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US 5,645,471 AGranted
Method of texturing a substrate using an abrasive article having multiple abrasive natures
AssigneeMinnesota Mining and Manufacturing Company
InventorDarlene N. Strecker
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method of texturing a rigid disk for magnetic media applications, using a coated abrasive article comprising a backing having at least two regions of abrasive coating bonded to one side of the backing. The at least two regions of abrasive coating have different abrasive natures.
Claims12
A method of texturing a surface of a rigid disk to simultaneously impart a first area on said surface having a first surface finish and a second area on said surface having a second surface finish, said method comprising the steps of:
- (a) contacting said surface with a coated abrasive article comprising a first region having a first abrasive nature and a second region having a second abrasive nature, both regions bonded to a backing, said first abrasive nature being different than said second abrasive nature;
- and
- (b) moving at least one of said coated abrasive article or said rigid disk with respect to each other under conditions to impart said first and second surface finishes.
Dependencies are inferred from the claim text.