1
Brian W S Kolthammer, Robert S Cardwell: Ethylene interpolymerizations. The Dow Chemical Company, December 1, 1998: US05844045 (195 worldwide citation)

Processes for polymerizing ethylene/.alpha.-olefin interpolymer compositions are disclosed. The interpolymer compositions have a controlled composition and a controlled molecular weight distribution. The processes utilize a highly-efficient homogeneous catalyst composition in at least one reactor to ...


2
Brian W S Kolthammer, Robert S Cardwell: Ethylene interpolymerizations. The Dow Chemical Company, February 9, 1999: US05869575 (193 worldwide citation)

Processes for polymerizing ethylene/.alpha.-olefin interpolymer compositions are disclosed. The interpolymer compositions have a controlled composition and a controlled molecular weight distribution. The processes utilize a highly-efficient homogeneous catalyst composition in at least one reactor to ...


3
Brian W S Kolthammer, Robert S Cardwell, Ronald P Markovich, Bharat I Chaudhary, Adam E Laubach, Jesus Nieto: Ethylene interpolymer blend compositions. The Dow Chemical Company, September 10, 2002: US06448341 (169 worldwide citation)

Film, molded articles and fibers prepared from ethylene/&agr;-olefin interpolymer compositions are disclosed. The interpolymer compositions are blends prepared by combining specified amounts of a narrow molecular weight distribution, narrow composition distribution breadth index interpolymer, and a ...


4
Deepak R Parikh, Robert S Cardwell, Brian W S Kolthammer: Ethylene interpolymer polymerizations. Dow Global Technologies, Whyte Hirschboeck Dudek SC, May 20, 2003: US06566446 (169 worldwide citation)

A new process of interpolymerizing ethylene interpolymer products having improved properties, such as increased onset of crystallization temperature, is disclosed. Preferably, the process comprises interpolymerizing a first homogeneous ethylene/alpha-olefin interpolymer and at least one second homog ...


5
Robert S Cardwell, Brian W S Kolthammer, Deepak R Parikh: Ethylene interpolymer polymerizations. Dow Global Technologies, Whyte Hirschboeck Dudek SC, March 25, 2003: US06538070 (122 worldwide citation)

A new process of interpolymerizing ethylene interpolymer products having improved properties, such as increased onset of crystallization temperature, is disclosed. Preferably, the process comprises interpolymerizing a first homogeneous ethylene/alpha-olefin interpolymer and at least one second homog ...


6
Brian W S Kolthammer, Robert S Cardwell, John C Tracy: Catalyst composition. The Dow Chemical Company, September 26, 1995: US05453410 (105 worldwide citation)

An addition polymerization catalyst comprising a cationic complex of a Group 4 metal cyclopentadienyl derivative and an alumoxane shows improved resistance to catalyst poisons.


7
Robert D Swindoll, Bruce A Story, Brian W S Kolthammer, Kevin P Peil, David R Wilson, James C Stevens: Gas phase polymerization of olefins. The Dow Chemical Company, February 15, 2000: US06025448 (86 worldwide citation)

A gas phase fluidized bed process is described for producing ethylene polymers having improved processability and an MWD of less than about 2.9. Multiple reactors in series or parallel may be used to produce in-situ blended polymers. Each reactor can separately have a constrained geometry catalyst o ...


8
Malcolm F Finlayson, Craig C Garrison, Ralph E Guerra, Martin J Guest, Brian W S Kolthammer, Deepak R Parikh, Steven M Ueligger: Ultra-low molecular weight ethylene polymers. The Dow Chemical Company, April 25, 2000: US06054544 (67 worldwide citation)

The subject invention pertains to a non-pourable homogeneous ultra-low molecular weight ethylene polymer composition and a process for the preparation thereof. Such polymer compositions have longer lamella and a greater degree of crystalline organization than corresponding higher molecular weight ma ...


9
Brian W S Kolthammer, Robert S Cardwell, Deepak R Parikh, Morris S Edmondson, Stanley W Smith: Metallocene-catalyzed process for the manufacture of EP and EPDM polymers. Dow Global Technologies, Whyte Hirschboeck Dudek SC, April 8, 2003: US06545088 (62 worldwide citation)

Ethylene, an &agr;-olefin and, optionally, a diene monomer are polymerized in a process comprising the step of contacting (1) ethylene, (2) at least one C


10
Robert K Rosen, Brian W S Kolthammer: Synthesis of cyclopentadienyl metal coordination complexes from metal hydrocarbyloxides. The Dow Chemical Company, December 30, 1997: US05703257 (55 worldwide citation)

A process for preparing bridged mono- and bis(cyclopentadienyl) metal dihydrocarbyloxy coordination complexes (I) by contacting in the presence of an aprotic organic diluent a metal compound of the formula M(OR).sub.4 with a dianionic salt compound. A process for preparing bridged mono- and bis(cycl ...