Kevin D Sikkema from 8408 W 113Th St, Overland Park, KS 66210, age 68

Novel High Purity And High Molecular Weight Mpeg Alcohol Compositions
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US Patent:

20060045866, Mar 2, 2006
Filed:

Sep 1, 2004
Appl. No.:

10/932629
Inventors:

Chris Chappelow - Midland MI, US
Edward Daugs - Midland MI, US
Sterling Gatling - Midland MI, US
Kevin Sikkema - Midland MI, US
Maciej Turowski - Midland MI, US
Ross Wallingford - Scott Depot WV, US
International Classification:

A61K 31/765
C08G 65/32
US Classification:

424078380, 525409000
Abstract:

The invention is directed toward novel high molecular weight and high purity mPEG alcohol compositions as well as a process for obtaining said compositions by removing PEG diols from the mPEG alcohol after polymerization is complete.

Injection Stretch Blow Molding Process Using Polylactide Resins
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US Patent:

20070187876, Aug 16, 2007
Filed:

Jun 23, 2005
Appl. No.:

11/629733
Inventors:

Kevin Cink - Brooklyn Park MN, US
Richard Bopp - Golden Valley MN, US
Kevin Sikkema - Midland MI, US
Assignee:

NATUREWORKS LLC - Minnetonka MN
International Classification:

B29C 49/06
B29C 49/10
B29C 49/64
B29C 49/22
US Classification:

264510000, 264532000, 264535000, 264537000
Abstract:

Containers are manufactured in an injection stretch molding process using a PLA resin having a specified ratio of lactic acid stereoisomers and stretch ratios. The process permits good quality containers to be made at good operating rates.

Analysis Of High Molecular Weight Mpeg Alcohol Compositions
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US Patent:

20100041160, Feb 18, 2010
Filed:

Oct 22, 2009
Appl. No.:

12/603708
Inventors:

Chris Chappelow - Midland MI, US
Edward D. Daugs - Midland MI, US
Sterling C. Gatling - Midland MI, US
Kevin D. Sikkema - Midland MI, US
Maciej Turowski - Midland MI, US
Ross A. Wallingford - Scott Depot WV, US
International Classification:

G01N 33/44
US Classification:

436 85
Abstract:

The invention is directed toward novel high molecular weight and high purity mPEG alcohol compositions as well as a process for obtaining said compositions by removing PEG diols from the mPEG alcohol after polymerization is complete.

Polymers Containing Highly Grafted Rubbers
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US Patent:

59590335, Sep 28, 1999
Filed:

Dec 18, 1997
Appl. No.:

8/993553
Inventors:

Mehmet Demirors - Midland MI
Duane B. Priddy - Midland MI
Nicolaas M. A. Hermans - Terneuzen, NL
Rudi H. E. Veraart - Terneuzen, NL
Albert J. Heuvelsland - Heikant, NL
Kevin D. Sikkema - Midland MI
Assignee:

The Dow Chemical Company - Midland MI
International Classification:

C08L 5104
US Classification:

525 86
Abstract:

The present invention is directed to rubber modified polymers which contain a non-block grafted rubber having a degree of grafting of at least 30 percent at the point of phase inversion and a specified amount of grafted vinyl aromatic polymer.

Preparation Of Ketone Containing Photodegradable Polymers
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US Patent:

51945274, Mar 16, 1993
Filed:

Oct 31, 1989
Appl. No.:

7/429575
Inventors:

James J. O'Brien - Midland MI
Kevin D. Sikkema - Midland MI
Duane B. Priddy - Midland MI
Assignee:

The Dow Chemical Company - Midland MI
International Classification:

C08F 200
C08F21636
US Classification:

526 75
Abstract:

A process for preparing polymers comprising pendant ketone functional moieties, the steps of the process comprising exposing a mixture comprising an ethylenically unsaturated addition polymerizable monomer and a. beta. -substituted ketone compound corresponding to the formula: XCH. sub. 2 --CHR'--C(O)R where X is a suitable leaving group, R' is hydrogen or R; and R is alkyl or aryl of up to 12 carbons to vinyl ketone monomer formation conditions to prepare the corresponding vinyl ketone monomer from the. beta. -substituted ketone compound and subsequently exposing the mixture to addition polymerization conditions to prepare the resulting polymer.

Bio- And Photo-Degradable Resin Composition
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US Patent:

51150581, May 19, 1992
Filed:

Sep 6, 1991
Appl. No.:

7/755914
Inventors:

Kevin D. Sikkema - Midland MI
Duane B. Priddy - Midland MI
Assignee:

The Dow Chemical Company - Midland MI
International Classification:

C08F22606
C08F22400
US Classification:

526258
Abstract:

Photodegradable and biodegradable polymers comprising both ketone functionality and hydrolyzable polymer ester or amide functionality and thermoplastic articles formed therefrom are disclosed.

Surfactants Having Non-Conventional Hydrophobes
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US Patent:

20210039060, Feb 11, 2021
Filed:

Apr 4, 2018
Appl. No.:

16/500250
Inventors:

- KANSAS CITY KS, US
- AUSTIN TX, US
KEVIN SIKKEMA - OVERLAND PARK KS, US
JOHN BOOREM - KANSAS CITY KS, US
AARON BOOREM - LEAVENWORTH KS, US
KURT CHESHIRE - SHAWNEE KS, US
KISHORE K. MOHANTY - AUSTIN TX, US
KRISHNA PANTHI - CEDAR PARK TX, US
HIMANSHU SHARMA - AUSTIN TX, US
PINAKI GHOSH - AUSTIN TX, US
International Classification:

B01F 17/00
C11D 1/722
C07C 305/10
C11D 1/29
C07C 217/28
E21B 43/16
C11D 11/00
C07C 59/125
C11D 1/06
C09K 8/584
Abstract:

The present invention is directed to surfactants with small hydrophobes, which are of non-conventional hydrophobe size. The surfactants of the present invention utilize a small hydrophobic moiety with a polvalkoxylate chain comprising PO, BO and/or EO groups, with optional ionic groups, such as anionic, cationic and zwitterionic, to achieve the desired hydrophilic-lipophilic balance (HLB). The present invention is further directed to formulations comprising the surfactants of the invention, and methods of using the surfactants of the invention, including in enhanced oil recovery applications.