Thermal dye diffusion coating and substrate
CA 2281901 A1 · Owner: Kronzer, Francis Joseph · Inventors: Kronzer, Francis Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating suitable for receiving an image by dye diffusion printing which includes a thermoplastic polymer having a glass transition temperature of at least about 30 ~C and a powdered plasticizer having a melting point of at least about 80 ~C. The thermoplastic polymer may have a glass transition temperature of at least about 40 ~C. For example the thermoplastic polymer , may be a vinyl chloride-acrylate copolymer. The plasticizer may be an aromatic carboxylic acid ester, such as cyclohexane dimethanol dibenzoate. The average particle size of the powdered plasticizer may be no greater than about 20 micrometers. The weight ratio of the thermoplastic polymer to the plasticizer …
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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 March 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2020.
- 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.