Derek Landon Thurman

US Patent:

8263707, Sep 11, 2012

Filed:

Apr 3, 2008

Appl. No.:

12/080495

Inventors:

Sudhin Datta - Houston TX, US
Charles L. Sims - Houston TX, US
Peijun Jiang - League City TX, US
Abdelhadi Sahnoune - Houston TX, US
Derek W. Thurman - Houston TX, US

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08L 23/00
C08L 23/10
C08K 5/00

US Classification:

525191, 525240, 524515, 524528

Abstract:

The present invention also discloses a heterogeneous blend composition comprising; a) from 1% to 99% by weight of the blend of a first polymer component comprising a copolymer of 5% to 35% by weight of the first polymer component consisting predominantly of alpha olefin derived units and 65% to 95% by weight of the first polymer component of propylene derived units having a crystallinity of 0. 1% to about 25% from isotactic polypropylene sequences, a melting point of from 45 C. to 105 C. , and wherein the Melt Flow Rate (MFR@230 C. ) of the first polymer component is between 300 g/10 min to 5000 g/10 min b) from 1% to 99% by weight of the blend of a second polymer component comprising isotactic polypropylene and random copolymers of isotactic propylene, wherein the percentage of the copolymerized alpha-olefin in the copolymer is between 0. 0% and 9% by weight of the second polymer component and wherein the second polymer component has a melting point greater than about 110 C. , wherein the first polymer component has less than 1000 ppm of reaction products arising from the chemical reaction of a molecular degradation agent.

US Patent:

20080249231, Oct 9, 2008

Filed:

Apr 3, 2008

Appl. No.:

12/080486

Inventors:

Sudhin Datta - Houston TX, US
Charles L. Sims - Houston TX, US
Peijun Jiang - League City TX, US
Abdelhadi Sahnoune - Houston TX, US
Derek W. Thurman - Houston TX, US

International Classification:

C08L 23/16
C08L 9/00

US Classification:

524528, 525240, 525232

Abstract:

The present invention also discloses a homogeneous blend composition comprising; a) from 1% to 99% by weight of the blend of a first polymer component comprising a copolymer of 5% to 35% by weight of the first polymer component consisting predominantly of alpha olefin derived units and 65% to 95% by weight of the first polymer component of propylene derived units having a crystallinity of 0.1% to about 25% from isotactic polypropylene sequences, a melting point of from 45 C. to 105 C., and wherein the Melt Flow Rate (MFR @ 230 C.) of the first polymer component is between 300 g/10 min to 5000 g/10 min. b) from 1% to 99% by weight of the blend of a second polymer component comprising isotactic polypropylene and random copolymers of isotactic propylene, wherein the percentage of the copolymerized alpha-olefin in the copolymer is between 0.0% and 9% by weight of the second polymer component and wherein the second polymer component has a melting point greater than about 110 C., wherein the first polymer component has less than 1000 ppm of reaction products arising from the chemical reaction of a molecular degradation agent.

US Patent:

20080249248, Oct 9, 2008

Filed:

Jan 11, 2008

Appl. No.:

12/013183

Inventors:

Derek Thurman - Houston TX, US
Sudhin Datta - Houston TX, US
Wen Li - Houston TX, US
Charles L. Sims - Houston TX, US

International Classification:

C08L 23/02

US Classification:

525240

Abstract:

Low molecular weight semicrystalline propylene-alpha olefin copolymers containing propylene crystallinity are used as a nucleating agent in crystalline polypropylene and polypropylene copolymers. The nucleating copolymers are propylene-alpha olefin copolymers having a percent crystallinity of 5-75%, a melting point of 45 C.-105 C., and an MFR between 300 and 5000 g/10 min. Nucleated polypropylene compositions comprise a nucleating amount of the copolymer blended in a matrix of polypropylene homopolymer, or 0.01 to 9 wt % α-olefin copolymer, having a melting point greater than 110 C. The nucleating copolymer improves processing time with little or no effect on the crystallinity-associated characteristics of the matrix. The invention also provides methods of crystallizing polypropylene with the nucleating agent and of forming articles with the composition, and also provides articles formed from the composition and/or by the method.

US Patent:

20090053959, Feb 26, 2009

Filed:

Aug 15, 2008

Appl. No.:

12/192823

Inventors:

Sudhin Datta - Houston TX, US
Derek W. Thurman - Houston TX, US
Chia Y. Cheng - Seabrook TX, US
Li Wen - Houston TX, US
David R. Johnsrud - Humble TX, US

International Classification:

D04H 13/00
B29C 43/24
B32B 27/32

US Classification:

442328, 442361, 442382, 264175

Abstract:

This invention relates to a nonwoven fabric having a first component of from 5% to 99% by weight based on the total weight of the composition wherein the first component is selected from the group consisting of homopolymers of propylene and random copolymers of propylene, the first component having a heat of fusion as determined by DSC of less than 50 J/g and stereoregular propylene crystallinity; and a second component having from 95% to 1% by weight based on the total weight of the composition of a propylene polymer or blends of propylene polymers; wherein the nonwoven fabric has a permanent set of less than 60%.

US Patent:

20100029162, Feb 4, 2010

Filed:

Aug 4, 2008

Appl. No.:

12/185449

Inventors:

Sudhin Datta - Houston TX, US
Derek Thurman - Houston TX, US
Chia Yung Cheng - Seabrook TX, US
Kuangyao B. Peng - Houston TX, US

International Classification:

D04H 13/00
B29C 49/00

US Classification:

442400, 264546

Abstract:

Disclosed herein is a nonwoven fabric comprising within the range of from 50 to 99 wt %, by weight of the composition, of a reactor grade propylene-α-olefin copolymer possessing within the range of from 5 to 35 wt %, by weight of the copolymer, of units derived from one or more of ethylene and/or Cto Cα-olefins; a melt flow rate (230 C./2.16 kg) within the range of from 500 to 7500 g/10 min; and a weight average molecular weight of less than 200,000; and a second polypropylene having a melting point, T, of greater than 110 C. and a melt flow rate (230 C./2.16 kg) within the range of from 20 to 7500 g/10 min; wherein the fabric has a CD Elongation value of greater than 50% (measuring the fabric of 35 g/mbasis weight). The fabric described herein can be used in structures comprising one or more layers of the fabric described herein, and can include any number of other fabric layers made from other materials.

US Patent:

20100029164, Feb 4, 2010

Filed:

Aug 4, 2008

Appl. No.:

12/185491

Inventors:

Sudhin Datta - Houston TX, US
Derek Thurman - Houston TX, US
Chia Yung Cheng - Seabrook TX, US
Kuangyao B. Peng - Houston TX, US

International Classification:

B29C 49/78
D04H 13/00

US Classification:

442414, 264 404

Abstract:

Disclosed herein is a nonwoven fabric comprising within the range of from 1 to 49 wt %, by weight of the fabric, of a reactor grade propylene-α-olefin copolymer possessing; within the range of from 5 to 35 wt %, by weight of the copolymer, of units derived from one or more of ethylene and/or Cto Cα-olefins; a melt flow rate (230 C./2.16 kg) within the range of from 600 to 7500 g/10 min; and a weight average molecular weight of less than 200,000; and a second polypropylene having a melting point, T, of greater than 110 C. and a melt flow rate (230 C./2.16 kg) within the range of from 20 to 7500 g/10 min; wherein the fabric has a Handle value of less than 60% (measuring the fabric of 35 g/mbasis weight). The fabric can be used in structures comprising one or more layers of the fabric described herein, and can include any number of other fabric layers made from other materials.

US Patent:

20120052362, Mar 1, 2012

Filed:

Apr 7, 2010

Appl. No.:

13/264045

Inventors:

Derek Thurman - Houston TX, US
Patrick Brant - Houston TX, US
Kazuhiro Yamada - Tochigi, JP
Koichi Kono - Tochigi, JP

Assignee:

TORAY TONEN SPECIALTY SEPARATOR GODO KAISHA - Nasushiobara, Tochigi

International Classification:

H01M 2/16
B32B 27/32
B29C 70/18
B32B 5/02

US Classification:

429145, 442394, 442398, 442381, 156166

Abstract:

A thermoplastic film including a microporous polymeric membrane; and a non-woven web comprising a plurality of fibers, the web being bonded to the microporous polymeric membrane, wherein the fibers comprise oxidation-protective polymer having an MFR ≧2.0×10.

US Patent:

20200048383, Feb 13, 2020

Filed:

Oct 4, 2017

Appl. No.:

16/339946

Inventors:

- Baytown TX, US
Antonios K. Doufas - Houston TX, US
Derek W. Thurman - Friendswood TX, US
David F. Sanders - Beaumont TX, US
Matthew S. Bedoya - Humble TX, US

International Classification:

C08F 210/16

Abstract:

This invention relates to a catalyst system including the reaction product of a support (such as a fluorided silica support that preferably has not been calcined at a temperature of 400 C. or more), an activator and at least two different transition metal catalyst compounds; methods of making such catalyst systems, polymerization processes using such catalyst systems and polymers made therefrom.