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:
Jan. 11, 2005
Filed:
Nov. 01, 2002
William M. Lamanna, Stillwater, MN (US);
Gregory D. Clark, Saint Paul, MN (US);
Richard M. Flynn, Mahtomedi, MN (US);
Zai-ming Qiu, Woodbury, MN (US);
William M. Lamanna, Stillwater, MN (US);
Gregory D. Clark, Saint Paul, MN (US);
Richard M. Flynn, Mahtomedi, MN (US);
Zai-Ming Qiu, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Photoacid generator salts comprising photoactive cationic moieties and segmented, highly fluorinated-hydrocarbon anionic moieties are disclosed which provide high photoacid strength and can be tailored for solubility and polarity. The present invention further relates to photoacid generators as they are used in photoinitiated acid-catalyzed processes for uses such as photoresists for microlithography and photopolymerization.