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. 08, 2013
Filed:
Aug. 07, 2009
Applicants:
Yong Zhang, Carmel, IN (US);
David Huang, Westfield, IN (US);
LU Sun, Indianapolis, IN (US);
Inventors:
Assignee:
Praxair S.T. Technology, Inc., North Haven, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B24B 1/00 (2006.01); B24D 3/00 (2006.01); C08G 18/00 (2006.01); C08G 18/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polyurethane composition based on a certain polyether and polyester prepolymer reaction mixture, wherein the composition is utilized in manufacturing chemical mechanical polishing/planarizing (CMP) pads. The CMP pads have low rebound and can dissipate irregular energy as well as stabilize polishing to yield improved uniformity and less dishing of the substrate.