Impregnated abrasive support and abrasive article produced therefrom

Abstract

The invention relates to an abrasive support comprising a support material composed of at least one wet- or dry-laid nonwoven based on natural and/or synthetic fibers. The support material is impregnated with a thermally curable polymer solution on one side and with an aqueous polymer dispersion on the opposite side. The thermally curable polymer solution penetrates at least 50% and at most 80% of the thickness of the support material, while the aqueous polymer dispersion penetrates at least 25% and at most 50% of the thickness of the support material.

1 . Abrasive-material carrier comprising a carrier material made of at least one wet-laid or dry-laid non-woven material based on natural and/or synthetic fibres, wherein the carrier material is impregnated on one side with a thermally curable polymer solution and on the other side with an aqueous polymer dispersion, the thermally curable polymer solution penetrating the thickness of the carrier material by at least 50% and at most 80%, while the aqueous polymer dispersion penetrates the thickness of the carrier material by at least 25% and at most 50%. 
     
     
         2 . Abrasive-material carrier according to  claim 1 , wherein the carrier material is a paper. 
     
     
         3 . Abrasive-material carrier according to  claim 1 , wherein the carrier material is a dry-laid staple fibre non-woven material. 
     
     
         4 . Abrasive-material carrier according to  claim 1 , wherein the carrier material is a melt-blown non-woven material. 
     
     
         5 . Abrasive-material carrier according to  claim 1 , wherein the carrier material is a spunbonded material. 
     
     
         6 . Abrasive-material carrier according to  claim 1 , wherein the carrier material consists of a plurality of identical layers of non-woven material. 
     
     
         7 . Abrasive-material carrier according to  claim 1 , wherein the carrier material consists of a plurality of different layers of non-woven material. 
     
     
         8 . Abrasive-material carrier comprising at least two layers of a carrier material according to  claim 1 , wherein the side of the at least one layer impregnated with the aqueous polymer dispersion is connected to the side of the following layer impregnated with the thermally crosslinkable polymer solution. 
     
     
         9 . Abrasive-material carrier according to  claim 1 , wherein a barrier coat is applied to the side impregnated with the polymer dispersion. 
     
     
         10 . Abrasive-material carrier according to  claim 1 , wherein the abrasive-material carrier is calendered. 
     
     
         11 . Abrasive article, comprising an abrasive-material carrier according to  claim 1 , wherein the abrasive-material carrier is provided with an abrasive coating on the side impregnated with the polymer dispersion. 
     
     
         12 . Abrasive article according to  claim 11 , wherein a barrier coat is arranged on the side of the abrasive-material carrier impregnated with the polymer dispersion and the abrasive-material carrier is provided with an abrasive coating on the side of the barrier coat that is on the outside.