Method for forming an automotive vehicle weatherseal having a metal substrate with bonded elastomeric layer

Abstract

A laminate having a metal reinforcement and a bonding veneer is disclosed, wherein the bonding veneer is a peroxide cured rubber including at least one of a polybutadiene and (meth)acrylate. A feature layer is formed on the bonding veneer and can be any of a variety of cross-linkable materials such as EPDM and EPM.

In the claims:  
     
         1 . A composite support for an automotive vehicle, the support having a metal reinforcement, the support comprising: 
 (a) a peroxide cured rubber layer bonded to the metal reinforcement, the peroxide cured rubber layer including one of a polybutadiene and a (meth)acrylate; and    (b) a sulfur cured rubber layer on the peroxide cured rubber layer.    
     
     
         2 . The composite support of  claim 1 , wherein the sulfur cured rubber is EPDM or EPM.  
     
     
         3 . The composite support of  claim 1 , wherein the peroxide cured rubber layer includes an insulator to reduce galvanic corrosion of the metal reinforcement.  
     
     
         4 . The composite support of  claim 1 , further comprising both a polybutadiene and a (meth)acrylate in the peroxide cured rubber layer.  
     
     
         5 . A composite support for an automotive vehicle, the support comprising: 
 (a) a metal reinforcement;    (b) a peroxide cured bonding veneer bonded to at least a portion of the metal reinforcement; and    (c) a sulfur cured rubber layer on the peroxide cured bonding veneer.    
     
     
         6 . The composite support of  claim 5 , wherein the bonding veneer includes a polybutadiene.  
     
     
         7 . The composite support of  claim 5 , wherein the bonding veneer includes (meth)acrylate.  
     
     
         8 . The composite support of  claim 5 , wherein the bonding veneer includes a polybutadiene and a (meth)acrylate.  
     
     
         9 . The composite support of  claim 5 , further comprising a insulating filler in the bonding veneer.  
     
     
         10 . The composite support of  claim 5 , wherein the metal reinforcement is one of a steel, stainless steel, aluminum or a galvanized steel.  
     
     
         11 . A method of forming a composite support for an automotive vehicle, comprising: 
 (a) extruding a peroxide curable rubber layer onto a metal carrier, the peroxide cured rubber layer including one of a polybutadiene and (meth)acrylate;    (b) depositing a sulfur curable rubber layer on the peroxide cured rubber layer; and    (c) curing the sulfur curable rubber layer.    
     
     
         12 . The method of  claim 11 , further comprising including both a polybutadiene and (meth)acrylate in the peroxide curable rubber layer.  
     
     
         13 . The method of  claim 11 , further comprising including an insulator in the to reduce galvanic corrosion of the metal reinforcement in the peroxide cured rubber layer.