Rubber-based adhesive composition and rubber-based adhesive using same

Abstract

The present invention relates to a rubber-based adhesive composition and a rubber-based adhesive using the same, the composition including: a rubber-based resin; and a rosin-based resin having at least one hydrophilic group.

1 . A rubber-based adhesive composition comprising:
 a rubber-based resin; and   a rosin-based resin having at least one hydrophilic group.   
     
     
         2 . The rubber-based adhesive composition of  claim 1 , wherein the rosin-based resin has one or more hydrophilic groups selected from the group consisting of a carboxyl group, a hydroxyl group, a carbonyl group, a sulfonic acid group, an amino group, and a phosphoric acid group. 
     
     
         3 . The rubber-based adhesive composition of  claim 1 , wherein the rosin-based resin has two to six hydrophilic groups. 
     
     
         4 . The rubber-based adhesive composition of  claim 1 , wherein the rosin-based resin comprises a structure represented by any one of the following [Chemical Formula 1] to [Chemical Formula 7]: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         in Chemical Formula 3, R 1 , R 2 , and R 3  are the same as or different from each other, and are an alkylene group having 1 to 10 carbon atoms. 
       
     
     
         5 . The rubber-based adhesive composition of  claim 1 , wherein the rosin-based resin has a softening point of 70° C. to 110° C. 
     
     
         6 . The rubber-based adhesive composition of  claim 1 , wherein the rosin-based resin is comprised in an amount of 1 part by weight to 40 parts by weight based on 100 parts by weight of the rubber-based adhesive composition. 
     
     
         7 . The rubber-based adhesive composition of  claim 1 , wherein the rubber-based resin comprises one or more selected from the group consisting of a butyl-based rubber, a styrene-butadiene-styrene (SBS)-based rubber, a styrene-butadiene (SB)-based rubber, a styrene-isoprene-styrene (SIS)-based rubber, a styrene-ethylene-butylene-styrene (SEBS)-based rubber, and a natural rubber (LATEX). 
     
     
         8 . The rubber-based adhesive composition of  claim 7 , wherein the butyl-based rubber comprises one or more selected from the group consisting of a butyl rubber, a bromo butyl rubber, and a chlorinated butyl rubber. 
     
     
         9 . The rubber-based adhesive composition of  claim 1 , wherein the rubber-based resin is comprised in an amount of 50 parts by weight to 80 parts by weight based on 100 parts by weight of the rubber-based adhesive composition. 
     
     
         10 . The rubber-based adhesive composition of  claim 1 , further comprising: one or more selected from the group consisting of a UV curing agent, a UV stabilizer, a photoinitiator, a thermal initiator, an antioxidant, a filler, and a plasticizer. 
     
     
         11 . A rubber-based adhesive obtained by curing the rubber-based adhesive composition according to  claim 1 . 
     
     
         12 . The rubber-based adhesive of  claim 11 , wherein the rubber-based adhesive has a thickness of 10 μm to 200 μm. 
     
     
         13 . The rubber-based adhesive of  claim 11 , wherein the rubber-based adhesive has an adhesive strength of 500 g/in or more. 
     
     
         14 . The rubber-based adhesive of  claim 11 , wherein the rubber-based adhesive has a water vapor transmission rate of 10 g/m 2 ·24 hr or less under conditions of a temperature of 38° C. and a relative humidity of 90%.