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:
Feb. 23, 2010
Filed:
Apr. 03, 2007
Applicants:
Hui Chin, Katonah, NY (US);
Matthew E. Gande, Norwalk, CT (US);
Andrew J. Leggio, Franklin Square, NY (US);
Inventors:
Hui Chin, Katonah, NY (US);
Matthew E. Gande, Norwalk, CT (US);
Andrew J. Leggio, Franklin Square, NY (US);
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/35 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are electret materials with outstanding thermal and charge stability. The electret materials comprise a melt blend of a thermoplastic polymer and one or more hindered hydroxylamine ester compounds that comprise at least one moiety of the formula I where R' is a monoacyl or diacyl radical; R-Rare each C-Calkyl; and