The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2015
Filed:
Dec. 28, 2010
William D. Joseph, Maplewood, MN (US);
Gary M. Palmgren, Lake Elmo, MN (US);
Stephen C. Loper, Eden Prairie, MN (US);
Christopher N. Loesch, Hastings, MN (US);
William D. Joseph, Maplewood, MN (US);
Gary M. Palmgren, Lake Elmo, MN (US);
Stephen C. Loper, Eden Prairie, MN (US);
Christopher N. Loesch, Hastings, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Polishing pads containing a phase-separated polymer blend, and methods of making and using such pads in a polishing process. In one exemplary embodiment, the polishing pads include a multiplicity of polishing elements integrally formed in a sheet. In another exemplary embodiment, the polishing elements are bonded to a support layer, for example by thermal bonding. In certain embodiments, the polishing pad may additionally include a compliant layer affixed to the support layer, and optionally, a polishing composition distribution layer.