Painting roadway with composition of epoxy, urethane polyacrylate and polyamine

• US 6,485,787 B2
• Filed: 03/12/2001
• Issued: 11/26/2002
• Est. Priority Date: 02/11/1999
• Status: Expired due to Term

• Current Assignee: Reichhold LLC 2 (DIC Corporation)
• Original Assignee: Reichhold Incorporated
• Inventors: Tan, Ling, Danneman, Jeffrey H., Naderhoff, Bryan A.
• Primary Examiner(s): SELLERS, ROBERT E
• Application Number:
  US09/804,367
• Publication Number:
  US 20010009952A1
• Time in Patent Office: 624 Days
• Field of Search: 525/528, 525/454, 525/455, 525/452, 427/386
• US Class Current: 427/386
• CPC Class Codes: C08G 18/673 containing two or more acrylate or alkylacrylate ester groups
• CPC Class Codes: C08G 59/50 Amines
• CPC Class Codes: C08L 63/00 Compositions of epoxy resins; Compositions of derivatives of epoxy resins
• CPC Class Codes: C08L 75/04 Polyurethanes
• CPC Class Codes: C09D 175/16 having terminal carbon-to-carbon unsaturated bonds

Abstract

A polymeric composition exhibiting a fast cure rate composition comprises a polyfunctional urethane acrylate component; an epoxy component; and a polyfunctional amine component. The polyfunctional acrylate component and the polyfunctional amine component have sufficient functionalities such that the polyfunctional urethane acrylate component reacts with the polyfunctional component to form a secondary amine component. The secondary amine then reacts with the epoxy component such that a crosslinked polymeric material is formed.

Claims

1. A method for forming a paint marking on a roadway, said method comprising:

applying a traffic paint composition to a surface of the roadway, the traffic paint composition comprising a polymeric composition and a pigment, wherein the polymeric composition comprises a polyfunctional urethane acrylate component having more than four acrylate functionalities;

an epoxy component; and

a polyfunctional amine component;

wherein said polyfunctional acrylate component and said polyfunctional amine component have sufficient functionalities such that said polyfunctional urethane acrylate component reacts with said polyfunctional amine component to form a secondary amine component, and wherein said secondary amine reacts with said epoxy component such that a chemically crosslinked material is formed, said traffic paint composition having a no track time of less than about 10 minutes.

2. The method according to claim 1, wherein the polyfunctional urethane acrylate component is a reaction product of a hydroxyl functional acrylate and an aliphatic isocyanate.

3. The method according to claim 1, wherein the aliphatic polyamine contains at least two amine groups per molecule.

4. The method according to claim 1, wherein the aliphatic polyamine is selected from the group consisting of diethylene triamine, ethylene diamine, hexamethylene diamine, triethylene tetramine, tetraethylene pentamine, aminoethylpiperazine, and mixtures thereof.

5. The method according to claim 1, wherein the epoxy component is selected from an epoxide resin, an epoxy diluent, an epoxy flexibilizer, and mixtures thereof.

6. The method according to claim 1, wherein the epoxy component contains more than one 1,2-epoxy groups per molecule.

7. The method according to claim 1, wherein the composition further comprises an accelerator.

8. The method according to claim 5, wherein the epoxide resin is selected from the group consisting of resins based on diglycidyl ether of bisphenol-A, resins based on diglycidyl ether of bisphenol-F, diglycidyl ether of tetrabromobisphenol A, epoxy novolacs based on phenol-formaldehyde condensates, epoxy novolacs based on phenol-cresol condensates, epoxy novolacs based on phenol-dicyclopentadiene condensates, diglycidyl ether of hydrogenated bisphenol A, digylcidyl ether of resorcinol, tetraglycidyl ether of sorbitol, tetra glycidyl ether of methylene dianiline, and mixtures thereof.

9. The method according to claim 5, wherein the epoxy diluent is selected from the group consisting of glycidyl ethers of 2-ethylhexanol, glycidyl ethers of C₈-C₁₀ alcohol, glycidyl ethers of C₁₂-C₁₄ alcohol, glycidyl ethers of cresol, glycidyl ethers of p-tertiary butyl phenol, glycidyl ethers of nonyl phenol, glycidyl ethers of phenol, glycidyl ethers of neopentyl glycol, glycidyl ethers of 1,4- butanediol, glycidyl ethers of cyclohexane dimethanol, glycidyl ethers of propylene glycol, glycidyl ethers of dibromo-neopentyl glycol, glycidyl ethers of timethylol propane, glycidyl ethers of trimethylol ethane, glycidyl ethers of n-butanol, and mixtures thereof.

10. The method according to claim 5, wherein the epoxy flexibilizer is selected from the group consisting of rubber-modified bisphenol A epoxy resins, epoxidized castor oil based epoxies, epoxies which are modified with dimerized fatty acids, and mixtures thereof.