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:
Jul. 02, 1991
Filed:
Oct. 06, 1989
Applicant:
Inventors:
Harry W Gibson, Blacksburg, VA (US);
Yadollah Delaviz, Blacksburg, VA (US);
Assignee:
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549352 ;
Abstract
Bis(carboalkoxy-substituted phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed by first reacting a functionalized dihydroxy aromatic compound with a hydroxy protecting group-substituted halopolyether, deprotecting the resulting product to form the diol, forming the corresponding tosylate, and reacting the tosylate with the same or analogous diol in a cyclization reaction to form the crown ether compound.