Method for preparing alkyltin trihalides
CA 1069129 A · Owner: M And T Chemicals Inc. · Inventors: Linfield, Myron; Davis, William R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure - Alkyltin trihalides are prepared by reacting a stannous halide with the corresponding alkyl halide in the presence of specific catalysts. By conducting the reaction under superatmospheric pressure the amount of catalyst required is significantly reduced. Recycling the catalyst decreases process costs and improves the yield of organotin trihalide. -i-
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 1, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.