Abrasive article, method of making same, and abrading apparatus

Details Abrasive article, method of making same, and abrading apparatus Abrasive article, method of making same, and abrading apparatus

B - Operations, Transporting

24

D

B24D 9/08 (2006.01) A44B 18/00 (2006.01) B24D 11/00 (2006.01) B29C 43/22 (2006.01) B29C 59/02 (2006.01) B29C 55/06 (2006.01)

Patent

CA 2181044

An abrasive sheet article is disclosed, including a substrate having first and second major surfaces, a coated abrasive on the first major surface, and a plurality of hooking stems on the second major surface. The coated abrasive may comprise a plurality of precisely shaped composites comprising a plurality of abrasive grains dispersed in a binder. The hooking stems are adapted to hook engaging structures on an opposed surface to releasably affix the abrasive sheet member to the surface. A method for making such abrasive articles is also disclosed, including several illustrative variations of the inventive method. Also disclosed is a back-up pad for supporting such an abrasive article during abrading. The back-up pad includes a support portion, such as a polymeric backing, and an engaging portion, such as a loop material, for engaging hooking stems projecting from file abrasive article.

Article abrasif en feuilles comprenant un substrat présentant deux surfaces principales dont la première est revêtue d'un abrasif et la seconde d'une multitude de tiges d'accrochage. L'abrasif du revêtement peut comporter divers éléments composites de forme déterminée faits de grains abrasifs dispersés dans un liant. Les tiges d'accrochage correspondent aux crochets d'une surface opposée dans lesquels elles s'engagent réversiblement. Est également exposé un procédé de fabrication de tels abrasifs illustré par ses différentes variantes. Le patin-support comporte une partie doublage, p. ex. en polymère, et une partie d'accrochage, p. ex. un matériau en boucles, qui saisit les tiges d'accrochage saillant de l'article abrasif.

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