Type of road markings for supporting the environment detection of vehicles

Patent metadata

Field	Value
Publication number	US-9701846-B2
Application number	US-201314422483-A
Country	US
Kind code	B2
Filing date	Nov 6, 2013
Priority date	Nov 28, 2012
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A radiation-reflecting road marking, comprising: metal particles having a diameter of between 0.5-2.5 mm, wherein the metal particles are particles comprising aluminum, magnesium, zinc or an alloy thereof. Also, a method for producing the radiation-reflecting road marking, where the radiation-reflecting road marking is a cold plastic, by mixing components of a two-part system, if necessary, to form a mixture, applying the mixture to a road surface, and adding the metal particles and optionally glass beads during or directly after an application of the cold plastic to the road surface.

First claim

The invention claimed is:

1. A radiation-reflecting road marking, comprising:
a matrix material; and
metal particles having a diameter of between 0.5-2.5 mm,
wherein the metal particles are spherical, oval, or rounded particles comprising a metal selected from the group consisting of aluminum, magnesium, zinc, and any alloy thereof, and
wherein the metal particles are in the form of solid or hollow metal particles consisting of the metal, the metal particles comprise a core of a different material coated with the metal, or the metal particles comprise a core of the metal coated with glass, poly(methyl methacrylate), or polycarbonate.

2. The radiation-reflecting road marking according to claim 1 , wherein the metal particles consist of the metal.

3. The radiation-reflecting road marking according to claim 1 , wherein the metal particles are spherical.

4. The radiation-reflecting road marking according to claim 1 , wherein the metal particles consists of aluminum.

5. The radiation-reflecting road marking according to claim 1 , wherein the radiation-reflecting road marking is a prefabricated adhesive tape.

6. The radiation-reflecting road marking according to claim 1 , wherein the radiation-reflecting road marking is a water-based paint.

7. The radiation-reflecting road marking according to claim 1 , further comprising:
glass beads on a surface of the radiation-reflecting road marking.

8. The radiation-reflecting road marking according to claim 1 , wherein the metal particles are situated on a surface of the radiation-reflecting road marking.

9. The radiation-reflecting road marking according to claim 1 , wherein the radiation-reflecting road marking reflects microwaves and/or infrared radiation.

10. The radiation-reflecting road marking according to claim 1 , wherein the metal particles are provided on a surface of the matrix material with an adhesion promoter and/or the matrix material comprises an adhesion promoter.

11. The radiation-reflecting road marking according claim 10 , wherein the adhesion promoter is at least one adhesion promoter selected from the group consisting of a silane, a hydroxyester, an aminoester, an urethane, an isocyanate and an acid copolymerized with a (meth)acrylate.

12. The radiation-reflecting road marking according claim 1 , wherein the radiation-reflecting road marking is a cold plastic.

13. The radiation-reflecting road marking according to claim 12 , wherein the cold plastic is produced from a two-part reactive resin in which a first component comprises 1.0 to 5.0 wt % of an initiator, and a second component comprises 0.5 to 5.0 wt % of an accelerator, and in that the two-part reactive resin comprises:
0.1 wt % to 18 wt % of a crosslinker,
2 wt % to 50 wt % of a monomer,
0 wt % to 12 wt % of an urethane (meth)acrylate,
0.5 wt % to 30 wt % of a prepolymer,
0 wt % to 15 wt % of core-shell particles,
7 wt % to 15 wt % of an inorganic pigment, and
30 wt % to 60 wt % of mineral fillers.

14. A method for producing the radiation-reflecting road marking according to claim 12 , the method comprising:
optionally mixing components of two-part system, thereby forming a mixture;
applying the mixture to a road surface; and
adding the metal particles and optionally glass beads during or directly after an application of the cold plastic to the road surface.

15. The radiation-reflecting road marking according to claim 13 , wherein the initiator is dilauroyl peroxide, dibenzoyl peroxide or both.

16. The radiation-reflecting road marking according to claim 13 , wherein the accelerator is a tertiary, aromatically substituted amine.

17. The radiation-reflecting road marking according to claim 13 , wherein the inorganic pigment is titanium oxide.

Assignees

• Protzmann Guido
• Kiwitt Joern
• Kiefer Dominik
• Schmitt Guenter
• Kaufmann Marita
• Olapoju Michael
• Evonik Roehm Gmbh

Inventors

• Protzmann Guido
• Kiwitt Joern
• Kiefer Dominik
• Schmitt Guenter
• Kaufmann Marita
• Olapoju Michael

Classifications

• Y10T428/2993

  Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.] · CPC title

• Y10T428/12028

  Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.] · CPC title

• E01C7/356

  with exclusively synthetic resin as a binder; Aggregate, fillers or other additives for application on or in the surface of toppings having exclusively synthetic resin as binder · CPC title

• Y10T428/2998

  including synthetic resin or polymer · CPC title

• E01F9/518

  formed in situ, e.g. by painting, by casting into the road surface or by deforming the road surface · CPC title