Carlos E Corleto

US Patent:

7476769, Jan 13, 2009

Filed:

Nov 9, 2007

Appl. No.:

11/983685

Inventors:

Jason Clark - Houston TX, US
Steve Harden - Pasadena TX, US
Steven Gray - Bellaire TX, US
Vance Stevens - Deer Park TX, US
Carlos Corleto - Seabrook TX, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C07C 409/02
C08J 3/28

US Classification:

568573, 522149, 522150

Abstract:

Process for the preparation of a hydroperoxide functionalized olefinic compound in an oxidation reactor containing a particulate catalyst bed comprising a light induced photosensitized catalyst component supported on a particulate substrate material forming a permeable catalyst bed. The photoenergized catalyst component is a photoreductant material which is effective for the conversion of triplet oxygen to singlet oxygen under illumination with ultraviolet or visible light. An oxygen containing feed stream containing triplet oxygen is supplied to the catalyst bed. The catalyst bed is irradiated at an intensity to convert triplet oxygen to singlet oxygen to produce a singlet oxygen enriched gas stream. The enriched gas stream is supplied to a second reactor which contains a dispersion of an olefinic component having an allylic hydrogen which is contacted with the enriched gas stream under conditions effective to cause an allylic rearrangement and introduce hydroperoxide functionalization into the olefinic component.

US Patent:

7754849, Jul 13, 2010

Filed:

Feb 1, 2006

Appl. No.:

11/345439

Inventors:

Carlos R. Corleto - Seabrook TX, US
John Tomlinson - Prairieville LA, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F 6/00
C08G 4/00

US Classification:

528480, 159 21, 159 23, 159 471, 264 403, 264557, 528241

Abstract:

A devolatilizer nozzle comprising at least one perforated flow tube having a non-circular cross-section. In an embodiment, the non-circular cross-section has equal to or greater than 3 sides. The non-circular cross-section of said nozzle may be a triangle, diamond, pentagon, hexagon, heptagon, or octagon. A majority of the perforations in the flow tube of said nozzle may have a maximum strand angle of equal to or less than 45 degrees. The nozzle may further comprise tapered holes, which may be formed by a water jet. The nozzle may further comprise a plurality of parallel flow tubes. The nozzle may comprise 304 stainless steel, AL-6XN stainless steel, or LDX 2101 stainless steel.

US Patent:

7861410, Jan 4, 2011

Filed:

Nov 7, 2003

Appl. No.:

10/703977

Inventors:

Carlos R. Corleto - Seabrook TX, US
Jose M. Sosa - Deer Park TX, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

B23P 15/16

US Classification:

29890143, 29890142, 29557

Abstract:

A method is provided for perforating a steel plate, forming a devolatilizer nozzle from the steel plate, and heat treating the devolatilizer nozzle. The devolatilizer nozzle may have a yield strength of at least about 110 ksi, and a tensile strength of at least about 140 ksi. The perforations in the steel plate are holes in the nozzle and may be no more than about 0. 05 inches in diameter. The thickness of the steel plate may be from about 0 to about 0. 75 inches. The nozzle may include at least about 500,000 perforations where the center-to-center hole distance may be at least about 0. 08 inches. The capacity of the devolatilizer nozzle may be from about 0 to about 75,000 pounds per hour.

US Patent:

8110644, Feb 7, 2012

Filed:

May 11, 2010

Appl. No.:

12/777553

Inventors:

Tim Coffy - Houston TX, US
Steven Gray - Florence KY, US
David Knoeppel - League City TX, US
Cyril Chevillard - Dickinson TX, US
David Rauscher - Angleton TX, US
Carlos Corleto - Seabrook TX, US
Gerhard Guenther - Kemah TX, US
Brian Cole - Kingwood TX, US
Stan Biesert - Houston TX, US
Vincent Barre - Jacksonville FL, US
Ruby Curtis - League City TX, US
Son Nguyen - Friendswood TX, US
Danielle Childress - Webster TX, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F 110/02
C08F 4/42

US Classification:

526352, 526348, 5261243

Abstract:

Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0. 930 g/cc to 0. 960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0. 930 g/cc to 0. 960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kWh/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kWh/ton, and forming an article.

US Patent:

8242212, Aug 14, 2012

Filed:

Mar 29, 2011

Appl. No.:

13/074763

Inventors:

Camille Grossetete - Ivry sur Seine, FR
David W. Knoeppel - League City TX, US
Jose M. Sosa - Deer Park TX, US
Shane Steagall - Houston TX, US
Carlos Corleto - Seabrook TX, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F 297/02
C08L 23/00
C08L 23/02

US Classification:

525241, 524577

Abstract:

A method of preparing a polystyrene blend that includes combining a first polystyrene composition having a first melt flow index with a second polystyrene composition having a second melt flow index and forming a polystyrene blend, the second melt flow index being at least 2 dg/min higher that the first melt flow index. The polystyrene blend has an observed tensile strength value greater than 3% above the expected tensile strength value. The second polystyrene composition can include a recycled polystyrene material, which can include expanded polystyrene. An alternate method of preparing the polystyrene blend includes combining a polystyrene composition with a styrene monomer to form a reaction mixture, polymerizing the reaction mixture and obtaining a polystyrene blend, where the polystyrene containing composition has a melt flow index at least 2 dg/min higher than the melt flow index of the styrene monomer after it has been polymerized.

US Patent:

20050126256, Jun 16, 2005

Filed:

Dec 16, 2003

Appl. No.:

10/737624

Inventors:

Carlos Corleto - Seabrook TX, US

International Classification:

G01N003/62

US Classification:

073001010

Abstract:

An accelerated method of determining the failure time of a polyethylene resin by determining the minimum displacement rate, or the time at minimum displacement rate, using ASTM F 1473-01, then following one of these routes: (1) If failure has not yet occurred, cryogenically fracturing the resin specimen and examining it for slow crack growth to determine whether the anticipated, or desired, failure time is generally before or after the predicted failure time; or (2) Applying the minimum displacement rate, or the time at minimum displacement rate, in the appropriate mathematical formula to predict the failure time for the resin. The mathematical formula is derived from the discovery of a power law relationship between the failure time and minimum displacement rate, or between failure time and the time at minimum displacement rate. Thus, it is not necessary to actually test all the way to failure using ASTM F 1473-01, thereby accelerating testing capability and consequently enabling more rapid development of new resins.

US Patent:

20080051538, Feb 28, 2008

Filed:

Jul 6, 2007

Appl. No.:

11/774255

Inventors:

TIM COFFY - Houston TX, US
Steven Gray - Florence KY, US
David Knoeppel - League City TX, US
Cyril Chevillard - Dickinson TX, US
David Rauscher - Angleton TX, US
Carlos Corleto - Seabrook TX, US
Gerhard Guenther - Kemah TX, US
Brian Cole - Kingwood TX, US
Stan Beisert - Friendswood TX, US
Vincent Barre - Jacksonville FL, US
Ruby Curtis - League City TX, US
Son Nguyen - Friendswood TX, US
Danielle Childress - Webster TX, US

Assignee:

FINA TECHNOLOGY, INC. - Houston TX

International Classification:

C08F 4/52

US Classification:

526170000

Abstract:

Disclosed is a bimodal Ziegler-Natta catalyzed polyethylene, having a density of from 0.930 g/cc to 0.960 g/cc, and a molecular weight distribution of from 10 to 25, wherein an article formed therefrom has a PENT of at least 1500. Also disclosed is a method of preparing a tubular article including obtaining a bimodal polyethylene having a density of from 0.930 g/cc to 0.960 g/cc and a molecular weight distribution of from 10 to 25, and processing the polyethylene under conditions where a specific energy input (SEI) is less than 300 kW.h/ton, and wherein the article has a PENT of at least 1500. Further disclosed is a method for controlling the degradation of polyethylene including polymerizing ethylene monomer, recovering polyethylene, extruding the polyethylene, and controlling the degradation of polyethylene by measuring the SEI to the extruder and adjusting throughput and/or gear suction pressure keep SEI less than 300 kW.h/ton, and forming an article.

US Patent:

20110267920, Nov 3, 2011

Filed:

Apr 28, 2010

Appl. No.:

12/768760

Inventors:

Carlos Corleto - Seabrook TX, US
Shane Steagall - Houston TX, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

B01F 7/16

US Classification:

366315

Abstract:

The present invention includes an apparatus and method for narrowing the residence time distribution of a continuous stirred-tank reactor, or CSTR, which includes the optional procedures of: decreasing the vertical cross-sectional area of the reactor's agitator blades; decreasing the RPM of the agitator blades; and increasing the reactor's L/D ratio. The CSTR can be used in the production of monovinylidene aromatic polymers, such as high impact polystyrene.