US2020332515A1PendingUtilityA1

Easy to apply air and water barrier articles

Assignee: 3M INNOVATIVE PROPERTIES COPriority: Feb 18, 2014Filed: Jul 2, 2020Published: Oct 22, 2020
Est. expiryFeb 18, 2034(~7.6 yrs left)· nominal 20-yr term from priority
Y10T428/2839Y10T428/1476Y10S428/906Y10T428/2848C09J 2467/005B32B 27/065C09J 7/401C09J 7/21E04B 1/625C09J 2423/046C09J 2301/1242C09J 2301/302C09J 2301/122B32B 2307/7242B32B 7/12C09J 2400/263B32B 2419/00C09J 2483/005B32B 27/32B32B 2266/08B32B 2307/7265B32B 2405/00C09J 7/205B32B 27/36C09J 7/38C09J 2471/006C09J 2301/204B32B 5/18C09J 2201/606C09J 2201/122C09J 2201/28C09J 2201/134
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Claims

Abstract

There are provided rolls comprising an air and water barrier article having opposing first and second major surfaces, a pressure sensitive adhesive disposed on at least the first major surface of the article, and a liner having a first major surface that contacts the opposing second major surface of the article, wherein the pressure sensitive adhesive contacts a second major surface of the liner when wound in the roll. There are also provided self-adhering air and water barrier articles and building envelopes made using the presently disclosed rolls.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A roll comprising:
 an air and water barrier article having opposing first and second major surfaces;   a pressure sensitive adhesive disposed on at least the first major surface of the air and water barrier article, and   a liner comprising a substrate and having a first major surface that contacts the second major surface of the air and water barrier article, wherein the pressure sensitive adhesive contacts a second major surface of the liner when wound in the roll, and wherein a release strength between the second major surface of the liner and the pressure sensitive adhesive is less than or equal to a release strength between the first major surface of the liner and the second major surface of the air and water barrier article.   
     
     
         2 . The roll of  claim 1 , wherein the substrate comprises at least one of polyester film, paper, or polyethylene film. 
     
     
         3 . The roll of  claim 1 , wherein the liner is coated on at least one of the first major surface or the second major surface with a release coating. 
     
     
         4 . The roll of  claim 1 , further comprising surface modification at the interface between the second major surface of the air and water barrier article and the first major surface of the liner. 
     
     
         5 . The roll  claim 1 , wherein a width of the air and water barrier article is greater than or equal to 18 inches. 
     
     
         6 . The roll of  claim 1 , wherein the liner is derived from applying a layer comprising a (meth)acrylate-functional siloxane to a major surface of the substrate and irradiating said layer in a substantially inert atmosphere comprising no greater than 500 ppm oxygen, with a short wavelength polychromatic ultraviolet light source having at least one peak intensity at a wavelength of from about 160 nanometers to about 240 nanometers to at least partially cure the layer, optionally wherein the layer is cured at a curing temperature greater than 25° C. 
     
     
         7 . The roll of  claim 1 , wherein the air and water barrier article passes at least one of Modified Test 1 of ASTM D-1970/D-1970M-13, Modified Test 2 of ASTM D-1970/D-1970M-13, or Modified Test 3 of ASTM D-1970/D-1970M-13. 
     
     
         8 . The roll of  claim 1 , wherein the air and water barrier article is water vapor permeable. 
     
     
         9 . The roll of  claim 1 , wherein the air and water barrier article comprises a porous layer at least partially impregnated with a polymeric material, and wherein a first major surface of the porous layer is covered with the polymeric material. 
     
     
         10 . The roll of  claim 1 , wherein the air and water barrier article comprises a major surface of a porous layer that is coated with a polymeric material. 
     
     
         11 . The roll of  claim 10 , wherein the polymeric material comprises a polyoxyalkylene polymer having at least one end group derived from an alkoxy silane. 
     
     
         12 . The roll of  claim 11 , wherein all of the end groups of the polyoxyalkylene polymer are silyl terminated. 
     
     
         13 . The roll of  claim 11 , wherein the polyoxyalkylene polymer further comprises at least one silyl modified branched group. 
     
     
         14 . The roll of  claim 10 , wherein the polymeric material is a solid material or a foam material. 
     
     
         15 . The roll of  claim 14 , wherein the foam material comprises a closed cell foam. 
     
     
         16 . The roll of  claim 1 , wherein the pressure sensitive adhesive comprises a first pressure sensitive adhesive that is pattern coated on the first major surface of the article. 
     
     
         17 . The roll of  claim 16 , further comprising a second pressure sensitive adhesive that is pattern coated on the first major surface of the article. 
     
     
         18 . The roll of  claim 17 , wherein the first pressure sensitive adhesive and the second pressure sensitive adhesives are different pressure sensitive adhesives. 
     
     
         19 . A self-adhering air and water barrier article derived from the roll of  claim 1 , wherein the self-adhering air and water barrier article comprises the air and water barrier article having opposing first and second major surfaces, the pressure sensitive adhesive disposed on at least the first major surface of the air and water barrier article, and the liner having the first major surface in contact with the opposing second major surface of the air and water barrier article. 
     
     
         20 . The self-adhering air and water barrier article of claim  22  disposed on a major surface of a building component.

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