Patent Yard Sign in
Expired Canadian patentCanada

Process for the production of quick-curing epoxide resin coatings which are resistant to chemicals and to weathering

CA 1060731 A · Owner: Ciba-Geigy Ag · Inventors: Audykowski, Thaddeus

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Abstract of the Disclosure The invention relates to the production of chemi-, cally resistant epoxide resin layers on solid surfaces. The liquid component (A) which contains an epoxide compound is preferably mixed, and applied, together with the component (B) containing the curing agent in a spraying, apparatus. The coating is then cured. The curing agent contained in (B) consists essentially of Zn(BF4)2 quite, specific ethers or thioethers, an acid ester of the phosphoric or pyrophosphoric acids or a certain phosphonic acid ester and water. The system is characterised by a short curing time and produces coatings which adhere strongly and are resistant to chemicals. If the component (A) …

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

  • Granted August 21, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 21, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedAugust 21, 1979
Term endedAugust 21, 1996
Patent numberCA 1060731 A
Classification (IPC)B32B27/38 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedAug 21, 1979Term endedAug 21, 1996

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.