Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2003-10-10
2008-10-21
Harlan, Robert D. (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S351000, C526S160000, C526S943000
Reexamination Certificate
active
07439312
ABSTRACT:
Branched crystalline polypropylene compositions and methods for the preparation of branched crystalline polypropylene compositions are provided. For example, described herein is a process of preparing a branched crystalline polypropylene composition that includes combining two or more different metallocene catalyst compounds with a polymerization medium that includes propylene, for a time sufficient to provide branched crystalline polypropylene that has from 0.0 wt % to 2.0 wt % ethylene and a heat of fusion of 70 J/g or more.
REFERENCES:
patent: 3878129 (1975-04-01), Rosback
patent: 3929669 (1975-12-01), Rosback et al.
patent: 3998901 (1976-12-01), Neuzil et al.
patent: 4028428 (1977-06-01), Neuzil et al.
patent: 4934580 (1990-06-01), Sutton
patent: 4987193 (1991-01-01), Gotoh
patent: 5272236 (1993-12-01), Lai et al.
patent: 5296434 (1994-03-01), Karl et al.
patent: 5350817 (1994-09-01), Winter et al.
patent: 5350819 (1994-09-01), Shaffer
patent: 5418065 (1995-05-01), Fujiki et al.
patent: 5418308 (1995-05-01), Harvie
patent: 5422185 (1995-06-01), Egami et al.
patent: 5504171 (1996-04-01), Etherton et al.
patent: 5514761 (1996-05-01), Etherton et al.
patent: 5516848 (1996-05-01), Canich et al.
patent: 5539056 (1996-07-01), Yang et al.
patent: 5571867 (1996-11-01), Luvinh et al.
patent: 5635573 (1997-06-01), Harrington et al.
patent: 5670580 (1997-09-01), Tazaki et al.
patent: 5670595 (1997-09-01), Meka et al.
patent: 5696045 (1997-12-01), Winter et al.
patent: 5698651 (1997-12-01), Kawasaki et al.
patent: 5866663 (1999-02-01), Brookhart et al.
patent: 5986009 (1999-11-01), Thoen et al.
patent: 5993922 (1999-11-01), Babrowicz et al.
patent: 5998547 (1999-12-01), Hohner
patent: 6114457 (2000-09-01), Markel et al.
patent: 6114477 (2000-09-01), Merrill et al.
patent: 6117962 (2000-09-01), Weng et al.
patent: 6121377 (2000-09-01), Chien
patent: 6121383 (2000-09-01), Abdou-Sabet et al.
patent: 6124400 (2000-09-01), Chien
patent: 6143846 (2000-11-01), Herrmann et al.
patent: 6147174 (2000-11-01), Holtcamp et al.
patent: 6147180 (2000-11-01), Markel et al.
patent: 6150481 (2000-11-01), Winter et al.
patent: 6177377 (2001-01-01), Chien
patent: 6184327 (2001-02-01), Weng et al.
patent: 6207606 (2001-03-01), Lue et al.
patent: 6225432 (2001-05-01), Weng et al.
patent: 6248832 (2001-06-01), Peacock
patent: 6258903 (2001-07-01), Mawson et al.
patent: 6271323 (2001-08-01), Loveday et al.
patent: 6297301 (2001-10-01), Erderly et al.
patent: 6323284 (2001-11-01), Peacock
patent: 6342574 (2002-01-01), Weng et al.
patent: 6346586 (2002-02-01), Agapiou et al.
patent: 6407189 (2002-06-01), Herrmann
patent: 6583227 (2003-06-01), Mehta et al.
patent: 2001/0007896 (2001-07-01), Agarwal et al.
patent: 2001/0047064 (2001-11-01), Sun
patent: 2002/0013440 (2002-01-01), Agarwal et al.
patent: 0 284 850 (1988-10-01), None
patent: 0 527 589 (1993-02-01), None
patent: 0 667 359 (1995-08-01), None
patent: 0 718 324 (1996-06-01), None
patent: 0 864 593 (1998-09-01), None
patent: 0 942 017 (1999-09-01), None
patent: 0 987 279 (2000-03-01), None
patent: 1 008 607 (2000-06-01), None
patent: 0 806 436 (2000-07-01), None
patent: 0 619 325 (2001-08-01), None
patent: 0645401 (2001-12-01), None
patent: 1 195 391 (2002-04-01), None
patent: 1223191 (2002-07-01), None
patent: 1 589 213 (1981-05-01), None
patent: 05-320445 (1993-03-01), None
patent: 05-146747 (1993-06-01), None
patent: 1994025357 (1994-01-01), None
patent: 06-172448 (1994-06-01), None
patent: WO98/10016 (1998-03-01), None
patent: WO98/33823 (1998-08-01), None
patent: WO98/34724 (1998-08-01), None
patent: WO98/34971 (1998-08-01), None
patent: WO98/49229 (1998-11-01), None
patent: WO99/02540 (1999-01-01), None
patent: WO99/11680 (1999-03-01), None
patent: WO99/19547 (1999-04-01), None
patent: WO 99/29742 (1999-06-01), None
patent: WO99/29749 (1999-06-01), None
patent: WO99/32226 (1999-07-01), None
patent: WO99/64497 (1999-12-01), None
patent: WO 00/06621 (2000-02-01), None
patent: WO 00/12572 (2000-03-01), None
patent: WO 00/37514 (2000-06-01), None
patent: WO 01/09200 (2001-02-01), None
patent: WO 01/46273 (2001-06-01), None
patent: WO 01/46274 (2001-06-01), None
patent: WO 01/58970 (2001-08-01), None
patent: WO 02/28923 (2002-04-01), None
patent: WO 02/50145 (2002-06-01), None
patent: WO 02/070572 (2002-09-01), None
patent: WO 02/090399 (2002-11-01), None
Palanisamy Arjunan, et al., “In-Situ LCB-PP via High Temperature Propylene Polymerization Process(including “Supercritical Polymerization”)”, PLT. 16CP.2001, Nov. 20, 2001.
Chen, et al., “Cocatalysts for Metal-Catalyzed Olefin Polymerization: Activators, Activation Processes, and Structure-Activity Relationships, ” Chem. Rev. 2000, 100, pp. 1391-1434.
Dassaud, et al., “Copolymerization of Propene-nonconjugated Dienes: Derivatization Through Hydroboration and Epoxydation”, Polymers for Advanced Technologies, vol. 4, pp. 457-464, John Wiley & Sons, Ltd., (1992).
de Souza, “Recent Advances in Olefin Polymerization Using Binary Catalyst Systems”, Macromol. Rapid Commun. 2001, 22, No. 16, pp. 1293-1301.
Hackman, et al., “Functional Olefin Copolymers: Uniform Architectures of Propene/7-Methyl-1,6-octadiene Copolymers by ATR-FTIR Spectroscopy Control of Monomer Composition”, Macromolecules 2000, 33, pp. 1524-1529.
Hackmann, et al., “Zirconocene-MAO Catalyzed(co)Polymerization of Linear Non-symmetrically Substituted Dienes with Propene: A Novel Strategy to Tailored Functional Copoly(α-olefin)s and Bursh Copolymers”, Polym. Mater. Sci. 1999, 80, pp. 143-144.
Hackmann, et al., “Zirconocene-MAO Catalyzed Homo-and Copolymerizations of Linear Asymmetrically Susbstituted Dienes with Propene: A Novel Strategy to Functional(co)poly(α-olefin)s”, Macromol. Chem. Phys., pp. 1511-1517, 1998 (Germany).
Lee, et al. “Copolymerizations of Olefins and Dienes with Homogeneous and Heterogeneous Catalysts”, Eur. Polym. J., vol. 33, No. 4, pp. 447-451, 1997, Great Britain.
Markel, et al., “Metallocene-Based Branch-Block Thermoplastic Elastomers”, Macromolecules®, reprinted from vol. 33, No. 23, pp. 8541-8548.
Resconi, et al., “Selectivity in Propene Polymerization with Metallocene Catalysts”, Chem. Rev. 2000, 100, pp. 1253-1345.
Weng et al., “Synthesis of Long-Chain Branched Propylene Polymers via Macromonomer Incorporation”, Macromolecular Rapid Communications vol. 22, No. 18, pp. 1488-1492.
Arjunan Palanisamy
Brant Patrick
Mathew Thottinal A.
Vizzini James C.
ExxonMobil Chemical Patents Inc.
Harlan Robert D.
LandOfFree
Branched crystalline polypropylene does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Branched crystalline polypropylene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Branched crystalline polypropylene will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4007113