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:
Jun. 14, 2005
Filed:
Apr. 26, 2002
Naiyong Jing, Woodbury, MN (US);
Zhongxing Zhang, Woodbury, MN (US);
Zai-ming Qiu, Woodbury, MN (US);
Naiyong Jing, Woodbury, MN (US);
Zhongxing Zhang, Woodbury, MN (US);
Zai-Ming Qiu, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The present invention relates to optical elements comprising fluorochemical surface treatments having the general structure Rf-[G](CH)—X wherein Rf is a fluorinated alkyl group, G is a divalent linking group selected from oxygen (—O—) and sulfonamido (—SOR—), m is an integer ranging from 0 to 1, n is an integer ranging from 1 to 24, and X is polar group or polar group containing radical. The invention further relates to materials such as retroreflective sheetings, pavement markings and beaded projection screens comprising a binder and the surface treated optical elements.