US T889002 I4
Description (OCR text may contain errors)
DEFENSIVE PUBLlCATlGN UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16. 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED AUGUST 31, 1971 T889,0il2 STABILIZATION 0F 1,1,1-TRICHLOROETHANE Milton J. Blankenship, Alte Landsirasse 64, Oberrieden, Switzerland, and Ralph McCarthy, 1865 Bush St, San Francisco, Calif. 9410? Filed Dec. 15, 1969, Ser. No. 885,339 lint. Cl. C07c 17/42 US. Cl. 260--652.5R No Drawing. 6 Pages Specification The reaction of 1,1,1-trichloroethane with aluminum is inhibited by the presence in the 1,1,1-trichloroethane of a small amount of a dissolved amino compound of the formula.
wherein R is a morpholinoalkyl radical, an alkylated morpholinoalkyl radical, a phenylthiomethyl radical, an alkylphenylthiomethyl radical, an aminoalkyl radical, an N-alkylated aminoalkyl radical, a polyglycol residue, a polyglycolamine residue, a halopyridinecarbonyl radical, an aminoalkylcyclohexanealkyl radical, or a dialkyl phosphono radical, R is hydrogen, an alkyl radical, an aminoalkyl radical, a polyalkylenepolyamine residue, an alkanoyl radical, or a polyglycol residue, and R is hydrogen, an alkyl radical, or a polyglycol residue. Concentrations of the order of 0.1-10 weight percent of solvent composition provide significant inhibition of the aluminum reaction.