B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 11/00 (2006.01) B24D 3/26 (2006.01) B24D 3/32 (2006.01) B24D 13/14 (2006.01)
Patent
CA 2427874
The present invention provides a flexible abrasive product comprised of an open cell foam backing (12), a foraminous barrier coating (13) and a shaped foraminous abrasive coating (33). The flexible abrasive article (31) of the invention is made by applying a curable barrier coating over an open cell foam backing, curing the curable barrier coating to provide a foraminous barrier coating (32) having openings therethrough corresponding to openings in the open cell foam, applying a coating composition comprising a curable binder and abrasive particles over the foraminous barrier coating (32), imparting a textured surface to the coating composition with a production tool (11) which has a textured surface which is the inverse of the textured surface of the abrasive coating and to which production tool (11) textured surface any coating composition coated over an opening of the first major surface may adhere, at least partially curing the binder, and separating the production tool (11) from the textured surface to provide the shaped foraminous abrasive coating.
La présente invention concerne un produit abrasif souple comportant un support de mousse à alvéoles ouverts (12), un couche barrière perforée (32) et une couche abrasive perforée formée (33). Le produit abrasif souple (31) de l'invention est fabriqué par l'application d'une couche barrière durcissable sur un support de mousse à alvéoles ouverts, la cuisson de la couche barrière durcissable pour obtenir une couche barrière perforée (32) présentant des orifices à travers correspondant aux orifices dans la mousse à alvéoles ouverts, l'application d'une composition de revêtement comportant un liant durcissable et des particules abrasives sur la couche barrière perforée (32), imprimant une surface structurée à la composition de revêtement au moyen d'un outil de fabrication (11) qui présente une surface structurée qui est l'inverse de la surface structurée du revêtement abrasif et à laquelle surface de l'outil de fabrication (11) une composition de revêtement quelconque revêtu sur un orifice de la première surface principale peut adhérer, durcissant au moins partiellement le liant et séparant l'outil de fabrication (11) de la surface texturée pour obtenir une couche abrasive perforée.
Annen Michael J.
Royce Stacee L.
Schutz James W.
3m Innovative Properties Company
Smart & Biggar
LandOfFree
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