Marking tape, method of applying and method of manufacturing the marking tape

Patent metadata

Field	Value
Publication number	US-11110695-B2
Application number	US-201314404265-A
Country	US
Kind code	B2
Filing date	May 30, 2013
Priority date	May 30, 2012
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

A marking tape for application on pavement which comprises a core layer and an adhesive layer outside the core layer. The core layer is formed of a combination of a conforming layer of a thermoplastic material, a marking layer of a cross-linked material, and a fibrous layer. The conforming layer and the marking layer are contiguous and/or directly interconnected with each other.

First claim

The invention claimed is:

1. A marking tape for application on pavement, comprising:
a core layer and an adhesive layer;
wherein the adhesive layer is adapted for retaining the marking tape on the pavement; and
the core layer comprises a conforming layer of a thermoplastic material, a marking layer of a cross-linked material, and a fibrous layer; wherein the fibrous layer comprises a nonwoven layer and a netting layer, wherein the netting layer is separate from the nonwoven layer;
wherein the conforming layer and the marking layer are at least partially contiguous and/or directly interconnected with each other;
wherein the nonwoven layer is partially embedded in the conforming layer and in contact with the marking layer;
wherein the netting layer is imbedded within the conforming layer and is in contact with the adhesive layer,
wherein the netting layer and the nonwoven layers are in contact with each other;
wherein the conforming layer is at least partially arranged between the netting layer and the nonwoven layer.

2. The marking tape of claim 1 , wherein the marking tape is a temporary marking tape.

3. The marking tape of claim 1 , wherein the thermoplastic material is selected from the group consisting of a styrenic block copolymer, polyolefin, polyolefin blend, elastomeric alloy, thermoplastic polyurethane, thermoplastic copolyester, thermoplastic polyamide, or a combination thereof.

4. The marking tape of claim 1 , wherein the thermoplastic material comprises a mixture of two or more thermoplastic materials.

5. The marking tape of claim 1 , wherein the thermoplastic material comprises a mixture of two or more polyolefins.

6. The marking tape of claim 1 , wherein the marking tape has a thickness in the range 10 μm to 1000 μm.

7. The marking tape of claim 1 , wherein the marking tape, with the fibrous layer removed, has an E modulus in the range 10 to 140 N/mm 2 .

8. The marking tape of claim 1 , wherein the cross-linked material is selected from the group consisting of a polyurethane, epoxy, (meth)acrylate, acrylic, phenol or a combination thereof.

9. The marking tape of claim 1 , wherein the adhesive layer comprises a pressure sensitive adhesive selected from the group consisting of untackified natural rubber, tackified natural rubber, olefins, silicones, polyisoprene, polybutadiene, polyurethanes, styrene-isoprene-styrene, and styrene-butadiene-styrene block copolymers, styrene-ethylene-butylene-styrene, styrene-ethylene-propene-styrene, or tackified or untackified acrylic adhesives and copolymers thereof including acidic groups.

10. The marking tape of claim 1 , further comprising a multiplicity of reflective elements.

11. The marking tape of claim 1 , comprising a generally flat or a structured surface, and wherein the structured surface is formed by a multiplicity of protrusions protruding from the marking tape.

12. The marking tape of claim 1 , wherein the nonwoven layer protrudes from the conforming layer into the marking layer.

Assignees

• 3M Innovative Properties Co

Inventors

• Le Normand Jean
• Boehme Volker
• Jost Michael R
• Kolowrot Dirk
• Henning Sabine

Classifications

• B32B7/12 Primary

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B2037/243

  Coating · CPC title

• B32B37/12

  characterised by using adhesives · CPC title

• B32B37/10

  characterised by the pressing technique, e.g. using action of vacuum or fluid pressure · CPC title

• Y10T442/674

  Nonwoven fabric with a preformed polymeric film or sheet · CPC title