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Patent Searching and Data


Title:
TONER BINDER AND TONER
Document Type and Number:
WIPO Patent Application WO/2019/107088
Kind Code:
A1
Abstract:
The present invention pertains to a toner binder containing a polyester resin (A) and a vinyl resin (B), wherein the polyester resin (A) has an acid value of at least 2 mgKOH/g, the vinyl resin (B) has a weight average molecular weight of 4,000-40,000, the vinyl resin (B) is a polymer having as an essential constituent monomer, a monomer (m) in which the SP value of a homopolymer of the monomer (m) is 11.5-16.5, the weight percentage of the monomer (m) among the monomers constituting the vinyl resin (B) is at least 1 wt% on the basis of the total weight of the monomers constituting (B), the weight ratio [(A)/(B)] of the polyester resin (A) to the vinyl resin (B) is 80/20-99.5/0.5, and when the vinyl resin (B) contains a polyethylene unit (C11) having a degree of polymerization of 70-120 and/or a polypropylene unit (C12) having a degree of polymerization of 70-210, the total weight percentage of the polyethylene unit (C11) and the polypropylene unit (C12) is 9 wt% or less on the basis of the weight of the vinyl resin (B).

Inventors:
HONDA, Masaru (11-1, Ikkyo Nomoto-cho, Higashiyama-ku, Kyoto-sh, Kyoto 95, 〒6050995, JP)
KATO, Tomohisa (11-1, Ikkyo Nomoto-cho, Higashiyama-ku, Kyoto-sh, Kyoto 95, 〒6050995, JP)
ONO, Yasuhiro (11-1, Ikkyo Nomoto-cho, Higashiyama-ku, Kyoto-sh, Kyoto 95, 〒6050995, JP)
Application Number:
JP2018/041207
Publication Date:
June 06, 2019
Filing Date:
November 06, 2018
Export Citation:
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Assignee:
SANYO CHEMICAL INDUSTRIES, LTD. (11-1, Ikkyo Nomoto-cho Higashiyama-ku, Kyoto-sh, Kyoto 95, 〒6050995, JP)
International Classes:
G03G9/087; G03G9/097
Foreign References:
JP2000250264A2000-09-14
JP2008287229A2008-11-27
JP2003280245A2003-10-02
US20100159385A12010-06-24
JP2001249492A2001-09-14
JP2004212739A2004-07-29
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (5-36, Miyahara 3-chome Yodogawa-ku, Osaka-sh, Osaka 03, 〒5320003, JP)
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