (2015.01)] 18 Claims
 
1. A hardcoat film comprising, in the following order:
a substrate;
a hardcoat layer; and
an anti-scratch layer,
wherein the hardcoat layer contains at least one selected from a cured product of polyorganosilsesquioxane (a1) having an epoxy group, a cured product of a compound (a2) having two or more (meth)acryloyl groups in one molecule, or a cured product of a compound (a3) having a polymerizable functional group and inorganic particles;
the anti-scratch layer contains a cured product of a polyorganosilsesquioxane compound (c1) having a group containing a radically polymerizable double bond, and
wherein the polyorganosilsesquioxane (a1) having the epoxy group has a constitutional unit represented by General Formula (1);

OG Complex Work Unit Chemistry
in General Formula (1),
Rb represents a group having an epoxycyclohexyl group,
Rc represents an unsubstituted alkyl group having 1 to 10 carbon atoms,
q and r each represent a proportion of each of Rb and Rc,
q+r=100, q is greater than 0, and r is equal to or greater than 0, provided that q/(q+r) is 0.95 to 1.0,
in a case where there is a plurality of Rb's and Rc's in General Formula (1), the plurality of Rb's and Rc's may be the same as or different from each other respectively, and
in a case where there is a plurality of Rc's in General Formula (1), two Rc's may form a bond to represent an unsubstituted alkylene group having 2 to 20 carbon atoms, or three Rc's may form a bond with each other to represent a trivalent group obtained by removing any one hydrogen atom from an unsubstituted alkylene group having 2 to 20 carbon atoms,
the polyorganosilsesquioxane compound (c1) has a constitutional unit represented by General Formula (2);

OG Complex Work Unit Chemistry
in the General Formula (2),
Ra is a group represented by General Formula (1a): *—R11a—OCO—CR12a═CH2,
wherein in General Formula (1a), * represents a portion linked to Si in General Formula (2), R11a represents an unsubstituted linear alkylene group having 1 to 3 carbon atoms, and R12a represents a hydrogen atom or a methyl group,
Rc represents a monovalent substituent,
t and u each represent a proportion of each of Ra and Rc,
t+u=100, t is greater than 0, and u is equal to or greater than 0;
provided that t/(t+u) is 0.95 to 1.0,
in a case where there is a plurality of Ra's and Rc's in General Formula (2), the plurality of Ra's and Rc's may be the same as or different from each other respectively, and
in a case where there is a plurality of Rc's in General Formula (2), two Rc's may form a bond to represent an unsubstituted alkylene group having 2 to 20 carbon atoms, or three Rc's may form a bond with each other to represent a trivalent group obtained by removing any one hydrogen atom from an unsubstituted alkylene group having 2 to 20 carbon atoms;
wherein a condensation rate of the polyorganosilsesquioxane compound (c1) is equal to or higher than 50% and equal to or lower than 97%.