Ronald J Mckinney

US Patent:

6844289, Jan 18, 2005

Filed:

Apr 8, 2003

Appl. No.:

10/409482

Inventors:

Scott Christopher Jackson - Wilmington DE, US
Ronald J. McKinney - Wilmington DE, US

Assignee:

Invista North America S.A.R.L. - Wilmington DE

International Classification:

B01J 3100

US Classification:

502162, 502169, 556 18, 556138

Abstract:

Process for preparing a nickel/ligand catalyst in which a crude ligand mixture is contacted with at least one member selected from the group consisting of (i) a weakly acidic organic resin, (ii) a weakly basic organic resin, (iii) a high-surface-area organic resin, (iv) activated carbon, (v) aluminosilicate zeolite, (vi) a two phase solvent system for liquid-liquid extraction and (vii) a Lewis acid; recovering a solution containing a ligand of the formula(RO)POZOP(OR); andcontacting the solution with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel to produce the nickel/ligand catalyst.

US Patent:

6893996, May 17, 2005

Filed:

Nov 26, 2001

Appl. No.:

09/994102

Inventors:

Luis A. Chu - Forsyth IL, US
Lucy M. Clarkson - Kennett Square PA, US
Norman Herron - Newark DE, US
Ronald J. McKinney - Wilmington DE, US
Kenneth G. Moloy - Hockessin DE, US
Zeru Tekie - Beaumont TX, US

Assignee:

Invista North America S.A.R.L. - Wilmington DE

International Classification:

B01J031/00
B01J027/185

US Classification:

502167, 502169, 502213

Abstract:

A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.

US Patent:

6897329, May 24, 2005

Filed:

Jan 14, 2003

Appl. No.:

10/341860

Inventors:

Scott C. Jackson - Wilmington DE, US
Ronald J. McKinney - Wilmington DE, US

Assignee:

Invista North America S.A.R.L. - Wilmington DE

International Classification:

C07F015/04
B01J031/00
C07C255/00

US Classification:

556 18, 558338, 502155

Abstract:

A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel the nickel chloride being introduced as an aqueous solution and the water being removed concurrently with the reduction reaction by azeotropic distillation.

US Patent:

6936171, Aug 30, 2005

Filed:

Jan 8, 2003

Appl. No.:

10/338567

Inventors:

Scott C. Jackson - Wilmington DE, US
Ronald J. Mckinney - Wilmington DE, US

Assignee:

Invista North America S.a.r.l. - Wilmington DE

International Classification:

B01D011/00

US Classification:

210634, 210636, 210639, 558335, 558338

Abstract:

Disclosed herein is a process for recovering diphosphite-containing compounds from a mixture comprising diphosphite-containing compounds and organic dinitriles and Lewis acid, using liquid-liquid extraction, wherein the molar ratio of organic mononitrile present to organic dinitrile from about 0. 01 to about 2. 5 and wherein the mixtured is treated with a Lewis base compound selected from the group consisting of monodentate phosphite ligand, alcohol, water, organoamines, ammonia and basic resin, and wherein the extraction solvent is a saturated or unsaturated alkane or saturated or unsaturated cycloalkane; wherein the Lewis base compound is selected from the group consisting of water, methanol, ethanol, isopropanol, ethylene glycol, phenol, cresol, or xylenol. Also disclosed are pre-treatments to enhance extractability of the diphosphite-containing compounds.

US Patent:

7709673, May 4, 2010

Filed:

Jul 12, 2007

Appl. No.:

11/776922

Inventors:

Thomas Foo - Wilmington DE, US
Sigridur S. Kristjansdottir - Wilmington DE, US
Ronald J. McKinney - Wilmington DE, US
Ron Ozer - Wilmington DE, US

Assignee:

Invista North America S.A R.L. - Wilmington DE

International Classification:

C07C 253/00

US Classification:

558332

Abstract:

The invention provides a continuous process for the production of 3-pentenenitrile comprising:.

US Patent:

7880028, Feb 1, 2011

Filed:

Jul 12, 2007

Appl. No.:

11/776932

Inventors:

Thomas Foo - Wilmington DE, US
Sigridur S. Kristjansdottir - Wilmington DE, US
Ronald J. McKinney - Wilmington DE, US
Ron Ozer - Wilmington DE, US
Paul S. Pearlman - Thornton PA, US

Assignee:

Invista North America S.A R.L. - Wilmington DE

International Classification:

C07C 253/10

US Classification:

558338, 558335

Abstract:

The invention provides a continuous process for the production of 3-pentenenitrile, comprising:.

US Patent:

7919646, Apr 5, 2011

Filed:

Jul 12, 2007

Appl. No.:

11/776904

Inventors:

James Michael Garner - Wilmington DE, US
Christian P. Lenges - Wilmington DE, US
Ronald J. McKinney - Wilmington DE, US
Wilson Tam - Boothwyn PA, US

Assignee:

Invista North America S.A R.L. - Wilmington DE

International Classification:

C07C 253/00

US Classification:

558338, 502162

Abstract:

The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyanide at a temperature in the range of about 0 C. to about 150 C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited:.

US Patent:

7935647, May 3, 2011

Filed:

Dec 15, 2006

Appl. No.:

11/611486

Inventors:

Nicole M. Reinartz - Wilmington DE, US
Rachel Kahn - Wilmington DE, US
Ronald James McKinney - Wilmington DE, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

B32B 27/12

US Classification:

442394, 442399

Abstract:

The present invention relates to a laminate prepared in part from a continuous acid polysaccharide film. In various embodiments, the laminate is useful for fabrication as a protective article as it typically is largely impermeable to hazardous chemical and biological agents, but is sufficiently permeable to water vapor that, if worn as protective apparel, it is both protective and comfortable to wear.