Title:
ELECTROPHOTOGRAPHIC TONER BINDER, AND TONER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/110593
Kind Code:
A1
Abstract:
Provided is an electrophotographic toner binder which contains, as a main component, a polymer having, as a constituent monomer, a monomer having an ethylenically unsaturated bond, and has excellent low temperature fixability, hot-offset resistance, and storage stability. This electrophotographic toner binder contains a polymer (A) having, as essential constituent monomers, a monomer (a) and a monomer (x) other than the monomer (a), and is characterized in that the monomer (a) is (meth)acrylate having a C18-36 chain hydrocarbon group, the acid value of the polymer (A) is 40 or less, and the polymer (A) satisfies relational expression (1). Relational expression (1): 1.1(cal/cm3)0.5≤|SP(x)-SP(a)|≤8.0(cal/cm3)0.5 [in relational expression (1), SP(a) is an SP value of a constitutional unit derived from the monomer (a) constituting the polymer (A); and SP(x) is an SP value of a constitutional unit derived from the monomer (x) other than the monomer (a) constituting the polymer (A)].
Inventors:
KOSHIMA TAKUYA (JP)
Application Number:
PCT/JP2017/044691
Publication Date:
June 21, 2018
Filing Date:
December 13, 2017
Export Citation:
Assignee:
SANYO CHEMICAL IND LTD (JP)
International Classes:
G03G9/087; C08F220/68
Domestic Patent References:
| WO2009119055A1 | 2009-10-01 |
Foreign References:
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Other References:
ROBERT F. FEDORS ET AL., POLYMER ENGINEERING & SCIENCE, vol. 14, pages 151 - 154
See also references of EP 3557328A4
See also references of EP 3557328A4
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
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