Stephen M Korenkiewicz from Lake Zurich, IL, age 70

Resumes

Senior Scientist

view source

Location:

24370 west Mary Dl Ave, Lake Zurich, IL

Industry:

Chemicals

Work:

The Valspar Corporation Ltda
Senior Scientist

Education:

Michigan Technological University 1972 - 1976
Bachelors, Bachelor of Science, Chemistry

Skills:

Latex Paint Formulation
Experienced In Alkyd Paint and Stain Formulation
Expert In Pigment Dispersion Both Water and Solvent
Polymers
Product Development
Chemistry
Resin
Coatings
Paint
Polymer Chemistry
R&D
Formulation
Design of Experiments

Us Patents

Universal Paint Tinting Concentrates
view source
US Patent:

6488760, Dec 3, 2002
Filed:

Aug 31, 2000
Appl. No.:

09/653296
Inventors:

Mark Binns - Louisville KY
Dana L. Phillips - Raymond MS
Don Diehl - Louisville KY
Stephen Korenkiewicz - Louisville KY
Larry Brandenburger - Lino Lakes MN
Assignee:

The Valspar Corporation - Minneapolis MN
International Classification:

C09C 104
US Classification:

106499, 106401, 106410, 106447, 106460, 106476, 106493, 106494, 106495, 106496, 106497, 106498, 106504, 106505
Abstract:

A universal tinting concentrate for both solvent- and water-based paints and coatings. The universal tinting concentrate is a composition which includes a colorant component, such as pigment, colorant, tinting agent and/or metal effect agent; a pigment dispersant including a moiety selected from the group consisting of an organic acid, anhydride, salt thereof, and derivative thereof, wherein the dispersant facilitates the dispersal of the colorant component in organic-based and aqueous-based vehicles; and a pH-neutralizing agent. In one embodiment of the invention, the pigment dispersant is represented by the following structure: where r and s are integers and r+s is 6 to 16; x and y are integers and x+y is 0 to 19; Z is H or COOH; and Zâ is H or COOH.

Low Voc Universal Paint Colorant Compositions
view source
US Patent:

7659340, Feb 9, 2010
Filed:

Mar 17, 2006
Appl. No.:

11/384176
Inventors:

Mark Randall Coward - Jeffersonville IN, US
Stephen M. Korenkiewicz - Prospect KY, US
David R. Wallace - Louisville KY, US
Assignee:

Valspar Sourcing, Inc. - Minneapolis MN
International Classification:

C09C 1/04
C09C 1/22
C09C 1/36
C09C 1/44
C09C 1/48
US Classification:

524599, 106447, 106499, 106504, 106477, 106460, 106476, 106493, 106494, 106495, 106496
Abstract:

A universal colorant composition for both solvent- and water-based paints and coatings includes a colorant component, such as pigment, dye, colorant, tinting agent and/or metal effect agent; a surfactant package including at least one alkyd-compatible; surfactant and at least one latex-compatible surfactant; and a carrier. When the surfactant package is added to a base paint it provides a mixture having a drop in viscosity of less than about 50%.

Expanded Color Space Architectural Paint And Stain Tinting System
view source
US Patent:

8141599, Mar 27, 2012
Filed:

Jun 17, 2008
Appl. No.:

12/141006
Inventors:

Stephen M. Korenkiewicz - Prospect KY, US
Mark R. Coward - Jeffersonville IN, US
David Y. Lee - Glenview IL, US
Assignee:

Valspar Sourcing, Inc. - Minneapolis MN
International Classification:

B65B 1/04
US Classification:

141104, 141 11, 141 18, 106401, 106495
Abstract:

White-pigmented and unpigmented base paints and stains are custom-tinted using an automated colorant dispenser having a minimum fluid dispensing quantity less than 0. 01 fluid ounce (

Low Voc Universal Paint Colorant System
view source
US Patent:

8242206, Aug 14, 2012
Filed:

Jan 9, 2010
Appl. No.:

12/684897
Inventors:

Mark Randall Coward - Jeffersonville IN, US
Stephen M. Korenkiewicz - Prospect KY, US
David R. Wallace - Louisville KY, US
Assignee:

Valspar Sourcing, Inc. - Minneapolis MN
International Classification:

C09C 1/04
C09C 1/22
C09C 1/36
C09C 1/44
C09C 1/48
US Classification:

524599, 106447, 106499, 106504, 106477, 106460, 106476, 106493, 106494, 106495, 106496
Abstract:

A universal colorant system for both solvent- and water-based paints and coatings is contained in a closed sealed pouch or cartridge-style container, and includes a colorant component, a surfactant package including at least one alkyd-compatible surfactant and at least one latex-compatible surfactant, and a carrier. When the colorant system is added to a base paint it desirably provides a mixture having a drop in viscosity of less than about 50%.

Architectural Paint And Stain Tinting System With Tip Drying Resistance
view source
US Patent:

20120316273, Dec 13, 2012
Filed:

Jan 11, 2010
Appl. No.:

13/519853
Inventors:

Stephen M. Korenkiewicz - Prospect KY, US
Assignee:

VALSPAR SOURCING, INC. - Minneapolis MN
International Classification:

C09D 5/00
C08K 3/30
C08K 3/26
C08K 5/521
C08K 3/34
C08K 5/06
C08K 5/13
C08K 5/103
C08K 3/22
C08K 3/36
US Classification:

524145, 524377, 524340, 524317
Abstract:

Custom-tinted paints and stains are made using an array of low VOC concentrated liquid colorants including at least at least white colorant; black colorant; and green-hued, blue-hued and red-hued primary colorants at least one of which primary colorants comprises polyalkylene glycol humectant, ethoxylated surfactant and extender pigment. For colorants in the array containing polyalkylene glycol humectant, the humectant and ethoxylated surfactant amounts are sufficiently high and extender pigment amount is sufficiently low so that the colorants will not problematically plug colorant dispenser orifices if left in the dispenser without an orifice cap for a full day. The polyalkylene glycol humectant is also present in an amount sufficiently low so that dried paint films made by mixing the colorants with a clear waterborne base paint will resist blocking.

Universal Paint Tinting Concentrates
view source
US Patent:

62873776, Sep 11, 2001
Filed:

Oct 13, 1999
Appl. No.:

9/416927
Inventors:

Mark Binns - Louisville KY
Dana L. Phillips - Raymond MS
Don Diehl - Louisville KY
Stephen Korenkiewicz - Louisville KY
Larry Brandenburger - Minneapolis MN
Assignee:

The Valspar Corporation - Minneapolis MN
International Classification:

C09C 104
C09C 122
C09C 136
C09C 144
C09C 148
US Classification:

106499
Abstract:

A universal tinting concentrate for both solvent- and water-based paints and coatings. The universal tinting concentrate is a composition which includes a colorant component, such as pigment, colorant, tinting agent and/or metal effect agent; a pigment dispersant including an organic acid containing no more an 70 carbon atoms; and a pH-neutralizing agent. In one embodiment of the invention, the pigment dispersant is represented by the following structure: ##STR1## where r and s are integers and r+s is 6 to 16; and x and y are integers and x+y is 0 to 19; and Z is H or COOH and Z' is H or COOH.

Pigment Dispersion
view source
US Patent:

20210062006, Mar 4, 2021
Filed:

Nov 13, 2020
Appl. No.:

17/097716
Inventors:

- Cleveland OH, US
T. Howard Killilea - North Oaks MN, US
Stephen M. Korenkiewicz - Lake Zurich IL, US
Thomas J. Melnyk - Greenfield MN, US
Danny G. Hartinger - Hudson WI, US
Jason S. Ness - Woodbury MN, US
Jacob Donlon - Prospect KY, US
Mark R. Coward - Jeffersonville IN, US
International Classification:

C09B 67/46
C09D 7/61
C09D 7/20
C09D 7/63
Abstract:

Fluid concentrates, colorants and coating compositions contain solid pigment particles dispersed in a nonvolatilizing, reactive liquid diluent having a viscosity less than 1,000 cps and containing at least one molecular species having at least three reactive unsaturated sites. The reactive liquid diluent may serve as one or more of a dispersing medium for the solid pigment particles, a carrier, a coalescent and a humectant, and may crosslink or otherwise cure to form an interpenetrating polymer network in, or crosslink with, a pigmented coating composition containing a film-forming polymeric binder. Embodiments of the reactive liquid diluent can provide colorants and coating compositions having reduced levels of VOCs, conventional carriers, conventional dispersants, conventional coalescents and conventional humectants.

Aqueous Stain Resistant Coating Composition
view source
US Patent:

20180163074, Jun 14, 2018
Filed:

Apr 25, 2016
Appl. No.:

15/794187
Inventors:

- Minneapolis MN, US
Gang DUAN - Chicago IL, US
Rong XIONG - Foshan City, CN
Stephen M. KORENKIEWICZ - Lake Zurich IL, US
Hui KOU - Foshan City, CN
Assignee:

Valspar Sourcing, Inc. - Minneapolis MN
International Classification:

C09D 133/08
C08F 220/34
C08K 3/22
C08K 3/26
C08K 3/34
C08K 3/36
C08K 7/16
Abstract:

The present disclosure refers to an aqueous stain resistant coating composition, comprising, one or more aqueous dispersions of self-crosslinkable polymeric particles; and one or more particulate solids, wherein the polymeric particles have a Tg of 10 C. or less; and wherein the particulate solids comprise a combination of sheet-like particulate solids and sphere-like particulate solids in a weight ratio of 1:1 or more; and wherein the coating composition has a pigment volume concentration of 45% or more; and the coating composition is substantially free of volatile organic compounds.