Michael J. Wilhelm
Engineering at Cezanne Ave, Baton Rouge, LA

License number

Louisiana EI.0005498

Issued Date

Jan 1, 1900

Professional information

Director Business Development At Albemarle

Position:

Director Business Development at Albemarle

Location:

Baton Rouge, Louisiana Area

Industry:

Chemicals

Work:

Albemarle since May 2012 - Director Business Development Albemarle Mar 2008 - May 2012 - Director Corporate Development

Education:

University of Missouri-Rolla

Blends Of Diamines Having Reduced Color

US Patent:

2008026, Oct 23, 2008

Filed:

Dec 21, 2006

Appl. No.:

12/096128

Inventors:

John Y. Lee - Baton Rouge LA, US
David W. Owens - Baton Rouge LA, US
Paul L. Wiggins - Baton Rouge LA, US
Richard D. Glass - Baton Rouge LA, US
Michael J. Wilhelm - Baton Rouge LA, US
Robert Phillip Slicker - Baton Rouge LA, US

Assignee:

ALBEMARLE CORPORATION - Baton Rouge LA

International Classification:

C08G 71/02, C07C 211/54, C08G 71/04, C07C 211/50

US Classification:

528 68, 564330, 564443, 25218311

Abstract:

This invention provides a blend which comprises (i) at least one aromatic primary diamine, with which has been blended a color-minimizing amount of at least one N,N-dmydrocarbylhydroxylamine, wherein the aromatic primary diamine is in the form of one benzene ring having two primary amino groups on the ling, which amino groups are meta or para relative to each other, and in which each position ortho to a primary amino group bears an alkyl group, and (ii) at least one aromatic secondary diamine having a Gardner color number no more than about 7, wherein said aromatic secondary diamine either is in the form of one benzene ring having two secondary amino groups on the ring, or is in the form of two benzene rings connected by an alkylene bridge and having one secondary amino group on each ring. Optionally, at least one N,N-dihydrocarbylhydroxylamine has been blended with the aromatic secondary diamine.