US 12,248,120 B2
Laminated body, method of manufacturing laminated body, antifogging film forming composition, antifogging film, and set of antifogging film forming compositions
Makoto Watanabe, Omuta (JP)
Assigned to MITSUI CHEMICALS, INC., Tokyo (JP)
Filed by MITSUI CHEMICALS, INC., Tokyo (JP)
Filed on Feb. 21, 2022, as Appl. No. 17/676,321.
Application 17/676,321 is a continuation in part of application No. PCT/JP2020/042406, filed on Nov. 13, 2020.
Claims priority of application No. 2019-207311 (JP), filed on Nov. 15, 2019; and application No. 2021-032004 (JP), filed on Mar. 1, 2021.
Prior Publication US 2022/0276410 A1, Sep. 1, 2022
Int. Cl. G02B 1/10 (2015.01); C03C 17/32 (2006.01); G02B 1/04 (2006.01)
CPC G02B 1/10 (2013.01) [C03C 17/326 (2013.01); G02B 1/041 (2013.01)] 18 Claims
 
1. A laminated body, comprising: a substrate; a storage layer (A); and a buffer layer (B) disposed in this order, wherein:
the storage layer (A) is formed of a cured product of a composition (A-1) containing: a polyfunctional monomer (a1) containing two or more epoxy groups; inorganic particles (a2); and a surfactant (a3),
the buffer layer (B) is formed of a cured product of a composition (B-1) containing: a polyfunctional monomer (b1) containing two or more epoxy groups; and inorganic particles (b2),
a mass content of the inorganic particles (a2) with respect to a total mass of the storage layer (A) is 30% by mass or more,
a mass content of the inorganic particles (b2) with respect to a total mass of the buffer layer (B) is 30% by mass or more,
the polyfunctional monomer (al) contains a polyfunctional monomer (a1-1) having a molecular weight per epoxy group in one molecule of 200 g/mol or more, and that contains a polyfunctional monomer (a1-2) having a molecular weight per epoxy group in one molecule of less than 200 g/mol, and
the polyfunctional monomer (b1) contains a polyfunctional monomer (b1-1) having a molecular weight per epoxy group in one molecule of 200 g/mol or more, and that contains a polyfunctional monomer (b1-2) having a molecular weight per epoxy group in one molecule of less than 200 g/mol.