COATED ABRASIVES AND BACKING THEREFOR

摘要

A coated abrasive sheet material comprising (a) a backing substrate having at least one major surface, (b) a plurality of abrasive grains, (c) a binder bonding said plurality of abrasive grains to said at least one major surface of the backing substrate, wherein the backing substrate comprises paper having a basis weight of less than about 200 g/m2 which is essentially free of latex saturants and has on said at least one major surface with the plurality of abrasive grains, one or more extruded layers of a thermoplastic polymer, and a method of making the coated abrasive sheet material.