Thomas J Lynch

US Patent:

6433105, Aug 13, 2002

Filed:

Jun 9, 2000

Appl. No.:

09/591465

Inventors:

Thomas J. Lynch - Akron OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

L08F 842

US Classification:

525370, 5253328, 5253329, 5253331, 5253332, 525342, 525371

Abstract:

A butadiene-type polymer suitable for use as a processing aid in a rubber composition is formed by polymerizing butadiene or other conjugated diene monomers in a solvent, such as hexane, to form a polymer of relatively low molecular weight (around 30-40,000 g/mole). The polymer is coupled with a coupling agent, such as tin tetrachloride, to increase its molecular weight to a level at which conventional desolventizing processes may be used to remove the solvent from the mix. After desolventizing, the polymer is decoupled, by heating, to return the polymer to its original molecular weight.

US Patent:

8153707, Apr 10, 2012

Filed:

Nov 23, 2009

Appl. No.:

12/623524

Inventors:

Thomas Lynch - Chesterfield NJ, US
Wilbur Mardis - Holland PA, US

Assignee:

Elementis Specialties, Inc. - Hightstown NJ

International Classification:

C08C 1/08

US Classification:

523335, 524300, 524306, 524308

Abstract:

A film-forming composition including a coalescent aid comprising fatty acid esters of ethylene glycol and/or propylene glycol having the formula RCOO[(EO)(PO)]H wherein RCO is a linear saturated aliphatic acyl group, or a combination thereof, having from about 6 to about 22 carbon atoms, EO is —CHCHO—, PO is —CHCH(CH)O— or —CH(CH)CHO— or a combination thereof, where the acyl radical is bonded to a carbon atom of the EO or PO radical, and x=0 to about 5, y=about 0 to about 5, the sum of x and y is equal or greater than 0. 5, z=1 to about 5, and (x+y)z is less than or equal to 6. It is to be understood that x, y, and z are average values for the composition.

US Patent:

20120190768, Jul 26, 2012

Filed:

Apr 3, 2012

Appl. No.:

13/438498

Inventors:

Thomas LYNCH - Chesterfield NJ, US
Wilbur MARDIS - Holland PA, US

Assignee:

ELEMENTIS SPECIALTIES, INC. - Hightstown NJ

International Classification:

C09D 113/02
C09D 5/14

US Classification:

523122, 523335

Abstract:

A film-forming composition including a coalescent aid comprising fatty acid esters of ethylene glycol and/or propylene glycol having the formula RCOO[(EO)(PO)]H wherein RCO is a linear saturated aliphatic acyl group, or a combination thereof, having from about 6 to about 22 carbon atoms, EO is —CHCHO—, PO is —CHCH(CH)O— or —CH(CH)CHO— or a combination thereof, where the acyl radical is bonded to a carbon atom of the EO or PO radical, and x=0 to about 5, y=about 0 to about 5, the sum of x and y is equal or greater than 0.5, z=1 to about 5, and (x+y)z is less than or equal to 6. It is to be understood that x, y, and z are average values for the composition.

US Patent:

50536311, Oct 1, 1991

Filed:

Apr 2, 1990

Appl. No.:

7/503817

Inventors:

Robert M. Perlman - San Jose CA
Prem Sobel - Sunnyvale CA
Brian D. McMinn - Austin TX
Robert C. Thaden - Austin TX
Glenn A. Tamura - Austin TX
Thomas W. Lynch - Austin TX

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

G06F 738

US Classification:

364748

Abstract:

A floating point processor for pipelining a series of calculations of simple and compound arithmetic operations includes at least one arithmetic operation unit for performing arithmetic operations on input operands provided to the arithmetic operation units and at least one accumulator for storing the results of the arithmetic operations performed by the arithmetic operation unit. The results stored in the accumulators are then provided to the arithmetic operation units. Arithmetic operations are pipelined through the floating point processor by a series of latches which sequence the input operands, results produced by the arithmetic operation units using the input operands, and results produced by the arithmetic operation units using the input operands and the accumulated operands.

US Patent:

61977136, Mar 6, 2001

Filed:

Dec 19, 1997

Appl. No.:

8/994584

Inventors:

Thomas J. Lynch - Akron OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

B01J 3100
B01J 3700
C08F 402
C08F 460

US Classification:

502102

Abstract:

The present invention is directed to a process for the preparation of a gel-free hydrocarbon solution containing a lanthanide rare earth series compound by dissolving or synthesizing a lanthanide compound in an inert hydrocarbon solvent with a Lewis acid in an amount sufficient to prevent formation of highly viscous solutions. The present invention is also directed to the use of the gel-free Ln solutions formed by the recited process as co-catalysts for the polymerization of dienes. The Lewis acid is a group 2, 12, 13, 14 or 15 halide or organohalide, or a transition metal halide, excluding aluminum trialkyls.

US Patent:

61776033, Jan 23, 2001

Filed:

Jun 12, 1998

Appl. No.:

9/096905

Inventors:

Thomas J. Lynch - Akron OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C07C 202

US Classification:

585507

Abstract:

The instant invention provides a process for substantially reducing the polymer cement viscosity or reducing the molecular weight distribution of the a conjugated diene polymer synthesized by using a charge of catalytically effective amounts of a rare earth catalyst and an organo magnesium component by adding an organo zinc component to the charge in an amount and under conditions sufficient to reduce the polymer cement viscosity. The invention also contemplates a catalyst compostion for substantially reducing the polymer cement viscosity of a polymer product as well the resultant polymer product.

US Patent:

50580485, Oct 15, 1991

Filed:

Apr 2, 1990

Appl. No.:

7/503819

Inventors:

Smeeta Gupta - Saratoga CA
Robert M. Perlman - San Jose CA
Thomas W. Lynch - Austin TX
Brian D. McMinn - Austin TX

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

G06F 738

US Classification:

364748

Abstract:

A floating point processor for performing arithmetic operations on floating point numbers includes a first arithmetic operation unit configured to operate on normalized numbers and a second arithmetic operation unit which includes a denormalizer for denormalizing normalized numbers and a normalizer for normalizing denormalized numbers. Each arithmetic operation unit has first and second inputs for receiving first and second operands, respectively, and an output for transmitting a result of the arithmetic operation. When an denormalized operand is presented as an input to the arithmetic operation unit configured to operate on normalized numbers, the denormalized input operand is redirected through the second arithmetic unit for normalization of the denormalized operand. The first arithmetic operation unit then performs its arithmetic operation using the normalized input operands. The result of the arithmetic operation is then analyzed to determine whether it has a zero or negative exponent.

US Patent:

58666508, Feb 2, 1999

Filed:

Jul 11, 1997

Appl. No.:

8/893868

Inventors:

David F. Lawson - Uniontown OH
Hideo Takeichi - Akron OH
William L. Hergenrother - Akron OH
Thomas J. Lynch - Akron OH
James Oziomek - Cuyahoga Falls OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C08K 336
C08C 1922

US Classification:

524572

Abstract:

The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino group producing terminator to form an amine functionalized diene elastomer; compounding the amine functionalized diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits improved reduced hysteresis, or highly balanced wet traction, rolling resistance, snow/ice traction, and mechanical strength when compounded with silica filler and vulcanized, in the tire.