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:
Dec. 02, 1980
Filed:
Sep. 08, 1978
Richard A Reck, Hinsdale, IL (US);
Akzona Incorporated, Asheville, NC (US);
Abstract
A process for preparing certain quaternary ammonium compositions from tertiary amines selected from the group consisting of tertiary amines containing one or two long-chain aliphatic groups, and mixtures thereof, is disclosed. The process comprises reacting the tertiary amine with dimethyl sulfate, diethyl sulfate, or trimethyl phosphate. The reaction is performed in a reaction medium selected from the group consisting of compounds which have a melting point below about 100.degree. C., preferably are capable of dissolving the desired quaternary ammonium compound, and which contain either (i) an ester linkage derived from a fatty acid, (ii) a primary hydroxyl group, or (iii) both, and mixtures of said compounds. The reaction typically is performed at a temperature between about 50.degree. C. and about 150.degree. C., for a length of time sufficient to convert at least a portion of the tertiary amine to the desired quaternary ammonium compound.