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 comprising 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, and the sheet has a moisture absorption percentage of not more than 2.5% as measured according to ASTM D570. 
     
     
         2 . The sheet according to  claim 1 , comprising, in the following order, the elastomer layer, and further comprising a core material layer and a pressure-sensitive adhesive layer. 
     
     
         3 . The sheet according to  claim 2 , further comprising a release liner laminated on the elastomer layer. 
     
     
         4 . The sheet according to  claim 2 , further comprising a release liner laminated on the pressure-sensitive adhesive layer. 
     
     
         5 . The sheet according to  claim 2 , wherein the core material layer is a plastic film. 
     
     
         6 . The sheet according to  claim 2 , wherein the core material layer is a nonporous film. 
     
     
         7 . The sheet according to  claim 2 , wherein the core material layer is a fluororesin film. 
     
     
         8 . The sheet according to  claim 1 , comprising the elastomer layer, and further comprising a core material layer and a second elastomer layer having a Shore A hardness of less than 40. 
     
     
         9 . The sheet according to  claim 8 , further comprising a release liner laminated on one of the elastomer layer and the second elastomer layer. 
     
     
         10 . The sheet according to  claim 8 , further comprising a substrate laminated on one of the elastomer layer and the second elastomer layer. 
     
     
         11 . The sheet according to  claim 8 , wherein the core material layer is a plastic film. 
     
     
         12 . The sheet according to  claim 8 , wherein the core material layer is a nonporous film. 
     
     
         13 . The sheet according to  claim 8 , wherein the core material layer is a fluororesin film. 
     
     
         14 . The sheet according to  claim 1 , wherein the elastomer layer 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 method of moisture-proofing an adherend, comprising adhering the sheet according to  claim 1  to the adherend with the elastomer layer of the sheet as an adhesive surface to the adherend. 
     
     
         17 . The method according to  claim 16 , wherein the adherend is at least one adherend selected from the group consisting of a floor panel and a constructional material in a transporter or structure. 
     
     
         18 . The method according to  claim 16 , further comprising, after the adhering, peeling the sheet from the adherend and performing the method using the peeled sheet or using a newly prepared sheet according to  claim 1 . 
     
     
         19 . A method of corrosion-proofing a metal plate, comprising adhering the sheet according to  claim 1  to the metal plate with the elastomer layer of the sheet as an adhesive surface to the metal plate.