Isocyanto-functional organo silanes and adhesives therefrom
CA 1095926 A · Owner: Lord Corporation · Inventors: Gervase, Nicholas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides isocyanatosilanes characterized by the presence of at least one free isocyanate group and containing a single silane grouping having the structure: said reactive isocyanate group being connected to said silane grouping through a divalent organic radical having at least one carbon atom, and wherein R is a divalent aliphatic cycloalipha-, tic or aromatic radical having from 1 to 20 carbon atoms; R1 is a monovalent aliphatic, cycloalphatic or aromatic radical having from 1 to 20 carbon atoms; R2 is a monovalent aliphatic cycloaliphatic or aromatic organic radical having from 1 to 8 carbon atoms; and a is zero or 1. Compositions comprising at least one of said isocyanato …
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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 February 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 17, 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.