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.:

US 7862856 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 04, 2011

Filed:

Mar. 08, 2007
Applicants:

Thuy D. Dang, Centerville, OH (US);

Narayanan Venkatasubramanian, Beavercreek, OH (US);

Sandra J. Fries-carr, Beavercreek, OH (US);

Kevin J. Wiacek, Centerville, OH (US);

Inventors:

Thuy D. Dang, Centerville, OH (US);

Narayanan Venkatasubramanian, Beavercreek, OH (US);

Sandra J. Fries-Carr, Beavercreek, OH (US);

Kevin J. Wiacek, Centerville, OH (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C 16/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a method for making a polymer dielectric composition incorporating diamondoids or diamond-like hydrocarbon units. The method includes forming a polymer solution from the cardo-diol 9,9-bis(4-hydroxyphenyl)fluorene and a diacid chloride, casting a freestanding thin polyester film from the polymer solution, and metallizing the polyester film with an evaporated Al layer to form the dielectric composition. The diacid chloride may be derived from trans-1,4-cyclohexanedicarboxylic acid; 1,3-adamantanedicarboxylic acid; or 4,9-diamantanedicarboxylic acid.


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