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US 9,448,499 B2Granted
Electrophotographic toner using bioplastic and method of producing the same
AssigneeCasio Computer Co., Ltd.
InventorsKenji Kihira, Hideki Ikeda, Yuichiro Iegaki, Yuta Kan
Life of this patent
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Abstract
An electrophotographic toner having good grindability, and excellent fixability and durability, and a method of producing the same are provided. The electrophotographic toner includes an amorphous bioplastic having a weight average molecular weight (Mw) of 30,000 to 100,000, and at least one of a phenol resin and a terpene phenol resin as a grinding aid.
Claims9
An electrophotographic toner comprising:
- an amorphous polylactic acid having a weight average molecular weight (Mw) of 30,000 to 47,500;
- and
- a grinding aid which is at least one resin selected from the group consisting of a phenol resin and a terpene phenol resin.
Dependencies are inferred from the claim text.