Toner production method and polymer
First Claim
1. A toner production method comprising:
- a melt-kneading step of melt-kneading a resin composition including a binder resin, a colorant, a wax, and a wax dispersant to obtain a melt-kneaded product; and
a pulverizing step of pulverizing the melt-kneaded product, wherein−
18≤
[Tk−
Tm]≤
10 where a temperature of the melt-kneaded product at an end of the melt-kneading step is Tk (°
C.), and a softening point of the wax dispersant is Tm (°
C.),the wax dispersant is a polymer in which a styrene acrylic polymer is grafted to a polyolefin,the styrene acrylic polymer has a monomer unit derived from α
-methylstyrene and a monomer unit derived from a cycloalkyl (meth)acrylate,the monomer unit derived from the cycloalkyl (meth)acrylate is represented by formula (2)
1 Assignment
0 Petitions
Accused Products
Abstract
A toner production method including: a melt-kneading step of melt-kneading a resin composition including a binder resin, a colorant, a wax, and a wax dispersant to obtain a melt-kneaded product; and a pulverizing step of pulverizing the melt-kneaded product. Where the temperature of the melt-kneaded product at the end of the melt-kneading step is Tk (° C.), and the softening point of the wax dispersant is Tm (° C.), the relationship of −18≤[Tk−Tm]≤10 is satisfied. The wax dispersant is a polymer in which a styrene acrylic polymer is graft-polymerized to a polyolefin. The styrene acrylic polymer has a monomer unit derived from α-methylstyrene and a monomer unit derived from a cycloalkyl (meth)acrylate.
-
Citations
7 Claims
-
1. A toner production method comprising:
-
a melt-kneading step of melt-kneading a resin composition including a binder resin, a colorant, a wax, and a wax dispersant to obtain a melt-kneaded product; and a pulverizing step of pulverizing the melt-kneaded product, wherein −
18≤
[Tk−
Tm]≤
10 where a temperature of the melt-kneaded product at an end of the melt-kneading step is Tk (°
C.), and a softening point of the wax dispersant is Tm (°
C.),the wax dispersant is a polymer in which a styrene acrylic polymer is grafted to a polyolefin, the styrene acrylic polymer has a monomer unit derived from α
-methylstyrene and a monomer unit derived from a cycloalkyl (meth)acrylate,the monomer unit derived from the cycloalkyl (meth)acrylate is represented by formula (2) - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification