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:
Dec. 02, 2014
Filed:
Aug. 24, 2012
Sajal Das, Bedminster, NJ (US);
Vilas M. Chopdekar, Edison, NJ (US);
Megan B. Casey, Lehighton, PA (US);
Sajal Das, Bedminster, NJ (US);
Vilas M. Chopdekar, Edison, NJ (US);
Megan B. Casey, Lehighton, PA (US);
Lonza Group, Ltd., Basel, CH;
Abstract
Polyimide oligomers of the general formula:M-(Z—Y—X—Y—Z)-Mwherein n is an integer of 1 to 20; X comprises an aromatic diamine containing 2-4 aryl moieties, each of which contains 0-4 substituents; Z is independently the same as X or is a different aromatic diamine containing 1-4 aryl moieties, each of which contains 0-4 substituents; Y comprises an aromatic dianhydride containing 1-4 aryl moieties, each of which contains 0-4 substituents; and M is independently the same as Y or is a substituted or unsubstituted anhydride, a substituted or unsubstituted dianhydride, a substituted or unsubstituted bisimide, or a substituted or unsubstituted monomeric or oligomeric phthalonitrile.