COMPOSITION FOR FORMING COATING LAYER HAVING SELF-HEALING PROPERTY, COATING LAYER, AND FILM
First Claim
1. A composition for forming a coating layer having a self-healing property comprising:
- a poly(C2-4 alkylene glycol)-modified polyfunctional urethane (meth)acrylate-based binder;
a bifunctional or higher polyfunctional (meth)acrylate-based compound;
a UV initiator; and
a silica nanoparticle,wherein the binder has a trifunctional or higher urethane bond and each poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compound is bound to the urethane bond in the binder, andat least two poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compounds bound to each urethane bond include poly(C2-4 alkylene glycol) repeating units whose numbers of repetitions are different from each other.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a composition for forming a coating layer having a self-healing property which enables the provision of a film exhibiting further improved mechanical properties together with excellent self-healing properties by being applied to the exterior of various household appliances or display devices, etc., a coating layer and a film. The composition for forming a coating layer having a self-healing property comprises: a poly(C2-4 alkylene glycol)-modified polyfunctional urethane (meth)acrylate-based binder; a bifunctional or higher polyfunctional (meth)acrylate-based compound; a UV initiator; and a silica nanoparticle, wherein the binder has a trifunctional or higher urethane bond and each poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compound is bound to the urethane bond in the binder, and at least two poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compounds bound to each urethane bond include poly(C2-4 alkylene glycol) repeating units whose numbers of repetitions are different from each other.
6 Citations
24 Claims
-
1. A composition for forming a coating layer having a self-healing property comprising:
-
a poly(C2-4 alkylene glycol)-modified polyfunctional urethane (meth)acrylate-based binder; a bifunctional or higher polyfunctional (meth)acrylate-based compound; a UV initiator; and a silica nanoparticle, wherein the binder has a trifunctional or higher urethane bond and each poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compound is bound to the urethane bond in the binder, and at least two poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compounds bound to each urethane bond include poly(C2-4 alkylene glycol) repeating units whose numbers of repetitions are different from each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 12)
-
-
9. (canceled)
-
11. (canceled)
-
13. (canceled)
-
14. A coating layer having a self-healing property comprising a binder layer in which a poly(C2-4 alkylene glycol)-modified polyfunctional urethane (meth)acrylate-based binder and a (meth)acrylate group of bifunctional or higher polyfunctional (meth)acrylate-based compound are bound to each other to form a cross-linked structure;
- and
a silica nanoparticle dispersed in the cross-linked structure of the binder layer, wherein the binder layer has a cross-linking density of 5 mol/kg to 10 mol/kg. - View Dependent Claims (15, 16, 17, 18, 20, 21, 22, 23, 24)
- and
-
19. (canceled)
Specification