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, 1977
Filed:
Nov. 21, 1975
Applicant:
Inventors:
Assignee:
Commer S.r.l., Lodi (Mi), IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2604297 ; 2041 / ;
Abstract
In the process for the preparation of alkyl tin halides by means of direct conversion of tin with aliphatic halides, the alkyl halide is fed in such a way gradually to the gas space over the further reaction components that there is an overpressure of no more than a few cms of mercury. The reaction is carried out in the presence of a liquid acid amide in quantities of 0.65 to 2.3 mol per gramatom of tin and in the presence of catalytic amounts of iodine and/or iodide at raised temperatures. The reaction is promoted under the influence of ultraviolet irradiation and by the addition of a catalyst of the type promoting free radial initiation reactions. SU