Nicolai A Favstritsky

US Patent:

52249824, Jul 6, 1993

Filed:

Mar 6, 1992

Appl. No.:

7/846377

Inventors:

Charles C. Shin - Lafayette IN
Nicolai A. Favstritsky - Lafayette IN

Assignee:

Great Lakes Chemical Corporation - W. Lafayette IN

International Classification:

A01N 4308

US Classification:

504294

Abstract:

Methods and compositions for the protection of plant tissue from damage upon exposure to certain environmental and handling stresses, and to assist plant tissue in recovering from environmental and handling stress injuries, include the application of an effective amount of stress-protectant compositions selected from the group consisting of tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine and mixtures thereof. The compositions are applied as aqueous solutions containing between about 0. 005 and about 25 wt % of the stress-protectant components. Surfactants may be included to improve application of the compositions to the plant tissues.

US Patent:

48328731, May 23, 1989

Filed:

Oct 9, 1987

Appl. No.:

7/107088

Inventors:

Nicolai A. Favstritsky - Lafayette IN
Dennis M. Borden - West Lafayette IN

Assignee:

Great Lakes Chemical Corporation - West Lafayette IN

International Classification:

C09K 2100
C07C 1710
C08C 1912
C08C 1914

US Classification:

252601

Abstract:

Polybrominated higher alkylbenzenes may be produced by reacting the corresponding hydrocarbon material with bromine chloride in an excess bromine reaction medium in the presence of an antimony halide catalyst.

US Patent:

54591210, Oct 17, 1995

Filed:

Apr 21, 1994

Appl. No.:

8/230624

Inventors:

Charles C. Shin - Lafayette IN
Nicolai A. Favstritsky - Lafayette IN
Brent M. Sanders - Lafayette IN

Assignee:

Great Lake Chemical Corporation - West Lafayette IN

International Classification:

A01N 4308
A01N 4316
A01N 3102

US Classification:

504114

Abstract:

A method for reducing plant water loss by closing stomatal openings and reducing the transpiration rate. In particular, a water loss reducing composition made of an osmo-adjusting solute such as sorbitol or xylitol is applied to plants. The solution is applied to the root zone by drenching regularly or prior to water deficiency, and preferably includes between about 0. 5 and about 25 weight percent of the water loss reducing and conditioning agent.

US Patent:

56205856, Apr 15, 1997

Filed:

Jun 6, 1995

Appl. No.:

8/466405

Inventors:

Ahmad Dadgar - West Lafayette IN
Jonathan N. Howarth - West Lafayette IN
Rodney H. Sergent - West Lafayette IN
Nicolai A. Favstritsky - West Lafayette IN
Julie A. McKeown - West Lafayette IN
Dennis W. Borden - West Lafayette IN
Brent M. Sanders - West Lafayette IN
Jane Likens - West Lafayette IN

Assignee:

Great Lakes Chemical Corporation - West Lafayette IN

International Classification:

C25B 120

US Classification:

205565

Abstract:

A process for leaching gold, silver, platinum and palladium wherein an aqueous leaching solution containing bromine and bromide ion contacts a precious metal source to produce an aqueous leachate. A precursor composition for producing an aqueous leaching solution for leaching gold, silver, platinum and palladium. A process for electrogenerating bromine and a process for leaching gold, silver, platinum and palladium wherein bromine is electrogenerated and contacts a precious metal source to produce an aqueous leachate. A process for leaching gold, silver, platinum and palladium wherein bromine is electrogenerated from a solution containing chloride ions and bromide ions.

US Patent:

51244047, Jun 23, 1992

Filed:

Aug 21, 1990

Appl. No.:

7/570406

Inventors:

Ray W. Atwell - W. Lafayette IN
Donna L. Collison - Lafayette IN
Nicolai A. Favstritsky - Lafayette IN
Harry A. Hodgen - Battle Ground IN
Enrico J. Termine - Lafayette IN

Assignee:

Great Lakes Chemical Corp. - W. Lafayette IN

International Classification:

C08L 5106

US Classification:

525 72

Abstract:

Described are polypropylene molding compositions which have surprisingly good physical properties in combination with flame retardancy, which include copolymers represented by the formula: ##STR1## wherein n is >1, P is isotactic or syndiotactic polypropylene, and S is a grafted side chain having brominated monomeric units of the formula: ##STR2## wherein x=1 to 4, R. sub. 1 is H or CH. sub. 3, and R. sub. 2 is H or a C. sub. 1-4 lower alkyl group. Polymer blends including such graft copolymers and methods for making such flame retardant polymer compositions are also described.

US Patent:

RE353086, Jul 30, 1996

Filed:

Mar 13, 1995

Appl. No.:

8/432109

Inventors:

Nicolai A. Favstritsky - Lafayette IN
Rastko I. Mamuzic - W. Lafayette IN

Assignee:

Shell Oil Company - Houston TX

International Classification:

C08F29704
C08F29708

US Classification:

525314

Abstract:

A block copolymer of polyalkylene and halogenated polystyrene comprises the formula: S'--A--(A--S'). sub. m in which m is 0, 1, 3 or 4, A is a saturated polyalkylene, and S' is a nuclear brominated polystyrene having from about 0. 5 to about 5 bromines per styrene unit. The polystyrene blocks are substantially free of halogen other than bromine and chlorine, and the polyalkylene is substantially free of halogen. The compositions retain the elastomeric properties of the non-halogenated form of the compounds while having significantly reduced flammability.

US Patent:

52760065, Jan 4, 1994

Filed:

Aug 13, 1992

Appl. No.:

7/929262

Inventors:

Charles C. Shin - West Lafayette IN
Nicolai A. Favstritsky - West Lafayette IN
Ahmad Dadgar - West Lafayette IN

Assignee:

Great Lakes Chemical Corp. - W. Lafayette IN

International Classification:

A01N 4308

US Classification:

504140

Abstract:

Aqueous plant cryoprotectant composition containing between about 0. 005 and 25 wt. % tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine or mixtures thereof and method of increasing the resistance of plant tissue to damage caused by freezing conditions comprising applying to the plant tissue surfaces at ambient non-freezing temperatures an aqueous solution containing an effective amount of tetrahydrofurfuryl alcohol, tetrahydrofurfuryl amine or mixtures thereof.

US Patent:

53692020, Nov 29, 1994

Filed:

Mar 22, 1994

Appl. No.:

8/215803

Inventors:

Ray W. Atwell - West Lafayette IN
Harry A. Hodgen - Battle Ground IN
William R. Fielding - West Lafayette IN
Nicolai A. Favstritsky - Lafayette IN
Enrico J. Termine - Lafayette IN

Assignee:

Great Lakes Chemical Corporation - West Lafayette IN

International Classification:

C08F 1216
C08F 1416

US Classification:

526293

Abstract:

A process for the solventless polymerization of brominated styrenes includes blending monomers of brominated styrenes with a polymerization initiator, feeding the monomer/polymerization initiator mix into a prepolymerizer wherein the monomers begin to polymerize, and feeding the monomer/polymerization initiator mix and the partially polymerized bromostyrene into a screw-type extruder to drive the polymerization to a high degree of completion in a short period of time. Optionally, the monomers may be preheated before mixing with the initiator, or a heater may be included in the prepolymerizer.