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:
Jun. 29, 1982
Filed:
Aug. 28, 1980
Degussa Aktiengesellschaft, Frankfurt, DE;
Abstract
There are prepared nitrogen containing alkoxysilanes of the formula (RO).sub.3-n (CH.sub.3).sub.n Si(CH.sub.2).sub.m NHCON.sub.3 in which R is an alkyl group having 1 to 3 carbon atoms, n is 0, 1 or 2 and m is 1, 2 or 3 by a process comprising dissolving in an inert solvent an isocyanate group containing silane of the formula (RO).sub.3-n (CH.sub.3).sub.n Si(CH.sub.2).sub.m N.dbd.C.dbd.O in which R, n and m are as defined above and reacting the silane with a water free hydrogen nitride or with hydrogen halide and an alkali metal-alkaline earth metal-, or ammonium azide at a temperature between 0.degree. C. and the boiling point of the inert solvent. The compounds are useful in making phosphinimines.