THANH B NGUYEN
Nursing at Bayhill Dr, Sugar Land, TX

7973111, Jul 5, 2011

May 28, 2004

10/857188

Thanh Tri Nguyen - Sugar Land TX, US
Tom Eugene Cushman - Humble TX, US
John Stevenson - Crosby TX, US
Alan Bitzer - Houston TX, US

Fina Technology, Inc. - Houston TX

C08F 2/38, B01J 19/00, B01J 8/18

526 82, 526 83, 526 84, 526 85, 422131, 422139

Disclosed is a method to safely terminate a runaway reaction within a reaction vessel, comprising: sensing an increase in pressure in the reaction vessel, opening a barrier blocking a flow path into the reactor, wherein the barrier opening is achieved via a mechanical response to the sensed increase in pressure, and injecting a kill agent into the reaction vessel via the opened flow path, thereby terminating the reaction. Also disclosed is a system for performing the method. The system functions without an external electrical source and is therefore compliant with ASME standards.

8192695, Jun 5, 2012

May 4, 2005

11/121795

Laurent Doucet - Pierre-Bénite, FR
Philippe Tanguy - Outremont, CA
Doug Berti - Houston TX, US
Thanh Nguyen - Sugar Land TX, US
Guillaume Franc - Levallois Perret, FR
Jay Reimers - Houston TX, US

Fina Technology, Inc. - Houston TX

B01J 19/00, B01J 19/18, B01J 8/02

422224, 422129, 422131, 422135, 422211, 422223, 422225

Disclosed is a reactor or sparging vessel suitable for use for reaction mixtures containing vapor and/or gas bubbles. It comprises a mechanical agitation means suitable to redistribute flow radially and at least one perforated plate suitable to provide resistance to axial flow. In desirable embodiments it may include at least one electrically or hydraulically-stimulated rotatable shaft upon which at least one blade impeller is mounted, and at least one perforated plate oriented such that it provides resistance to axial flow. The perforated plate may have channels therethrough whose cross-sectional dimension is smaller than the projected average diameter of the vapor and/or gas bubbles. The reactor or sparging vessel offers improved flow dynamics, including reduced back mixing and narrowed residence time distribution. A method of employing the reactor for a reaction mixture containing vapor and/or gas bubbles is also disclosed. An impeller blade having two curvatures is also disclosed.

7488774, Feb 10, 2009

Mar 20, 2006

11/384737

Doug Berti - Houston TX, US
Aron Griffith - League City TX, US
Jay Reimers - Houston TX, US
Thanh Nguyen - Sugar Land TX, US

Fina Technology, Inc. - Houston TX

C08F 2/02, B01J 19/24

525 53, 525243, 525316, 422134

A continuous process for producing high impact polystyrene comprising feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture, polymerizing the reaction mixture in said linear flow reactor to at least the phase inversion point of the mixture, and feeding the reaction mixture from the first linear flow reactor to a second reactor for post-inversion polymerization of the mixture. A method of producing an elastomer-reinforced polymer comprising inverting a reaction mixture comprising at least one vinyl aromatic monomer, an elastomer, and a free radical initiator in a plug flow reactor. A high impact polystyrene reactor system, comprising a linear flow reactor having an inlet and an outlet, and a continuously stirred tank reactor having an inlet in fluid communication with the linear flow reactor outlet and receiving an effluent from the linear flow reactor.

7511101, Mar 31, 2009

May 13, 2005

11/128803

Thanh T. Nguyen - Sugar Land TX, US
Jay L. Reimers - Houston TX, US

Fina Technology, Inc. - Houston TX

C08F 279/00, F28D 7/00, F24H 3/00, F24H 3/02, B01J 19/24, C07C 1/00

525316, 422196, 422197, 422198, 422200, 422209, 422224, 422131, 165 47, 165 481, 165 53, 165 54, 165 56, 165 89, 165 92, 1651091, 165120, 165125, 165177, 165181, 165182, 165183, 525 52, 585241

A plug flow reactor having an inner shell surrounded by outer shell and having at least one annular flow passage therebetween can be used to prepare compositions, including polymers. The plug flow reactor also includes inlet port an outlet port and a plurality of exchanger tubes wherein the exchanger tubes are in fluid communication to the at least one annular flow passage. Polystyrene and high impact polystyrene can be prepared using the reactor.

6143833, Nov 7, 2000

Jun 11, 1999

9/262182

Brad Klussmann - Houston TX
Jon Schweinle - Seabrook TX
Doug Berti - Nassau Bay TX
Thanh Nguyen - Sugar Land TX
Jose Sosa - Deer Park TX

Fina Technology, Inc. - Houston TX

C08F27902

525316

A method and apparatus for use in making high impact polystyrene by polymerizing butadiene into polybutadiene, continuously exchanging styrene monomer for the solvent used to produce the polybutadiene, and polymerizing the resultant polybutadiene/styrene solution into high impact polystyrene. Apparatus is disclosed that includes butadiene and solvent preparation means, additive metering means, butadiene polymerization means, solvent exchange means, solvent recovery means and styrene polymerization means.

6864331, Mar 8, 2005

Dec 9, 2003

10/731729

Jay Reimers - Houston TX, US
Thanh Nguyen - Sugar Land TX, US

Fina Technology, Inc. - Houston TX

C08F002/00

526 59, 526346, 526352, 526348, 356319, 356326

Disclosed is a process for preparing a polymer. The process includes at least one process stream and the process stream has at least one characteristic of interest. The process further includes passing the process stream past a sensor probe connected to a near-IR spectrophotometer and passing light from a light source through the probe and into the spectrometer wherein the light source, spectrometer and sensor probe are connected by a fiber optic cable. The effect of the interaction of the process stream and the light passing through the senor probe is measured and used to define a value for the characteristic of interest. The value for the characteristic of interest is a component of an algorithm and the algorithm is used, in real time, to monitor, control, or monitor and control the process for preparing a polymer.

8066954, Nov 29, 2011

Dec 17, 2008

12/337357

Thanh T. Nguyen - Sugar Land TX, US
Jay L. Reimers - Houston TX, US

Fina Technology, Inc. - Houston TX

B01J 19/00, B01J 19/18, B01J 10/00, F28D 7/00

422198, 422129, 422131, 422200, 422201, 422224, 422225, 422600, 422630, 422642, 422644, 422645, 422646

A plug flow reactor having an inner shell surrounded by outer shell and having at least one annular flow passage therebetween can be used to prepare compositions, including polymers. The plug flow reactor also includes inlet port , an outlet port and a plurality of exchanger tubes wherein the exchanger tubes are in fluid communication to the at least one annular flow passage. Polystyrene and high impact polystyrene can be prepared using the reactor.

2007014, Jun 21, 2007

Mar 20, 2006

11/384596

Doug Berti - Houston TX, US
Thanh Nguyen - Sugar Land TX, US
Philippe Tanguy - Outremont, CA
Marie-Noelle Moutaillier - Maxilly, FR
Jay Reimers - Houston TX, US

C08F 136/00

526335000, 526346000

A method for removing heat from a horizontal linear flow reactor, comprising introducing vapor bubbles into a liquid medium in the reactor and removing the vapor from the reactor. A method of producing an elastomer reinforced polymer comprising autorefrigerating the reactants in a horizontal linear flow reactor in which both initial polymerization and phase inversion occur. A method of removing heat from a horizontal plug flow reactor comprising aerating the reactants within the reactor, wherein the aeration promotes radial mixing of the reactants but does not substantially promote axial mixing of the reactants. A horizontal linear flow reactor, comprising a horizontal reaction chamber having one or more mechanical flow facilitators disposed therein and a sparger attached to the bottom of at least a portion of the reaction chamber.