1
Charles Cozewith, Sudhin Datta, Weiguo Hu: Propylene ethylene polymers. ExxonMobile Chemical Patents, S D Prodnuk, February 25, 2003: US06525157 (225 worldwide citation)

Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolyme ...


2
Charles C Cozewith, Sudhin Datta, Weiguo Hu: Blends made from propylene ethylene polymers. ExxonMobil Chemical Patents, Mandi Milbank, Leandro Arechederra, July 26, 2005: US06921794 (51 worldwide citation)

Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, ...


3
Sudhin Datta, Bruce A Harrington, Weiguo Hu, Periagaram S Ravishankar, George Rodriguez: Propylene ethylene polymers and production process. ExxonMobil Chemical Patents, June 19, 2007: US07232871 (27 worldwide citation)

Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolyme ...


4
Juergen Kerth, Rainer A Werner, Ralf Zolk, Klaus Dieter Ruempler, Guenther Schweier, Rudolf Mueller Mall, Wolfgang Gruber: Preparation of propylene/ethylene polymers of the toughened polypropylene type. BASF Aktiengesellschaft, Keil & Weinkauf, December 11, 1990: US04977210 (15 worldwide citation)

Propylene/ethylene block copolymers are prepared by a continuous process in which, in each case in an agitated fixed bed of finely divided polymer from the gas phase, first (I) in a first polymerization zone, propylene is homopolymerized by feeding in a Ziegler-Natta catalyst system consisting of (1 ...


5
Charles Cozewith, Sudhin Datta, Weiguo Hu: Articles made from blends made from propylene ethylene polymers. ExxonMobil Chemical Patents, Leandro Arechederra, April 11, 2006: US07026404 (7 worldwide citation)

Articles made from polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolym ...


6
Oskar Buechner, Wolfgang Gruber: Preparation of propylene/ethylene polymers. BASF Aktiengesellschaft, Keil & Weinkauf, April 9, 1991: US05006600 (6 worldwide citation)

Propylene/ethylene polymers are prepared by a process in which, in each case in the presence of hydrogen and by means of gas phase polymerization, first (A), in a first polymerization zone, propylene is homopolymerized, and the resulting propylene homopolymer is introduced into (B) a second polymeri ...


7
Charles C Cozewith, Sudhin Datta, Weiguo Hu: Blends made from propylene ethylene polymers. ExxonMobil Chemical Patents, Leandro Arechederra, April 11, 2006: US07026405 (5 worldwide citation)

Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, ...


8
Charles C Cozewith, Sudhin Datta, Weiguo Hu: Blends made from propylene ethylene polymers. ExxonMobil Chemical Patents, Leandro Arechederra, April 25, 2006: US07034078 (3 worldwide citation)

Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, ...


9
Gruber Wolfgang Dr, Ruempler Klaus Dieter Dr: Process for the preparation of propylene ethylene polymers.. BASF, November 21, 1984: EP0125590-A2 (2 worldwide citation)

A process for the preparation of propylene-ethylene block copolymers in which first (I) propylene is homopolymerised from the gas phase in a first polymerisation zone, and (II) a mixture of propylene and ethylene is polymerised onto the propylene homopolymer in a second polymerisation zone, characte ...


10
Sudhin Datta, Bruce A Harrington, Weiguo Hu, Periagaram S Ravishankar, George Rodriguez: Propylene ethylene polymers and production process. ExxonMobil Chemical Patents, September 27, 2011: US08026323 (1 worldwide citation)

Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolyme ...