摘要:
An aliphatic polyester resin composition contains an aliphatic polyester resin and a cross-linking agent, wherein the proportion of the gel proportion of the aliphatic polyester resin composition is less than 5 percent, wherein the weight average molecular weight of the aliphatic polyester resin composition after the aliphatic polyester resin composition is melted at 200° C. for 10 minutes increases by 50,000 or greater compared to the weight average molecular weight of the aliphatic polyester resin composition before the aliphatic polyester resin composition is melted at 200° C. for 10 minutes.
摘要:
A toner is provided that contains a crystalline polyester resin comprising a polycondensed resin of a dicarboxylic acid represented by the following formula (1) with a diol represented by the following formula (2). A content of a cyclic ester represented by the following formula (3) in the toner, measured by a thermal extraction gas chromatographic mass spectrometry at a thermal extraction temperature of 160° C., is from 1 to 200 ppm in terms of toluene: where n represents an integer of from 2 to 12; where m represents an integer of from 2 to 12; and where n represents an integer of from 2 to 12, m represents an integer of from 2 to 12, and m+n≥6 is satisfied.
摘要:
A composition includes a crystalline polymer and a compound that denatures at a temperature equal to or lower than a melting point of the crystalline polymer. The composition is substantially free from a solvent.
摘要:
A toner is provided. The toner comprises a binder resin, a colorant, and a release agent. The toner satisfies the following relations (1) and (2): 3.0×102≤G′(50)/G′(80) (1) T(107)≥75 degrees C. (2) where G′(50) represents a storage elastic modulus at 50 degrees C., G′(80) represents the storage elastic modulus at 80 degrees C., and T(107) represents a temperature at which the storage elastic modulus is 107 Pa or higher during a temperature fall from 100 degrees C. to 30 degrees C., in a measurement of dynamic viscoelasticity of the toner.
摘要:
An aliphatic polyester resin composition including: an aliphatic polyester resin; and calcium carbonate, wherein an amount of the calcium carbonate in the aliphatic polyester resin composition is 20% by mass or more, a number average particle diameter of the calcium carbonate in the aliphatic polyester resin composition is 0.20 μm or more but less than 0.40 μm, and a standard deviation of the number average particle diameter is 0.3 or more but 0.6 or less.
摘要:
To provide a toner, which contains a first binder resin, and a second binder resin, wherein the first binder resin is a block polymer containing at least a polyester skeleton A having, in a repeating structure thereof, a constitutional unit formed by dehydration condensation of hydroxycarboxylic acid, and a skeleton B that does not have, in a repeating structure thereof, a constitutional unit formed by dehydration condensation of hydroxycarboxylic acid, and the first binder resin has glass transition temperature Tg1 and Tg 2 as measured by differential scanning calorimetry at a heating rate of 5° C./min, wherein the Tg1 is −20° C. to 20° C., and the Tg2 is 35° C. to 65° C., and wherein the second binder resin is a crystalline resin.
摘要:
A resin for use in toner is provided. The resin comprises an oligomer segment and a soft segment. The oligomer segment comprises a polyhydroxycarboxylic skeleton and an aromatic diol skeleton.