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:
Aug. 10, 1999
Filed:
Mar. 06, 1997
Applicant:
Inventors:
John D Lee, Potomac, MD (US);
Gilbert F Lee, Greenbelt, MD (US);
Bruce T Hartmann, Silver Spring, MD (US);
Harold C Wendt, Fredericksburg, VA (US);
John J Richardson, Jr, Annapolis, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524497 ; 524492 ; 524493 ; 524494 ; 524589 ; 524590 ; 528 44 ; 528 68 ;
Abstract
A shock resistant dielectric material comprising TiO.sub.2 particles disped in a matrix material which is (1) the polyurea reaction product of a poly(tetramethylene ether)glycol-di-p-aminobenzoate prepolymer and an aromatic diisocyanate or (2) a blend of the polyurea reaction product and a cyanate ester homopolymer of bis(4-cyanatophenyl)-1,1-ethane.