REMOVABLE ADHESIVE SHEET

• US 20110014463A1
• Filed: 03/25/2009
• Published: 01/20/2011
• Est. Priority Date: 03/27/2008
• Status: Abandoned Application

• Current Assignee: Lintec Corporation
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company), Lintec Corporation
• Inventors: Ono, Yoshitomo, Yaguchi, Shigeyuki
• Application Number:
  US12/934,309
• Publication Number:
  US 20110014463A1
• Time in Patent Office: Days
• US Class Current: 428/343
• CPC Class Codes: B60R 11/00 Arrangements for holding or mounting articles, not otherwise provided for
• CPC Class Codes: B60R 13/00 Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
• CPC Class Codes: B60R 2011/0003 inside the vehicle
• CPC Class Codes: B60R 2011/0021 Doors
• CPC Class Codes: B60R 2011/004 outside the vehicle
• CPC Class Codes: B60R 2011/0057 using magnetic means
• CPC Class Codes: C08K 3/08 Metals
• CPC Class Codes: C09J 123/00 Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
• CPC Class Codes: C09J 2301/408 additives as essential feature of the adhesive layer
• CPC Class Codes: C09J 2423/00 Presence of polyolefin
• CPC Class Codes: C09J 7/35 Heat-activated
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer

Abstract

The present invention provides a removable adhesive sheet, which comprises a mixture of a hot-melt removable adhesive and a ferromagnetic material. The removable adhesive sheet of the present invention can be held to the prescribed location by means of magnetic force in initial stage of the adhesion at room temperature to an article composed of a metal or the like, and further, can move easily and position easily to a correct location, and can be peeled off easily after sticking by heating.

Claims

1. A removable adhesive sheet comprising:

a mixture of a hot-melt removable adhesive and a ferromagnetic material.

2. The removable adhesive sheet as claimed in claim 1, wherein the mixture has a viscosity of 5 to 500 Pa·

s at 130°

C.

3. The removable adhesive sheet as claimed in claim 1, wherein the hot-melt removable adhesive is a polyolefin resin based hot-melt removable adhesive.

4. The removable adhesive sheet as claimed in claim 1, wherein a surface magnetic force is not less than 20 mT and a surface magnetic force, after heating at 150°

C. for 40 minutes, is less than 5 mT.

5. The removable adhesive sheet as claimed in claim 4, wherein the removable adhesive sheet is used for masking an article exhibiting ferromagnetism.

6. The removable adhesive sheet as claimed in claim 5, wherein the removable adhesive sheet comprises a masking tape for a slide rail of an automobile.

7. A removable adhesive sheet with a substrate which comprises the removable adhesive sheet as claimed in claim 1 and a substrate, wherein the removable adhesive sheet is laminated on at least one surface of the substrate.

8. The removable adhesive sheet as claimed in claim 2, wherein the hot-melt removable adhesive is a polyolefin resin based hot-melt removable adhesive.

9. The removable adhesive sheet as claimed in claim 2, wherein a surface magnetic force is not less than 20 mT and a surface magnetic force, after heating at 150°

C. for 40 minutes, is less than 5 mT.

10. The removable adhesive sheet as claimed in claim 3, wherein a surface magnetic force is not less than 20 mT and a surface magnetic force, after heating at 150°

C. for 40 minutes, is less than 5 mT.

11. The removable adhesive sheet as claimed in claim 8, wherein a surface magnetic force is not less than 20 mT and a surface magnetic force, after heating at 150°

C. for 40 minutes, is less than 5 mT.

12. The removable adhesive sheet as claimed in claim 9, wherein the removable adhesive sheet is used for masking an article exhibiting ferromagnetism.

13. The removable adhesive sheet as claimed in claim 10, wherein the removable adhesive sheet is used for masking an article exhibiting ferromagnetism.

14. The removable adhesive sheet as claimed in claim 11, wherein the removable adhesive sheet is used for masking an article exhibiting ferromagnetism.

15. The removable adhesive sheet as claimed in claim 12, wherein the removable adhesive sheet comprises a masking tape for a slide rail of an automobile.

16. A removable adhesive sheet with a substrate which comprises the removable adhesive sheet as claimed in claim 2 and a substrate, wherein the removable adhesive sheet is laminated on at least one surface of the substrate.

17. A removable adhesive sheet with a substrate which comprises the removable adhesive sheet as claimed in claim 3 and a substrate, wherein the removable adhesive sheet is laminated on at least one surface of the substrate.

18. A removable adhesive sheet with a substrate which comprises the removable adhesive sheet as claimed in claim 4 and a substrate, wherein the removable adhesive sheet is laminated on at least one surface of the substrate.

19. A removable adhesive sheet with a substrate which comprises the removable adhesive sheet as claimed in claim 5 and a substrate, wherein the removable adhesive sheet is laminated on at least one surface of the substrate.

20. A removable adhesive sheet with a substrate which comprises the removable adhesive sheet as claimed in claim 6 and a substrate, wherein the removable adhesive sheet is laminated on at least one surface of the substrate.