Free radical coating composition with improved surface cure properties

Patent metadata

Field	Value
Publication number	US-10179865-B2
Application number	US-201414327618-A
Country	US
Kind code	B2
Filing date	Jul 10, 2014
Priority date	Jul 11, 2013
Publication date	Jan 15, 2019
Grant date	Jan 15, 2019

Abstract

A crosslinking monomer for a peroxide cure composition is a dual functional monomer and has at least two allyl groups and at least one (meth)acrylate group. A composition comprises the crosslinking monomer and at least one (meth)acrylate monomer. A two-part peroxide composition comprises the crosslinking monomer, at least one (meth)acrylate monomer, and a peroxide initiator. The compositions, which may be wax-free or solvent-free or both, are useful as protective coatings or sealants for concrete and other substrates.

First claim

The invention claimed is:

1. A curable coating composition comprising a crosslinking monomer having a molecular weight of less than about 400 daltons, at least one (meth)acrylate monomer different from the crosslinking monomer, wherein said crosslinking monomer is a dual functional monomer comprising at least 2 allyl groups and at least 1 (meth)acrylate group, and a urethane (meth)acrylate oligomer, wherein said crosslinking monomer is prepared from a polyallyl glycidyl ether of a polyol selected from the group consisting of trimethylol propane, pentaerythritol(PET), ditrimethylol propane(diTMP), dipentaerythritol(diPET), the corresponding alkoxylated polyols, and mixtures thereof.

2. The composition of claim 1 , wherein said crosslinking monomer comprises at least 2 allyl groups and at least 2 (meth)acrylate groups.

3. The composition of claim 1 further comprising urethane (meth)acrylate oligomer.

4. The composition of claim 1 further comprising a vinyl ester.

5. The composition of claim 1 , wherein the composition does not comprise a solvent.

6. The composition of claim 1 , further comprising a metal complex drier.

7. The composition of claim 6 , wherein said metal complex drier is selected from the group consisting of cobalt naphthenate, cobalt octoate, vanadium naphthenate, vanadium octoate, manganese naphthenate and manganese octoate.

8. The composition of claim 1 , wherein said at least one (meth)acrylate monomer has a (meth)acrylate functionality greater than 2.

9. The composition of claim 1 , further comprising a tetra-allyl urethane oligomer.

10. The composition of claim 1 , wherein the composition does not comprise styrene.

11. The composition of claim 1 further comprising an additional monomer or oligomer.

12. The composition of claim 11 , wherein the additional monomer or oligomer is selected from the group consisting of a vinyl ester, a glycidyl ether acrylate oligomer, a diglycidyl epoxy acrylate oligomer, an epoxy acrylate oligomer, an aromatic urethane acrylate oligomer, an aliphatic urethane acrylate oligomer, a polyester acrylate oligomer, an acrylic acrylate oligomer, an allyl urethane oligomer, and mixtures thereof.

13. A curable sealant comprising the composition of claim 1 .

14. A curable coating composition comprising a crosslinking monomer having a molecular weight of less than about 400 daltons, and at least one (meth)acrylate monomer different from the crosslinking monomer, wherein said crosslinking monomer is a dual functional monomer comprising at least 2 allyl groups and at least 1 (meth)acrylate group, and a urethane (meth)acrylate oligomer, wherein the crosslinking monomer is diallyl trimethylolpropane ether (meth)acrylate.

15. A two-component free-radical curable composition comprising Part A and Part B, wherein Part A comprises a curable coating composition comprising a crosslinking monomer having a molecular weight of less than about 400 daltons, and at least one (meth)acrylate monomer different from the crosslinking monomer, wherein said crosslinking monomer is a dual functional monomer comprising at least 2 allyl groups and at least 1 (meth)acrylate group, and a urethane (meth)acrylate oligomer and Part B comprises an organic peroxide.

16. The two-component free-radical curable composition of claim 15 , wherein Part A or/and Part B further comprises a tetra-allyl urethane oligomer.

17. The two-component free-radical curable composition of claim 15 , wherein Part A further comprises a pigment.

Assignees

• Arkema France

Inventors

• Horgan James P
• Bailey Michael A
• Wlodyga Ronald R

Classifications

• C08F220/40

  Esters of unsaturated alcohols {, e.g. allyl (meth)acrylate} · CPC title

• C08F220/343

  in the form of urethane links · CPC title

• C09D4/00

  Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16} · CPC title

• C09D133/14 Primary

  of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen · CPC title

• C08F2220/343

  Chemistry & Metallurgy · mapped topic