Aqueous composition surface coating
CA 2096566 A1 · Owner: Miwa, Hiroshi · Inventors: Kuwajima, Teruaki; Miwa, Hiroshi; Watanabe, Masakazu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous composition employed to form protective film coatings on, for example, automobile body surfaces comprises an, aqueous resin having polysiloxy groups and a cross-linking agent including an amino resin, and a non-yellowing multi-functional, blocked isocyanate compound. Thus composed the aqueous, composition can be employed to form a transparent superficial film over a pigmented base film in a multi-film aqueous coating exhibiting acid-proof and water-repellent characteristics. A process in which the base film is preheated is effective for improving the appearance of the surface coating. 36
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 May 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.