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:
Sep. 20, 1988
Filed:
Sep. 19, 1983
Roy A Olofson, State College, PA (US);
Gary P Wooden, State College, PA (US);
Jonathan T Martz, Pittsburgh, PA (US);
Societe Nationale des Poudres et Explosifs, Paris, FR;
Abstract
A process for the preparation of vinyl carbamates of formula I ##STR1## is described which comprises heating an .alpha.-halogeno-carbamate of formula II ##STR2## in which X is a halogen atom at a temperature between 70.degree. and 250.degree. C. for a period of time between several minutes up to several hours. R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different. The process is applicable to a great variety of products in which R.sub.1, R.sub.2, R.sub.3, and R.sub.4 have different meanings. The process permits to prepare in a simple and economical fashion, vinyl carbamates, which have industrial value and novel vinyl carbamates.