Type of road markings for supporting the environment detection of vehicles

• US 9,701,846 B2
• Filed: 11/06/2013
• Issued: 07/11/2017
• Est. Priority Date: 11/28/2012
• Status: Active Grant

• Current Assignee: ROHM Co., Ltd.
• Original Assignee: Evonik Rã¶Hm GmbH (Rag-Stiftung)
• Inventors: Protzmann, Guido, Kiwitt, Joern, Kiefer, Dominik, Olapoju, Michael, Schmitt, Guenter, Kaufmann, Marita
• Primary Examiner(s): Addie, Raymond W
• Application Number:
  US14/422,483
• Publication Number:
  US 20150247297A1
• Time in Patent Office: 1,343 Days
• Field of Search: 404 12- 16, 404 94, 404 75
• CPC Class Codes: C09D 5/004 Reflecting paints; Signal paints
• CPC Class Codes: E01C 11/00 Details of pavings E01C1/005, E01C5/003, E01C5/005, E01C7/145, E01C7/185, E01C7/325 take precedence
• CPC Class Codes: E01C 7/356 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 Class Codes: E01C 9/001 Paving elements formed in situ; Permanent shutterings therefor removable shutterings E01C19/502; moulding machines therefor E01C19/508; Inlays or reinforcements which divide the cast material in a great number of individual units reinforcement girders which do not break the cohesion of the covering material E01C11/16, E01C11/185
• CPC Class Codes: E01F 9/30 Arrangements interacting with transmitters or receivers otherwise than by visible means, e.g. using radar reflectors or radio transmitters E01F11/00 takes precedence
• CPC Class Codes: E01F 9/506 characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
• CPC Class Codes: E01F 9/518 formed in situ, e.g. by painting, by casting into the road surface or by deforming the road surface
• CPC Class Codes: E01F 9/524 Reflecting elements specially adapted for incorporation in or application to road surface markings
• CPC Class Codes: Y10T 428/12014 having metal particles
• CPC Class Codes: Y10T 428/12028 Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
• CPC Class Codes: Y10T 428/2993 Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
• CPC Class Codes: Y10T 428/2998 including synthetic resin or polymer

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.

Claims

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.