Method of preparing tungsten hexacarbonyl containing polymers and polymers prepared thereby
CA 1110056 A · Owner: Ppg Industries, Inc. · Inventors: Leatherman, Ivan 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, Disclosed are light absorbing solutions of tungsten hexacarbonyl in olefinically unsaturated carboxylic acids and light absorbing polymers prepared from allyl carbonate, olefinically unsaturated acid monomers and, tungsten hexacarbonyl. Also disclosed is a process for preparing such light absorbing polymers.
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 October 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 1998.
- 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.