Method of producing vinyl acetate
CA 1076097 A · Owner: Bayer · Inventors: Nakamura, Michihiro; Fujiwara, Yuzuru; Yasui, Teruo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing vinyl acetate by reacting ethylene, oxygen and acetic acid in vapor phase with the use of a porous, particulate catalyst which comprises 0.3 to 3.0 weight % of palladium metal, 0.0157 to 1.8 weight % of gold metal and 1 to 30 percent by weight of an alkali metal acetate based on the weight of the carrier, which are supported on carrier particles such that (1) at least 90% by weight each of the supported palladium and gold is distributed within the outer 30% of the particle radius and (2) the proportion of gold to palladium ranges from 5 to 60% by weight based on the total weight of gold and palladium.
Read the whole patent
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 April 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 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
Timeline From CIPO dates
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.