Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-01-02
2007-01-02
Sanders, Kriellion (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S186000, C524S275000, C524S277000, C524S447000, C501S145000
Reexamination Certificate
active
10874774
ABSTRACT:
The present invention relates to methods for the preparation of clay/polymer nanocomposites. The methods include combining an organophilic clay and a polymer to form a nanocomposite, wherein the organophilic clay and the polymer each have a peak recrystallization temperature, and wherein the organophilic clay peak recrystallization temperature sufficiently matches the polymer peak recrystallization temperature such that the nanocomposite formed has less permeability to a gas than the polymer. Such nanocomposites exhibit 2, 5, 10, or even 100 fold or greater reductions in permeability to, e.g., oxygen, carbon dioxide, or both compared to the polymer. The invention also provides a method of preparing a nanocomposite that includes combining an amorphous organophilic clay and an amorphous polymer, each having a glass transition temperature, wherein the organophilic clay glass transition temperature sufficiently matches the polymer glass transition temperature such that the nanocomposite formed has less permeability to a gas than the polymer.
REFERENCES:
patent: 3977594 (1976-08-01), Swan
patent: 4412018 (1983-10-01), Finlayson et al.
patent: 4434075 (1984-02-01), Mardis et al.
patent: 4435217 (1984-03-01), House
patent: 4517112 (1985-05-01), Mardis et al.
patent: 4810734 (1989-03-01), Kawasumi et al.
patent: 4816517 (1989-03-01), Wilkus et al.
patent: 5552469 (1996-09-01), Beall et al.
patent: 5554670 (1996-09-01), Giannelis et al.
patent: 5582638 (1996-12-01), Coutelle et al.
patent: 5645758 (1997-07-01), Kawasumi et al.
patent: 5698624 (1997-12-01), Beall et al.
patent: 5726247 (1998-03-01), Michalczyk et al.
patent: 5747560 (1998-05-01), Christiani et al.
patent: 5840796 (1998-11-01), Badesha et al.
patent: 5876812 (1999-03-01), Frisk et al.
patent: 5910523 (1999-06-01), Hudson
patent: 5962553 (1999-10-01), Ellsworth
patent: 6034163 (2000-03-01), Barbee et al.
patent: 6036765 (2000-03-01), Farrow et al.
patent: 6043300 (2000-03-01), Santhanam
patent: 6060549 (2000-05-01), Li et al.
patent: 6103817 (2000-08-01), Usuki et al.
patent: 6136908 (2000-10-01), Liao et al.
patent: 6156835 (2000-12-01), Anderson et al.
patent: 6172121 (2001-01-01), Chaiko
patent: 6225374 (2001-05-01), Vaia et al.
patent: 6262162 (2001-07-01), Lan et al.
patent: 6271297 (2001-08-01), Ishida
patent: 6271298 (2001-08-01), Powell
patent: 6380295 (2002-04-01), Ross et al.
patent: 6407155 (2002-06-01), Qian et al.
patent: 6632868 (2003-10-01), Qian et al.
patent: 6759463 (2004-07-01), Lorah et al.
patent: 6790896 (2004-09-01), Chaiko
patent: 6822035 (2004-11-01), Chaiko
patent: 6841226 (2005-01-01), Dontula et al.
patent: 6864308 (2005-03-01), Rosenthal et al.
Jordan, John W., “Organophilic Bentonites,”J. Phys. Colloid Chem., vol. 53, pp. 294-306, 1949, published by Baltimore, Williams & Wilkins Co. Feb. 1949.
Kawasumi, M., et al., “Liquid Crystalline Composite Based on a Clay Mineral,”Mol. Cryst. Liq. Cryst., vol. 281, pp. 91-103, 1996, published by Gordon and Breach Science Publishers SA, printed in Malaysia. Apr. 11, 1997.
Kawasumi, M., et al., “Preparation and Mechanical Properties of Polypropylene—Clay Hybrids,”Macromolecules, vol. 30, pp. 6333-6338, 1997, published by American Chemical Society. Oct. 6, 1997.
Hasegawa, N., et al., “Preparation and Mechanical Properties of Polypropylene-Clay Hybrids Using a Maleic Anhydride-Modified Polypropylene Oligomer,”J. Appl. Poly. Sci., vol. 67, pp. 87-92, 1998, published by John Wiley & Sons, Inc. Jan. 3, 1998.
Foley & Lardner LLP
Sanders Kriellion
UChicago Argonne LLC
LandOfFree
Polyolefin nanocomposites does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyolefin nanocomposites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyolefin nanocomposites will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3797787