The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2013
Filed:
Jan. 31, 2011
William J. Kruper, Sanford, MI (US);
Tina Arrowood, Coleman, MI (US);
Bruce M. Bell, Higgins Lake, MI (US);
John Briggs, Midland, MI (US);
Robert M. Campbell, Midland, MI (US);
Bruce D. Hook, Lake Jackson, TX (US);
Anh Nguyen, Lake Jackson, TX (US);
Curt Theriault, Hemlock, MI (US);
Ralf Fitschen, Stade, DE;
William J. Kruper, Sanford, MI (US);
Tina Arrowood, Coleman, MI (US);
Bruce M. Bell, Higgins Lake, MI (US);
John Briggs, Midland, MI (US);
Robert M. Campbell, Midland, MI (US);
Bruce D. Hook, Lake Jackson, TX (US);
Anh Nguyen, Lake Jackson, TX (US);
Curt Theriault, Hemlock, MI (US);
Ralf Fitschen, Stade, DE;
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to a process for converting a multihydroxylated-aliphatic hydrocarbon or ester thereof to a chlorohydrin, by contacting the multihydroxylated-aliphatic hydrocarbon or ester thereof starting material with a source of hydrogen chloride at superatmospheric, atmospheric and subatmospheric pressure conditions for a sufficient time and at a sufficient temperature, preferably wherein such contracting step is carried out without substantial removal of water, to produce the desired chlorohydrin product; wherein the desired product or products can be made in high yield without substantial formation of undesired overchlorinated byproducts; said process carried out without a step undertaken to specifically remove volatile chlorinated hydrocarbon by-products or chloroacetone, wherein the combined concentration of volatile chlorinated hydrocarbon by-products and chloroacetone is less than 2000 ppm throughout any stage of the said process.