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:
Oct. 30, 2001
Filed:
Jul. 14, 1999
Applicant:
Inventors:
Christopher W. Allen, Essex Junction, VT (US);
Azzam S. Hneihen, Burlington, VT (US);
Eric S. Peterson, Idaho Falls, ID (US);
Assignee:
Bechtel BWXT Idaho, LLC, Idaho Falls, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 2/510 ;
U.S. Cl.
CPC ...
C01B 2/510 ;
Abstract
A method for making poly(dichlorophosphazene) using solid state reactants is disclosed and described. The present invention improves upon previous methods by removing the need for chlorinated hydrocarbon solvents, eliminating complicated equipment and simplifying the overall process by providing a “single pot” two step reaction sequence. This may be accomplished by the condensation reaction of raw materials in the melt phase of the reactants and in the absence of an environmentally damaging solvent.