Isotactic polypropylene containing polymers

Details Isotactic polypropylene containing polymers Isotactic polypropylene containing polymers

2007-11-27

2007-11-27

Lu, Caixia (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348000, C526S161000, C526S165000

Reexamination Certificate

active

11261920

ABSTRACT:
Isotactic polypropylene homopolymers or segments of low polydispersity are prepared using phenoxyketimine catalysts containing N-pentafluorophenyl groups.

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Busico, V., et al., “The First Molecularly Characterized Isotactic Polypropylene-block-polyethylene Obtained via “Quasi-Living” Insertion Polymerization”, Macromolecules 2003, 36, 3806-3808.
Busico, V., et al., “Block Copolymers of Highly Isotactic Polypropylene via Controlled Ziegler-Natta Polymerization”, Macromolecules 2004, 37, 8201-8203—and supporting information.
Mason, A. F., et al., “New Phenoxyketimine Titanium Complexes: Combining Isotacticity and Living Behavior in Propylene Polymerization”, J. Am. Chem. Soc. 2004, 126, 16326-16327—and supporting information.
Seymour, R.B., et al., “Advances in polyolefins: the world's most widely used polymers”, George A. Lock article, “Thermoplastic Elastomers Based on Block Copolymers of Ethylene and Propylene”, Plenum Press, New York, ISBN: 030642682X, 1987, pp. 59-74.

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