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:
Mar. 17, 1987
Filed:
Oct. 29, 1985
Applicant:
Inventor:
George H Yoakum, Germantown, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568621 ; 568623 ;
Abstract
A process for production of improved polyethylene glycol (PEG) is disclosed. This process overcomes the toxicity that results from using the known (and impure) PEG-fusion reagent by incorporation of a purification method that removes the toxic elements always present in PEG preparations stored above 0.degree. C. in the presence of oxygen.