Polymeric compositions and components therefore
CA 2026015 C · Owner: Carter, Jeffrey Thomas · Inventors: Carter, Jeffrey Thomas; Mcgrail, Patrick Terence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PURPOSE:To obtain the titled composition having excellent water-resistant adhesive strength and wood, breakage ratio by adding specific amounts of an epoxy resin and optionally an epoxy resin hardener to a, formaldehyde resin such as melamine-phenol-formaldehyde resin. CONSTITUTION:The objective composition is produced by compounding (A) 100pts.wt. of a formaldehyde, resin selected from melamine-formaldehyde resin urea-melamine-formaldehyde , resin, melamine-phenol-formaldehyde resin and urea-melamine-phenol-formaldehyde resin with (B) 1-20pts.wt. of, an epoxy resin (e.g bisphenol A glycidyl ether, etc.) and optionally (C) 0- 10pts.wt. of an epoxy resin hardener, (preferably an amino …
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 24, 1990 and granted January 1, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2012.
- 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.