Active energy ray-curable composition, aqueous emulsion composition, laminate, and coating agent composition
An active energy ray-curable composition that is of a forced emulsification type, has a high non-volatile content, has excellent storage stability at room temperature and high temperature, and has excellent freeze-thaw stability, in which a coating film to be coated on a substrate has excellent adhesiveness and water resistance; an aqueous emulsion composition; a laminate; and a coating agent composition are provided. In an active energy ray-curable composition containing two or more kinds of surfactants, at least one kind of the surfactants is a surfactant (B1) having two or more reactive groups. Further, the active energy ray-curable composition is used in an aqueous emulsion composition or a coating agent composition.
1 . An active energy ray-curable composition, comprising:
a first surfactant (B1) comprising a first reactive group and a second reactive group; and
a second surfactant (B2) of formula (1), having a single reactive group:
wherein
X is a functional group comprising a double bond,
Y1 and Y2 are alkylene groups, Y1 and Y2 being different from each other,
Z is a counterion,
m is an integer of 1 or more, and
n is an integer of 0 or more.
2 . The active energy ray-curable composition of claim 1 , comprising the first surfactant (B1) in 50 weight % or more, with respect to a total surfactant mass.
3 . The active energy ray-curable composition of claim 1 , wherein the first surfactant (B1) comprises a polyoxyalkylene chain in a structure of the first surfactant (B1).
4 . The active energy ray-curable composition of claim 1 , wherein the first surfactant (B1) is a urethane (meth)acrylate.
5 . The active energy ray-curable composition of claim 1 , further comprising:
a photopolymerizable compound (A).
6 . The active energy ray-curable composition of claim 5 , wherein the photopolymerizable compound (A) comprises a (meth)acrylate monomer (A1).
7 . The active energy ray-curable composition of claim 5 , wherein the photopolymerizable compound (A) comprises a urethane (meth)acrylate (A2) different from the first surfactant (B1).
8 . The active energy ray-curable composition of claim 5 comprising the photopolymerizable compound (A) in a range of from 40 to 99 weight %, with respect to 100 weight % of a total of the photopolymerizable compound (A) and the surfactants.
9 . The active energy ray-curable composition of claim 1 , further comprising:
a photopolymerization initiator (C).
10 . The active energy ray-curable composition of claim 1 , further comprising:
water.
11 . An aqueous emulsion, comprising:
the active energy ray-curable composition of claim 1 .
12 . A coating agent composition, comprising:
the active energy ray-curable composition of claim 1 .
13 . A laminate, comprising:
a layer formed of the active energy ray-curable composition of claim 1 .
14 . An aqueous emulsion, comprising:
the active energy ray-curable composition of claim 1 ,
wherein a pencil hardness of a coating film formed, measured with a load of 1 kg in accordance according to JIS K 5600-5-4, is 2 H or more,
wherein the pencil hardness is measured by applying the aqueous emulsion onto a surface of an easy-adhesive polyethylene terephthalate film having a thickness of 125 μm with a bar coater, drying at 100° C. for 2 minutes, and curing by irradiating the aqueous emulsion with ultraviolet rays using a high-pressure mercury lamp so that an accumulated amount of light is 450 mJ/cm2, to form a coating film having a film thickness of 10 μm.
15 . The active energy ray-curable composition of claim 1 , further comprising:
a photopolymerizable compound (A) comprising a (meth)acrylate monomer (A1) or a urethane (meth)acrylate (A2) different from the first surfactant (B1);
a photopolymerization initiator (C); and
water,
wherein the photopolymerizable compound (A) is present in a range of from 40 to 99 weight %, with respect to 100 weight % of a total of the photopolymerizable compound (A) and the surfactants.
16 . The active energy ray-curable composition of claim 6 , comprising the photopolymerizable compound (A) in a range of from 40 to 99 weight %, with respect to 100 weight % of a total of the photopolymerizable compound (A) and the surfactants.
17 . The active energy ray-curable composition of claim 7 , comprising the photopolymerizable compound (A) in a range of from 40 to 99 weight %, with respect to 100 weight % of a total of the photopolymerizable compound (A) and the surfactants.
18 . The active energy ray-curable composition of claim 1 , comprising, relative to a total weight of the active energy ray-curable composition,
the first surfactant (B1) in a range of from 0.9 to 59.9 weight %, and
the second surfactant (B2) in a range of from 0.1 to 20 weight %.
19 . The active energy ray-curable composition of claim 1 , comprising, relative to a total weight of the active energy ray-curable composition,
the first surfactant (B1) in a range of from 4.0 to 49 weight %, and
the second surfactant (B2) in a range of from 1.0 to 10 weight %.
20 . The composition of claim 15 , comprising, relative to a total weight of the active energy ray-curable composition,
the first surfactant (B1) in a range of from 8.5 to 38.5 weight %, and
the second surfactant (B2) in a range of from 1.5 to 7.0 weight %.