B - Operations – Transporting – 24 – D
Patent
B - Operations, Transporting
24
D
B24D 11/00 (2006.01) B24D 3/28 (2006.01) B24D 11/02 (2006.01) B24D 18/00 (2006.01) B29C 41/04 (2006.01) B29C 41/20 (2006.01) B29C 53/58 (2006.01)
Patent
CA 2163648
Methods for preparing flexible, endless, seamless substrates suitable for use in making abrasive articles, and abrasive articles, are presented. One method includes inserting a fibrous material adjacent an interior surface of a drum. A composition comprising an organic binder precursor material is then placed in the drum, and the drum is rotated such that centrifugal forces distribute the composition, including the organic binder precursor material, about the fibrous material. The composition is exposed to conditions sufficient to solidify the organic binder precursor material such that an endless, flexible, seamless substrate is formed having an outer surface formed adjacent the interior surface of the drum, an inner surface opposite the outer surface and the fibrous material embedded therein.
L'invention concerne des procédés de préparation de substrats sans soudure, sans fin, souples conçus pour être utilisés dans la fabrication d'articles abrasifs, et les articles abrasifs obtenus. Un procédé consiste à insérer un matériau fibreux à côté de la surface interne d'un tambour. Une composition comprenant une matière précurseur d'un liant organique est ensuite placée dans le tambour, et ce tambour tourne de façon que les forces centrifuges répartissent la composition, y compris la matière précurseur de liant organique, uniformément autour du matériau fibreux. La composition est exposée à des conditions suffisantes permettant de solidifier la matière précurseur de liant organique de façon à obtenir un substrat sans soudure, souple, sans fin, possédant une surface externe formée à côté de la surface interne du tambour, la surface interne étant opposée à la surface externe et le matériau fibreux étant noyé dans le liant.
Krishnan Subramanian
Schneider Michael J.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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