Hydrogenated petroleum resins and their use in adhesives
CA 1298027 C · Owner: Luvinh, Quoc · Inventors: Maroie, Serge M.J.P.; Luvinh, Quoc; Faissat, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydrogenated resins comprising from 5 to 80 wt.% of units derived from an olefinically unsaturated aromatic compound from 5 to 80 wt.% of units derived from C5 olefins and/or diolefins and/or C6 olefins and/or diolefins or a mixture of C5 and C6 olefins and/or diolefins - and from 7 to 45 wt.% of units derived from a terpene, preferably the aromatic content has been reduced to between 3 to 75% by hydrogenation and their use as tackifiers for adhesives.
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 March 24, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 24, 2009.
- 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.