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:
May. 06, 2014
Filed:
Sep. 03, 2010
Dennis G. Peiffer, Annandale, NJ (US);
Barbara Carstensen, Annandale, NJ (US);
Richard S. Polizzotti, Milford, NJ (US);
Arnold Lustiger, Edison, NJ (US);
David C. Dalrymple, Bloomsbury, NJ (US);
Walter T. Matuszek, Easton, PA (US);
Dennis G. Peiffer, Annandale, NJ (US);
Barbara Carstensen, Annandale, NJ (US);
Richard S. Polizzotti, Milford, NJ (US);
Arnold Lustiger, Edison, NJ (US);
David C. Dalrymple, Bloomsbury, NJ (US);
Walter T. Matuszek, Easton, PA (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.