1
Sandor Karady, Benjamin Marcune: Efficient synthesis of cyclopropylacetylene. Merck & Co, Ayler, K R Walton, M Winokur, June 6, 2000: US06072094 (76 worldwide citation)

An efficient and facile process for the preparation of cyclopropylacetylene from thioanisole and cyclopropyl substituted ketones or aldehydes is disclosed.


2
William B Diana, Joseph V Cusumano, Keith R Gorda, Jacob Emert, William B Eckstrom, David C Dankworth, Jon E Stanat, James P Stokes: Dispersant additives and process. Exxon Chemical Patents, K R Walton, J B Murray Jr, August 10, 1999: US05936041 (52 worldwide citation)

The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreact ...


3
Herve M Cheradame, Frank J Chen, Jon E R Stanat, Hung A Nguyen, Behrooz R Tabar: Direct synthesis by living cationic polymerization of nitrogen-containing polymers. Exxon Chemical Patents, K R Walton, H L Cohen, August 22, 1995: US05444135 (50 worldwide citation)

A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerization and function ...


4
Antonio Gutierrez, Jacob I Emert, James P Stokes, Warren A Thaler, William D Diana, Keith R Gorda, William B Eckstrom, David C Dankworth, Joseph V Cusumano: Derivatives of polyamines with one primary amine and secondary of tertiary amines. Exxon Chemical Patents, K R Walton, J F Hunt, July 1, 1997: US05643859 (42 worldwide citation)

A dispersant derivatized from a functionalized hydrocarbon and a polyamine having one primary amine and 1-10, preferably 3-8 secondary or tertiary amines; preferably where said functionalized hydrocarbon is a Koch-derived hydrocarbon.


5
Jeremy R Spencer, Robert W Russell, Ronald P Wangner: Process for preparing polyalkenyl substituted C.sub.4 to C.sub.10 dicarboxylic acid producing materials. Exxon Chemical Patents, K R Walton, July 7, 1998: US05777025 (35 worldwide citation)

A low-sediment, low-tar, chlorine-free thermal process for preparing oil-soluble polyalkenyl derivatives of monounsaturated C.sub.4 -C.sub.10 dicarboxylic acid producing compounds is disclosed. The process involves reacting the dicarboxylic acid producing compound with a polyalkene at high temperatu ...


6
David C Dankworth, William H Cross, Joseph V Cusumano, William D Diana, William B Eckstrom, Jacob I Emert, Keith R Gorda, Robert M Koros, Harold W Margo, Jon E Stanat: Continuous process for production of functionalized olefins. Exxon Chemical Patents, K R Walton, J F Hunt, July 22, 1997: US05650536 (30 worldwide citation)

A continuous process for functionalizing olefins, especially polymer olefins in a CSTR or pipe reactor. Esters are preferably produced by continuous reaction of the olefin with carbon monoxide and a nucleophilic trapping agent. The liquid-filled pipe reactor operates in plug flow with static mixers ...


7
Won R Song, Albert Rossi, Howard W Turner, Howard C Welborn, Robert D Lungberg, Antonio Gutierrez, Robert A Kleist: Ethylene alpha-olefin polymer substituted mono-and dicarboxylic acid lubricant dispersant additives. Exxon Chemical Patents, J B Murray Jr, K R Walton, January 11, 1994: US05277833 (30 worldwide citation)

The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 10,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or a ...


8
Jack Emert, Robert Dean Lundberg: High functionality low molecular weight oil soluble dispersant additives useful in oleaginous composition. Exxon Chemical Patents, K R Walton, J B Murray, May 26, 1998: US05756428 (28 worldwide citation)

Hydrocarbyl substituted C.sub.4 to C.sub.10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a number arrange molecular weight of about 700 to 120 ...


9
Jacob Emert, Albert Rossi, Salvatore Rea, Jeffrey William Frederick, Mahn Won Kim: Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives. Exxon Chemical Patents, K R Walton, H L Cohen, September 2, 1997: US05663130 (23 worldwide citation)

The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than abo ...


10
Herve M Cheradame, Robert D Lundberg, Frank J Chen, Jean de la Crois Habimana: Terminally-substituted polymeric compositions from cationically polymerizable monomers and initiators. Exxon Chemical Patents, J B Murray Jr, J F Hunt, K R Walton, August 9, 1994: US05336745 (21 worldwide citation)

A method is provided for the direct synthesis of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. ...