1
Peijun Jiang, Armenag H Dekmezian, Kevin R Squire, Cesar A Garcia Franco: Thermoplastic elastomer polyolefin in-reactor blends and molded articles therefrom. ExxonMobil Chemical Patents, Darryl M Tyus, January 24, 2012: US08101685 (19 worldwide citation)

This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene-containing polymer having a density of greater than 0.90 g/cm3 and a Mw of more than 20,000 g/mol and (b) a second ethylene-containing polymer having a density of less than 0.90 g/cm3, wherein the polymer blend ha ...


2
Cesar A Garcia Franco, David J Lohse, Robert A Mendelson, Lewis J Fetters, Scott T Milner, Nikos Hadjichristidis, David W Mead: Processing olefin copolymers. ExxonMobil Chemical Patents, Charles E Runyan, July 9, 2002: US06417281 (18 worldwide citation)

The invention is directed to essentially saturated hydrocarbon polymer composition comprising essentially saturated hydrocarbon polymers having A) a backbone chain; B) a plurality of essentially hydrocarbyl sidechains connected to A), said sidechains each having a number-average molecular weight of ...


3
Cesar A Garcia Franco, David J Lohse, Robert A Mendelson, Lewis J Fetters, Scott T Milner, Nikos Hadjichristidis, David W Mead: Processing olefin copolymers. ExxonMobil Chemical Patents, Charles Edwin Runyon Jr, May 21, 2002: US06391998 (17 worldwide citation)

The invention is directed to essentially saturated hydrocarbon polymer composition comprising essentially saturated hydrocarbon polymers having A) a backbone chain, B) a plurality of essentially hydrocarbyl sidechains connected to A), said sidechains each having a number-average molecular weight of ...


4
Cesar A Garcia Franco, David J Lohse, Robert A Mendelson, Lewis J Fetters, Scott T Milner, Nikos Hadjichristidis, David W Mead: Processing olefin copolymers. ExxonMobil Chemical Patents, William G Muller, Charles E Runyan, March 12, 2002: US06355757 (16 worldwide citation)

The invention is directed to essentially saturated hydrocarbon polymer composition comprising essentially saturated hydrocarbon polymers having A) a backbone chain, B) a plurality of essentially hydrocarbyl sidechains connected to A), said sidechains each having a number-average molecular weight of ...


5
Peijun Jiang, Armenag H Dekmezian, Kevin R Squire, Carlos U de Gracia, Keith Edward Jolibois, Cesar A Garcia Franco, Ronald Raymond Thackston: Thermoplastic olefin compositions. ExxonMobil Chemical Patents, Darryl M Tyus, September 20, 2011: US08022142 (12 worldwide citation)

An in-reactor polymer blend including (a) a propylene-containing first polymer; and (b) propylene-containing second polymer having a different crystallinity from the first polymer. The polymer blend has a melting temperature, Tm, of at least 135° C., a melt flow rate of at least 70 dg/min, a tensile ...


6
Carlos U De Gracia, Kevin R Squire, Peijun Jiang, Armenag H Dekmezian, Beverly J Poole, Cesar A Garcia Franco: Heterogeneous in-reactor polymer blends. ExxonMobil Chemical Patents, Darryl M Tyus, January 31, 2012: US08106127 (3 worldwide citation)

An in-reactor polymer blend comprises (a) a propylene-containing first polymer; and (b) an ethylene-containing second polymer such that the polymer blend comprises between about 50 wt % and about 80 wt % units derived from ethylene and between about 50 wt % and about 20 wt % units derived from propy ...


7
Francis C Rix, Sun Chueh Kao, Rainer Kolb, Dongming Li, Cesar A Garcia Franco: Catalyst systems having a tailored hydrogen response. Univation Technologies, Jennifer A Schmidt, Kristina Leavitt, September 16, 2014: US08835577 (3 worldwide citation)

A polymerization catalyst system and polymerization processes using the catalyst systems are disclosed. The polymerization catalyst systems may include a) a first catalyst compound, and b) a second catalyst compound, wherein the first catalyst compound comprises a biphenyl phenol compound having ess ...


8
Rainer Kolb, Dongming Li, Francis C Rix, Cesar A Garcia Franco: Polymerization catalysts and methods of using the same to produce polyolefin products. Univation Technologies, January 3, 2012: US08088704 (2 worldwide citation)

Polymerization catalyst systems including three or more catalyst compounds are provided. Methods for olefin polymerization including the aforementioned catalyst systems are also provided.


9
Cesar A Garcia Franco, David J Lohse, Bruce A Harrington, Robert Jay Wittenbrink: High throughput property testing of olefin copolymers using rheological determinations. ExxonMobil Chemical Patents, September 23, 2008: US07427506 (2 worldwide citation)

A high throughput method to determine an amount of a comonomer in a copolymer sample of a copolymer system comprises the steps of providing a plurality of copolymer samples; creating an array of the copolymer samples; measuring a sample complex modulus of each of the copolymer samples at a compariso ...


10
Peijun Jiang, Kevin R Squire, Charles J Ruff, Cesar A Garcia Franco: In-reactor polymer blends. ExxonMobil Chemical Patents, Darryl M Tyus, Catherine L Bell, October 16, 2012: US08288480 (1 worldwide citation)

This invention relates to in-reactor polymer blends comprising at least 60 mole % of propylene and from 0.01 to 10 mole % of at least one diene selected from the group of C6 to C12 α,ω-diene, norbornadiene, vinyl norbornene and mixtures thereof with the balance being ethylene. The blend comprises fi ...