James William Ringer

US Patent:

6921834, Jul 26, 2005

Filed:

Nov 21, 2002

Appl. No.:

10/301407

Inventors:

Daniel A. Hickman - Midland MI, US
James W. Ringer - Midland MI, US

Assignee:

Dow Agrosciences LLC - Indianapolis IN

International Classification:

C07F009/28

US Classification:

562 17

Abstract:

In general the present invention relates to a continuous process for manufacturing (N-phosphonomethyl) glycine, glyphosate, by the catalyzed oxidation of N-phosphonomethyliminodiacetic acid. Glyphosate can be provided in high yield and in a cost efficient process by minimizing the competing side reactions and by-products. The process includes conducting the oxidation reaction and selecting an appropriate catalyst to maximize the rate of the oxidation of N-phosphonomethyliminodiacetic acid while at the same time minimizing the rate of oxidation of glyphosate in the same reaction.

US Patent:

7683207, Mar 23, 2010

Filed:

May 20, 2005

Appl. No.:

11/133739

Inventors:

Jimmy Jui Tai - Midland MI, US
Herbert Nathan Praay - Midland MI, US
James William Ringer - Midland MI, US
Mark Victor Michael Emonds - Midland MI, US

Assignee:

Dow AgroSciences LLC - Indianapolis IN

International Classification:

C07F 9/22

US Classification:

562 11, 562 17

Abstract:

The present invention is a process for the purification of glyphosate (PMG) comprising:.

US Patent:

8318834, Nov 27, 2012

Filed:

May 4, 2009

Appl. No.:

12/988874

Inventors:

James W. Ringer - Midland MI, US
John N. Argyropoulos - Midland MI, US

Assignee:

Dow Global Technologies LLC - Midland MI

International Classification:

C08G 59/60

US Classification:

523400, 523220, 523123, 264261

Abstract:

An epoxy resin reactive diluent composition comprises an epoxy resin diluent (A) and a resin compound (B), wherein the epoxy resin diluent (A) comprises a cis, trans-1,3- and -1,4-cyclohexanedimethylether moiety; and wherein the resin compound (B) comprises one or more epoxy resins other than the epoxy resin diluent (A). A curable epoxy resin composition comprises the epoxy resin reactive diluent composition and a curing agent and/or curing catalyst therefore. A cured epoxy resin is prepared by curing the curable epoxy resin composition.

US Patent:

20010008948, Jul 19, 2001

Filed:

Feb 5, 2001

Appl. No.:

09/781588

Inventors:

James Ringer - Midland MI, US
David Molzahn - Midland MI, US
Dennis Hucul - Midland MI, US

International Classification:

C07C051/16

US Classification:

562/538000, 562/523000

Abstract:

Aliphatic primary alcohols, including aliphatic primary alcohols possessing one or more oxygen, nitrogen and/or phosphorus heteroatoms that may be atoms substituting for carbon atoms in the alkyl group or component atoms of substituents on the alkyl group, were converted into salts of carboxylic acids by contacting an alkaline aqueous solution of the primary alcohol with a catalyst comprising cobalt, copper, and at least one of cerium, iron, zinc, and zirconium. Diethanolamine, for example, was converted to sodium iminodiacetate by treatment in an aqueous medium containing sodium hydroxide with a catalyst that was obtained by reducing a mixture of cobalt, copper, and zirconium oxides with hydrogen.

US Patent:

20110039982, Feb 17, 2011

Filed:

May 4, 2009

Appl. No.:

12/989656

Inventors:

James W. Ringer - Midland MI, US
John N. Argyropoulos - Midland MI, US

International Classification:

C08L 63/00
C08G 59/02

US Classification:

523400, 528418, 528408, 525523

Abstract:

Epoxy resins comprising a cis, trans-1,3- and -1,4-cyclohexanedimethylether moiety and processes for preparing the epoxy resins. The process of preparation of the epoxy resins comprises reacting (a) a mixture of a cis-1,3-cyclohexanedimethanol, a trans-1,3-cyclohexanedimethanol, a cis-1,4-cyclohexanedimethanol, and a trans-1,4-cyclohexanedimethanol, (b) an epihalohydrin, (c) a basic acting substance, (d) optionally, a solvent, (e) optionally, a catalyst, and/or (f) optionally, a dehydrating agent. The process may be a slurry epoxidation process, an anhydrous epoxidation process, or a Lewis acid catalyzed coupling and epoxidation process.

US Patent:

20110040046, Feb 17, 2011

Filed:

May 4, 2009

Appl. No.:

12/989495

Inventors:

James W. Ringer - Midland MI, US

International Classification:

C08G 59/24

US Classification:

525533, 525523

Abstract:

An adduct comprises at least one reaction product of (i) an epoxy resin material (A) and (ii) a reactive compound (B). The epoxy resin material (A) comprises a cis, trans-1,3- and -1,4-cyclohexanedimethylether moiety and the reactive compound (B) comprises a compound having two or more reactive hydrogen atoms per molecule, wherein the reactive hydrogen atoms are reactive with epoxide groups. A curable epoxy resin composition comprises the adduct described above. A cured epoxy resin is prepared by a process of curing the curable epoxy resin composition.

US Patent:

20110054056, Mar 3, 2011

Filed:

May 4, 2009

Appl. No.:

12/989480

Inventors:

James W. Ringer - Midland MI, US

International Classification:

C08G 18/00
C08G 18/32
C08L 75/04

US Classification:

521155, 528 79, 528 68, 524590

Abstract:

Thermoset polyurethanes comprising a cis, trans-1,3- and -1,4-cyclohexanedimethylether moiety. Adducts of epoxy resins comprising a cis, trans-1,3- and -1,4-cyclohexanedimethylether moiety are used to react with a polyisocyanate to produce the thermoset polyurethanes.

US Patent:

60667346, May 23, 2000

Filed:

Dec 18, 1998

Appl. No.:

9/216269

Inventors:

Ronald B. Leng - Midland MI
Julie L. Maurer - Midland MI
James W. Ringer - Midland MI

Assignee:

Dow AgroSciences LLC - Indianapolis IN

International Classification:

C07D23930
C07D23932
C07D23952

US Classification:

544334

Abstract:

Chloropyrimidine compounds, such as 4,6-dichloro-2-ethoxypyrimidine, were prepared in good yield and good purity from the corresponding hydroxypyrimidine compounds in the absence of organic solvents and with a reduced amount of phosphorus oxychloride by carrying out the reaction in the presence of a trialkylamine compound and phosphorus trichloride. The additions of hydroxypyrimidine compound and trialkylamine compound could be made in segments. The chloropyrimidine compounds produced were recovered in an improved manner by adding chlorine to convert the chlorophosphoric acid by-products and phosphorus trichloride to phosphorus oxychloride, diluting the mixture with additional chloropyrimidine compound and removing the phosphorus oxychloride by distillation, combining the residue with water and a base, distilling the trialkylamine compound from the resulting mixture, and removing the aqueous phase.