Stretch releasing adhesive article for fragile surfaces

• US 20060068144A1
• Filed: 09/29/2004
• Published: 03/30/2006
• Est. Priority Date: 09/29/2004
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Mizuno, Eiji, Bries, James L.
• Granted Patent: US 7,276,272 B2
• Time in Patent Office: Days
• US Class Current: 428/40.100
• CPC Class Codes: A47G 1/175 Stretch releasing adhesives
• 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 7/20 characterised by their carriers
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive
• CPC Class Codes: Y10T 428/24479 including variation in thickness
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer

Abstract

A stretch releasing adhesive article for mounting on a wall surface includes an elongated stretch releasing adhesive strip having a first major surface with a non-adhesive contact surface adjacent the first end, and a backplate having a first major surface including a protrusion arranged in overlapping relation with the adhesive strip non-adhesive contact surface that serves to concentrate a force applied by a user in the region of the first end of the backplate in the region of the non-adhesive contact surface of the adhesive strip. A method of adhesively mounting an item to, and removing an item from, a wall surface that is susceptible to damage without damaging the surface is also disclosed.

Claims

1. A stretch releasing adhesive article for mounting on a wall surface, comprising:

(a) an elongated stretch releasing adhesive strip having first and second opposed major surfaces, first and second ends, and a non-adhesive pull tab forming said second end, at least said first major surface including a non-adhesive contact surface adjacent said first end; and

(b) a backplate having first and second opposed major surfaces and first and second ends arranged adjacent said adhesive strip second major surface, said backplate first major surface including a protrusion arranged in overlapping relation with said adhesive strip non-adhesive contact surface, thereby to concentrate a force applied by a user in the region of the first end of the backplate in the region of the non-adhesive contact surface of the adhesive strip during the removal process.

2. An article as defined in claim 1, wherein the protrusion is in contact with the adhesive second major surface of the adhesive strip.

3. An article as defined in claim 1, wherein the non-adhesive contact surface has a longitudinal length of at least 0.5 millimeters.

4. An article as defined in claim 1, wherein the adhesive strip second major surface adjacent said first end is non-adhesive.

5. An article as defined in claim 1, wherein said backplate second major surface opposite said protrusion is provided with indicia indicating where a user should press during the removal process.

6. An article as defined in claim 1, wherein said backplate includes a tapered first end portion arranged in overlapping relation with said adhesive strip non-adhesive contact surface.

7. An article as defined in claim 1, wherein said backplate includes a first end portion hingably connected with a second end portion and said first end portion is movable between a first position adjacent said backplate second end portion and a second position adjacent said adhesive strip.

8. A method of adhesively mounting an item to, and removing an item from, a wall surface susceptible to damage without damaging the surface, said method comprising the steps of:

(a) providing an elongated stretch releasing adhesive strip having first and second opposed major surfaces, first and second ends, and a non-adhesive pull tab forming the second end, at least the first major surface of the adhesive strip including a non-adhesive contact surface adjacent the first end, whereby the non-adhesive contact surface is arranged adjacent the delicate surface;

(b) adhesively bonding the item to the wall surface by adhering the adhesive strip first major surface to the wall surface and arranging the item on the adhesive strip second major surface, thereby bonding the item to the wall surface;

(c) applying a force to the item opposite the strip non-adhesive contact surface, thereby to firmly maintain the non-adhesive surface of the adhesive strip in contact with the wall surface during the removal process; and

(d) stretching the adhesive strip by applying a longitudinal force to the non-adhesive pull tab to debond the adhesive strip from the item and the wall surface.

9. The method of claim 8, wherein the wall surface is selected from at least one of paper, paint, and vinyl.

10. The method of claim 8, wherein the wall surface is a vinyl wall covering.