Double-sided pressure-sensitive adhesive tape and method for attaching the same, and release liner

• US 20100224312A1
• Filed: 03/02/2010
• Published: 09/09/2010
• Est. Priority Date: 03/06/2009
• Status: Abandoned Application

• Current Assignee: Nitto Denko Corporation
• Original Assignee: Nitto Denko Corporation
• Inventors: Hirose, Isao, Tsubaki, Hiroyuki, Kinpara, Kazuhiko
• Application Number:
  US12/659,245
• Publication Number:
  US 20100224312A1
• Time in Patent Office: Days
• US Class Current: 156/212
• CPC Class Codes: B32B 37/0015 to avoid warp or curl
• 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 2301/302 the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
• CPC Class Codes: C09J 2301/412 presence of microspheres
• CPC Class Codes: C09J 2400/24 Presence of a foam
• CPC Class Codes: C09J 7/403 characterised by the structure of the release feature
• CPC Class Codes: Y10T 156/1028 by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
• CPC Class Codes: Y10T 428/1476 Release layer
• CPC Class Codes: Y10T 428/24314 Slit or elongated

Abstract

A double-sided pressure-sensitive adhesive tape does not generate wrinkles or floating on a release liner even when the tape is attached to an adherend having a bend or curve, with the release liner held and with the tape bent in a width direction. A method is for attaching the double-sided pressure-sensitive adhesive tape to an adherend having a bend and/or curve. The double-sided pressure-sensitive adhesive tape of the present invention includes, on at least one side of a pressure-sensitive adhesive body, a release liner having a notch and/or slit in at least one edge in the width direction.

Claims

1. A double-sided pressure-sensitive adhesive tape comprising:

a pressure-sensitive adhesive body; and

a release liner arranged on at least one side of the pressure-sensitive adhesive body, wherein the release liner includes a notch and/or slit in at least one edge in a width direction of the release liner.

2. The double-sided pressure-sensitive adhesive tape according to claim 1, wherein the release liner includes two or more notches and/or slits.

3. The double-sided pressure-sensitive adhesive tape according to claim 1, wherein the notch and/or slit does not cut across a full-width of the release liner.

4. The double-sided pressure-sensitive adhesive tape according to claim 1, wherein the release liner includes the notch and/or slit in both edges in the width direction.

5. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 1 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

7. The double-sided pressure-sensitive adhesive tape according to claim 2, wherein the notch and/or slit does not cut across a full-width of the release liner.

8. The double-sided pressure-sensitive adhesive tape according to claim 2, wherein the release liner includes the notch and/or slit in both edges in the width direction.

9. The double-sided pressure-sensitive adhesive tape according to claim 3, wherein the release liner includes the notch and/or slit in both edges in the width direction.

10. The double-sided pressure-sensitive adhesive tape according to claim 7, wherein the release liner includes the notch and/or slit in both edges in the width direction.

11. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 2 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

12. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 3 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

13. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 4 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

14. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 7 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

15. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 8 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

16. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 9 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

17. A method comprising attaching the double-sided pressure-sensitive adhesive tape according to claim 10 to an adherend having a bend and/or curve, with the release liner held on one of the sides of the pressure-sensitive adhesive body and with the tape bent in the width direction.

6. A release liner comprising a notch and/or slit in at least one edge in a width direction of the release liner.