Crosslinkers and chain extenders for room temperature vulcanization or crosslinking of polymers
CA 2061005 A1 · Owner: Dow Corning Corporation · Inventors: Lee, Chi-Long; King, Russell Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Silicon crosslinkers and chain extenders having at least two heterocyclic Si-N groups per molecule can be used to make compositions which cure in contact with moisture without generating a volatile leaving compound. These heterocyclic Si-N groups are illustrated by the following groups, , , , , and, These compositions are useful as coatings for substrates encapsulants and sealants.
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
- Filed February 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.