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:
Nov. 28, 1978
Filed:
Jan. 30, 1978
Applicant:
Inventors:
Leo Kim, Houston, TX (US);
Sunny C Tang, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
26034837 ;
Abstract
2,3-Butanedione impurity is removed from epichlorohydrin by contacting the impurity containing epichlorohydrin with a macroreticular poly(t-butyl acrylate) resin having a pore volume of about 0.5 ml/ml, an average pore diameter of about 90 angstroms and a surface area of about 450 m.sup.2 /gm.
Kim, Leo. (1978). Epichlorohydrin purification process (U.S. Patent No. 4127593). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4127593
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile