Stretch releasing adhesive tape with differential adhesive properties

• US 20020132115A1
• Filed: 05/08/2002
• Published: 09/19/2002
• Est. Priority Date: 01/21/2000
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Bries, James L., Hamerski, Michael D.
• Granted Patent: US 6,821,619 B2
• Time in Patent Office: Days
• 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 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.

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 comprises one 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, or 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 comprises a cross-section selected from circular, star-shaped, oval, or multi-faceted.

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.

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

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

4. The article of claim I 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.

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

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

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

an elongated length of stretch releasing adhesive tape with adhesive on all side surfaces, the side surfaces having at least one potential contact surface area, the potential contact surface area having a first interface surface area in an uncompressed state and a second interface surface area greater than the first interface surface area in a compressed state.

20. A stretch releasing adhesive tape article comprising an elongated length of stretch releasing adhesive tape with adhesive on all side surfaces, the side surfaces comprising at least one non-planar potential contact surface area in an uncompressed state.

21. A stretch releasing adhesive tape article comprising an elongated length of stretch releasing adhesive tape with side surfaces, the side surfaces comprising at least one potential contact surface area, the potential contact surface area being discontinuous in an uncompressed state and substantially continuous in a compressed state.

22. A method of using a stretch releasing adhesive tape article with differential adhesive properties, comprising the steps of:

positioning a potential contact surface area of an elongated length of stretch releasing adhesive tape on a substrate to form a first interface surface area;

compressing a portion of the stretch releasing adhesive tape to form a second interface surface area, the second interface surface area being greater than the first interface surface area; and

retaining an uncompressed portion of the stretch releasing adhesive tape as a pull tab.

23. A method of forming a stretch releasing adhesive tape article with differential adhesive properties, comprising the steps of:

providing an elongated length of stretch releasing adhesive tape with a generally rectangular cross section;

twisting at least a portion of the stretch releasing adhesive tape to form a twisted portion with a plurality of helical ridges;

positioning the stretch releasing adhesive tape on a substrate, the twisted portion comprising a first interface surface area;

compressing an untwisted portion a portion of the stretch releasing adhesive tape against the substrate to form a second interface surface area greater than the first interface surface area; and

retaining the twisted portion in an uncompressed state to form a pull tab.