John M Motes

US Patent:

48144436, Mar 21, 1989

Filed:

Aug 13, 1987

Appl. No.:

7/085428

Inventors:

Duane S. Treybig - Lake Jackson TX
John M. Motes - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C07D24308

US Classification:

540492

Abstract:

A process for the preparation of 4-(2-hydroxyalkyl)-2-piperazinones and their substituted derivatives comprising reacting an N-hydroxyalkylalkylenediamine, e. g. 2-[(2-aminoethyl)amino]ethanol, or a hydrocarbyl substituted derivative thereof with an. alpha. ,. beta. -dicarbonyl compound, e. g. glyoxal, an alkyl-substituted derivative of glyoxal or a glyoxal equivalent. Certain hexahydro-4-(hydroxyalkyl)-2H-1,4-diazepin-2-ones have been made which are new compounds.

US Patent:

41705912, Oct 9, 1979

Filed:

May 9, 1973

Appl. No.:

5/358564

Inventors:

John M. Motes - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C07D20312
A01N 922

US Classification:

260239E

Abstract:

Metal salt complexes of aziridine and 2-alkylaziridines in solution isomerize at temperatures between 20. degree. -70. degree. C. to form aziridine dimer chelates. The chelates are biologically active compounds and are chemical intermediates in the preparation of free aziridine dimers.

US Patent:

48809349, Nov 14, 1989

Filed:

Dec 5, 1988

Appl. No.:

7/279906

Inventors:

Duane S. Treybig - Lake Jackson TX
John M. Motes - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C07D24108

US Classification:

544384

Abstract:

A process for the preparation of 4-(2-hydroxyalkyl)-2-piperazinones and their substituted derivatives comprising reacting an N-hydroxyalkylalkylenediamine, e. g. 2-[(2-aminoethyl)amino]ethanol, or a hydrocarbyl substituted derivative thereof with an. alpha. ,. beta. -dicarbonyl compound, e. g. glyoxal, an alkyl-substituted derivative of glyoxal or a glyoxal equivalent. Certain hexahydro-4-(hydroxyalkyl)-2H-1,4-diazepin-2-ones have been made which are new compounds.

US Patent:

40641570, Dec 20, 1977

Filed:

Mar 29, 1976

Appl. No.:

5/671201

Inventors:

John L. Nafziger - Lake Jackson TX
John M. Motes - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C07C119042

US Classification:

260453SP

Abstract:

Polyisocyanates are stabilized against discoloration by the addition of certain hindered phenols such as o,o-di-n-octadecyl-3,5-di-tert-butyl-4-hydroxyl benzyl phosphonate.

US Patent:

47833270, Nov 8, 1988

Filed:

Aug 13, 1987

Appl. No.:

7/085432

Inventors:

Duane S. Treybig - Lake Jackson TX
James L. Potter - Lake Jackson TX
Mark B. Jones - Lake Jackson TX
John M. Motes - Lake Jackson TX

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C01B 1700
B01D 1900

US Classification:

423243

Abstract:

A method of removing SO. sub. 2 from a gas stream containing the same by absorbing the SO. sub. 2 in an aqueous solution containing a 4-(2-hydroxyalkyl)-2-piperazinone compound or an alkyl or aryl substituted derivative thereof. These compounds provide an absorbent solution which is less subject to loss during the regeneration step and yet effectively remove the SO. sub. 2 from the gas stream without interference from other associated gases.