Composition for hard coat, article having hard coat layer and method for producing the article
The present invention provides a composition for hard coat capable of forming a hard coat layer having the improved anti-staining property, anti-staining durability, scratch resistance, abrasion resistance, antistatic property and the like. A composition for hard coat comprising: an active energy ray-curable silicone-acrylic copolymer (A); an active energy ray-curable polyfunctional compound (B); and an electrically conductive material (C), wherein the active energy ray-curable silicone-acrylic copolymer (A) contains: a polysiloxane block (a-1), an acrylic block (a-2) containing an active energy ray-curable double bond group, and a fluoroalkyl group-containing acrylic block (a-3).
1. A composition for hard coat comprising:
0.1 to 50% by weight of an active energy ray-curable silicone-acrylic copolymer (A);
50 to 99.8% by weight of an active energy ray-curable polyfunctional compound (B); and
0.1 to 60% by weight of an electrically conductive material (C),
wherein the active energy ray-curable silicone-acrylic copolymer (A) contains:
a polysiloxane block (a-1) represented by the following formula (I):
wherein R 1 s and R 2 s are the same or different and each represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a nitrile group; R 3 s are the same or different and each represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R 4 s are the same or different and each represents a hydrogen atom, a halogen atom, a substituted or nonsubstituted alkyl group having 1 to 6 carbon atoms or a phenyl group having 6 to 12 carbon atoms; p and q are the same or different and each represents an integer of 0 to 6; and m represents an integer of 0 to 600,
an acrylic block (a-2) containing an active energy ray-curable double bond group, and
a fluoroalkyl group-containing acrylic block (a-3), and
wherein the percentages by weight of the components (A) to (C) are all based on the weight of solid content in the composition, and the total weight of solid contents of the individual components is defined as 100% by weight.
2. The composition for hard coat according to claim 1 , further comprising: a photopolymerization initiator (D).
3. The composition for hard coat according to claim 1 , wherein the active energy ray-curable silicone-acrylic copolymer (A) is composed of:
0.1 to 40% by weight of the polysiloxane block (a-1);
5 to 94.8% by weight of the acrylic block (a-2) containing active energy ray-curable double bond group; and
4.9 to 49.9% by weight of the fluoroalkyl group-containing acrylic block (a-3).
4. The composition for hard coat according to claim 1 , wherein the electrically conductive material (C) is metal oxide fine particles containing at least one element selected from the group consisting of antimony, indium and tin.