Binding agent mixture and the use thereof

Abstract

The invention relates to a binder mixture based on a pulverulent mix with non-thermoreactive phenolic resin and one or more thermoreactive condensation products, from the group consisting of phenolic resins, amino resins and epoxy resins, and a powder coating material or recycled powder coating material. The mixture can be used as a binder for textile nonwovens, moulding compounds, refractory materials, abrasive materials and friction materials, and also in the foundry industry.

1 . Binder mixture based on a pulverulent mix of a non-thermoreactive phenolic resin and one or more thermoreactive condensation products from the group consisting of phenolic resins, amino resins and epoxy resins, characterized in that it further comprises powder coating material.  
     
     
         2 . Binder mixture according to  claim 1 , characterized in that the powder coating material is a recycled powder coating material.  
     
     
         3 . Binder mixture according to  claim 1  or  2 , characterized in that the power coating material is a reactive coating powder based on epoxy resins and/or polyester resins.  
     
     
         4 . Binder mixture according to  claim 3 , characterized in that the powder coating material further comprises reactive coating powders based on polyurethane and/or acrylic resins.  
     
     
         5 . Binder mixture according to one or more of  claims 1  to  4 , characterized in that it comprises the non-thermoreactive phenolic resin with the thermoreactive condensation product in a weight ratio of from 30:70 to 90:10.  
     
     
         6 . Binder mixture according to one or more of  claims 1  to  5 , characterized in that it comprises the mix of non-thermoreactive phenolic resin with the thermoreactive condensation product and the powder coating material in a weight ratio of from 90:10 to 50:50.  
     
     
         7 . Binder mixture according to one or more of  claims 1  to  6 , characterized in that it comprises, as thermoreactive phenolic resins, alkalinically condensed reaction products from the condensation of bisphenols with formaldehyde.  
     
     
         8 . Use of the binder mixture according to one or more of  claims 1  to  7  as a binder in the production of textile nonwovens.  
     
     
         9 . Use of the binder mixture according to one or more of  claims 1  to  7  as a binder for moulding compounds.  
     
     
         10 . Use of the binder mixture according to one or more of  claims 1  to  7  as a binder for refractory materials.  
     
     
         11 . Use of the binder mixture according to one or more of  claims 1  to  7  as a binder for abrasive materials.  
     
     
         12 . Use of the binder mixture according to one or more of  claims 1  to  7  as a binder for friction linings.  
     
     
         13 . Use of the binder mixture according to one or more of  claims 1  to  7  as a binder in the foundry industry.