Composition for hard coat, dyed resin body with hard coat, and method for producing dyed resin body with hard coat

Patent metadata

Field	Value
Publication number	US-9951246-B2
Application number	US-201514849830-A
Country	US
Kind code	B2
Filing date	Sep 10, 2015
Priority date	Sep 12, 2014
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A composition for a hard coat according to an embodiment of the present disclosure includes: a trifunctional or more methacrylate monomer and/or acrylate monomer; and a mixed solvent that contains a first solvent including at least one of a glycol-based solvent and a cellosolve-based solvent, and a second solvent including lower alcohol.

First claim

What is claimed is:

1. A composition for a hard coat comprising:
a trifunctional or more methacrylate monomer and/or acrylate monomer; and
a mixed solvent that contains a first solvent including at least one of a glycol-based solvent and a cellosolve-based solvent, and a second solvent including lower alcohol,
wherein a content of the first solvent relative to the mixed solvent is 30% by weight or more and 80% by weight or less.

2. The composition for the hard coat according to claim 1 , wherein
the first solvent is propylene glycol monomethyl ether, and
the second solvent is isopropyl alcohol.

3. A dyed resin body with a hard coat, comprising:
a hard coat layer containing a cured product of the composition for the hard coat according to claim 1 ; and
a resin body containing a sublimable dye.

4. A dyed resin body with a hard coat, comprising:
a hard coat layer containing a cured product of the composition for the hard coat according to claim 2 ; and
a resin body containing a sublimable dye.

5. A method for producing the dyed resin body with the hard coat according to claim 3 , comprising:
heating a dye attached to a substrate facing a resin body in a non-contact manner, to sublimate the dye, and then depositing the sublimated dye onto the resin body;
fixing the dye by heating the resin body on which the dye is deposited;
applying the composition for the hard coat onto the resin body on which the dye is fixed; and
curing the composition for the hard coat by irradiating the applied composition for the hard coat with light.

6. The method for producing the dyed resin body with the hard coat according to claim 5 , further comprising
fixing the dye by heating with electromagnetic waves the resin body on which the dye is deposited.

7. The dyed resin body with the hard coat according to claim 3 , wherein the resin body is a lens.

8. The composition for the hard coat according to claim 1 , wherein
the lower alcohol is at least one selected from a group consisting of methanol, ethanol, isopropyl alcohol, ethylene glycol and glycerin.

9. The composition for the hard coat according to claim 1 , wherein the trifunctional or more methacrylate monomer and/or acrylate monomer is dissolved in the mixed solvent.

10. The composition for the hard coat according to claim 8 , wherein
the trifunctional or more methacrylate monomer and/or acrylate monomer is dissolved in the mixed solvent.

Assignees

• Nidek Kk

Inventors

• Abe Koji
• Tezuka Akira
• Inuzuka Minoru
• Ebi Hironori
• Tanaka Motoshi

Classifications

• C09D135/02 Primary

  Homopolymers or copolymers of esters (C09D135/06, C09D135/08 take precedence) · CPC title

• B05D3/067

  Curing or cross-linking the coating · CPC title

• C09D4/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} · CPC title

• C08F222/10

  Esters · CPC title