Chang M Hsu, 807698 Galloway Ct, Gilroy, CA 95020

5462680, Oct 31, 1995

Apr 19, 1994

8/229510

Stanley J. Brois - Westfield NJ
Abhimanyu O. Patil - Westfield NJ
Wolfgang W. Schulz - Lebanon NJ
Chang S. Hsu - Bridgewater NJ
Richard T. Garner - Berkeley Heights NJ

Exxon Research & Engineering Co. - Florham Park NJ

C10M12700

252 9

This invention relates to novel compositions of matter comprising free radical adducts of a fullerene with one or more saturated hydrocarbons having a number average molecular weight ranging from about 200 to about ten million. Attachment of saturated hydrocarbons to as many as fourteen sites on the fullerene surface can be achieved via free radical initiated reactions. Fullerenes also add to saturated hydrocarbons with functional groups selected from the group consisting of hydroxy, carboxy, and carboalkoxy radicals in the presence of a free radical initiator. Said radical adducts of substantially saturated hydrocarbons with fullerenes react further with alkylamines and polyamines to produce new compositions. The radical adducts, and their aminated derivatives are useful as dispersants and viscosity modifiers in lubricants. In the presence of free radical initiators, said fullerenes can also crosslink substantially saturated polymers having number average molecular weight ranging from about 50,000 to about 500,000.

6060325, May 9, 2000

Sep 16, 1997

8/931563

Chang Samuel Hsu - Bridgewater NJ

Exxon Research and Engineering Company - Florham Park NJ

G01N 3300

436124

The present invention is directed to a method for determining the halogen toxicity level in a sample containing halogenated compounds, specifically halogen containing rubbers by utilizing thermal electrons formed inside a mass spectrometer operated at negative ion electron capture conditions. The method allows for detection of the toxic species from the parts per million level, down to the parts per billion levels. The method comprises the steps of (a) ionizing a reagent gas capable of producing thermal electrons having a thermal energy of 0 to 10 eV with the a polychromatic ion source of a mass spectrometer to produce thermal electrons having thermal energy of 0 to 10 eV, (b) capturing said thermal electrons with a halogen containing compound to form halogen atomic anions or halogen atomic cluster anions wherein said halogen containing compound has been passed through a gas chromatograph prior to said capturing of thermal electrons and wherein a mass spectrogram is obtained following said capturing of electrons, (c) speciating and quantifying said halogen atomic anions or halogen atomic cluster anions using a mass chromatogram produced from a combination of said gas chromatography and said mass spectrometer.

5294349, Mar 15, 1994

Aug 4, 1992

7/925356

George M. Kramer - Berkeley Heights NJ
Edwin R. Ernst - Belle Meade NJ
Chang S. Hsu - Bridgewater NJ
Gopal H. Singhal - Baton Rouge LA
Peter S. Maa - Baton Rouge LA

Exxon Research and Enginnering Company - Florham Park NJ

C10G 100
C10G 106
C10G 108

208400

A process for hydroprocessing coal to hydrocarbon oils wherein coal is depolymerized at low temperatures by contacting finely divided coal with a hard acid and soft base. The depolymerized coal is then hydroprocessed to hydrocarbon oils by forming a mixture with a coal conversion catalyst or precursor thereof, and hydroprocessing the mixture at temperatures of from 250. degree. to 550. degree. C. and hydrogen partial pressures of from 2100 to 35000 kPa.

5958224, Sep 28, 1999

Aug 14, 1998

9/134300

Teh Chung Ho - Bridgewater NJ
Chang Samuel Hsu - Bridgewater NJ
Gerald Dennis Dupre - Baton Rouge LA
Ronald Liotta - Kingswood TX
Viktor Buchholz - Clinton NJ

Exxon Research and Engineering Co - Florham Park NJ

C10G 2900

208240

The instant invention is directed to a process for removing hard sulfurs from hydrocarbon streams by selectively oxidizing hard sulfurs in a hydrotreated stream, under oxidizing conditions in the presence of an effective amount of an oxidizing agent, wherein the oxidizing agent is a peroxometal complex and wherein the hard sulfurs are oxidized into the corresponding sulfoxides and sulfones.

5298157, Mar 29, 1994

Aug 4, 1992

7/925337

George M. Kramer - Berkeley Heights NJ
Edwin R. Ernst - Belle Meade NJ
Chang S. Hsu - Bridgewater NJ

Exxon Research and Engineering Company - Florham Park NJ

C10G 100

208400

A process for depolymerizing coal at low temperatures by contacting finely divided coal with a hard acid and soft base.

5644129, Jul 1, 1997

Feb 2, 1996

8/595681

Chang S. Hsu - Bridgewater NJ
Saul C. Blum - Edison NJ
Zhenmin Liang - Branchburg NJ
Peter B. Grosshans - Whitehouse Station NJ
Winston K. Robbins - New Providence NJ

Exxon Research & Engineering Company - Florham Park NJ

B01D 5944
H01J 4900

250282

The present invention is a method to distinguish and measure normal paraffins, isoparaffins, and naphthenes in a saturated hydrocarbon mixture. The method includes the step of field-ionizing hydrocarbon mixture; separating the normal paraffins, isoparaffins and naphthenes as a separate saturates class; and detecting the normal paraffins as molecular ions, naphthenes as molecular ions, and isoparaffins as fragment ions.