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:
Oct. 31, 2000
Filed:
Mar. 29, 1999
Cheruthur Govindan, Murrysville, PA (US);
John M Pascone, Harrison City, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Describes a method of producing N-1-alkenyl carbonylamino compounds represented by the following general formula I, ##STR1## wherein R.sub.1 is the residue of an active hydrogen functional material, n is a number from 1 to a number equal to the number of active hydrogen groups of said active hydrogen functional material, X is selected from O, S and N(R.sub.5), R.sub.5 being hydrogen, hydrocarbyl, or R.sub.5 and R.sub.1 may together form a cyclic ring, R.sub.2, R.sub.3 and R.sub.4 are each independently selected from hydrogen, C.sub.1 -C.sub.4 alkyl and C.sub.2 -C.sub.4 alkenyl. The method comprises the steps of: (a) heating 2-alkenoyl azide in the presence of a first inert solvent in a first reaction zone, the first inert solvent being substantially free of active hydrogen functional material; (b) transferring volatile product as it is formed in the first reaction zone of step (a) into a separate second reaction zone containing a reactive composition comprising active hydrogen functional material having active hydrogen groups selected from the group consisting of hydroxyl, thiol, primary amine, secondary amine and combinations thereof; and (c) withdrawing N-1-alkenyl carbonylamino compound from the second reaction zone.