POLYMER NANOCOMPOSITES AND METHODS OF PREPARATION

Title:

POLYMER NANOCOMPOSITES AND METHODS OF PREPARATION

Document Type and Number:

WIPO Patent Application WO2002079301

Kind Code:

A3

Abstract:

High-use temperature, lightweight polymer/inorganic nanocomposite materials are described having enhanced thermal stability and performance characteristics. These materials are made possible by new methods for synthesizing composite materials that enhance the thermal stability of the nanocomposite systems from 100-150 DEG C to over 450 DEG C. These materials and techniques for their formation are enabled at least in part by the use of polar organic phthalonitrile monomers and oligomers that can exfoliate layered phyllosilicates, such as smectite clays, in percentages greater than 10 % inorganic by weight. This approach offers a solvent-free direct melt intercalation technique that greatly reduces the cost of processing nanocomposites. Additionally, the use of unmodified phyllosillicates overcomes temperature limitations of prior art, which uses organically-modified layered silicates. The new technology provides hitherto unobtainable thermal stability and performance characteristics, and has numerous applications in the automotive, aerospace, electronic and marine industries.

Inventors:

CONROY JEFFREY L (US)
PICHE JOSEPH W (US)
GLATKOWSKI PAUL J (US)
LANDIS DAVID H JR (US)

Application Number:

PCT/US2002/009145

Publication Date:

February 12, 2004

Filing Date:

March 26, 2002

Export Citation:

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Assignee:

EIKOS INC (US)
CONROY JEFFREY L (US)
PICHE JOSEPH W (US)
GLATKOWSKI PAUL J (US)
LANDIS DAVID H JR (US)

International Classes:

C08F2/44; C08F291/00; C08F292/00; C01B33/40; C08K3/34; (IPC1-7): C08G63/44; C08K3/34; C08K9/00

Foreign References:

US5849830A	1998-12-15
US5292854A	1994-03-08
US6124365A	2000-09-26
US5939508A	1999-08-17

Other References: