Method for functionalizing synthetic mesoporous crystalline material
CA 2069722 C · Owner: Mobil Oil Corporation · Inventors: Vartuli, James Clarke; Calabro, David Charles; Pelrine, Bruce Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is described for modifying a synthetic mesoporous crystalline material by contacting with a treatment composition M'X'Y'n wherein M' is an element of Groups IIA, IIIA, IVA, VA, VIA, VIIIA IB, IIB, IVB, VB or VIB; X' is halide, hydride al~oxide of C1-6, or, acetate; Y' is X or phosphine sulfide, carbonyl or, cyano; and n = 1-5. The contacted crystalline material becomes functionalized and the functionalized material can be used as a sorbent or a catalyst component.
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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
- Filed May 27, 1992 and granted December 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2014.
- 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.