Donald W Pickens

US Patent:

50047906, Apr 2, 1991

Filed:

Feb 15, 1989

Appl. No.:

7/311316

Inventors:

Daniel F. Harnish - Morristown NJ
Donald Pickens - Mendham NJ
Andrew M. Zweig - West Orange NJ

Assignee:

Allied-Signal Inc. - Morris Township, Morris County NJ

International Classification:

C08F 1220

US Classification:

526242

Abstract:

A novel class of fluorinated surfactant monomers which when blended and cured with conventional non-fluorinated monomers produces resins with dramatically modified surfaces. Resins which may be thus modified include urethanes, epoxides, acrylates, polyesters and other thermosetting materials.

US Patent:

44077831, Oct 4, 1983

Filed:

Aug 16, 1982

Appl. No.:

6/408408

Inventors:

Harry E. Ulmer - Morristown NJ
Donald Pickens - Mendham NJ
Forrest J. Rahl - Hackettstown NJ
Philip A. Lefrancois - Cranford NJ

Assignee:

Allied Corporation - Morris Township, Morris County NJ

International Classification:

C01B 3304

US Classification:

423347

Abstract:

Silicon tetrafluoride is reacted with sodium hydride in a cyclic ether reaction medium such as tetrahydrofuran or 1,4-dioxane or in dimethoxyethane. Sodium aluminum hydride is dissolved in the solvent and catalyzes the reaction in amounts of 4-25%, by weight of combined sodium hydride and sodium aluminum hydride.

US Patent:

50615777, Oct 29, 1991

Filed:

Nov 28, 1988

Appl. No.:

7/277089

Inventors:

Daniel F. Harnish - Morristown NJ
Donald Pickens - Mendham NJ
Richard J. Brautigam - Westfield NJ

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

G11B 2300

US Classification:

428694

Abstract:

A class of fluorinated polyols which when added to formulated dispersions used to make a magnetic particle based coating not only improves the dispersion of the particles in the formulation during manufacture but also improves the wear characteristics of the cured coating during use. The fluorinated polyol may be prepared either by the reaction of a diglycidyl ether with a diol or by the reaction of two diols with epichlorohydrin.

US Patent:

43237061, Apr 6, 1982

Filed:

Dec 18, 1980

Appl. No.:

6/217938

Inventors:

John H. Bonfield - Basking Ridge NJ
Stephen E. Belsky - Parsippany NJ
Donald Pickens - Mendham NJ

Assignee:

Allied Corporation - Morris Township, Morris County NJ

International Classification:

C07C13100

US Classification:

564253

Abstract:

Acetaldehyde oxime, a commercially useful intermediate in the production of pesticides, is prepared by oximating acetaldehyde with an aqueous hydroxylamine-containing solution to form an aqueous oximation reaction mixture and recovering acetaldehyde oxime from the aqueous oximation reaction mixture by distilling a mixture of acetaldehyde oxime and water directly from the aqueous oximation reaction mixture.

US Patent:

42566681, Mar 17, 1981

Filed:

Jun 20, 1979

Appl. No.:

6/050356

Inventors:

Chempolil T. Mathew - Randolph NJ
Donald Pickens - Mendham NJ

Assignee:

Allied Chemical Corporation - Morris Township, Morris County NJ

International Classification:

C07C13100
C07C13104

US Classification:

564255

Abstract:

An organic, substantially water-insoluble oxime product is recovered from the liquid reaction mixture of water, ammonium sulfate and the oxime product. First the reaction mixture is separated into a first liquid layer containing an aqueous ammonium sulfate solution and a second liquid layer containing an emulsion of the oxime product as the continuous phase and aqueous ammonium sulfate as the discontinuous phase. These layers are separated and the second liquid layer is contacted with solid ammonium sulfate for a time sufficient to agglomerate the discontinuous phase. The agglomerated discontinuous phase is then removed from the continuous phase. Thereafter, either a lites fraction can be distilled from the continuous phase or the oxime product can be distilled from the continuous phase, or both. The process is particularly applicable to the production of oximes such as Aldicarb oxime, cyclohexanone oxime and methylethylketoxime from aqueous reaction mixtures in which by-product ammonium sulfate is formed.

US Patent:

40961877, Jun 20, 1978

Filed:

Aug 4, 1977

Appl. No.:

5/821898

Inventors:

John Henry Bonfield - Basking Ridge NJ
Andiappan Kumaresa Murthy - Lake Hiawatha NJ
Donald Pickens - Mendham NJ

Assignee:

Allied Chemical Corporation - Morris Township NJ

International Classification:

C07C 4714
C07C13100

US Classification:

260601H

Abstract:

In the halogenation under reflux conditions of an aldehyde of the formula ##STR1## with Cl. sub. 2, Br. sub. 2 or I. sub. 2, the aldehyde and halogen are continuously fed into a reactor at a molar ratio of halogen to aldehyde between about 0. 8:1 and about 1. 1:1 and water is continuously fed into the reactor at a rate of between about 1 and about 20% by weight of aldehyde. The product. alpha. -haloaldehyde is thioalkylated and then oximated to form a 2-hydrocarbylthioaldoxime of the formula ##STR2## with improved yield and quality because of the improved yield and quality of. alpha. -haloaldehyde. An exemplary process includes the chlorination of isobutyraldehyde (IBA) to form. alpha. -chloroisobutyraldehyde (CIBA), the thiomethylation of CIBA to form 2-methyl-2 methylthio-propionaldehyde (MTIBA) and the oximation of MTIBA to form 2-methylthio-propionaldehyde oxime (aldicarb oxime or ADO).

US Patent:

41338340, Jan 9, 1979

Filed:

Jan 3, 1978

Appl. No.:

5/866421

Inventors:

Donald Pickens - Mendham NJ

Assignee:

Allied Chemical Corporation - Morris Township, Morris County NJ

International Classification:

C07C13100

US Classification:

260566A

Abstract:

An improved process is disclosed for preparing. alpha. -and. beta. -hydroxy oximes wherein said oximes are prepared in the presence of a water soluble compound capable of contributing ferric or ferrous ions to the reaction medium. Such oximes are useful as metal complexing agents. Such complexing agents are used in processes of extracting metals from an ore solution.

US Patent:

41559339, May 22, 1979

Filed:

Apr 10, 1978

Appl. No.:

5/894870

Inventors:

John H. Bonfield - Basking Ridge NJ
Andiappan K. Murthy - Lake Hiawatha NJ
Donald Pickens - Mendham NJ

Assignee:

Allied Chemical Corporation - Morris Township, Morris County NJ

International Classification:

C07C13100

US Classification:

260566A

Abstract:

In the halogenation under reflux conditions of an unhalogenated aldehyde of the formula ##STR1## with Cl. sub. 2, Br. sub. 2 or I. sub. 2, the aldehyde and halogen are continuously fed into a reactor at a molar ratio of halogen to unhalogenated aldehyde between about 0. 8:1 and about 1. 1:1 and water is continuously fed into the unhalogenated reactor at a rate of between about 1% and about 20% by weight of aldehyde. The product. alpha. -haloaldehyde is thiohydrocarbylated and then oximated to form a 2-hydrocarbylthioaldoxime of the formula ##STR2## with improved yield and quality because of the improved yield and quality of unhalogenated. alpha. -haloaldehyde. An exemplary process includes the chlorination of isobutyraldehyde (IBA) to form. alpha. -chloroisobutyraldehyde (CIBA), the thiomethylation of CIBA to form 2-methyl-2 methylthio-propionaldehyde (MTIBA) and the oximation of MTIBA to form 2-methylthio-propionaldehyde oxime (aldicarb oxime or ADO).