1
Stephen John Brown, Christopher John Brooke Dobbin, Clayton Trevor Elston, Norman Dorien Joseph Aubee, Gilbert Alexander Arnould, Sarah Marshall, Lawrence Thomas Kale, Mark Weber: Heterogeneous/homogeneous copolymer. Nova Chemicals, Kenneth H Johnson, January 10, 2006: US06984695 (50 worldwide citation)

Novel polyethylene copolymer compositions prepared with a homogeneous catalyst system are characterized by having a unique high molecular weight, low comonomer (high density) fraction. These heterogeneous/homogeneous compositions may be prepared using a solution polymerization process in which the p ...


2
Stephen John Brown, John William Swabey, Christopher John Brooke Dobbin: Solution polymerization process. Nova Chemicals, Kenneth H Johnson, August 17, 2004: US06777509 (29 worldwide citation)

A solution polymerization process using a phosphinimine catalyst and a boron activator is conducted at a temperature of about 170° C. or greater in the presence of trialkyl aluminum to produce polyethylene having a comparatively broad molecular weight distribution. The polyethylene product produced ...


3
Alexei Kazakov, Stephen John Brown, Christopher John Brooke Dobbin, Stanley Allan Grabow: Multimodal polyolefin pipe. Nova Chemicals, Kenneth H Johnson, November 4, 2003: US06642313 (20 worldwide citation)

A solution polymerization process in a series or parallel of two or more reactors at different temperatures is used to prepare a multimodal polyolefin resin of narrow molecular weight distribution. This resin is used to manufacture melt extruded pipe that has an improved performance at elevated temp ...


4
XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman: Caps and closures. NOVA Chemicals, Lawrence T Kale, November 29, 2016: US09505893 (8 worldwide citation)

This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater than 0; total catalytic metal ≧3.0 ppm; ≧0.03 terminal vinyl unsaturatio ...


5
XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman: Rotomolded articles. NOVA Chemicals, Lawrence T Kale, December 6, 2016: US09512283 (7 worldwide citation)

This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greate ...


6
Patrick Lam, Tieqi Li, XiaoChuan Wang, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman: HDPE articles. NOVA Chemicals, Lawrence T Kale, November 29, 2016: US09505892 (7 worldwide citation)

This disclosure relates to manufactured articles containing ethylene interpolymers. Specifically, films, containers and lids comprising at least one layer of an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilut ...


7
Celine Bellehumeur, XiaoChuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman: Rotomolded articles. NOVA Chemicals, Lawrence T Kale, July 4, 2017: US09695309 (6 worldwide citation)

This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greate ...


8
Tieqi Li, XiaoChuan Wang, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman: Dilution index. NOVA Chemicals, Lawrence T Kale, December 6, 2016: US09512282 (6 worldwide citation)

This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Yd) greater than 0; total catalytic metal≧3.0 ppm; ≧0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than ...


9
Daniel Ward, Michael Li, Xiaochuan Wang, Tieqi Li, Christopher John Brooke Dobbin, Fazle Sibtain, Kenneth Edward Taylor, Hamidreza Khakdaman: Ethylene interpolymer films. NOVA Chemicals, Lawrence T Kale, December 13, 2016: US09518159 (6 worldwide citation)

This disclosure relates to multilayer films having improved caulkability. These multilayer films have at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Yd) greater tha ...


10
Mark Weber, Philippa Hocking, Stephen John Brown, Christopher John Brooke Dobbin: Rotomolding process with reduced cycle times. Nova Chemicals, Kenneth H Johnson, April 10, 2007: US07201864 (1 worldwide citation)

The cycle time for a rotomolding process is improved through the use of a molding material comprising a blend of at least two polyethylenes having narrow molecular weight distributions and homogeneous comonomer distributions. Alternatively, the molding temperature may be reduced to conserve energy a ...