Ethylene polymer compositions having improved melt strength

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

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C524S447000, C524S236000, C524S570000, C524S584000, C525S240000

Reexamination Certificate

active

06844389

ABSTRACT:
Ethylene polymer composites and concentrates utilized for their preparation are provided. The composites of the invention have increased melt strength compared to the base resin and other improved physical characteristics. The composites contain an organically modified clay and may also contain a compatibilizng agent, depending on the base resin used.

REFERENCES:
patent: 5717000 (1998-02-01), Karande et al.
patent: 6051643 (2000-04-01), Hasegawa et al.
patent: 6136908 (2000-10-01), Liao et al.
patent: 6300398 (2001-10-01), Jialanella et al.
patent: 6403231 (2002-06-01), Mueller et al.
patent: 6414070 (2002-07-01), Kausch et al.
patent: 6462122 (2002-10-01), Qian et al.
patent: 6521690 (2003-02-01), Ross et al.
patent: 6583209 (2003-06-01), Mehta et al.
patent: 6610770 (2003-08-01), Ross et al.
patent: 20010033924 (2001-10-01), Qian et al.
patent: 198 42 845 (1999-04-01), None
patent: 1 050 557 (2000-11-01), None
patent: 1 007 434 (1999-07-01), None
Wang, K. H.; Choi, M. H.; Koo, C. M.; Choi, Y. S.; Chung, I. J. Polymer 2001, 42, 9819-9826.*
Mehta, S.D., et al.: U.S. Appl. No. 09/947,836 entitled “Propylene Polymer Composites Having Improved Melt Strength.” Filing Date: Sep. 6, 2001, Projected Publication Date: Mar. 6, 2003.
Jeon, H.G., et al.: “Morphology of Polymer/Silicate Nanocomposites,”Polymer Bulletin41: 107-113 (1998).
Lim, Y.T. et al.: “Phase Morphology and Rheological Behavior of Polymer/Layered Silicate Nanocomposites.”Rheol Acta40: 220-229 (2001).
Hasegawa, N., et al.: “Preparation and Mechanical Properties of Polypropylene-Clay Hybrids Using a Maleic Anhydride Modified Polypropylene Oligomer,” Journal of Applied Polymer Science vol. 67: 87-92 (1988).
Solomon, M.J., et al.: “Rheology of Polypropylene/Clay Hybrid Materials.”Macromolecules: 34: 1864-1872 (2001).
Oya, A.: “Polypropylene-Clay Nanocomposites.”Polymer-Clay Nanocomposites: pp. 151-172: Wiley Series in Polymer Science. John Wiley & Sons, Ltd. (2000).
Zhang, Y.H., et al.: “Effect of Quaternary Ammonium-Modified Montmorillonites on Mechanical Properties of Polypropylene.”Materials Res. Society Symposium Proceedings, vol. 520, pp. 191-195. (Apr. 13-15, 1998).
Kurokawa, Y., et al.: “Structure and Properties of a Montmorillonite/Polypropylene Nanocomposite.”J. Materials Science Letter: 16: 1670-1672 (1997).
Oya, A., et al.: “Factors Controlling Mechanical Properties of Clay Mineral/Polypropylene Nanocomposite.”J. Materials Science: 35: 1045-1050 (2000).
Reichert, P., et al.: “Poly(propylene)/Organoclay Nanocomposite Formation: Influence of Compatibilizer Functionality and Organoclay Modification.”Macromol. Mater. Eng.: 275: 8-17 (2000).
Kodgire, P., et al.: “PP/Clay Nanocomposites: Effect of Clay Treatment on Morphology and Dynamic Mechanical Properties.”J. Applied Polymer Science: vol. 81: 1786-1792 (2001).
Svoboda, P., et al.: “Structure and Mechanical Properties of Polypropylene and Polystyrene/Organoclay Nanocomposites.” Dept. Chemical Engineering, Ohio State University, (9 pages).
Galgail, G., et al.: “A Rheological Study on the Kinetics of Hybrid Formation in Polypropylene Nanocomposites.”Macromolecules: 34: 852-858 (2001).
Kim, K-N, et al.: “Mixing Characteristics and Mechanical Properties of Polypropylene-Clay Composites.” Dankook University (5 pages).
Wang, K.H., et al.: “Synthesis and Characterization of Maleated Polyethylene/Clay Nanocomposites.”Polymer 42: 9819-9826 (2001).
Wang, K.H., et al.: “Effect of Aspect Ratio of Clay on Melt Extensional Process of Maleated Polyethylene/Clay Nanocomposites.”Polymer Bulletin: 46: 499-505 (2001).
Kawasumi, M., et al.: “Preparation and Mechanical Properties of Polypropylene-Clay Hybrids.”Macromolecules:30: 6333-6338 (1997).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Ethylene polymer compositions having improved melt strength does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ethylene polymer compositions having improved melt strength, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ethylene polymer compositions having improved melt strength will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3376936

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.