High bond strength, repositionable adherent sheet

Abstract

An adherent sheet material and method of making including at least one adhesive, non-raised region protected from inadvertent adherence to a contact surface. This adherent sheet material also including a film having a front face and back face, wherein the front face has a plurality of collapsible, non-adhesive protrusions extending outwardly from the front face and adhesive, non-raised region disposed between the protrusions. Also, a substrate is bonded to the back face of film. An adherent sheet material including a contact adhesive protected from inadvertent adherence to a contact surface. This adherent sheet material also including a film having a front face and back face, wherein the front face has a plurality of collapsible, non-adhesive protrusions extending outwardly from the front face and adhesive, non-raised region disposed between the protrusions. The film also includes a number density of protrusions from about 50 protrusions per square inch of the film to about 150 protrusions per square inch of the film. Also, the contact adhesive is disposed upon non-raised regions.

1 . An adherent sheet material comprising at least one adhesive, non-raised region protected from inadvertent adherence to a contact surface, said sheet material comprising: 
 a film having a front face and back face, said front face having a plurality of collapsible, non-adhesive protrusions extending outwardly from said front face and said adhesive, non-raised region disposed between said protrusions, said protrusions having a number density from 10 protrusions per square inch of said film to 175 protrusions per square inch of film; and    a permeable substrate layer bonded to said back face of said film with a laminating adhesive, said laminating adhesive comprising air flow management means.    
   
   
       2 . The sheet material of  claim 1 , further comprising a contact adhesive disposed upon said non-raised regions.  
   
   
       3 . The sheet material of  claim 1 , wherein a compressive force of at least 0.1 psi is required to collapse said protrusions.  
   
   
       4 . The sheet material of  claim 1 , wherein said density of protrusions ranges from 50 protrusions per square inch of said film to 150 protrusions per square inch of said film.  
   
   
       5 . The sheet material of  claim 1 , wherein said substrate layer is a member selected from the group consisting of flexible foil, fabric, plastic film and paper.  
   
   
       6 . The sheet material of  claim 1 , wherein said air flow management means comprises air vent channels.  
   
   
       7 . The sheet material of  claim 6 , wherein said sheet material is at least temporarily selectively activatable.  
   
   
       8 . The sheet material of  claim 1 , wherein said substrate further comprises air flow management means.  
   
   
       9 . The sheet material of  claim 8 , wherein said air flow management means further comprises at least one aperture disposed within a plurality of said protrusions.  
   
   
       10 . An adherent sheet material comprising at least one adhesive, non-raised region protected from inadvertent adherence to a contact surface, said sheet material further comprising: 
 a permeable film having a front face and back face, said front face having a plurality of collapsible, non-adhesive protrusions extending outwardly from said front face and said adhesive, non-raised region disposed between said protrusions, said film having a number density of protrusions from about 10 protrusions per square inch of said film to about 175 protrusions per square inch of said film;    a substrate layer bonded to said back face of said film with an adhesive, said adhesive comprising air flow management means; and,    wherein said adhesive non-raised region having a peel force of at least about 0.3 pounds per linear inch.    
   
   
       11 . The sheet material of  claim 10 , wherein a compressive force ranging from 0.5 pounds per square inch to 15 pounds per square inch is required to collapse said protrusions.  
   
   
       12 . The sheet material of  claim 10 , said number density of protrusion ranges from 60 protrusions per square inch of said film to 90 protrusions per square inch of said film.  
   
   
       13 . The sheet material of  claim 10 , wherein said film further comprises air venting channels.  
   
   
       14 . The sheet material of  claim 13 , wherein said air vent channel comprises at least one aperture disposed within a plurality of said protrusions.  
   
   
       15 . The sheet material of  claim 10 , wherein said protrusions have a non-adhesive coating disposed thereon.  
   
   
       16 . An adherent sheet material comprising a contact adhesive protected from inadvertent adherence to a contact surface, said sheet material comprising: 
 a film having a front face and back face, said front face having a plurality of collapsible protrusions extending outwardly from said front face and non-raised regions disposed between said protrusions;    a porous substrate layer bonded to said back face with a laminating adhesive, said laminating adhesive comprising air flow management means; and,    said adhesive disposed upon said non-raised regions, said film having a number density of protrusions from about 50 protrusions per square inch of said film to about 150 protrusions per square inch of said film.    
   
   
       17 . The sheet material of  claim 16 , wherein said protrusions have a height ranging from 0.01 inches to 0.04 inches.  
   
   
       18 . The sheet material of  claim 17 , wherein each of said protrusions has a protrusion base surface area ranging from 0.0007 inches to 0.008 square inches.  
   
   
       19 . The sheet material of  claim 16 , wherein said protrusions are dome-shaped and have a base diameter ranging from 0.03 inches to 0.1 inches.  
   
   
       20 . The sheet material of  claim 16 , wherein said film is high density polyethylene having a thickness ranging from 0.0003 inches to 0.003 inches.