Coating and joint-sealing compositions contains alkylthio substituted aromatic diamines as hardeners for polyisocyanates
CA 2096466 A1 · Owner: Walter, Ulrich · Inventors: Hentschel, Karl-Heinz; Walter, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mo-3886, LeA 29,020, COATING AND JOINT-SEALING COMPOSITIONS CONTAINS ALKYLTHIO SUBSTITUTED AROMATIC DIAMINES AS HARDENERS FOR POLYISOCYANATES ABSTRACT OF THE DISCLOSURE, The present invention relates to a coating composition or joint-sealing composition which may be cured at room temperature to form bubble-free products and contains i) a polyisocyanate component and, ii) a hardener component containing a) one or more aromatic diamines having at least one methyl substituent and at least one alkylthio substituent with 1 to 4 carbon atoms in the ortho position to each amino group and, b) optionally one or more organic polyhydroxyl compounds or organic polyamines other than those set forth in …
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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 May 18, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2015.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.