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:
Aug. 07, 1979
Filed:
Nov. 15, 1977
Applicant:
Inventors:
Gabriello Illuminati, Rome, IT;
Ugo Romano, Milan, IT;
Assignee:
Snamprogetti S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560132 ; 560134 ; 560163 ;
Abstract
An aromatic urethane (e.g., methyl naphthyl urethane) is prepared by reacting an aromatic hydroxy compound, such as alpha-naphthol, with an aliphatic urethane, such as dimethyl urethane, in the presence of a catalyst consisting of a Lewis acid.