James W. Schutz - Woodbury MN, US Stacee L. Royce - St Paul MN, US Michael J. Annen - Hudson MN, US Jon R. Pieper - Lindstrom MN, US Jeffrey D. Sheely - Stillwater MN, US
Assignee:
3M Innovative Properties Company - Saint Paul MN
International Classification:
B24D003/18
US Classification:
451534, 451537
Abstract:
The present invention provides a flexible abrasive product comprised of an open cell foam backing, a foraminous barrier coating and a shaped foraminous abrasive coating. The flexible abrasive article 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 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, imparting a textured surface to the coating composition with a production tool which has a textured surface which is the inverse of the textured surface of the abrasive coating and to which production tool 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 from the textured surface to provide the shaped foraminous abrasive coating.
Flexible Abrasive Product And Method Of Making And Using The Same
Michael Annen - Hudson WI, US Jon Pieper - Lindstrom MN, US Jeffrey Sheely - Stillwater MN, US
International Classification:
B24B001/00
US Classification:
451041000, 451526000, 051297000
Abstract:
The present invention provides a flexible abrasive product comprised of an open cell foam backing, a foraminous barrier coating and a shaped foraminous abrasive coating. The flexible abrasive article 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 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, imparting a textured surface to the coating composition with a production tool which has a textured surface which is the inverse of the textured surface of the abrasive coating and to which production tool 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 from the textured surface to provide the shaped foraminous abrasive coating.
Flexible Abrasive Product And Method Of Making And Using The Same
James Schutz - Woodbury MN, US Stacee Royce - St. Paul MN, US Michael Annen - Hudson WI, US Jon Pieper - Lindstrom MN, US Jeffrey Sheely - Stillwater MN, US
International Classification:
B24D011/00
US Classification:
051297000, 451028000
Abstract:
The present invention provides a flexible abrasive product comprised of an open cell foam backing, a foraminous barrier coating and a shaped foraminous abrasive coating. The flexible abrasive article 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 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, imparting a textured surface to the coating composition with a production tool which has a textured surface which is the inverse of the textured surface of the abrasive coating and to which production tool 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 from the textured surface to provide the shaped foraminous abrasive coating.
Abrasive Articles And Methods Of Making And Using Same
Scott R. Culler - Burnsville MN Gregory A. Berg - Lindstrom MN Jon R. Pieper - Lindstrom MN Richard M. Olson - Stillwater MN
Assignee:
Minnesota Mining and Manufacturing Company - St. Paul MN
International Classification:
B24D 302
US Classification:
51295
Abstract:
An abrasive article is presented which includes a backing having a front and back surface, and an abrasive coating bonded to the front surface of the backing. The abrasive coating comprises a homogeneous mixture of a plurality of abrasive particles, a binder and a grinding aid. The binder serves to bond the abrasive coating to the backing and the grinding aid comprises at least 1% by weight of the abrasive coating, but not more than 50% by weight. It is preferred that the abrasive coating consists essentially of a plurality of precisely shaped abrasive composites. Methods of making and using the abrasive articles are also presented.
John Pieper (1989-1993), Dave Stickney (1977-1981), Stephen Li (1984-1987), Kaipo Souza (1968-1972), Adrian Vockeroth (1966-1968), Laddie Watson (1966-1970)