Gaylord M Kissinger

6486222, Nov 26, 2002

Apr 9, 2001

09/828721

Gaylord M. Kissinger - Evansville IN
Sheldon J. Shafer - Clifton Park NY
Harish R. Acharya - Clifton Park NY
Rudy Francois Alain J. Peemans - Erps-Kwerps, BE
Eduard H. Schlarmann - Bergen op Zoom, NL

General Electric Company - Schenectady NY

B01J 4702

521 28, 521 33, 568727, 568728, 568723

The invention is a catalytic ion exchange resin bed with low pressure drop, low catalyst breakage and low catalyst deactivation as well as an improved process for the production of bisphenol A employing such a catalytic ion exchange resin bed.

6545187, Apr 8, 2003

Sep 19, 2001

09/682560

Gaylord Michael Kissinger - Evansville IN
Fang Christine Chen - Evansville IN
James Cristopher Blubaugh - Evansville IN
Darlene Hope Nance - Mt. Vernon IN
Edward Brittain Stokes - Schenectady NY
Juan Rodriguez Ordonez - Madrid, ES
Jose M. Quintana - Murcia, ES

General Electric Company - Schenectady NY

C07C 3768

568724, 528196, 422190

Low-particulate dihydric aromatic compounds such as bisphenol-A that can be used in the synthesis of low-particulate polycarbonates are prepared by introducing into a desorber column containing a non-aggregate packing material an adduct of bisphenol and phenol and optionally a stripping gas. The column is maintained at an operating temperature that is sufficiently high and an operating pressure that is sufficiently low such that the adduct is distilled. The stream of phenol and the stripping gas is recovered from the top of the column. A second stream containing bisphenol that is substantially free of added particulate matter is recovered from the bottom of the column. This purified stream of bisphenol-A can further be used in a method of producing optical-grade polycarbonate.

6680270, Jan 20, 2004

Apr 24, 2001

09/681527

Rudy Francois Alain Joseph Peemans - Erps-Kwerps, BE
Alexey Kruglov - Evansville IN
Sheldon Jay Shafer - Clifton Park NY
Chuks O. Mbeledogu - Newburgh IN
Darlene Hope Nance - Mount Vernon IN
Karl Aaron Baro - Evansville IN
Emil Markov Georgiev - Evansville IN
Eduard Hendricus Schlarmann - Bergen op Zoom, NL
Gaylord Michael Kissinger - Evansville IN

General Electric Company - Schenectady NY

B01J 3852

502 33, 502 56

A method for regenerating deactivated sulfonated cation exchange catalysts comprises washing the deactivated catalyst with phenol-water mixtures comprising about 5-20 wt. % of water in phenol at a temperature of about 70-95Â C.

6703530, Mar 9, 2004

Feb 28, 2002

09/683898

Gaylord Michael Kissinger - Evansville IN
Allen Wai-Yee Ko - Evansville IN
Michael D. Szillat - Evansville IN
Brian T. Carvill - Evansville IN

General Electric Company - Schenectady NY

C07C 3916

568728

A method for producing bisphenol includes introducing a phenol and a ketone into a fixed, supported catalytic bed reactor system in a downflow mode, reacting the phenol and the ketone to form a reaction mixture, and recovering the bisphenol isomer from the reaction mixture. The preferred bisphenol isomer is bisphenol A, or p,pâ-bisphenol A, produced from the reaction of phenol and acetone. The reactor for producing the bisphenol A from the reaction of phenol and acetone includes an ion exchange resin catalyst disposed in a bed and packing randomly distributed throughout the ion exchange resin catalyst to improve heat transfer efficiency and reduce compression of the catalyst bed.

6891073, May 10, 2005

Dec 23, 2003

10/744883

Gaylord Michael Kissinger - Evansville IN, US
Allen Wai-Yee Ko - Evansville IN, US
Michael D. Szillat - Evansville IN, US
Brian T. Carvill - Evansville IN, US

General Electric Company - Schenectady NY

L07L039/16

568728, 422140, 422211, 422212

A method for producing bisphenol includes introducing a phenol and a ketone into a fixed, supported catalytic bed reactor system in a downflow mode, reacting the phenol and the ketone to form a reaction mixture, and recovering the bisphenol isomer from the reaction mixture. The preferred bisphenol isomer is bisphenol A, or p,p′-bisphenol A, produced from the reaction of phenol and acetone. The reactor for producing the bisphenol A from the reaction of phenol and acetone includes an ion exchange resin catalyst disposed in a bed and packing randomly distributed throughout the ion exchange resin catalyst to improve heat transfer efficiency and reduce compression of the catalyst bed.

20030028043, Feb 6, 2003

Aug 1, 1995

08/509891

GAYLORD M. KISSINGER - EVANSVILLE IN, US

C07C069/96

558/274000

Diaryl carbonates such as diphenyl carbonate is obtained in high yields and purity by melt crystallization from solutions of the crude product. Multi-stage crystallizations and controlled heating of the crystals purify the product.

57837333, Jul 21, 1998

Jun 13, 1996

8/664079

Gaylord Michael Kissinger - Evansville IN

General Electric Company - Pittsfield MA

C07C 3912
C07C 3916

568724

An integrated process for the preparation and recovery of a bisphenol based on the condensation reaction of a ketone and a phenol in the presence of an ion-exchange resin.

47205962, Jan 19, 1988

Dec 9, 1986

6/940243

Gaylord M. Kissinger - Evansville IN
Isabel M. Gomes de Matos - Evansville IN

General Electric Company - Mt. Vernon IN

C07C 3770

568724

A process for removing phenol from water which comprises contacting a phenol bearing water stream with a bisphenol-A melt thereby separating phenol from the water.