Disclosed is a primer composition for coating having excellent adhesion properties to a substrate and comprising a polyolefin resin or acrylic resin, without the use of a chlorine-containing compound, which primer composition essentially comprises a polymer (A) having at least a unit of a (meth)acry
Disclosed is a primer composition for coating having excellent adhesion properties to a substrate and comprising a polyolefin resin or acrylic resin, without the use of a chlorine-containing compound, which primer composition essentially comprises a polymer (A) having at least a unit of a (meth)acrylic ester monomer (a) in which acryloyloxy group or methacryloyloxy group is bonded to secondary carbon atom or tertiary carbon atom.
대표청구항▼
The invention claimed is: 1. A method of coating a substrate, comprising: applying a primer composition to a polyolefin resin substrate; wherein the primer composition comprises a polymer (A) having a unit of a (meth)acrylic ester monomer (a) in which acryloyloxy group or methacryloyloxy group is b
The invention claimed is: 1. A method of coating a substrate, comprising: applying a primer composition to a polyolefin resin substrate; wherein the primer composition comprises a polymer (A) having a unit of a (meth)acrylic ester monomer (a) in which acryloyloxy group or methacryloyloxy group is bonded to secondary carbon atom or tertiary carbon atom and a unit of monomer (b), wherein the (meth)acrylic ester monomer (a) is at least one selected from the group consisting of 4-t-butylcyclohexyl acrylate, tricyclodecanyl acrylate, 3,3,5-trimethylcyclohexyl acrylate, and t-butylmethacrylate; and the monomer (b) is at least one selected from the group consisting of (meth)acrylic esters, monomers having hydroxyl group in a molecule, methacrylic acid and styrene, and the content of the unit of monomer (a) in the polymer (A) is no less than 80% by mass and the content of the unit of the monomer (b) in the polymer (A) is no more than 20% by mass. 2. The method of claim 1, wherein the primer composition further comprises a polymer (B) that is different from the polymer (A). 3. The method of claim 2, wherein the polymer (B) is a polyolefin resin. 4. The method of claim 1, wherein the primer composition is applied to a substrate that consists of a polyolefin resin. 5. The method of claim 1, wherein the primer composition is applied to a polyolefin resin molded product. 6. The method of claim 1, wherein the primer composition does not contain any compound having a chlorine atom. 7. The method of claim 5, further comprising: after the applying, drying the primer composition applied to the polyolefin molded product. 8. The method of claim 1, wherein the primer composition is applied to the polyolefin resin substrate without surface treating before the applying. 9. The method of claim 1, wherein the monomer (a) is 4-t-butylcyclohexyl acrylate and the monomer (b) is at least one selected from the group consisting of methacrylate, styrene, dodecyl methacrylate, and butylacrylate. 10. The method of claim 9, wherein the primer composition applied to the polyolefin resin substrate has an adhesive strength of 392 kPa or greater. 11. The method of claim 9, wherein the primer composition applied to polyolefin resin substrate has an adhesive strength of 686 kPa or greater. 12. The method of claim 9, wherein the primer composition applied to the polyolefin resin substrate has an adhesive strength of 490 kPa or greater. 13. The method of claim 9, wherein the primer composition applied to the polyolefin resin substrate has an adhesive strength of 882 kPa or greater. 14. The method of claim 1, wherein the primer composition applied to the polyolefin resin substrate has an adhesive strength of from 392 to 882 kPa. 15. The method of claim 1, wherein the monomer (b) is at least one selected from the group consisting of a (meth)acrylic ester, a (meth)acrylic ester having a hydroxyl group, methacrylic acid and styrene. 16. The method of claim 1, wherein the monomer (b) is at least one (meth)acrylic ester having a hydroxyl group selected from the group consisting of 2-hydroxyethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate, 3-hydroxypropyl(meth)acrylate, 2-hydroxybutyl(meth)acrylate, 3-hydroxybutyl(meth)acrylate, 4-hydroxybutyl(meth)acrylate, 3-chloro-2-hydroxypropyl(meth)acrylate, polyethylene glycol(meth)acrylate, polypropylene glycol(meth)acrylate and caprolactone adducts thereof. 17. The method of claim 1, wherein the monomer (b) is at least one selected from the group consisting of a (meth)acrylic ester, a (meth)acrylic acid and a styrene.
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이 특허에 인용된 특허 (4)
Johnson Gilbert C. (Lino Lakes MN), Acryloyloxy and methacryloyloxy group-containing condensation polymers.
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