Stretch releasing adhesive tape with differential adhesive properties

• US 6,821,619 B2
• Filed: 05/08/2002
• Issued: 11/23/2004
• 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): Morris, Terrel
• Assistant Examiner(s): Chang, Victor S
• Application Number:
  US10/142,663
• Publication Number:
  US 20020132115A1
• Time in Patent Office: 930 Days
• Field of Search: 428/343, 428/213, 428/205.3, 428/354
• 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. An elongated stretch releasing adhesive article with differential adhesive properties in a compressed state and an uncompressed state having a three dimensional cross-section and compressing:

an elongated length of stretch releasing adhesive material with continuously adhesive side surfaces about the periphery of the material, the side surfaces having at least one potential contact surface area, the potential contact surface area comprising a first interface surface area in an uncompressed state prior to adhesion to a substrate surface, and a second interface surface area in a compressed state after adhesion to said substrate surface, said second interface area being greater than the first interface surface area.

2. An elongated stretch releasing adhesive article comprising an elongated length of stretch releasing adhesive material with continuously adhesive side surfaces, the side surfaces comprising at least one non-planar potential contact surface area in an uncompressed state.

3. An elongated stretch releasing adhesive article comprising an elongated length of stretch releasing adhesive material 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.