Stretch releasing adhesive tape with differential adhesive properties

• US 6,410,135 B1
• Filed: 01/21/2000
• Issued: 06/25/2002
• Est. Priority Date: 01/21/2000
• Status: Expired due to Term

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Bries, James L., Hamerski, Michael D.
• Primary Examiner(s): Zirker, Daniel
• Assistant Examiner(s): CHANG, VICTOR S
• Application Number:
  US09/489,361
• Time in Patent Office: 886 Days
• Field of Search: 428/343, 428/317.3, 428/354, 428/213
• US Class Current: 428/343
• CPC Class Codes: C09J 2301/204 the adhesive coating being discontinuous
• 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 7/10 without carriers
• CPC Class Codes: C09J 7/20 characterised by their carriers
• CPC Class Codes: Y10T 428/2495 Thickness [relative or absolute]
• CPC Class Codes: Y10T 428/249983 As outermost component
• 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 428/2848 Three or more layers
• CPC Class Codes: Y10T 428/2861 having readily strippable combined with readily readhearable properties [e.g., stick-ons, etc.]

Abstract

A stretch releasing adhesive tape article including an elongated length of stretch releasing adhesive tape with side surfaces including at least one potential contact surface area. At least a portion of the potential contact surface area includes an adhesive surface. The potential contact surface area includes a first interface surface area in the uncompressed state and a second interface surface area greater than the first interface surface area in the compressed state. The stretch releasing adhesive tape in the uncompressed state can operate as a pull tab. The potential contact surface area in the uncompressed state can include a plurality of raised portions, a non-planar structure, or a discontinuous surface.

Claims

1. A stretch releasing adhesive tape article with differential adhesive properties in an uncompressed state and a compressed state, comprising:

an elongated length of stretch releasing adhesive tape comprising at least one potential contact surface area, at least a portion of the potential contact surface area comprising an adhesive surface having at least one raised portion, the potential contact surface area comprising a first interface surface area in the uncompressed state and a second interface surface area substantially greater than the first interface surface area in the compressed state.

2. The article of claim 1 wherein a portion of the stretch releasing adhesive tape in the uncompressed state comprises a pull tab.

3. The article of claim 1 wherein the stretch releasing adhesive tape comprises a multi-layer structure.

4. The article of claim 1 wherein the stretch releasing adhesive tape comprises a structural member.

5. The article of claim 4 wherein the structural member is selected from one of a film, an elastic foam, an inelastic foam, a monofilament.

6. The article of claim 1 wherein the stretch releasing adhesive tape comprises a hollow portion.

7. The article of claim 1 wherein the stretch releasing adhesive tape is selected from the group consisting of a pressure sensitive adhesive tape with an elastic structural member, a pressure sensitive adhesive tape with a highly extensible and substantially inelastic structural member, and a solid pressure sensitive adhesive.

8. The article of claim 1 wherein the potential contact surface area in the uncompressed state comprises a non-planar structure.

9. The article of claim 1 wherein the potential contact surface area in the uncompressed state comprises a discontinuous surface.

10. The article of claim 1 wherein the potential contact surface area in the compressed state comprises a substantially continuous surface.

11. The article of claim 1 wherein the stretch releasing adhesive tape in the uncompressed state has a cross-section selected from the group consisting of circular, star-shaped, oval, and multi-faceted.

12. The article of claim 1 wherein the stretch releasing adhesive tape in the uncompressed state comprises a geometric shape that provides less surface area in the uncompressed state than in the compressed state.

13. The article of claim 1 wherein the potential contact surface area comprises a rectangular cross-section of stretch releasing adhesive tape twisted to form helical ridges.

14. The article of claim 1 wherein the elongated length of stretch releasing adhesive tape comprises a roll of stretch releasing adhesive tape.

15. The article of claim 1 comprising a release liner adhered to the potential contact surface area.

16. The article of claim 1 comprising frangible connections formed intermittently along the stretch releasing adhesive tape.

17. The article of claim 1 wherein the stretch releasing adhesive tape comprises adhesive on the entire potential contact surface area.

18. The article of claim 1 wherein the potential contact surface area comprises adhesive regions and non-adhesive regions.