Preformed abrasive articles and method for the manufacture of same
AssigneeTepco Ltd.
InventorsGrahame Emerson, Michael Salyards
Life of this patent
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Abstract
A non-woven abrasive article of interlaced fibers and abrasive particles and a binder which is preformed into a predetermined three dimensional shape and a method for manufacturing the same. The abrasive article is preformed by a thermal setting the abrasive article while it is maintained in a predetermined three dimensional shape or by heating the article to its glass transition temperature and then cooling the article below the glass transition temperature while it is maintained in a predetermined three dimensional shape. This method allows the manufacture of preformed abrasive articles in various three dimensional shapes, including, for example, a bull nosed shape suitable for finishing a concavely curved surface.
Claims21
A method for manufacturing an abrasive article, comprising the steps of:
- (a) heating at least a portion of a lofty non-woven abrasive article to its plasticizing temperature;
- (b) forming the non-woven abrasive article into a predetermined three-dimensional shape;
- and
- (c) maintaining the three-dimensional formation of the non-woven abrasive article while it cools below its plasticizing temperature.
A method for manufacturing an abrasive article, comprising the steps of:
- (a) heating at least a portion of a lofty non-woven abrasive article to its glass transition temperature;
- (b) forming the non-woven abrasive article into a predetermined three-dimensional shape;
- and
- (c) maintaining the formation of the non-woven abrasive article while it cools below its glass transition temperature.
A method for manufacturing an abrasive article comprising heating a non-woven abrasive article comprising a lofty, three-dimensional web of interlaced fibers and at least one thermosetting binder and abrasive particles attached to the fibers to its deformation temperature and forming the abrasive article into a predetermined three-dimensional shape.
Dependencies are inferred from the claim text.