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 (JP)
KATO TOMOHISA (JP)
ONO YASUHIRO (JP)
KATO TOMOHISA (JP)
ONO YASUHIRO (JP)
Application Number:
PCT/JP2018/041207
Publication Date:
June 06, 2019
Filing Date:
November 06, 2018
Export Citation:
Assignee:
SANYO CHEMICAL IND LTD (JP)
International Classes:
G03G9/087; G03G9/097
Domestic Patent References:
| WO2015170705A1 | 2015-11-12 |
Foreign References:
| JP2000250264A | 2000-09-14 | |||
| JP2008287229A | 2008-11-27 | |||
| JP2003280245A | 2003-10-02 | |||
| US20100159385A1 | 2010-06-24 | |||
| JP2001249492A | 2001-09-14 | |||
| JP2004212739A | 2004-07-29 | |||
| JP2000075549A | 2000-03-14 | |||
| JP2007293323A | 2007-11-08 | |||
| JP2002131979A | 2002-05-09 | |||
| JP2005326842A | 2005-11-24 | |||
| JP2017058587A | 2017-03-23 | |||
| JPH05224463A | 1993-09-03 | |||
| JP2008089829A | 2008-04-17 | |||
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| JP2015132645A | 2015-07-23 | |||
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Other References:
ROBERT F. FEDORS ET AL., POLYMER ENGINEERING AND SCIENCE, vol. 14, no. 2, February 1974 (1974-02-01), pages 147 - 154
ROBERT F. FEDORS ET AL., POLYMER ENGINEERING AND SCIENCE, vol. 14, no. 2, February 1974 (1974-02-01), pages 147 - 154
See also references of EP 3719577A4
ROBERT F. FEDORS ET AL., POLYMER ENGINEERING AND SCIENCE, vol. 14, no. 2, February 1974 (1974-02-01), pages 147 - 154
See also references of EP 3719577A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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