Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate
2007-03-16
2010-06-29
Vo, Hai (Department: 1794)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
C428S319700, C428S319900, C428S317900, C428S316600, C428S318600
Reexamination Certificate
active
07744993
ABSTRACT:
The present invention provides for a polymer composite foam with a treated filler and methods for making the same. The polymer composite foam includes a polymer capable of being formed into a polymeric foam and a treated filler, wherein the polymer defines a plurality of cells dispersed therethrough and the treated filler is dispersed throughout the polymer. The filler is treated by techniques which exfoliate, delaminate or intercalate the filler particles into individual micro and/or nano size particulates and platelets. Ideally, the treated filler has a median particle size ranging from about 0.1 nm-10 μm. The treated filler enhances the rigidity, barrier properties, heat deflection temperature, nucleation characteristics, fire retardant characteristics and impact properties of the foam. The products fabricated from the polymer composite foam include containers, cups, sleeves, bags, plates, bowls, protective packaging, boards, sheets, void fillers, storageware, dinnerware and cookware. The present invention also provides for methods of fabricating the polymer composite foam.
REFERENCES:
patent: 5876812 (1999-03-01), Frisk et al.
patent: 6117541 (2000-09-01), Frisk
patent: 6232354 (2001-05-01), Tan
patent: 6403231 (2002-06-01), Mueller et al.
patent: 6414070 (2002-07-01), Kausch et al.
patent: 6586483 (2003-07-01), Kolb et al.
patent: 6759446 (2004-07-01), Lee et al.
patent: 6790896 (2004-09-01), Chaiko
patent: 6958860 (2005-10-01), Dontula et al.
patent: 2001/0033924 (2001-10-01), Qian et al.
patent: 2002/0156171 (2002-10-01), Drewniak et al.
patent: 2002/0190440 (2002-12-01), Wilson
patent: 2002/0198272 (2002-12-01), Hayashi et al.
patent: 2003/0033924 (2003-02-01), Glover
patent: 2003/0176537 (2003-09-01), Chaiko
patent: 2003/0205832 (2003-11-01), Lee et al.
patent: 2005/0112356 (2005-05-01), Rynd et al.
patent: 2007/0196644 (2007-08-01), Wu et al.
patent: 2007/0197710 (2007-08-01), Wu et al.
patent: WO97/31053 (1997-08-01), None
patent: WO03/082966 (2003-10-01), None
patent: WO2004/063259 (2004-07-01), None
Alexandre et al., “Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials,” Materials Science and Engineering Reports, vol. 28, No. 1-2, pp. 1-63, Jun. 2000.
Cloisite Product Literature, downloaded from http://www.nanoclay.com/ on Jan. 30, 2009.
Vasile et al., Handbook of Polyolefins, 1993, Marcel Dekker, Inc., pp. 791-793.
Zhang et al., “Pet-clay hybrids with improved tensile strength,” Mar. 2003, Materials Letters, North Holland Publishing Company, Amsterdam, NL, pp. 1858-1862.
U.S. Appl. No. 12/066,593, filed Mar. 12, 2008, Dobreski et al.
Nanocor PGW product literature, accessed from the Internet from http://www.nanocor.com/tech—sheets/G105.pdf on Mar. 16, 2009.
Dobreski David V.
Wu Wen Pao
Baker & Botts LLP
Pactiv Corporation
Vo Hai
LandOfFree
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