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Patent Searching and Data


Title:
TONER BINDER AND TONER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2010/114020
Kind Code:
A1
Abstract:
Disclosed is a toner binder which has high storage stability and can achieve both of good low-temperature fixability and good hot offset resistance (a broadened fixing temperature range). Specifically disclosed is a toner binder comprising, as constituting units, a carboxylic acid component (x) and a polyol component (y), wherein the component (x) comprises two or more kinds of dicarboxylic acids (x1), selected from among aromatic dicarboxylic acids and ester-forming derivatives of the same, in a total amount of 80 mol% or more and a trivalent or higher polycarboxylic acid (x2); the component (y) comprises a polyester resin (P) which is constituted by a polyester resin (A) comprising 80 mol% or more of an aliphatic diol (y1) having 2 to 10 carbon atoms optionally together with a linear polyester resin (B); and the storage modulus at 150oC [G'150] of the resin (A) is 20000 dyn/cm2 or more and the ratio of [G'150] to the storage modulus at 180oC [G'180] thereof, i.e., [G'150]/ [G'180], is 15 or less.

Inventors:
MINAKI MASASHI (JP)
MAEDA SHINICHI (JP)
KAMURA MITSUMASA (JP)
SHINOHARA SHUICHI (JP)
IWAGOE YUYA (JP)
Application Number:
PCT/JP2010/055854
Publication Date:
October 07, 2010
Filing Date:
March 31, 2010
Export Citation:
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Assignee:
SANYO CHEMICAL IND LTD (JP)
MINAKI MASASHI (JP)
MAEDA SHINICHI (JP)
KAMURA MITSUMASA (JP)
SHINOHARA SHUICHI (JP)
IWAGOE YUYA (JP)
International Classes:
G03G9/087; G03G9/08; G03G9/097
Foreign References:
JP2006154686A2006-06-15
JP2007238954A2007-09-20
JP2000075549A2000-03-14
JP2006243715A2006-09-14
JP2007011307A2007-01-18
Other References:
See also references of EP 2416219A4
Attorney, Agent or Firm:
FURUTANI, Shinya (JP)
Shin-ya Furuya (JP)
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