Release liner for pressure sensitive adhesives and method of use

Patent metadata

Field	Value
Publication number	US-10081133-B2
Application number	US-201615161335-A
Country	US
Kind code	B2
Filing date	May 23, 2016
Priority date	Dec 23, 2005
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

A double-sided adhesive tape assembly that includes a double-sided tape having a pressure sensitive adhesive (“PSA”) on each side thereof and a delaminatable release liner in contact with the pressure sensitive adhesive (“PSA”) on one or both sides of the double-sided tape is disclosed. A roll of the double-sided adhesive tape assembly is also disclosed. Methods of making and using the double-sided adhesive tape assembly are also disclosed.

First claim

What is claimed is:

1. A method of applying a double-sided pressure sensitive adhesive tape to a surface, said method comprising:
providing an adhesive tape assembly comprising:
a double-sided adhesive tape comprising front and back adhesive sides, each of said adhesive sides comprising a pressure sensitive adhesive; and
a delaminatable release liner in contact with, bonded to and readily removable from at least one of said adhesive sides, said delaminatable release liner comprising:
a first major release surface on an exposed side of said release liner,
a second major release surface on an opposite side of said release liner, and
a plane of weakness between said first and second major release surfaces, wherein said release liner can be readily delaminated lengthwise along said plane of weakness, between said first and second major release surfaces, so as to form a first delaminated layer and a second delaminated layer, with said first delaminated layer comprising said first major release surface and a first back side surface opposite said first major release surface, and said second delaminated layer comprising said second major release surface and a second back side surface opposite said second major release surface,

 wherein said adhesive tape assembly has (i) a first bond strength between said first back side surface and said second back side surface, and (iii) a second bond strength between said first major release surface and said front adhesive side, and
 wherein said second bond strength is lower than said first bond strength;
applying the front adhesive side of the adhesive tape to the surface; and
at least partially forming the first delaminated layer and the second delaminated layer by delaminating the release liner along the plane of weakness so as to at least partially separate the first delaminated layer from the second delaminated layer.

2. The method as set forth in claim 1 , further comprising:
bonding a tab to the second back side surface of the at least partially formed second delaminated layer, such that the second delaminated layer can be removed from the tape by pulling on the tab.

3. The method as set forth in claim 1 , wherein the surface is the surface of a portion of a vehicle.

Assignees

• 3M Innovative Properties Co

Inventors

• Zoller Panu K

Classifications

• B29C65/5021

  being multi-layered · CPC title

• C09J2205/114

  Chemistry & Metallurgy · mapped topic

• C09J7/401

  characterised by the release coating composition · CPC title

• B29C65/5057 Primary

  positioned between the surfaces to be joined (B29C65/5035 takes precedence) · CPC title

• Y10T428/1476

  Release layer · CPC title