Cleanly removable tapes and methods for the manufacture thereof

• US 20050142359A1
• Filed: 03/03/2005
• Published: 06/30/2005
• Est. Priority Date: 04/08/2002
• Status: Abandoned Application

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Zhou, Zhiming, Kobe, James J., Narum, Timothy N., Pereyra, Rodger J.
• Application Number:
  US11/071,088
• Publication Number:
  US 20050142359A1
• Time in Patent Office: Days
• US Class Current: 428/343
• CPC Class Codes: C09J 2301/124 the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
• CPC Class Codes: C09J 2301/308 the adhesive tape or sheet losing adhesive strength when being stretched, e.g. stretch adhesive
• CPC Class Codes: C09J 7/22 Plastics; Metallised plastics
• CPC Class Codes: C09J 7/38 Pressure-sensitive adhesives [PSA]
• CPC Class Codes: C09J 9/00 Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks C09J7/00 takes precedence
• CPC Class Codes: Y10S 428/92 Fire or heat protection feature
• CPC Class Codes: Y10S 428/921 Fire or flameproofing
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2809 including irradiated or wave energy treated component
• CPC Class Codes: Y10T 428/2813 Heat or solvent activated or sealable
• CPC Class Codes: Y10T 428/2848 Three or more layers
• CPC Class Codes: Y10T 428/2891 including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof

Abstract

The present invention provides a fire retardant, multi-layer article, comprising: a first adhesive layer comprising a pressure sensitive adhesive; a core layer having an outer surface, the first adhesive layer adhered to at least a portion of the outer surface; a fire retardant disposed in at least one of the first adhesive layer or the core layer, the fire retardant comprising a brominated phosphate and being essentially free of antimony fire retardants and polybrominated biphenyls; and the tape being cleanly removable.

Claims

1. A fire retardant, multi-layer article, comprising:

a first adhesive layer comprising a pressure sensitive adhesive;

a core layer having an outer surface, the first adhesive layer adhered to at least a portion of the outer surface;

a fire retardant disposed in at least one of the first adhesive layer or the core layer, the fire retardant comprising a brominated phosphate and being essentially free of antimony fire retardants and polybrominated biphenyls; and

the tape being cleanly removable.

2. The article of claim 1 wherein the fire retardant is disposed in the first adhesive layer and the core layer.

3. The article of claim 1 wherein the fire retardant further comprises an intumescent fire retardant.

4. The article of claim 1 wherein the core layer comprises an adhesive.

5. The article of claim 4 wherein the adhesive comprises a pressure sensitive adhesive.

6. The article of claim 1 wherein the core layer comprises a substrate.

7. The article of claim 1 wherein the brominated phosphate is tris(tribromoneopentyl)phosphate.

8. The article of claim 1 further comprising a second adhesive layer, wherein the outer surface comprises a first major surface and a second major surface, the first adhesive layer being adhered to the first major surface, and the second adhesive layer being adhered to the second major surface.

9. The article of claim 8 wherein the first adhesive layer and the second adhesive layer have differentiated adhesion.

10. The article of claim 1 wherein the article is selected from the group consisting of a multi-layer tape, a multi-layer sheet, adhesive transfer tape, single-sided tape, double-sided tape, and substrate onto which the first adhesive layer has been directly applied.

11. The article of claim 1 wherein the article is a multi-layer tape and wherein the multi-layer tape has been exposed to radiation from an electron beam source to crosslink the core and/or to crosslink the first adhesive layer.