Method of applying adhesive coated film

Patent metadata

Field	Value
Publication number	US-9855732-B2
Application number	US-201514949350-A
Country	US
Kind code	B2
Filing date	Nov 23, 2015
Priority date	Jan 25, 1999
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

An adhesive-applying method is disclosed herein. The method comprises: providing a film comprising pressure sensitive adhesive coated on a major surface thereof; heating the film to a softening point of the film; and pressing the film against a substrate with an application device, the application device comprising a film-contacting portion, the film-contacting portion comprising a foam material and having a thermal conductivity of less than 1.8 BTU in/(hr ft 2 ° F.); wherein the pressure sensitive adhesive on the major surface of the film adheres to the substrate. Application devices and kits that may be used in conjunction with the method are also disclosed herein.

First claim

What is claimed is:

1. A method of applying a film having a pressure sensitive adhesive on a major side thereof to a concrete, cement block, stucco, or brick substrate having an irregular surface, the method comprising:
heating a portion of the film with a heat source adapted to apply air heated to about 200° C. to about 400° C. to the portion of the film until the portion of the film softens, to form a heated portion of the film;
pressing the heated portion of the film against the substrate with an application device, the application device comprising a film-contacting portion comprising an open cell foam material having a uniform surface structure and a thermal conductivity of less than 1.8 BTU in/(hr ft 2 ° F.); and
wherein the pressure sensitive adhesive on the major surface of the film associated with said pressing adheres to the irregular surface of the substrate in a single pressing.

2. The method of claim 1 , wherein the heating occurs before pressing the heated portion of the film against the substrate.

3. The method of claim 1 , wherein the heating occurs while the portion of the film is in contact with the film-contacting portion before pressing the film against the substrate.

4. The method of claim 1 , wherein heating the portion of the film to the softening point of the film comprises heating a selected portion of the film.

5. The method of claim 1 , wherein the open cell foam material comprises cells that are no larger than about 0.5 mm in diameter.

6. The method of claim 1 , wherein the film-contacting portion is in the form of a roller.

7. The method of claim 1 , wherein the film comprises a vinyl film, polyolefin film, unoriented polyolefin films, polyurethane film, ionomeric resin film, acrylic film, or a fluoroelastomeric film.

8. The method of claim 1 , wherein the substrate comprises a highly textured surface.

9. The method of claim 1 , wherein the film comprises a rigid film.

10. The method of claim 1 , further comprising:
before the heating and pressing steps, tenting the film against the substrate.

11. The method of claim 1 , wherein the heated portion of the film that has been pressed against the substrate closely conforms to the substrate.

12. The method of claim 1 , further comprising:
repeating the pressing step.

Assignees

• 3M Innovative Properties Co

Inventors

• Steelman Ronald S
• David John R

Classifications

• G09F15/02

  Bills, posters, or the like therefor · CPC title

• G09F7/12

  the elements being secured or adapted to be secured by self-adhesion, moisture, suction, slow-drying adhesive or the like · CPC title

• C09J2427/006

  in the substrate · CPC title

• C09J5/06

  involving heating of the applied adhesive · CPC title

• B32B2605/00

  Vehicles · CPC title