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US PATENT #5777292:    Materials having high electrical conductivity at room temperatures and methods for making same.

US PATENT #6552883:    Devices comprising thin films having temperature- independent, high electrical conductivity, and methods of making same.

US Patent 5777292

Inventor(s):            Grigorov; Leonid N. , Moscow, Russian Federation
                             Shambrook; Kevin P. , Forestville, CA

Applicant(s):          Room Temperature Superconductors Inc., Sebastopol, CA

Issued/Filed Dates:  July 7, 1998 / Feb. 1, 1996

Application Number: US1996000595305

IPC Class:               H01B 001/14; H01B 001/20; H01B 001/06; C08J 003/28 

Class:                      204/157.15;252/500; 252/510; 204/157.6; 204/157.63; 522/099;522/148

Field of Search:       252/500, 502, 510, 511 204/157.15,157.6,157.61,157.63 522/148,99  

Priority Number(s):   US1996000595305                     [Click here to view entire document]

Abstract:                  A method is disclosed for producing a polymer material whose room temperature conductivity exceeds 10⁶ S/cm. In a preferred embodiment the material is produced in the form of a film having thickness less than 100 µm. Conduction takes place through threads passing through the film which is otherwise a dielectric. The film is produced by first depositing a macromolecular polymer substance on a substrate. During preparation, the substance must be in a viscose liquid state. Stable free electrons (polarons) are then created by ionizing the substance. This is assisted by exposure to UV radiation and the presence of strong polar groups in the polymer. Various techniques, such as applying a strong electric field, are then used to join the polarons together into conducting threads within the medium. To stabilize the conductivity, the medium is then solidified by cooling it below its glassing point or inducing cross-linking between the macromolecules.

Attorney, Agent, or Firm: Pillsbury Madison & Sutro LLP;
Primary/Assistant Examiners:Gorgos; Kathryn L.; Noguerola; Alex

US References: None (No patents reference this one)

Scientific Claims; Page 2

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