Christopher R Davey

US Patent:

6977287, Dec 20, 2005

Filed:

Jun 24, 2003

Appl. No.:

10/602177

Inventors:

Pawan Kumar Agarwal - Houston TX, US
Weiqing Weng - Houston TX, US
Aspy K. Mehta - Humble TX, US
Armenag H. Dekmezian - Kingwood TX, US
Main Chang - Houston TX, US
Rajan K. Chudgar - League City TX, US
Christopher R. Davey - Houston TX, US
Chon-Yie Lin - Houston TX, US
Galen C. Richeson - Kingwood TX, US
Palanisamy Arjunan - Houston TX, US
Olivier Jean Georjon - Brussels, BE

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08F236/20

US Classification:

526339, 526336, 526165

Abstract:

The co-polymerization reaction of one or more olefin monomers, such as propylene, with α,ω-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99. 999 weight percent of olefins and from 0. 001 to 2. 000 weight percent of α,ω-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115 C. to 135 C. and a melt flow rate in the range from 0. 1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1 C. to 8 C.

US Patent:

8067518, Nov 29, 2011

Filed:

Jun 7, 2007

Appl. No.:

11/811015

Inventors:

Christopher R. Davey - Houston TX, US
James M. Farley - League City TX, US
Rainer Kolb - Kingwood TX, US
Mark P. Ossowski - Bridgewater NJ, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 4/76
C08F 210/02
C08F 210/06
C08F 210/08
C08F 210/14
C08F 210/16

US Classification:

526348, 526183, 526185, 526188, 526190, 526192, 526226, 5263481, 5263482, 5263486, 526943

Abstract:

Ethylene alpha-olefin copolymers formed by contacting at least one supported metallocene catalyst, ethylene, and an alpha-olefin in a gas phase reactor are disclosed. In some embodiments, the polymer may have: a density of between 0. 890 and 0. 970 g/cc; a melt index of between 0. 7 and 200 dg/min; a melt index ratio of less than 30; an ESCR value of greater than 1000 hours; and a 1% secant modulus of greater than 75,000 psi. In other embodiments, the polymer may have: a density of between 0. 930 g/cc and 0. 970 g/cc; a melt index of between 10 dg/min and 200 dg/min; a melt index ratio of between 10 and 25; a part weight of greater than 3 g and a part length of greater than 38 cm in a spiral flow test, and; a zero shear viscosity of less than 150 Pas. Processes to produce these polymers are also disclosed.

US Patent:

8084560, Dec 27, 2011

Filed:

Jun 7, 2007

Appl. No.:

11/810988

Inventors:

Rainer Kolb - Kingwood TX, US
Agapios K. Agapiou - Humble TX, US
James M. Farley - League City TX, US
Eric J. Markel - Kingwood TX, US
Bruce J. Savatsky - Kingwood TX, US
Christopher R. Davey - Houston TX, US
Richard B. Pannell - Kingwood TX, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 4/76
C08F 4/64
C08F 210/02

US Classification:

526170, 526160, 526943, 526901, 526348, 5263482, 5263485, 5263522, 528396

Abstract:

A process for the production of an ethylene alpha-olefin copolymer is disclosed, the process including polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0. 7 to 70 bar and a reactor temperature of from 20 C. to 150 C. to form an ethylene alpha-olefin copolymer. The resulting ethylene alpha-olefin copolymer may have a density D of 0. 927 g/cc or less, a melt index (I) of from 0. 1 to 100 dg/min, a MWD of from 1. 5 to 5. The resulting ethylene alpha-olefin copolymer may also have a peak melting temperature Tsatisfying the following relation: T>D*398−245.

US Patent:

8476392, Jul 2, 2013

Filed:

Oct 22, 2010

Appl. No.:

12/910482

Inventors:

Rainer Kolb - Kingwood TX, US
Agapios K. Agapiou - Humble TX, US
James M. Farley - League City TX, US
Eric J. Markel - Kingwood TX, US
Bruce J. Savatsky - Kingwood TX, US
Christopher R. Davey - Houston TX, US
Richard B. Pannell - Kingwood TX, US

Assignee:

Univation Technologies, LLC - Houston TX

International Classification:

C08F 4/76
C08F 4/64
C08F 210/02

US Classification:

526328, 525240, 526183, 526348

Abstract:

A process for the production of an ethylene alpha-olefin copolymer is disclosed, the process including polymerizing ethylene and at least one alpha-olefin by contacting the ethylene and the at least one alpha-olefin with a metallocene catalyst in at least one gas phase reactor at a reactor pressure of from 0. 7 to 70 bar and a reactor temperature of from 20 C. to 150 C. to form an ethylene alpha-olefin copolymer. The resulting ethylene alpha-olefin copolymer may have a density D of 0. 927 g/cc or less, a melt index (I) of from 0. 1 to 100 dg/min, a MWD of from 1. 5 to 5. The resulting ethylene alpha-olefin copolymer may also have a peak melting temperature Tsatisfying the following relation: T>D*398−245.

US Patent:

20010007896, Jul 12, 2001

Filed:

Dec 11, 2000

Appl. No.:

09/734479

Inventors:

Pawan Agarwal - Houston TX, US
Weiqing Weng - Houston TX, US
Aspy Mehta - Humble TX, US
Armenag Dekmezian - Kingwood TX, US
Christopher Davey - Houston TX, US
Charlie Lin - Houston TX, US
Michael Chen - Houston TX, US
Galen Richeson - Kingwood TX, US
Rajan Chudgar - League City TX, US
Main Chang - Houston TX, US

International Classification:

C08F036/02

US Classification:

526/335000, 526/348200, 526/348300, 526/348400, 526/348500, 526/348600

Abstract:

The co-polymerization reaction of one or more olefin monomers, such as propylene, with ,-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of ,)-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115 C. to 135 C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1 C. to 8 C. More desirably, one of the crystalline populations has a melting point in the range from 152 C. to 158 C. and another crystalline population has a melting point in the range from 142 C. to 148 C.

US Patent:

20010016639, Aug 23, 2001

Filed:

Dec 11, 2000

Appl. No.:

09/734100

Inventors:

Pawan Agarwal - Houston TX, US
Weiqing Weng - Houston TX, US
Aspy Mehta - Humble TX, US
Armenag Dekmezian - Kingwood TX, US
Christopher Davey - Houston TX, US
Charlie Lin - Houston TX, US
Michael Chen - Houston TX, US
Galen Richeson - Kingwood TX, US

International Classification:

C08F010/14

US Classification:

526/336000, 526/348200, 526/348300, 526/348500, 526/348600

Abstract:

The co-polymerization reaction of one or more olefin monomers, such as propylene, with ,-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of ,-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115 C. to 135 C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1 C. to 8 C. More desirably, one of the crystalline populations has a melting point in the range from 152 C. to 158 C. and another crystalline population has a melting point in the range from 142 C. to 148 C.

US Patent:

20010053837, Dec 20, 2001

Filed:

Feb 20, 2001

Appl. No.:

09/788810

Inventors:

Pawan Agarwal - Houston TX, US
Weiqing Weng - Houston TX, US
Aspy Mehta - Humble TX, US
Armenag Dekmezian - Kingwood TX, US
Main Chang - Houston TX, US
Rajan Chudgar - League City TX, US
Christopher Davey - Houston TX, US
Charlie Lin - Houston TX, US
Michael Chen - Houston TX, US
Galen Richeson - Kingwood TX, US

International Classification:

C08F110/00

US Classification:

526/335000, 526/348100, 526/348200, 526/348300, 526/348500, 526/348600

Abstract:

The copolymerization reaction of one or more olefin monomers, such as propylene, with ,-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of ,-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature (without the use of externally added nucleating agents) in the range from 115 C. to 135 C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1 C. to 16 C. More desirably, one of the crystalline populations has a melting point in the range from 152 C. to 158 C. and another crystalline population has a melting point in the range from 142 C. to 148 C.

US Patent:

20020013440, Jan 31, 2002

Filed:

Feb 20, 2001

Appl. No.:

09/788811

Inventors:

Pawan Agarwal - Houston TX, US
Weiqing Weng - Houston TX, US
Aspy Mehta - Humble TX, US
Armenag Dekmezian - Kingwood TX, US
Main Chang - Houston TX, US
Rajan Chudgar - League City TX, US
Christopher Davey - Houston TX, US
Charlie Lin - Houston TX, US
Michael Chen - Houston TX, US
Galen Richeson - Kingwood TX, US

International Classification:

C08F236/00
C08F112/34
C08F136/00

US Classification:

526/335000, 526/336000, 526/339000

Abstract:

The co-polymerization reaction of one or more olefin monomers, such as propylene, with ,-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of ,-dienes. The copolymer may have a weight average molecular weight in the range from 50,000 to 2,000,000, a crystallization temperature in the range from 115 C. to 135 C. and a melt flow rate in the range from 0.1 dg/min to 100 dg/min. These copolymers may be employed in a wide variety of applications, the articles of which include, for example, films, fibers, such as spunbonded and meltblown fibers, fabrics, such as nonwoven fabrics, and molded articles. The copolymer may further include at least two crystalline populations. Desirably, the melting point range of one of the crystalline populations is distinguishable from the melting point range of another crystalline population by a temperature range of from 1 C. to 8 C. More desirably, one of the crystalline populations has a melting point in the range from 152 C. to 158 C. and another crystalline population has a melting point in the range from 142 C. to 148 C.

Address:

4119 Vlg Cor Dr, Houston, TX 77059

VIN:

JTNBB46K473029847

Make:

TOYOTA

Model:

CAMRY HYBRID

Year:

2007