Impregnating and bonding agent for textiles

Abstract

Impregnating and bonding agent for textiles, comprising a mixture of a resorcinol-formaldehyde precondensate A, a rubber latex B and a melamine-formaldehyde resin C, impregnating process and reinforced rubber articles produced using the impregnates.

What is claimed is:  
     
         1 . An impregnating and bonding agent for textiles, comprising a mixture of a resorcinol-formaldehyde precondensate A, a rubber latex B and a melamine-formaldehyde resin C.  
     
     
         2 . An impregnating and bonding agent for textiles as is claimed in  claim 1 , wherein said resorcinol-formaldehyde precondensate A and said melamine-formaldehyde resin C are present in a mass ratio (each based on solid resin) of 9:1 to 1:9.  
     
     
         3 . An impregnating and bonding agent for textiles as is claimed in  claim 1 , wherein the ratio of the sum total of the masses (solids fraction in each case) of said resins A and C to the mass of said rubber (solids fraction) in said latex B is 1:1.5 to 1:15.  
     
     
         4 . An impregnating and bonding agent for textiles as is claimed in  claim 1 , wherein the amount-of-substance ratio in said resorcinol-formaldehyde precondensate A of the building blocks derived from formaldehyde and the building blocks derived from resorcinol is 1:1.05 to 1:2.  
     
     
         5 . An impregnating and bonding agent for textiles as is claimed in  claim 1 , wherein the amount-of-substance ratio in said melamine-formaldehyde resin C between the building blocks derived from formaldehyde and from melamine is between 1.5:1 to 6:1.  
     
     
         6 . An impregnating and bonding agent for textiles as is claimed in  claim 1 , wherein said latex B contains a mass fraction of at least 5%, in the solids fraction, of building blocks derived from 2-vinylpyridine.  
     
     
         7 . An impregnating and bonding agent for textiles as is claimed in  claim 1 , wherein said latex B is a mixture of latices, at least one mass fraction of 10% being present of a latex which contains building blocks derived from vinylpyridine.  
     
     
         8 . A process for producing a textile reinforcement having enhanced adhesion to rubber, which comprises said textile reinforcement being treated with an impregnating and bonding agent as claimed in  claim 1  and subsequently dried.  
     
     
         9 . A rubber article having enhanced adhesion between a textile reinforcement and said rubber, wherein said textile reinforcement has been impregnated with an impregnating and bonding agent comprising a mixture of a resorcinol-formaldehyde precondensate A, a rubber latex B and a melamine-formaldehyde resin C and has been vulcanized with a rubber mixture into a rubber article.