Hybrid plastisol/hot melt compositions
CA 2493515 C · Owner: Parker, Anthony A. · Inventors: Parker, Anthony A.; Stumphauzer, William C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multiple component adhesive composition is comprised of a polymeric reinforcing phase component and an adsorbent phase component both as , heterogeneously dispersed particulates in an adsorbed liquid component. The reinforcing phase component is substantially incompatible with the liquid component, the adsorbent phase component is compatible or substantially more compatible with the liquid component than is the reinforcing phase component and the reinforcing phase and adsorbent phase components are partially compatible with one another. The composition has the rheological characteristics of a liquid dispersion and is capable of forming a molten blend at elevated temperatures that …
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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
- Filed July 30, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2025.
- 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.