Use of silane-grafted amorphous poly-.alpha.-olefins as moisture-crosslinking adhesive base material or adhesive
CA 2214334 A1 · Owner: Huls Aktiengesellschaft · Inventors: Bickert, Peter; Wey, Hans Gunther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Adhesive bonds having high adhesion, high cohesion and high thermal stability are obtained by using a silane-grafted largely amorphous poly-.alpha.-olefin, where a) the silane, grafted on has at least one olefinic double bond and from one to three alkoxy groups attached directly to the silicon and, b) the adhesive is capable of being crosslinked by means of water after application to a substrate.
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 September 2, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 2019.
- 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.