Yoon S Song

7253231, Aug 7, 2007

Jan 31, 2005

11/047067

Cathy C. Devlin - Richmond VA, US
Charles A. Passut - Midlothian VA, US
Joe S. Bradley - Midlothian VA, US
Michael A. Danylo - Midlothian VA, US
Yoon Song - Richmond VA, US
Sanjay Srinivasan - Midlothian VA, US
Zhaoyao Joe Qiu - Baton Rouge LA, US
Errol Joseph Olivier - Baton Rouge LA, US
Patric Meessen - La Calamine, BE
Gerhard Van Vliet - Maastricht, NL
Gerardus Arnoldus Rademakers - Heerlen, NL
Johannes Hendrik Geesink - Schinnen, NL

Afton Chemical Corporation - Richmond VA

C08F 255/00
C08F 255/02
C08L 51/06

525 64, 525 69, 525285, 525301, 5253261, 525293, 525375, 508225, 508231

A novel highly grafted, multi-functional olefin copolymer is provided comprising an additive reaction product of a method comprising reacting acylating agent with an olefin copolymer having a number average molecular weight greater than about 1,000 in the presence of a free radical initiator and essentially free of hydrocarbon solvent in an extruder to provide an olefin copolymer intermediate comprising an acylated olefin copolymer having a degree of grafting (DOG) of at least 0. 5 wt. %, which copolymer intermediate's molecular weight is reduced, vacuum stripped of unreacted components, pelletized, dissolved in a neutral oil (preferably with inert gas sparging), and further reacted with a polyamine to provide a grafted multi-functional olefin copolymer viscosity modifier, and lubricating oil concentrates and compositions containing the same and uses thereof.

7700684, Apr 20, 2010

Dec 9, 2004

11/007346

Joseph S. Bradley - Midlothian VA, US
Michael A. Danylo - Midlothian VA, US
Yoon Soo Song - Richmond VA, US
Anthony F. Fagan - Chesterfield VA, US

Afton Chemical Corporation - Richmond VA

C08L 31/00

524556, 524558

A novel highly grafted, functionalized olefin polymer is provided comprising the reaction product of a method comprising reacting an acylating agent with a mixture comprising an olefin polymer having a number average molecular weight of between about 5,000 to about 100,000 and a diluent in the presence of a free radical initiator to provide an acylated olefin polymer which is further reacted with a polyamine to provide the grafted functionalized olefin polymer dispersant. Lubricating oil concentrates and compositions containing the highly grafted, functionalized olefin polymer and uses thereof also are provided.

20070191242, Aug 16, 2007

Sep 17, 2004

10/943375

Sanjay Srinivasan - Midlothian VA, US
Yoon Song - Richmond VA, US
Joseph Strukl - Midlothian VA, US
Peter Growcott - Hampshire, GB
Paul Griffin - Glen Allen VA, US
Akhilesh Duggal - Midlothian VA, US

C10M 143/00

508591000, 585010000, 585012000

A lubricant composition method of using the lubricant composition. The lubricant composition contains a base oil of lubricating viscosity and from about 5 to about 30 percent by weight of an additive comprising a shear stable olefin copolymer derived from a copolymer having a number average molecular weight ranging from about 50,000 to about 250,000. The shear stable olefin copolymer has a shear stability index of less than about 40, a polydispersity of not more than about 1.5, and a thickening efficiency of greater than about 1.8, and provides viscosity index improving properties to the lubricant composition.

46277358, Dec 9, 1986

Feb 7, 1985

6/699335

Philip M. Rose - Naperville IL
Yoon S. Song - Lisle IL

Standard Oil Company (Indiana) - Chicago IL

B01F 700

366329

The double reverse helix agitator with an internal conveying screw is used in a gas phase olefin polymerization reactor having at least one polymerization section and has helical flights defined by helical blades which are mounted to a shaft, which extend in opposite axial directions and which have approximately the same radius from the axis of rotation of the agitator. The shaft has a spiral screw thread thereon for conveying polymer particles axially by the agitator through a reactor vessel.

46633928, May 5, 1987

May 16, 1986

6/864067

Yoon S. Song - Lisle IL
Henry A. McCandless - Godfrey IL

Amoco Corporation - Chicago IL

C08F 834
C08L 2330
C08L 2332
C08L 2336

525155

A process for the preparation of oil-soluble Mannich condensation products wherein an amine is prereacted with a sulfonic acid or ammonium sulfonate, oleic acid, and an oxidized olefin polymer and the prereaction product is reacted with an aldehyde.

49632779, Oct 16, 1990

Oct 20, 1988

7/260254

David J. Fenoglio - Wheaton IL
Yoon S. Song - Naperville IL
Robert J. Basalay - Naperville IL

Amoco Corporation - Chicago IL

C10M10558

252 515A

A method is described for improving the viscosity storage stability of a Mannich base condensation product of an oxidized polyolefin, formaldehyde, and an amine. This method involves contacting such Mannich base condensation product with a lower alkyl peroxide, a lower alkyl hydroperoxide or an aryl(lower)alkyl hydroperoxide at a temperature of about 250. degree. F. to about 400. degree. F. for a time period sufficient to provide an oxidized product.

48083259, Feb 28, 1989

Mar 30, 1987

7/031355

Yoon S. Song - Lisle IL
Robert J. Basalay - Naperville IL

Amoco Corporation - Chicago IL

C10M15916

252 515A

Improved dispersant and VI-improving Mannich composition having reduced susceptibility to viscosity increase during storage, which composition comprises a physical blend prepared by admixing a phenolic compound with a Mannich condensation product obtained from the Mannich reaction of an oxidized polymer, an amine and a formaldehyde-yielding reagent.

60137355, Jan 11, 2000

Feb 13, 1998

9/023555

Munmaya K. Mishra - Richmond VA
Yoon S Song - Richmond VA
Akhilesh Duggal - Midlothian VA

Ethyl Corporation - Richmond VA

C08F29300
C08F 2012

525299

A continuous process for the preparation of linear, branched and star-polymers via anionic polymerization of acrylic monomers, linear, branched and star-polymers obtained by the process and lubricating oil compositions thereof.