Melt-processable aromatic polyesteramides having repeating 2,2'-substituted biphenylene radicals
CA 1305277 C · Owner: Polaroid Corporation · Inventors: Sinta, Roger F.; Gaudiana, Russell A.; Rogers, Howard G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
7389, MELT-PROCESSABLE AROMATIC POLYESTERAMIDES HAVING REPEATING 2,2'-SUBSTITUTED BIPHENYLENE RADICALS ABSTRACT OF THE DISCLOSURE, Melt-processable polyesteramides capable of exhibiting melt-phase anisotropy at temperatures of approximately 360°C and lower are disclosed. The polyesteramides contain certain essential 2 2'-, substituted biphenylene radicals and repeating units which provide ester and amide linkages. The polyesteramides exhibit melt processability suitable for processing into films and fibers.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
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