Paper-based sheet and abrasion-resistant laminates

Details Paper-based sheet and abrasion-resistant laminates Paper-based sheet and abrasion-resistant laminates

D - Textiles, Paper

21

H

D21H 27/28 (2006.01) B24D 11/02 (2006.01) B44C 5/04 (2006.01) D21H 17/69 (2006.01)

Patent

CA 2214015

A paper-based sheet comprising abrasive particles which, in use, impart high abrasion resistance thereto is disclosed. The sheet comprises abrasive particles coated with a non-abrasive material, particularly a polymer. The particles are selected from alumina, silica, boron nitride, silicon carbide, titanium carbide, tungsten carbide, zirconium oxide, cerium oxide, glass and ceramic particles or mixtures thereof. Laminates comprising said sheet and methods for making such sheets and laminates are also disclosed.

L'invention concerne une feuille papetière comportant des particules abrasives lui conférant à l'usage une résistance à l'abrasion élevée. Elle se caractérise par le fait qu'elle comporte des particules abrasives enrobées dans une matière non abrasive, en particulier dans un polymère. Selon l'invention les particules sont choisies parmi les particules d'alumine, de silice, du nitrure de bore, du carbure de silicium, du carbure de titane, du carbure de tungstène, de l'oxyde de zirconium, de l'oxyde de cérium, du verre, de céramique ou leurs mélanges. L'invention concerne aussi les stratifiés la comportant ainsi que les procédés de fabrication des feuilles et des stratifiés.

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