Binding agent for producing road markings ready quickly for traffic

Patent metadata

Field	Value
Publication number	US-9023971-B2
Application number	US-201013384063-A
Country	US
Kind code	B2
Filing date	Jul 1, 2010
Priority date	Jul 16, 2009
Publication date	May 5, 2015
Grant date	May 5, 2015

Abstract

The present invention comprises a novel formulation for marking travel lanes, such as roads, which following the application can be reopened for traffic after a waiting period that is shortened as compared to the prior art.

First claim

What is claimed is:

1. A cold plastic, comprising:
from 15% to 45% by weight of a reactive resin;
from 1% to 5% by weight of a mixture comprising an initiator;
from 7% to 15% by weight of an inorganic pigment; and
from 50% to 60% by weight of a mineral filler, said weight percentages are relative to the total weight of the cold plastic,

wherein
said reactive resin, comprises, relative to the total weight of the reactive resin:
from 20% to 30% by weight of at least one crosslinking agent selected from the group consisting of allyl (meth)acrylate, 1,4-butanediol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, and trimethylolpropane tri(meth)acrylate;
from 30% to 40% by weight of a monomer component comprising at least one monomer selected from the group consisting of an alkyl (meth)acrylate of an alcohol having from 1 to 40 carbon atoms, an aryl (meth)acrylate, a mono (meth)acrylate of an ether having from 5 to 80 carbons, an α,β-unsaturated monocarboxylic acid, an α,β-unsaturated dicarboxylic acid, a hydroxyalkyl (meth)acrylate, a (meth)acrylamide, an amino alkyl (meth)acrylate, glycidyl (meth)acrylate, and a silyl-functional (meth)acrylate;
from 10% to 20% by weight of a urethane (meth)acrylate, wherein the urethane (meth)acryalate comprises at least two (meth)acrylate functions linked together with a urethane group;
from 15% to 25% by weight of a prepolymer comprising at least one selected from the group consisting of a polyester and a poly(meth)acrylate;
from above 0% to 5% by weight of an accelerator, which is a tertiary, aromatically substituted amine; and
optionally, an auxiliary, wherein
the cold plastic cures within 5 minutes of application thereof to a surface of a trafficway marking.

2. The cold plastic of claim 1 , wherein the reactive resin is halogen-free,
the crosslinking agent is at least one compound selected from the group consisting of 1,4-butanediol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, and triethylene glycol di(meth)acrylate,
the monomer component comprises at least one selected from the group consisting of an alkyl (meth)acrylate of an alcohol having from 1 to 40 carbon atoms, an aryl (meth)acrylate, a mono (meth)acrylate of an ether having from 5 to 80 carbons, and an unsaturated monomer that is copolymerizable with (meth)acrylate, and
the prepolymer component comprises a poly(meth)acrylate.

3. The cold plastic of claim 1 , wherein the initiator comprises a peroxide.

4. The cold plastic of claim 3 , wherein the peroxide is at least one selected from the group consisting of a dilauroyl peroxide and a dibenzoyl peroxide.

5. The cold plastic of claim 3 , wherein the peroxide is comprised in the reactive resin.

6. The cold plastic of claim 1 , wherein the components are mixed prior to or during an application to a trafficway surface.

7. A method of producing a trafficway marking, the method comprising:
applying the cold plastic of claim 1 to a trafficway surface, to obtain the trafficway marking,
wherein, less than 5 minutes after the applying, the trafficway marking can withstand the passage of traffic.

8. The method of claim 7 , further comprising, prior to, during, or after the applying:
adding glass beads to the cold plastic.

9. The cold plastic of claim 1 , wherein the inorganic pigment comprises titanium dioxide.

10. The cold plastic of claim 1 , wherein
the cold plastic cures within 2 minutes of application thereof to a surface of a trafficway marking.

11. The cold plastic according to claim 2 , comprising:
from 15% to 45% by weight of the reactive resin;
from 1% to 5% by weight of a mixture comprising an initiator selected from the group consisting of a peroxide compound, an azo compound, and a combination thereof;
from 7% to 15% by weight of an inorganic pigment; and
from 50% to 60% by weight of a mineral filler,
wherein the accelerator is present in an amount of from above 0% to 5% by weight of and is a tertiary, aromatically substituted amine.

12. The cold plastic of claim 11 , wherein the initiator comprises a peroxide.

13. The cold plastic of claim 12 , wherein the peroxide is at least one selected from the group consisting of a dilauroyl peroxide and a dibenzoyl peroxide.

14. The cold plastic of claim 12 , wherein the peroxide is comprised in the reactive resin.

15. The cold plastic of claim 11 , wherein the components are mixed prior to or during an application to a trafficway surface.

16. The cold plastic of claim 11 , wherein traffic can resume passage over a trafficway marking comprising the cold plastic 5 minutes after application to a trafficway surface.

17. The cold plastic of claim 11 , wherein the inorganic pigment comprises titanium dioxide.

18. The cold plastic of claim 1 , which comprises from 20% to 30% by weight of at least two crosslinking agents selected from the group consisting of allyl (meth)acrylate, 1,4-butanediol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, and trimethylolpropane tri(meth)acrylate.

19. The cold plastic of claim 1 , which comprises from 20% to 30% by weight of a mixture of 1,4-butanediol dimethacrylate and triethylene glycol dimethacrylate.

20. The cold plastic of claim 1 , wherein the tertiary, aromatically substituted amine is selected from the group consisting of N,N-dimethyl-p-toluidine, N,N-bis(2-hydroxyethyl)-p-toluidine, N,N-bis(2-hydroxypropyl)-p-toluidine, and a combination thereof.

21. The cold plastic of claim 2 , wherein the tertiary, aromatically substituted amine is selected from the group consisting of N,N-dimethyl-p-toluidine, N,N-bis(2-hydroxyethyl)-p-toluidine, N,N-bis(2-hydroxypropyl)-p-toluidine, and a combination thereof.

22. The cold plastic of claim 1 , which is in uncured form.

23. The cold plastic of claim 1 , wherein said urethane (meth)acrylate comprises a urethane methacrylate comprising units of a polyol, hydroxyethyl methacrylate, 2,6-di-tert-butyl-4-methylphenol, isophorone diisocyanate, and 2-tert-butyl-4,6-dimethylphenol, wherein the urethane methacrylate comprising said units is present in the reactive resin in at least the minimum amount of 10%.

Assignees

• Neugebauer Peter
• Heeb Heike
• Kizewski Ingrid
• Evonik Roehm Gmbh

Inventors

• Neugebauer Peter
• Heeb Heike
• Kizewski Ingrid

Classifications

• C08K2003/2241

  Titanium dioxide · CPC title

• C09D175/16 Primary

  having terminal carbon-to-carbon unsaturated bonds · CPC title

• C08K2003/265

  Calcium, strontium or barium carbonate · CPC title

• C08G18/755

  and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate · CPC title

• C08K3/26

  Carbonates; Bicarbonates · CPC title