EP-4737954-A1 - MULTILAYER BODY AND SPECTACLE LENS

EP4737954A1EP 4737954 A1EP4737954 A1EP 4737954A1EP-4737954-A1

Abstract

An object of the present disclosure is to provide a laminate that is excellent in scratch resistance and also in appearance characteristics. The laminate of the present disclosure is a laminate including a substrate, an antireflection layer, an intermediate layer, and a water-repellent layer in this order. The intermediate layer is a layer formed using an intermediate layer-forming composition, and the intermediate layer-forming composition contains: at least one compound X selected from the group consisting of a compound represented by formula (X1), a hydrolysate of the compound represented by the formula (X1), and a hydrolysis condensate of the compound represented by the formula (X1); and a compound Y which is a compound different from the compound X, has at least one of an amino group or an amine skeleton, and has a silicon atom.

Inventors

IGAMI, YUKA
WAKIYASU, HIDEYUKI
ISHIMURA, KEI

Assignees

Nikon-Essilor Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20240614

Claims (4)

A laminate comprising a substrate, an antireflection layer, an intermediate layer, and a water-repellent layer in this order, wherein the intermediate layer is a layer formed using an intermediate layer-forming composition, and the intermediate layer-forming composition contains: at least one compound X selected from the group consisting of a compound represented by formula (X1), a hydrolysate of the compound represented by the formula (X1), and a hydrolysis condensate of the compound represented by the formula (X1); and a compound Y which is a compound different from the compound X, has at least one of an amino group or an amine skeleton, and has a silicon atom, where R n1 represents an alkyl group having an amino group and optionally having -NH-, R x1 represents a hydroxyl group or a hydrolyzable group, R x2 represents a hydrocarbon group, and mx represents an integer of 1 to 3.
The laminate according to claim 1, wherein a content of the compound X in the intermediate layer-forming composition is 32.0 to 88.0 mass% with respect to a total content of the compound X and the compound Y.
The laminate according to claim 1 or 2, wherein the compound Y contains at least one selected from the group consisting of a compound represented by formula (Y1), a hydrolysate of the compound represented by the formula (Y1), and a hydrolysis condensate of the compound represented by the formula (Y1), where R y1 and R y3 each independently represent a hydroxyl group or a hydrolyzable group, R y2 and R y4 each independently represent a hydrocarbon group, ny1 and ny2 each independently represent an integer of 1 to 3, L y1 represents a divalent linking group having at least -NR L1 -, where the divalent linking group further optionally has a group selected from the group consisting of -NR L1 -, - C(R L2 )(R L3 )-, and -Si(R L4 )(R L5 )-, R L1 represents a hydrogen atom or an alkyl group, and R L2 to R L5 each independently represent a hydrogen atom, a fluorine atom, or an alkyl group optionally having a fluorine atom.
A spectacle lens comprising the laminate according to any one of claims 1 to 3, wherein the substrate of the laminate is a lens substrate.

Description

TECHNICAL FIELD The present disclosure relates to a laminate and a spectacle lens. BACKGROUND ART Patent Literature 1 discloses a hard coat film in which a hard coat layer (X), a primer layer (Y), and a surface layer (Z) are laminated in this order on at least one surface of a substrate, wherein the surface layer (Z) has a water contact angle of 110° or more. CITATION LIST PATENT LITERATURE Patent Literature 1: JP 2015-120253 A SUMMARY OF INVENTION The present disclosure relates to a laminate including a lens substrate, an antireflection layer, an intermediate layer, and a water-repellent layer in this order, wherein the intermediate layer is a layer formed using an intermediate layer-forming composition, and the intermediate layer-forming composition contains at least one compound X selected from the group consisting of a compound represented by formula (X1) described later, a hydrolysate of the compound represented by the formula (X1), and a hydrolysis condensate of the compound represented by the formula (X1), and a compound Y which is a compound different from the compound X, has at least one of an amino group or an amine skeleton, and has a silicon atom. DESCRIPTION OF EMBODIMENTS Hereinafter, a laminate of the present disclosure will be described in detail. The laminate of the present disclosure is excellent in scratch resistance and also in appearance characteristics. In the present description, "... to ..." means that numerical values described before and after "to" are included as a lower limit value and an upper limit value. In the present description, the "solid content" of a composition means a component that forms a layer formed using the composition, and when the composition contains a solvent (for example, an organic solvent, water, and the like), the solid content refers to all components excluding the solvent. A liquid component is also regarded as the solid content as long as it is a component that forms the layer formed using the composition. The bonding direction of a divalent group described in the present description is not limited unless otherwise specified. For example, when Y in a compound represented by the formula "X-Y-Z" is -COO-, Y may be -CO-O- or -O-CO-. The compound may be "X-CO-O-Z" or "X-O-CO-Z". [Laminate] The laminate includes a substrate, an antireflection layer, an intermediate layer, and a water-repellent layer in this order. The laminate may have the antireflection layer, the intermediate layer, the water-repellent layer, and the like on one surface of the substrate, or may have the antireflection layer, the intermediate layer, the water-repellent layer, and the like on each surface of the substrate. The intermediate layer is preferably disposed adjacent to the antireflection layer and the water-repellent layer. In other words, the laminate preferably includes the substrate, the antireflection layer, the intermediate layer disposed adjacent to the antireflection layer, and the water-repellent layer disposed adjacent to the intermediate layer in this order. <Substrate> The laminate includes the substrate. Examples of the substrate include a substrate composed of a material selected from an organic material and an inorganic material, and an organic material substrate is preferable. Examples of the organic material include an acrylic acid ester resin, a methacrylic acid ester resin, a thiourethane resin, an allyl resin, an episulfide resin, polycarbonate, a urethane resin, polyester, polystyrene, polyethersulfone, poly-4-methyl-pentene-1, and a diethylene glycol bisallyl carbonate resin (CR-39), and a thiourethane resin, an episulfide resin, or a diethylene glycol bisallyl carbonate resin is preferable. The thiourethane resin is a resin obtained by polymerizing a polyisocyanate compound and a polythiol compound. The polyisocyanate compound is preferably m-xylylene diisocyanate, a mixture of 2,5-bis(isocyanatomethyl)-bicyclo[2,2,1]heptane and 2,6-bis(isocyanatomethyl)-bicyclo[2,2,1]-heptane, isophorone diisocyanate, hexamethylene diisocyanate, or tolylene diisocyanate. The polythiol compound is preferably pentaerythritol tetrakis(3-mercaptopropionate), 1,2-bis[(2-mercaptoethyl)thio]-3-mercaptopropane, or a mixture of 5,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, 4,7-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane, and 4,8-dimercaptomethyl-1,11-dimercapto-3,6,9-trithiaundecane. The episulfide resin is a resin obtained by the ring-opening polymerization of a monomer having an episulfide group (epithio group) or a mixed monomer containing the monomer. The monomer having an episulfide group is preferably bis(2,3-epithiopropyl)sulfide or bis(2,3-epithiopropyl)disulfide. As the substrate, lens substrates such as an organic material lens substrate and an inorganic material lens substrate are also preferable. Examples of the lens substrates include a finish lens in which a convex surface and a concave surface are optically finished and molded according to a d