Hardcoat film, polarizing plate, liquid crystal display, and method for manufacturing hardcoat film
AssigneeFUJIFILM Corporation
InventorsKatsuyuki TAKADA, Keigo UEKI
Life of this patent
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Abstract
A hardcoat film including a support and a hardcoat layer, in which the support contains a resin as a main component, a film thickness of the hardcoat layer exceeds 20 μm, the hardcoat layer contains a structure derived from a compound which has one alicyclic epoxy group and one ethylenically unsaturated double bond group and has a molecular weight equal to or less than 300, and a structure derived from a compound which has 3 or more ethylenically unsaturated double bond groups, a radical polymerization initiator and a cationic polymerization initiator.
Claims15
A hardcoat film comprising:
- a support;
- and
- a hardcoat layer disposed on at least one surface of the support,
- wherein the support contains a resin as a main component,
- a film thickness of the hardcoat layer exceeds 20 μm,
- the hardcoat layer contains at least a structure derived from the following a), a structure derived from the following b), the following c), and the following d), and
- in a case where a total solid content of the hardcoat layer is regarded as being 100% by mass, the hardcoat layer contains the structure derived from the following a) in an amount of 15% to 70% by mass, the structure derived from the following b) in an amount of 25% to 80% by mass, the following c) in an amount of 0.1% to 10% by mass, and the following d) in an amount of 0.1% to 10% by mass.
- a) compound which has one alicyclic epoxy group and one ethylenically unsaturated double bond group in a molecule and has a molecular weight equal to or less than 300
- b) compound which has 3 or more ethylenically unsaturated double bond groups in a molecule
- c) radical polymerization initiator
- d) cationic polymerization initiator
A method for manufacturing a hardcoat film having a support and a hardcoat layer disposed on at least one surface of the support, comprising:
- a step of forming the hardcoat layer by curing a composition for forming a hardcoat layer containing at least the following a), the following b), the following c), and the following d) such that a film thickness of the hardcoat layer exceeds 20 μm.
- wherein the support contains a resin as a main component, and
- in a case where a total solid content of the composition for forming a hardcoat layer is regarded as being 100% by mass, the composition contains a) in an amount of 15% to 70% by mass, b) in an amount of 25% to 80% by mass, c) in an amount of 0.1% to 10% by mass, and d) in an amount of 0.1% to 10% by mass.
- a) compound which has one alicyclic epoxy group and one ethylenically unsaturated double bond group in a molecule and has a molecular weight equal to or less than 300
- b) compound which has 3 or more ethylenically unsaturated double bond groups in a molecule
- c) radical polymerization initiator
- d) cationic polymerization initiator not
Dependencies are inferred from the claim text.