Coating composition of a glycidyl acrylic polymer, an aminoester acrylic polymer and a polyester or a polyesterurethane
CA 2089419 A1 · Owner: Palmer, George T. · Inventors: Theobald, Ruth A.; Palmer, George T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating composition which cures at ambient temperatures and contains a binder and a solvent for the binder, wherein the binder contains about: A. an acrylic polymer A having pending from the polymer backbone aminoester, groups hydroxy aminoester groups or, hydroxyamine groups B. an acrylic crosslinking polymer B of polymerized monomers of at least 3% by weight of a glycidyl constituent of, glycidyl methacrylate or acrylate and, the remainder of the monomers are alkyl methacrylate an acrylate each having, 1-12 carbon atoms in the alkyl group: C. a polyester or polyesterurethane, polymer C having at least 2 pendant groups of the formula, ;, the composition is useful as an exterior finish …
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 February 12, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.