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. 16, 1991
Filed:
Dec. 26, 1989
Applicant:
Inventors:
William G Chiang, Fayetteville, NY (US);
Richard M Jobbins, Marcellus, NY (US);
Michael P Popule, Syracuse, NY (US);
Assignee:
Polypure, Inc., Solvay, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560222 ; 560209 ; 560223 ;
Abstract
The preparation of 3-(R)acryloyloxy-2-hydroxypropyltrialkylammonium halide monomer is enhanced by carrying out the reaction in a media which is a non-solvent for the monomer, but is a solvent for the reactants.