Bio-based toner composition comprising a thermoplastic polymer
CA 2601434 C · Owner: Battelle Memorial Institute · Inventors: Vijayendran, Bhima; King, Jerry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aspects of the invention may include embodiments having a thermoplastic toner composition comprising a mixture of (a) an amorphous thermoplastic polymer having a carboxyl or hydroxyl functional polyester wherein the carboxyl or hydroxyl functional polyester is derived from a dianhydrohexitol a first , diacid , moiety, and a second diacid moiety optionally a monoacid may also be , included. The polymer may be derived from at least one bio-based monomer. The polymer may be a Tg between about 50°C. and about 80°C. Also included in the toner , may be (b) a coloring agent dispersed in the amorphous thermoplastic polymer; wherein the toner is in the form of a powder having a mean particle …
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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 20, 2006 and granted October 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.