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:
Sep. 05, 2006
Filed:
Mar. 09, 2004
Ahmad A. Naiini, East Greenwich, RI (US);
Ilya Rushkin, Walpole, MA (US);
Richard Hopla, Cranston, RI (US);
Donald Racicot, Providence, RI (US);
Ahmad A. Naiini, East Greenwich, RI (US);
Ilya Rushkin, Walpole, MA (US);
Richard Hopla, Cranston, RI (US);
Donald Racicot, Providence, RI (US);
Arch Specialty Chemicals, Inc., Norwalk, CT (US);
Abstract
New photosensitive PBO precursor polymers which contain diazoquinone moieties attached to its backbone and in which all amino end groups are converted into amide groups. The photosensitive formulation based on the disclosed PBO precursor polymers have good imaging and mechanical properties as well as superior shelf life stability. Photosensitive polybenzoxazole precursor polymers having (sulfon)amide end groups (with or without attached diazoquinone groups) can be formulated into photosensitive compositions with diazoquinone photoactive compounds which lack benzylic hydrogens on the backbone to yield compositions producing films significantly lighter in color after curing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile