Sheet, moisture-proof method of adherend using the sheet and corrosion-proof method of metal plate using the sheet

Abstract

The present invention provides a sheet having an elastomer layer having a Shore A hardness of less than 40, wherein the elastomer layer has an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength.

1 . A sheet having an elastomer layer having a Shore A hardness of less than 40, wherein the elastomer layer has an adhesion force to stainless steel of not more than 11 oz/in at 90 degree peel strength. 
     
     
         2 . The sheet according to  claim 1 , having a laminate constitution of elastomer layer having a Shore A hardness of less than 40/core material/pressure-sensitive adhesive layer. 
     
     
         3 . The sheet according to  claim 2 , which is a double-faced adhesive sheet wherein a release liner is further laminated on the elastomer layer having a Shore A hardness of less than 40. 
     
     
         4 . The sheet according to  claim 2 , which is a double-faced adhesive sheet wherein a release liner is further laminated on the pressure-sensitive adhesive layer. 
     
     
         5 . The sheet according to  claim 2 , wherein the core material is a plastic film. 
     
     
         6 . The sheet according to  claim 2 , wherein the core material is a nonporous film. 
     
     
         7 . The sheet according to  claim 2 , wherein the core material is a fluororesin film. 
     
     
         8 . The sheet according to  claim 1 , having a laminate constitution of elastomer layer having a Shore A hardness of less than 40/core material/elastomer layer having a Shore A hardness of less than 40. 
     
     
         9 . The sheet according to  claim 8 , which is a double-faced adhesive sheet wherein a release liner is further laminated on one of the elastomer layers having a Shore A hardness of less than 40. 
     
     
         10 . The sheet according to  claim 8 , which is a single-faced adhesive sheet wherein a substrate is further laminated on one of the elastomer layers having a Shore A hardness of less than 40. 
     
     
         11 . The sheet according to  claim 8 , wherein the core material is a plastic film. 
     
     
         12 . The sheet according to  claim 8 , wherein the core material is a nonporous film. 
     
     
         13 . The sheet according to  claim 8 , wherein the core material is a fluororesin film. 
     
     
         14 . The sheet according to  claim 1 , wherein the elastomer layer having a Shore A hardness of less than 40 is a silicone rubber layer or urethane rubber layer having a Shore A hardness of less than 40. 
     
     
         15 . The sheet according to  claim 2 , wherein the pressure-sensitive adhesive layer is a polyoxyalkylene-based adhesive layer. 
     
     
         16 . A moisture-proof method of an adherend, comprising adhering the sheet according to  claim 1  to the adherend, with the elastomer layer having a Shore A hardness of less than 40 of the sheet as an adhesive surface to the adherend. 
     
     
         17 . The method according to  claim 16 , wherein the adherend is a floor panel and/or a constructional material in a transporter or structure. 
     
     
         18 . The method according to  claim 16 , comprising, after said method, peeling the sheet from the adherend, performing said method using the peeled sheet, or using a newly prepared sheet according to  claim 1 . 
     
     
         19 . A corrosion-proof method of a metal plate, comprising adhering the sheet according to  claim 1  to the metal plate, with the elastomer layer having a Shore A hardness of less than 40 of the sheet as an adhesive surface to the metal plate.