Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-02-22
2005-02-22
Teskin, Fred (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S135000, C526S185000, C526S210000, C526S213000, C526S216000, C526S237000, C526S339000, C526S347000, C526S348700
Reexamination Certificate
active
06858690
ABSTRACT:
The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of isobutylene-based polymers in continuous slurry polymerization processes. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar diluent along with a Lewis acid and a C5or greater initiator having a tertiary halide.
REFERENCES:
patent: 3560458 (1971-02-01), Kennedy et al.
patent: 4146692 (1979-03-01), Wagensommer et al.
patent: 4171414 (1979-10-01), Wagensommer et al.
patent: 4269955 (1981-05-01), Wagensommer et al.
patent: 4358560 (1982-11-01), Powers et al.
patent: 4611037 (1986-09-01), Musch et al.
patent: 4740572 (1988-04-01), Musch et al.
patent: 5162445 (1992-11-01), Powers et al.
patent: 5169914 (1992-12-01), Kaszas et al.
patent: 5206043 (1993-04-01), White
patent: 5211974 (1993-05-01), White
patent: 5247021 (1993-09-01), Fujisawa et al.
patent: 5376744 (1994-12-01), Kennedy et al.
patent: 5403803 (1995-04-01), Shaffer et al.
patent: 5417930 (1995-05-01), McDonald, Jr. et al.
patent: 5458796 (1995-10-01), Storey et al.
patent: 5506316 (1996-04-01), Shaffer
patent: 5539065 (1996-07-01), Baade et al.
patent: 5580935 (1996-12-01), Shaffer
patent: 5639525 (1997-06-01), Kuhn et al.
patent: 5703183 (1997-12-01), Shaffer
patent: 5731053 (1998-03-01), Kuhn et al.
patent: 6274689 (2001-08-01), Shaffer et al.
patent: 6444768 (2002-09-01), Webb et al.
patent: 0 279 456 (1988-08-01), None
patent: 0 599 356 (1995-12-01), None
patent: 0 478 110 (1996-03-01), None
patent: 0 488 491 (1996-03-01), None
patent: 0 713 883 (1996-05-01), None
patent: 0 722 957 (1996-07-01), None
patent: WO 9321241 (1993-10-01), None
patent: WO 9529940 (1995-11-01), None
patent: WO 9735895 (1997-10-01), None
patent: WO 0040624 (2000-07-01), None
patent: WO 0136498 (2001-05-01), None
patent: WO 0250129 (2002-06-01), None
patent: WO 0250141 (2002-06-01), None
Faust, et al., “Living Carbocationic Polymerization. XXXIX. On the Nature of the Active Species in Isobutylene and Vinyl Ether Polymerization”, Journal of Macromol. Sci.-Chem., A28(1), pp. 1-13 (1991), Marcel Dekker, Inc.
J.P. Kennedy and E. Marechal, “Carbocationic Polymerization”, pp. 32, 199, 499, 452, 460 and 461, (1982) John Wiley & Sons.
J.P. Kennedy et al, “Carbocationic Polymerization in the Presence of Sterically Hindered Bases”, Journal of Macromolecular Science Chemistry, vol. A18, No. 1, pp. 1-152, (1982), Marcel Dekker, Inc., New York.
Kaszas, et al., “Electron-Pair Donors in Carbocationic Polymerization, III. Carbocation Stabilization by External Electron-Pair Donors in Isobutylene Polymerization”, Journal of Macromol. Sci.-Chem., A26(8), pp. 1099-1114 (1989), Marcel Dekker, Inc.
Kaszas, et al., “Quasiliving Carbocationic Polymerization XII. Forced Ideal Copolymerization of Isobutylene with Styrene”, Journal of Macromol. Sci.-Chem., A18(9), pp. 1367-1382 (1982-83), Marcel Dekker, Inc.
Kelen et al., “Some Aspects of the Living Isobutylene Polymerization”, Makromol. Chem., Macromol. Symp. 67, pp. 325-339 (1993).
Kennedy, et al., “Living Carbocationic Polymerization. XXXIX. Isobutylene Polymerization in the Presence of Pyridine and various other Electron Donors”, Journal of Macromol. Sci.-Chem., A28(2), pp. 197-207 (1991), Marcel Dekker, Inc.
Kresge and Wang, “Elastomers, Synthetic(Butyl Rubber)”, Kirk-Othmer Encyclopedia of Chemical Technology, 4th Edition, vol. 8, pp. 934-955, (1993), John Wiley & Sons, New York, NY.
Lubnin, et al., “Identification of Initiator Fragments in Polyisobutylene by NMR Spectroscopy”, J.M.S.-Pure Appl. Chem., A31(6), pp. 655-663 (1994), Marcel Dekker, Inc.
O. Nuyken, et al., “Recent Progress Towards an Understanding of the Inifer Mechanism”, Polymer Preprints 26 (1), pp. 44-45, (1985).
Pernecker, et al., “Living Carbocationic Polymerization. LVII. Kinetic Treatment of Living Carbocationic Polymerization Mediated by the Common Ion Effect”, J.M.S.-Pure Appl. Chem., A30(6 & 7), pp. 399-412 (1993), Marcel Dekker, Inc.
Storey, et al., “Kinetic Investigation of the Living Cationic Polymerization of Isobutylene Initiated by 2-Chloro-2, 4,4-Trimethyl Pentane”, Polymer Preprint 36(2), pp. 304-305 (1995).
Storey, et al., “Synthesis and Characterization of Polyisobutylene Star-Branched Polymers”, Polymer Preprint 35(2), pp. 578-579 (1994).
Chen Yuan-Ju
Chung David Yen-Lung
Hembree Richard Dwight
McDonald Michael Francis
Soisson John Patrick
Arechederra Leandro
ExxonMobil Chemical Patents Inc.
Faulkner Kevin M.
Teskin Fred
LandOfFree
Process for polymerizing cationically polymerizable monomers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for polymerizing cationically polymerizable monomers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for polymerizing cationically polymerizable monomers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3494294