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:
Apr. 24, 1979
Filed:
Aug. 18, 1978
Applicant:
Inventors:
Wood E Hunter, Memphis, TN (US);
Theodore P Sieder, Sauk Village, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C08L / ;
U.S. Cl.
CPC ...
2605 / ; 260 / ; 2606 / ; 526295 ; 526310 ;
Abstract
Water-soluble polymers of diallyl dimethyl ammonium chloride can be prepared from monomer solution containing a large amount of an alkali metal halide salt. Additionally, a method is disclosed for making high quality monomer which involves purification of allyl chloride which is used to prepare the starting monomeric material, optimum temperature control during caustic addition, and partial distillation to remove harmful impurities.