Charles Edgar Sims
Architects at Loop, Houston, TX
License number
Colorado 301940
Issued Date
Nov 16, 1979
Renew Date
Jul 31, 1991
Expiration Date
Jul 31, 1991
Type
Architect
Address
Address
2525 N Loop W #422, Houston, TX 77008
Professional information
Soft Homogeneous Isotactic Polypropylene Compositions
US Patent:
2009011, Apr 30, 2009
Filed:
Oct 6, 2008
Appl. No.:
12/246176
Inventors:
Sudhin Datta - Houston TX, US
Charles L. Sims - Houston TX, US
James Norris Coffey - League City TX, US
Charles L. Sims - Houston TX, US
James Norris Coffey - League City TX, US
International Classification:
C08L 23/16
US Classification:
525232, 525240
Abstract:
Provided are homogeneous blend compositions 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@230C) of the first polymer component is between 300 g/10 min to 5000 g/1 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. The provided compositions are useful in high temperature applications.
Multiple Catalyst And Reactor System For Olefin Polymerization And Polymers Produced Therefrom
US Patent:
7223822, May 29, 2007
Filed:
Apr 15, 2004
Appl. No.:
10/825380
Inventors:
Ramin Abhari - Bixby OK, US
Charles Lewis Sims - Houston TX, US
Peijun Jiang - League City TX, US
David Raymond Johnsrud - Humble TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Peijun Jiang - League City TX, US
David Raymond Johnsrud - Humble TX, US
Jo Ann Marie Canich - Houston TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C08F 210/06, C08F 4/6392, C08F 4/64
US Classification:
526 65, 526160, 526165, 526134, 5263483, 526116, 526943, 525245, 525247
Abstract:
Disclosed is a process for producing branched polymers including at least 50 mol % C–Colefins. The process may include: (1) feeding a first catalyst, an activator, and one or more C–Colefins into a first reaction zone at a temperature of greater than 70° C. and a residence time of 120 minutes or less to produce a product; (2) feeding the product a second catalyst, and an activator into a second reaction zone at a temperature of greater than 70° C. , and a residence time of 120 minutes or less. One of the catalysts should be chosen to produce a polymer having a weight average molecular weight of 100,000 or less and a crystallinity of 20% or less. The other catalyst should be chosen to producing a polymer having a weight average molecular weight of 100,000 or less and a crystallinity of 20% or more.
Propylene Copolymers For Adhesive Applications
US Patent:
2008008, Apr 3, 2008
Filed:
Sep 29, 2006
Appl. No.:
11/529839
Inventors:
Peijun Jiang - League City TX, US
Patrick Brant - Seabrook TX, US
Chad E. Bernard - Baytowa TX, US
David R. Johnsrud - Humble TX, US
Charles L. Sims - Houston TX, US
Patrick Brant - Seabrook TX, US
Chad E. Bernard - Baytowa TX, US
David R. Johnsrud - Humble TX, US
Charles L. Sims - Houston TX, US
International Classification:
C08L 91/08
US Classification:
524487, 525 70, 524543
Abstract:
Disclosed herein are adhesives comprising a copolymer comprising at least 80 wt % of units derived from propylene and from about 1 to about 20 wt % of units derived from at least one Cto Calpha-olefin. The copolymer has a molecular weight of less than 100,000 and a heat of fusion between about 10 and about 70 J/g. An adhesive containing the copolymer preferably exhibits at least 50% fiber tear at −18° C. and at least 50% fiber tear at +25° C. using Inland paper board as a substrate; a viscosity of less than 50,000 mPa sec at 190° C., a set time of less than 4 seconds and a toughness of at least 3.4 megajoule/m.
Blends Of Low Crystallinity, Low Molecular Weight Propylene Copolymers And Styrenic Block Copolymers
US Patent:
8052822, Nov 8, 2011
Filed:
Feb 15, 2008
Appl. No.:
12/032060
Inventors:
Sudhin Datta - Houston TX, US
Mun Fu Tse - Seabrook TX, US
Abdelhadi Sahnoune - Houston TX, US
Charles L. Sims - Houston TX, US
James N. Coffey - League City TX, US
Mun Fu Tse - Seabrook TX, US
Abdelhadi Sahnoune - Houston TX, US
Charles L. Sims - Houston TX, US
James N. Coffey - League City TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
B32B 27/00, B32B 37/24, B32B 37/00, B32B 38/00, B29C 65/00, C08L 53/00, C08L 9/00, C08L 47/00
US Classification:
156242, 156281, 525 89, 525 95, 525 98
Abstract:
Styrenic block copolymers are blended with propylene copolymers to provide polymeric compositions with an improved balance between processability and elasticity. The compositions have improved processability by facilitating the ease with which a rubbery material, usually difficult to melt process, can be processed at high line speeds, which in turn improves the formation of the composition into films or other articles, assisted by a desired level of melt elasticity, i. e. , a high elastic extension and recovery.
Isotactic Polypropylene Nucleation
US Patent:
2008024, 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
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.
Multiple Catalyst System For Olefin Polymerization And Polymers Produced Therefrom
US Patent:
8071687, Dec 6, 2011
Filed:
Aug 2, 2007
Appl. No.:
11/888870
Inventors:
Peijun Jiang - League City TX, US
Armenag Hagop Dekmezian - Kingwood TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Ramin Abhari - Friendswood TX, US
Cesar Alberto Garcia-Franco - Houston TX, US
David Raymond Johnsrud - Humble TX, US
Armenag Hagop Dekmezian - Kingwood TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Ramin Abhari - Friendswood TX, US
Cesar Alberto Garcia-Franco - Houston TX, US
David Raymond Johnsrud - Humble TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C08F 210/06, C08F 110/06, C08L 23/10, C08L 23/16
US Classification:
525240, 525247, 524570, 524582, 526248, 526351
Abstract:
This invention relates to an adhesive comprising a polymer composition comprising at least 50 mol % of one or more C3 to C40 olefins where the polymer composition has (a) a Dot T-Peel of 1 Newton or more on Kraft paper; (b) an Mw of at least 7000 to 80,000; (c) a branching index (g′) of from 0. 4 to 0. 90 measured at the Mz of the polymer composition; (d) a heat of fusion of 1 to 70 J/g; and (e) a heptane insoluble fraction of 70 weight % or less, based upon the weight of the polymer composition, where the heptane insoluble fraction has branching index g′ of 0. 9 or less as measured at the Mz of the polymer composition.
Mutliple Catalyst System For Olefin Polymerization And Polymers Produced Therefrom
US Patent:
7294681, Nov 13, 2007
Filed:
Oct 15, 2003
Appl. No.:
10/687508
Inventors:
Peijun Jiang - League City TX, US
Armenag Hagop Dekmezian - Kingwood TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Ramin Abhari - Friendswood TX, US
Cesar Alberto Garcia-Franco - Houston TX, US
David Raymond Johnsrud - Humble TX, US
Armenag Hagop Dekmezian - Kingwood TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Ramin Abhari - Friendswood TX, US
Cesar Alberto Garcia-Franco - Houston TX, US
David Raymond Johnsrud - Humble TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C08F 210/06, C08F 210/18, C08F 4/646, C08F 4/6392
US Classification:
5263482, 526114, 526116, 526160, 526165, 526336, 526337, 526943
Abstract:
This invention relates to a polymer of one or more C3 to C40 olefins, optionally one or more diolefins, and less than 15 mole % of ethylene, and polymerization processes for producing the same.
Multiple Catalyst System For Olefin Polymerization And Polymers Produced Therefrom
US Patent:
8088867, Jan 3, 2012
Filed:
Aug 2, 2007
Appl. No.:
11/888876
Inventors:
Peijun Jiang - League City TX, US
Armenag Hagop Dekmezian - Kingwood TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Ramin Abhari - Friendswood TX, US
Cesar Alberto Garcia-Franco - Houston TX, US
David Raymond Johnsrud - Humble TX, US
Armenag Hagop Dekmezian - Kingwood TX, US
Jo Ann Marie Canich - Houston TX, US
Charles Lewis Sims - Houston TX, US
Ramin Abhari - Friendswood TX, US
Cesar Alberto Garcia-Franco - Houston TX, US
David Raymond Johnsrud - Humble TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C08L 23/10, C08F 4/64, C08F 4/6592
US Classification:
525240, 525245, 525247, 526113, 526114, 526160, 526165, 526348, 5263482, 526943
Abstract:
The invention relates to a polymer blend prepared by the process of combining under polymerization conditions: (A) a first catalyst capable of producing a first crystalline polymer having an Mw of 100,000 or less, (B) a second catalyst capable of preparing a second amorphous polymer having an Mw of 100,000 or less and differing in chemical or physical properties from the first polymer under equivalent polymerization conditions, (C) a cocatalyst, activator, scavenger, or combination thereof, and (D) one or more olefins; wherein the polymer blend is formed in-situ, comprises crystalline polymer segments and amorphous polymer segments, and has an Mw of 100,000 or less.
Propylene Copolymers In Soft Thermoplastic Blends
US Patent:
2009027, Oct 29, 2009
Filed:
Apr 23, 2008
Appl. No.:
12/108336
Inventors:
Abdelhadi Sahnoune - Houston TX, US
Sudhin Datta - Houston TX, US
Mun Fu Tse - Seabrook TX, US
Charles L. Sims - Houston TX, US
James N. Coffey - League City TX, US
Peijun Jiang - League City TX, US
Sudhin Datta - Houston TX, US
Mun Fu Tse - Seabrook TX, US
Charles L. Sims - Houston TX, US
James N. Coffey - League City TX, US
Peijun Jiang - League City TX, US
International Classification:
C08K 5/01
US Classification:
524476
Abstract:
Thermoplastic polyolefins (TPOs) and/or thermoplastic vulcanizates (TPVs) are blended with low molecular weight propylene-dominated copolymers to provide polymeric compositions with an improved balance between processability and toughness. The compositions have improved processability by facilitating the ease with which a TPO or TPV, usually difficult to melt process, can be processed at high line speeds, which in turn improves the formation of the composition into articles.
Adhesives
US Patent:
6992131, Jan 31, 2006
Filed:
Feb 21, 2003
Appl. No.:
10/370695
Inventors:
Michel L. Faissat - Waterloo, BE
Anthony George Karandinos - St. Stevens-Woluwe, BE
Charles Lewis Sims - Houston TX, US
Anthony George Karandinos - St. Stevens-Woluwe, BE
Charles Lewis Sims - Houston TX, US
Assignee:
ExxonMobil Chemical Patents Inc. - Houston TX
International Classification:
C08L 23/00
US Classification:
524528, 524474
Abstract:
This invention relates to an adhesive including (a) a copolymer including butene, at least 40 mol % propylene, and from 0 to 30 mol % of a termonomer selected from ethylene and Cto Clinear, branched or cyclic alpha olefins, wherein the copolymer has (i) a weight average molecular weight of 100,000 or less; (ii) a number average molecular weight of 20,000 or less; (iii) an Mw/Mn of 5 or more; and (iv) a viscosity of 8000 mPa. sec or less at 190° C. ; and (b) a hydrocarbon resin, and/or (c) a polypropylene having at least 30% crystallinity having a viscosity of 1500 mPa. s or less at 190° C. , or a tactic polypropylene having a viscosity of 1500 mPa. s or less at 190° C. , provided that if the tactic polypropylene is not present, then the hydrocarbon resin is a cyclopentadiene-based hydrocarbon resin. This invention also relates to blends of the copolymer described above and isotactic polypropylene without hydrocarbon resin.