| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a resin compsn. for producing a toner for fixation with a heating roll having a wide fixing temp. range and excellent in anti-offsetting property and blocking resistance and to obtain a toner using the resin compsn. SOLUTION: This resin compsn. contains a resin (A) made of a vinyl copolymer contg. low and high mol.wt. polymer components and a resin (B) made of a copolymer of a vinyl monomer having a glycidyl group or aβ- methylglycidyl group with other vinyl monomer as principal resin components. The max. value of the low mol.wt. polymer component in the mol.wt. distribution is in the range of 3×10<3> -5×10<4> , that of the high mol.wt. polymer component is in the range of 3×10<5> -5×10<6> and the acid value of the high mol.wt. polymer component is >=10KOHmg/g and is higher than that of the low mol.wt. polymer component. In the resin A, a vinyl monomer having an acid group has been copolymerized and at least one of this monomer and the monomer having a glycidyl group or aβ-methylglycidyl group has been block-copolymerized in the resin.</p> |
