Gregory Thomas Clark

US Patent:

8002886, Aug 23, 2011

Filed:

Nov 21, 2007

Appl. No.:

12/444863

Inventors:

Gregory D. Clark - Silver Spring MD, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

D06M 15/643

US Classification:

10628711, 556414

Abstract:

Fluorochemical urethane compounds and coating compositions derived therefrom are described. The compounds and composition may be used in treating substrates, in particular substrates having a hard surface such as ceramics or glass, to render them water, oil, stain, and/or dirt repellent. The compounds have the formula (R)R—(R)]wherein Ris a fluorine-containing group, Ris the residue of a polyisocyanate. Ris of the formula —NH—CO—X—R(CHCH—S—R—Si(Y)(R))wherein Xis —O— or —NR—, where Ris H or C-Calkyl, Ris a polyvalent alkylene or arylene group, or combinations thereof, said alkylene groups optionally containing one or more catenary oxygen atoms, Ris a divalent alkylene group, said alkylene group optionally containing one or more catenary oxygen atoms, Y is a hydrolysable group, Ris a monovalent alkyl or aryl group, p is 1, 2 or 3, q is 1 to 5, x and y are each independently at least 1, and z is 1 or 2.

US Patent:

20110056689, Mar 10, 2011

Filed:

Apr 27, 2009

Appl. No.:

12/990991

Inventors:

Gregory D. Clark - Silver Spring MD, US
George G.I. Moore - Afton MN, US
Michael S. Terrazas - Prescott WI, US

International Classification:

E21B 43/267
E21B 43/16

US Classification:

1662802, 1663051

Abstract:

Method of treating a hydrocarbon-bearing formation having brine and treated hydrocarbon-bearing formations. The method includes contacting a hydrocarbon-bearing formation with a composition comprising solvent and a polymer. The polymer comprises divalent units represented by formula: (formula I); and a plurality of alkyleneoxy groups. In some embodiments, the solvent at least one of solubilizes or displaces the brine in the formation. In some embodiments, the solvent includes at least one of a polyol or polyol ether independently having from 2 to 25 carbon atoms and at least one of water, a monohydroxy alcohol, an ether, or a ketone, wherein the monohydroxy alcohol, the ether, and the ketone each independently have up to 4 carbon atoms. Hydrocarbon-bearing formations and proppants treated with the polymer are also disclosed.

US Patent:

20150147579, May 28, 2015

Filed:

Jan 30, 2015

Appl. No.:

14/610727

Inventors:

- St. Paul MN, US
Gregory D. Clark - Silver Spring MD, US
Jason T. Petrin - Woodbury MN, US
Rudolf J. Dams - Antwerp, BE
Steven J. Martin - Shoreview MN, US
Mark J. Pellerite - Woodbury MN, US

International Classification:

C08F 14/18
C09D 127/12

US Classification:

428446, 526247, 524379, 524366, 524544, 428457, 428702, 428703

Abstract:

A composition comprising at least one first divalent unit represented by formula:and