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:
Jun. 10, 1997
Filed:
Mar. 08, 1995
Applicant:
Inventors:
Assignee:
Degussa Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
549541 ; 549521 ;
Abstract
The reaction mixture obtained in the production of 2,3-epoxypropyltrialkylammonium chlorides by treatment of chlorohydroxypropyltrialkylammonium chlorides with alkaline acting materials in aqueous medium containing impurities which create problems in the subsequent use of the 2,3-epoxypropyltrialkylammonium chloride. According to the invention the reaction mixture is freed from these impurities by separating it from undissolved impurities by employing at least about 0.2 mole of 2,3-epoxypropyltrialkylammonium chloride per mole of water.