Laminate, adhesive kit, laminated structure and production method thereof, and contact adhesive composition

Abstract

A laminate comprising a substrate layer; a contact adhesive layer comprising a contact adhesive agent having at least one of chloroprene rubber or acrylic copolymers, as well as microspheres having an average particle size of 0.5 μm or greater in the contact adhesive layer, wherein the contact adhesive layer contains from 5 parts by mass to 500 parts by mass of the microspheres per 100 parts by mass of the contact adhesive agent, and the contact adhesive layer has a plurality of protruding portions because of the microspheres.

1 . A laminate comprising:
 a substrate layer having a first and second major surface;   a contact adhesive layer having a first and second major surface, the second major surface of the contact adhesive layer adhesively coupled to the first major surface of the substrate layer, the contact adhesive layer comprising a contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers, and additionally comprising microspheres have an average particle size of 0.5 μm or greater; wherein the contact adhesive layer contains from 5 parts by mass to 500 parts by mass of the microspheres per 100 parts by mass of the contact adhesive agent, and   the first major surface of the contact adhesive layer comprises a plurality of protrusions corresponding to the locations of at least some of the microspheres.   
     
     
         2 . The laminate according to  claim 1 , wherein the contact adhesive layer is substantially nontacky. 
     
     
         3 . The microspheres according to  claim 1 , wherein the microspheres comprise cross-linked organic resin. 
     
     
         4 . The laminate according to any  claim 1 , wherein the microspheres comprise solid microspheres of acrylic polymer or urethane polymer. 
     
     
         5 . The laminate according to  claim 1 , wherein the microspheres are substantially nontacky. 
     
     
         6 . The laminate according to  claim 1 , wherein a mass per unit area of the contact adhesive layer is from 5 g/m 2  to 100 g/m 2 . 
     
     
         7 . The laminate according to  claim 1 , wherein a 60 degree gloss value of the first major surface of the contact adhesive layer is from 1 to 40. 
     
     
         8 . The laminate according to  claim 1 , wherein a glass transition temperature of the acrylic copolymer of the contact adhesive agent is from 0° C. to 60° C. 
     
     
         9 . An adhesive kit comprising:
 the laminate recited in  claim 1  and   
       a primer agent comprising a second contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers. 
     
     
         10 . The adhesive kit according to  claim 9 , wherein the primer agent comprises second microspheres having an average particle size of 0.5 μm or greater. 
     
     
         11 . The adhesive kit according to  claim 9 , wherein the primer agent comprises from 5 parts by mass to 500 parts by mass of the second microspheres per 100 parts by mass of the second contact adhesive agent. 
     
     
         12 . The adhesive kit according to  claim 9 , wherein the second microspheres comprises cross-linked resin. 
     
     
         13 . A method of producing a laminated structure on an adhered, the method comprising:
 preparing the laminate recited in  claim 1 ;   applying a primer agent containing a second contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers on an installation surface so as to form a second contact adhesive layer;   placing the laminate on the second contact adhesive layer, and   adhering the contact adhesive layer of the laminate to the second contact adhesive layer by applying pressure to successive portions of the laminate.   
     
     
         14 . The method according to  claim 13 , wherein the primer agent comprises second microspheres having an average particle size of 0.5 um or greater and have a plurality of protrusions corresponding to the locations of at least some of the microspheres. 
     
     
         15 . The method according to  claim 13 , wherein the primer agent contains from 5 parts by mass to 150 parts by mass of the second microspheres per 100 parts by mass of the second contact adhesive agent. 
     
     
         16 . The method according to  claim 14 , wherein the second microspheres comprises cross-linked resin. 
     
     
         17 . A laminated structure formed on an installation surface to be adhered comprising:
 the laminate recited in  claim 1 , and   a second contact adhesive layer covered on the installation surface, wherein both of the contact adhesive layer of the laminate and the second contact adhesive layer are adhered each other,   the second contact adhesive layer comprises a second contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers.   
     
     
         18 . The laminated structure according to  claim 17 , wherein the second contact adhesive layer comprises second microspheres having an average particle size of 0.5 um or greater. 
     
     
         19 . The laminated structure according to  claim 17 , wherein the second contact adhesive layer comprises from 5 parts by mass to 500 parts by mass of the second microspheres per 100 parts by mass of the second contact adhesive agent. 
     
     
         20 . A contact adhesive composition comprising:
 a contact adhesive agent comprising at least one of chloroprene rubber or acrylic copolymers, and microspheres having an average particle size of 0.5 μm or greater, and comprising from 5 parts by mass to 500 parts by mass of the organic resin microspheres per 100 parts by mass of the contact adhesive agent.