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John C Wittenauer, 62Farmington Hills, MI

John Wittenauer Phones & Addresses

Farmington Hills, MI   

1516 River Terrace Dr, McHenry, IL 60051    815-7595937   

Johnsburg, IL   

287 Hillandale Rd, Sanders, KY 41083    815-2363304   

609 Marina Cir, Soddy Daisy, TN 37379    423-3328785   

Chattanooga, TN   

Findlay, OH   

Morgantown, WV   

Mentions for John C Wittenauer

Publications & IP owners

Us Patents

Chlorendic Anhydride/Maleic Anhydride Compositions And Method For Preparing Same

US Patent:
2005018, Aug 18, 2005
Filed:
Feb 12, 2004
Appl. No.:
10/777345
Inventors:
Wesley McConnell - Grayslake IL, US
Sujatha Kondubhotla - Libertyville IL, US
Makarand Joshi - Grayslake IL, US
Eric Zimmermann - Chongqing, CN
John Wittenauer - Soddy Daisy TN, US
Neal Netzel - South Elgin IL, US
Bruce Stanhope - Yardley PA, US
Vladimir Zhukhovytskyy - Glenview IL, US
International Classification:
C08G063/00
US Classification:
528271000
Abstract:
Mixtures of chlorendic anhydride and maleic anhydride that are completely free of liquid hydrocarbons and liquid halohydrocarbons without the need for any purification are novel and are prepared by reacting hexachlorocyclopentadiene with a stoichiometric excess of maleic anhydride in the absence of solvents. The process is useful for preparing other Diels-Alder reaction products from maleic anhydride.

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