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:
Dec. 20, 1983
Filed:
Dec. 12, 1980
Applicant:
Inventor:
Richard A Bartsch, Lubbock, TX (US);
Assignee:
PCR Research Chemicals, Inc., Gainesville, FL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549349 ; 549348 ; 548216 ; 525384 ;
Abstract
There is provided a new class of crown ethers characterized by an --OH functional group attached to a carbon atom in the heterocyclic ether ring portion and derivatives thereof. A novel process for making such crown ethers is also provided which is characterized by reacting a bisphenol ether with an epihalohydrin to effect ring closure and provide the appendant --OH group. These products are especially useful as complexing agents.