Abrasive buffing articles

Abstract

The present disclosure relates to abrasive buffing articles (“abrasive buffs”) and methods of making the same. The abrasive buffs include a substrate, such as a fabric, that has been impregnated with an abrasive polymeric composition that includes abrasive particles, such as primary abrasive particles and/or abrasive aggregates, such as spray dried abrasive aggregates. The abrasive buffs are flexible and capable of conforming to and effectively abrading, polishing, and buffing workpieces possessing a complex geometry.

What is claimed is: 
     
         1 . An abrasive buff comprising:
 a plurality of woven fabric layers; and   an abrasive composition fixed to each of the fabric layers,   wherein each of the fabric layers comprises a plurality of yarns,   wherein the abrasive composition is disposed at least partially within the yarns, and   wherein the abrasive composition comprises:
 a polymeric binder and 
 a plurality of abrasive particles dispersed in the polymeric binder. 
   
     
     
         2 . The abrasive buff of  claim 1 , wherein the abrasive composition comprises:
 15 wt % to 90 wt % of the abrasive buff.   
     
     
         3 . The abrasive buff of  claim 1 , wherein fabric layers comprise:
 10 wt % to 85 wt % of the abrasive buff.   
     
     
         4 . The abrasive buff of  claim 1 , wherein the woven fabric layer comprises a woven cloth. 
     
     
         5 . The abrasive buff of  claim 4 , wherein the woven cloth comprises a thread count in a range from 50 to 300 threads per inch in the warp direction. 
     
     
         6 . The abrasive buff of  claim 4 , wherein the woven cloth comprises a thread count in a range from 50 to 300 threads per inch in the weft direction. 
     
     
         7 . The abrasive buff of  claim 4 , wherein woven cloth comprises a ratio of warp thread count to weft thread count ranging from 1:1.8 to 1:1. 
     
     
         8 . The abrasive buff of  claim 4 , wherein the woven cloth comprises fibers having a linear density in a range of 0.1 denier to 500 denier. 
     
     
         9 . The abrasive buff of  claim 1 , wherein the fabric comprises a weight of grams per square meter (“GSM”) in a range of 100 to 800 GSM. 
     
     
         10 . The abrasive buff of  claim 1 , wherein the fabric comprises synthetic fibers, natural fibers, or a combination thereof. 
     
     
         11 . The abrasive buff of  claim 1 , wherein the woven fabric layer is coated with the abrasive composition on a first side. 
     
     
         12 . The abrasive buff of  claim 11 , wherein the woven fabric layer is further coated with the abrasive composition on a second side. 
     
     
         13 . The abrasive buff of  claim 1 , wherein the abrasive composition comprises:
 20 wt % to 90 wt % of abrasive grains and   10 wt % to 80 wt % of a polymeric binder composition.   
     
     
         14 . The abrasive buff of  claim 13 , wherein the abrasive composition further comprises:
 0.1 wt % to 10 wt % of a rheology modifier.   
     
     
         15 . The abrasive buff of  claim 14  wherein the rheology modifier comprises a cellulose compound, a fumed silica, or a combination thereof. 
     
     
         16 . The abrasive buff of  claim 12 , wherein the abrasive composition is disposed through the fabric between the yarns from the first side of the fabric to the second side of the fabric. 
     
     
         17 . The abrasive buff of  claim 12 , wherein the abrasive composition is disposed between the fibers of the woven fabric layer. 
     
     
         18 . The abrasive buff of  claim 1 , wherein the polymeric binder is flexible. 
     
     
         19 . The abrasive buff of  claim 1 , wherein the polymeric binder has a glass transition temperature (Tg) of not greater than 10° C. 
     
     
         20 . An abrasive buff comprising:
 a plurality of fabric layers; and   an abrasive composition fixed to each of the fabric layers,   wherein the abrasive composition is disposed at least partially within each of the fabric layers,   wherein the abrasive composition comprises a polymeric binder and a plurality of abrasive particles dispersed in the polymeric binder, and   wherein the polymeric binder the polymeric binder has a glass transition temperature (Tg) of not greater than 10° C.