Coatable, thermally curable binder precursor solutions modified with a reactive diluent
CA 2087079 A1 · Owner: Minnesota Mining And Manufacturing Company · Inventors: Barber, Loren L. Jr.; Preston, Jay B.; Christianson, Todd J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coatable thermally curable binder precursor, solution the solution including a 30-95% solids solution of a thermally curable resin and a reactive diluent. The reactive diluent may be selected from urea derivatives, alkylsubstituted 2-aminoalcohols .beta.-ketoalkylamides, nitro alkanes, and poly(oxyalkylene) amines, and has at least one functional group independently reactive with methylol groups of the resin and with aldehydes. The thermally curable resin may include up to 50% (wt of total resin) of an ethylenically unsaturated monomer. Methods of making abrasive articles are also presented.
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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 January 11, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 11, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2015.
- 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.