Jose Antonio Sosa

US Patent:

6353066, Mar 5, 2002

Filed:

Feb 9, 2001

Appl. No.:

09/780186

Inventors:

Jose M. Sosa - Deer Park TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F 238

US Classification:

526224, 526336, 526347

Abstract:

The present invention provides a method of producing a copolymer. The method comprises placing a vinylbenzene, such as styrene, in a reactor, placing a cross-linking agent, such as divinylbenzene in the reactor, placing a chain transfer agent, such as mercaptan, in the reactor and forming a poly vinylbenzene in the presence of the cross-linking agent and the chain transfer agent. In this embodiment, the concentration of the cross-linking agent ranges from about 150 ppm to about 400 ppm and a concentration of the chain transfer agent ranges from about 100 to about 400 ppm.

US Patent:

6437043, Aug 20, 2002

Filed:

Sep 13, 2001

Appl. No.:

09/951599

Inventors:

Jose M. Sosa - Deer Park TX
Billy J. Ellis - Spring TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F27902

US Classification:

525 53, 525263, 525271, 525316, 526 65, 526 82, 526 84

Abstract:

The present invention discloses processes and apparatus for the efficient and rapid conversion of an elastomeric monomer to a polymerized elastomer, and conjointly, reaction of the resultant rubbery polymer into a monovinylaromatic polymerization reaction to form a rubber-modified polymer; and more specifically teaches a method of polymerizing butadiene and reacting it with styrene monomer to form a transparent rubber-modified impact-resistant polystyrene material exhibiting elastomer concentrations that range from as low as 6 weight percent or lower, to as high as about 50 percent.

US Patent:

6486271, Nov 26, 2002

Filed:

Mar 9, 2001

Appl. No.:

09/803598

Inventors:

Jose M. Sosa - Deer Park TX
Aron T. Griffith - Humble TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F 606

US Classification:

526 65, 526 86, 526228, 5262305, 5262323, 526346, 525 53, 525387, 528501

Abstract:

The present invention provides to overcome the deficiencies of the prior art, the present invention provides a method of producing a polymer. The method includes taking a product stream from a monovinyl aromatic polymerization system wherein the product stream comprises a polymerized monomer and a monomer. The product stream is introduced into an up-flow heat exchanger in a presence of an initiator, such as a peroxide, that affects a polymerization of the monomer in the up-flow heat exchanger. The initiator may include a low-temperature initiator and a high-temperature initiator where a ratio of the high-temperature initiator to the low-temperature initiator can range from about 0:600 to about 50:600.

US Patent:

6489378, Dec 3, 2002

Filed:

Sep 14, 2000

Appl. No.:

09/661611

Inventors:

Jose M. Sosa - Deer Park TX
Lu Ann Kelly - Friendswood TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F25500

US Classification:

523201, 525232, 525241, 525242, 525244

Abstract:

High impact polystyrene having a predominant core-shell morphology is made by polymerizing styrene in the presence of polybutadiene using toluene as a solvent. The thermoplastic polymer composition is characterized by a continuous phase of polystyrene containing dispersed graft copolymer particles having a core-shell structure with a polystyrene core occluded inside a polybutadiene shell. The styrene is desirably batch polymerized using styrene/toluene mixtures of about 70:30 by weight in the presence of from about 9 to about 15 weight percent polybutadiene while flashing off the toluene solvent.

US Patent:

6569941, May 27, 2003

Filed:

Mar 30, 2001

Appl. No.:

09/823535

Inventors:

Jose M. Sosa - Deer Park TX
Billy Ellis - Spring TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F27900

US Classification:

525 53, 525316, 526 65, 526 88

Abstract:

The present invention discloses a process for manufacturing monovinylaromatic compounds containing an elastomer to provide increased toughness and strength. One particular embodiment of the invention discloses a process for manufacturing high impact polystyrene wherein styrene monomer containing a dissolved polybutadiene rubber is flowed into an elongated upflow stirred reactor containing three reaction zones, wherein the styrene and rubber are polymerized past the inversion point, then discharged to at least one additional reactor to continue their conversion to polymer.

US Patent:

6770716, Aug 3, 2004

Filed:

Mar 4, 2003

Appl. No.:

10/379052

Inventors:

Jose M. Sosa - Deer Park TX
Cyril Chevillard - Dickinson TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F27902

US Classification:

525316, 525245, 525263, 526135, 526228, 526230, 5262305, 526232, 5262323, 526346

Abstract:

It has been discovered that certain compounds serve as polymerization accelerators when employed together with peroxide initiators for the polymerization of vinylaromatic monomers. Suitable accelerators that increase the rate of decomposition of the peroxide initiator include, but are not necessarily limited to, hydroperoxides and/or metallic salts. Representative examples of suitable hydroperoxide accelerators include t-butyl hydroperoxide (TBH), cumyl hydroperoxide, and p-isopropyl cumyl hydroperoxide, whereas suitable metallic salt accelerators include cobalt naphthenate and cobalt acetoacetonate. Use of these accelerators when vinylaromatic monomers are polymerized in the presence of polybutadienes and peroxide initiators results in an increase in grafting as compared with similar copolymers made without the accelerator.

US Patent:

6822046, Nov 23, 2004

Filed:

Jan 17, 2002

Appl. No.:

10/052149

Inventors:

Jianbo Li - Houston TX
Jose M. Sosa - Deer Park TX
Aron Griffith - Humble TX

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08L 5100

US Classification:

525 86, 525256, 525263

Abstract:

A process is disclosed for improving the environmental stress crack resistance and other desirable properties of impact-resistant, elastomer-modified monovinylaromatic compounds, said process utilizing a combination of polymerization initiators, including perketals and peroxycarbonates.

US Patent:

6962960, Nov 8, 2005

Filed:

Jan 9, 2002

Appl. No.:

10/044759

Inventors:

Michel Daumerie - Houston TX, US
Douglas A. Berti - Nassau Bay TX, US
Jose Sosa - Deer Park TX, US
Aron T. Griffith - Humble TX, US

Assignee:

Fina Technology, Inc. - Houston TX

International Classification:

C08F002/06

US Classification:

526 73, 526335, 526337, 526346, 526347

Abstract:

A method and apparatus are disclosed for purifying copolymer compounds having monovinyl aromatic blocks and conjugated diene blocks by reducing the residual monomer content of the finished polymer. The method and apparatus includes a combination of heat exchangers and devolatilizers used in conjunction with a copolymerization reactor system.

Address:

10915 Kirkbud Dr, Houston, TX 77089

VIN:

3GNFC16J57G144759

Make:

CHEVROLET

Model:

SUBURBAN

Year:

2007