Martin Hale Peery

US Patent:

20080308504, Dec 18, 2008

Filed:

Oct 15, 2007

Appl. No.:

11/872214

Inventors:

Matthew J. Hallan - Minneapolis MN, US
Jon E. Johnson - Plymouth MN, US
Martin H. Peery - Bloomington MN, US
Lance D. Johnson - Eden Prairie MN, US

International Classification:

B01D 35/30

US Classification:

210741, 210235

Abstract:

A loader for moving a filter element between loaded and unloaded positions with respect to a pressure vessel is provided. The loader includes a connection section associated with a loader section. The connection section is operative to be secured in coaxial alignment with the pressure vessel. The loader section is operative to receive a filter element and move the filter element between the loaded and unloaded positions. The loader section includes a cradle assembly for supporting a filter element and a carriage assembly operative to engage the filter element and move it between the loaded and unloaded positions.

US Patent:

20070272628, Nov 29, 2007

Filed:

Feb 25, 2005

Appl. No.:

10/590423

Inventors:

William Mickols - Chanhassen MN, US
Allyn Marsh - Lakeville MN, US
Martin Peery - Bloomington MN, US
Steven Jons - Eden Prairie MN, US
Markus Busch - Drusenheim, FR

International Classification:

B01D 63/12

US Classification:

210790000, 210255000, 210321650, 210336000, 210806000

Abstract:

The present invention pertains to an apparatus and method for treating a solution of high osmotic strength, especially seawater and solutions of greater than 20 bar osmotic pressure, by passing the solution through a vessel containing spiral wound reverse osmosis or nanofiltration elements. The vessel contains at least three elements in series and at least two of these elements have standard specific fluxed that differ by at least 50%. The invention allows a more even flux distribution within a filtration system to be obtained, and it may advantageously be combined with variations en element construction and feed spacers.

US Patent:

20160303519, Oct 20, 2016

Filed:

Dec 15, 2014

Appl. No.:

15/033925

Inventors:

- Midland MI, US
Mou Paul - Edina MN, US
Martin H. Peery - Bloomington MN, US
Abhishek Roy - Edina MN, US

International Classification:

B01D 71/56
B01D 69/12
B01D 69/02
C02F 1/44
B01D 61/02
B01D 67/00

Abstract:

A method for treating an aqueous mixture containing an anionic surfactant including the step of passing the mixture through a spiral wound element to produce a permeate stream and concentrate stream wherein the concentrate stream has a relatively higher concentration of the anionic surfactant than the permeate stream, wherein the spiral wound element includes a composite polyamide membrane comprising a porous support and a thin film polyamide layer, and wherein the membrane is characterized by having: i) a NaCl rejection and an anionic rejection of at least 99% when tested with an aqueous solution containing 2000 ppm NaCl and 2 ppm an anionic surfactant at 25 C., pH 8 and ImPa (150 psi); and ii) a dissociated carboxylate content of at least 0.3 moles/kg of polyamide at pH 9.5 as measured by Rutherford Backscattering (RBS).

US Patent:

20150157990, Jun 11, 2015

Filed:

Jul 3, 2013

Appl. No.:

14/407362

Inventors:

- Midland MI, US
Tina L. Arrowood - Elko New Market MN, US
Anand S. Badami - Midland MI, US
Robert C. Cieslinski - Midland MI, US
Bruce B. Gerhart - Midland MI, US
David D. Hawn - Midland MI, US
Steven D. Jons - Eden Prairie MN, US
Mou Paul - Edina MN, US
Martin H. Peery - Bloomington MN, US
XiaoHua sam Qiu - Midland MI, US
Mark A. Rickard - Midland MI, US
Steven Rosenberg - Shorewood MN, US
Ian A. Tomlinson - Midland MI, US
Cheng Li Zu - Midland MI, US

International Classification:

B01D 71/56
B01D 69/12

Abstract:

A thin film composite polyamide membrane including a porous support and a thin film polyamide layer which is a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), wherein the membrane is characterized by the thin film polyamide layer having a dissociated carboxylic acid content of at least 0.18 moles/kg at pH 9.5, and wherein pyrolysis of the thin film polyamide layer at 650 C results in a ratio of responses from a flame ionization detector for fragments produced at 212 m/z and 237 m/z of less than 2.8.

US Patent:

20150151255, Jun 4, 2015

Filed:

Jul 3, 2013

Appl. No.:

14/405711

Inventors:

- Midland MI, US
Tina L. Arrowood - Elko New Market MN, US
Robert C. Cieslinski - Midland MI, US
Derek M. Stevens - Chanhassen MN, US
David D. Hawn - Midland MI, US
Steven D. Jons - Eden Prairie MN, US
Mou Paul - Edina MN, US
Martin H. Peery - Bloomington MN, US
Steven Rosenberg - Shorewood MN, US
Ian A. Tomlinson - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

B01D 69/12

Abstract:

A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method includes the step of applying a polyfunctional amine monomer and polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the step of applying the polyfunctional acyl halide monomer to the porous support includes the step of combining the polyfunctional acyl halide monomer with a non-polar solvent at a concentration of at least 0.18 weight percent to form a coating solution which is applied to the surface of the porous support, and wherein the interfacial polymerization is conducted in the presence of a tri-hydrocarbyl phosphate compound which is provided in a molar ratio of at least 0.5:1 with the polyfunctional acyl halide monomer. Many additional embodiments are described including membranes made from the subject method and applications for such membranes.

US Patent:

20150129485, May 14, 2015

Filed:

Jul 3, 2013

Appl. No.:

14/406994

Inventors:

- Midland MI, US
Tina L. Arrowood - Elko New Market MN, US
Robert C. Cieslinski - Midland MI, US
David D. Hawn - Midland MI, US
Steven D. Jons - Eden Prairie MN, US
Mou Paul - Edina MN, US
Martin H. Peery - Bloomington MN, US
XiaoHua Qiu - Midland MI, US
Steven Rosenberg - Shorewood MN, US
Ian A. Tomlinson - Midland MI, US
Chengli Zu - Midland MI, US

Assignee:

DOW GLOBAL TECHNOLOGIES LLC - Midland MI
THE DOW CHEMICAL COMPANY - Midland MI

International Classification:

B01D 71/56
B01D 69/10
B01D 67/00
B01D 69/12

US Classification:

210489, 427244

Abstract:

A thin film composite membrane including a porous support and a thin film polyamide layer characterized by having a dissociated carboxylate content of at least 0.45 moles/kg at pH 9.5 and a method for making a composite polyamide applying a polar solution comprising a polyfunctional amine monomer and a non-polar solution comprising a polyfunctional amine-reactive monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by the non-polar solution comprising at least 0.025 wt % of an acid compound including at least one carboxylic acid moiety and at least one amine-reactive moiety selected from acyl halide and anhydride.

US Patent:

20140264161, Sep 18, 2014

Filed:

Mar 16, 2013

Appl. No.:

13/844840

Inventors:

- Midland MI, US
Steven D. Jons - Eden Prairie MN, US
Joseph D. Koob - Jordan MN, US
Martin H. Peery - Bloomington MN, US
XiaoHua Sam Qiu - Midland MI, US
Steven Rosenberg - Shorewood MN, US
Ian A. Tomlinson - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C07B 41/08

US Classification:

25218215

Abstract:

An in-situ method for preparing a hydrolyzed, acyl halide-containing compound by combining a reactant including a plurality of acyl halide functional groups containing reactant, a tri-hydrocarbyl phosphate compound and water within a hydrocarbon or halogenated hydrocarbon solvent.

US Patent:

20140264162, Sep 18, 2014

Filed:

Mar 16, 2013

Appl. No.:

13/844841

Inventors:

- Midland MI, US
Steven D. Jons - Eden Prairie MN, US
Joseph D. Koob - Jordan MN, US
Martin H. Peery - Bloomington MN, US
Steven Rosenberg - Shorewood MN, US
Abhishek Roy - Edina MN, US
Ian A. Tomlinson - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08G 69/00

US Classification:

25218215

Abstract:

A method for increasing the solubility of a hydrocarbon compound comprising an aliphatic or arene moiety substituted with at least one acyl halide and at least one carboxylic acid functional group within a hydrocarbon solvent, wherein the method includes the step of preparing a solution comprising: at least 80 v/v % of the hydrocarbon solvent, the hydrocarbon compound, and a tri-hydrocarbyl phosphate compound, wherein the concentration of the hydrocarbon compound is greater than its solubility limit within the solvent but less than its solubility limit in the solution and the hydrocarbon.