Binder containing acrylic resin and polycarbonate for triaryl pyrazoline compound in charge transport layer
CA 1066106 A · Owner: International Business Machines Corporation · Inventors: Presley, Kenneth D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure This invention relates to an improvement in photoconductive compositions of layered electrophotographic plates and related electrophotographic processes and particularly in the charge transport layer thereof which includes a triaryl pyrazoline compound in conjunction with a binder material wherein the improvement comprises the use of a triaryl pyrazoline compound and a mixture of binder materials comprising about 3 to 25% by weight acrylic resin and about 75 to 97% by weight polycarbonate.
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 November 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 13, 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.
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.