Composition, coating, film, and base material
A composition may contain a wide variety of particles with good dispersibility, the composition being able to make both rigidity and elongation at sufficient levels compatible with each other even under a low humidity. A coating and a film may each be formed of such a composition, and a base material having the foregoing coating or film. Specifically, the composition may contain an ethylene-vinyl alcohol copolymer (A) having the content of an ethylene unit of 0.5 to 19 mol % relative to all structural units and a particle (B), wherein the content of the particle (B) is 1 part by mass or more and less than 100 parts by mass based on 100 parts by mass of the ethylene-vinyl alcohol copolymer (A).
1 . A composition, comprising:
water;
an ethylene-vinyl alcohol copolymer (A) having a content of an ethylene unit of 0.5 to 19 mol. % relative to all structural units; and
a particle (B) comprising a polymer particle (B X ),
wherein the particle (B) is present in the composition in a range of from 1 to less than 100 parts by mass, based on 100 parts by mass of the ethylene-vinyl alcohol copolymer (A),
wherein the particle (B) has an average particle diameter in a range of from 10 to 500 nm,
wherein the particle (B) does not include a polyvinyl alcohol-based polymer,
wherein the composition is an aqueous emulsion, and
wherein the composition comprises solid components in a range of from 1 to 30% by mass.
2 . The composition of claim 1 , wherein the particle (B) consists of the polymer particle (B X ).
3 . The composition of claim 1 , wherein the polymer particle (B x ) comprises a (meth)acrylic acid ester-based polymer particle, a conjugated diene-based polymer particle, a styrene-based polymer particle, a styrene/conjugated diene-based copolymer particle, a urethane-based polymer particle, a vinyl acetate-based polymer particle, an ester-based polymer particle, an amide-based polymer particle, an imide-based polymer particle, a carbonate-based polymer particle, an allylate-based polymer particle, a sulfone-based polymer particle, and/or a phenoxy-based polymer particle.
4 . The composition of claim 1 , wherein the polymer particle (B x ) comprises a (meth)acrylic acid ester-based single-layer type polymer particle and/or a (meth)acrylic acid ester-based core-shell type polymer particle.
5 . The composition of claim 1 , wherein the polymer particle (B x ) comprises a dispersant comprising an ionic group.
6 . The composition of claim 5 , wherein the ionic group comprises an anionic group.
7 . The composition of claim 5 , wherein the ionic group comprises a salt of an anionic group.
8 . The composition of claim 1 , which is an application suitable for an adhesive, a fiber processing agent, a binder, a coating agent, ink, or a paint.
9 . The composition of claim 1 , wherein the water is present in the composition in a mass ratio in a range of from 2 to 5.26-fold, relative to a mass of all monomers used in the polymer particle (B X ).
10 . The composition of claim 1 , wherein the particle (B) further comprises an inorganic particle (B Y ).
11 . The composition of claim 1 , comprising no elastomer polymers.
12 . The composition of claim 1 , comprising no polymers besides the ethylene-vinyl alcohol copolymer (A), the particle (B), and, optionally, polymers selected from the group consisting of an ionomer, polyester, polystyrene, polyamide, polyolefin, polyvinyl chloride, polycarbonate, acrylic, ethylene-acrylic acid copolymer, ethylene-acrylic acid ester copolymer, ethylene-methacrylic acid copolymer, ethylene-methacrylic acid ester copolymer, ethylene-vinyl acetate-based copolymer, polyvinylidene chloride, vinyl ester, chlorinated polyolefin, and a mixture thereof.
13 . The composition of claim 1 , comprising the water, the ethylene-vinyl alcohol copolymer (A), the particle (B), and, optionally, a further component in no more than 5% by mass.
14 . A coating, comprising, in dried form:
the composition of claim 1 .
15 . A base material, comprising, in dried form:
the coating of claim 14 .
16 . A film, comprising, in dried form;
the composition of claim 1 .
17 . The film of claim 16 , having a thickness in a range of from 40 to 60 μm.
18 . A composition, comprising:
an ethylene-vinyl alcohol copolymer (A) comprising, in polymerized form, ethylene in a range of from 0.5 to 19 mol. %, relative to all polymerized monomer units; and
a particle (B) comprising a polymer particle (B X ), the polymer particle (B X ) being a single-layer polymer particle, and
wherein the particle (B) is present in the composition in a range of from 1 to less than 100 parts by mass, based on 100 parts by mass of the ethylene-vinyl alcohol copolymer (A),
wherein the particle (B) has an average particle diameter in a range of from 10 to 500 nm,
wherein the particle (B) does not include a polyvinyl alcohol-based polymer,
wherein the composition is an aqueous emulsion, and
wherein the composition comprises solid components in a range of from 1 to 30% by mass.
19 . The composition of claim 18 , further comprising:
water in a mass ratio range of from 2 to 5.26-fold, relative to a mass of all monomers used in the polymer particle (B X ).
20 . A composition, comprising:
water;
an ethylene-vinyl alcohol copolymer (A) having a content of an ethylene unit of 0.5 to 19 mol. % relative to all structural units; and
a particle (B) comprising a polymer particle (B X ),
wherein the particle (B) is present in the composition in a range of from 1 to less than 100 parts by mass, based on 100 parts by mass of the ethylene-vinyl alcohol copolymer (A),
wherein the particle (B) has an average particle diameter in a range of from 10 to 500 nm,
wherein the particle (B) does not include a polyvinyl alcohol-based polymer,
wherein the composition is an aqueous dispersion, and
wherein the composition comprises solid components in a range of from 1 to 30% by mass.