摘要:
A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which is soluble in tetrahydrofuran. The binder resin can provide a toner, which is superior in low-temperature fixation and offset resistance and can be used in high speed printing in response to the recent market demands owing to its specific structure.
摘要:
A polyester binder resin for a toner that excels in low-temperature fixing properties, offset resistance, development durability, long-term storability, electrification properties, pulverizability, etc.; and a toner containing the same. The binder resin for a toner is comprised of a polyester resin and, dispersed therein, a wax having a substituent selected from among a substituent of aromatic structure (representative example thereof is a group derived from a styrene compound), a carboxyl group and a hydroxyl group, or comprised of a polyester resin having the above wax introduced in the structure thereof. The toner containing the above binder resin for toner exhibits excellent capability in not only, as fundamental performance of toner, low-temperature fixing properties and offset resistance but also development durability, antiblocking properties and pulverizability.
摘要:
A polyester binder resin for a toner that excels in low-temperature fixing properties, offset resistance, development durability, long-term storability, electrification properties, pulverizability, etc.; and a toner containing the same. The binder resin for a toner is comprised of a polyester resin and, dispersed therein, a wax having a substituent selected from among a substituent of aromatic structure (representative example thereof is a group derived from a styrene compound), a carboxyl group and a hydroxyl group, or comprised of a polyester resin having the above wax introduced in the structure thereof. The toner containing the above binder resin for toner exhibits excellent capability in not only, as fundamental performance of toner, low-temperature fixing properties and offset resistance but also development durability, antiblocking properties and pulverizability.
摘要:
Disclosed is a resin composition for toners, which contains a resin (D) obtained by reacting a styrene polymer (A) containing an active hydrogen group and having a peak molecular weight (Mp) of not less than 30,000 but not more than 2,000,000, a styrene polymer (B) containing a carboxyl group and having a peak molecular weight (Mp) of not less than 2,000 but not more than 20,000, and a crosslinkable compound (C) having an isocyanate group.
摘要:
Disclosed is a resin composition for toners, which contains a resin (D) obtained by reacting a styrene polymer (A) containing an active hydrogen group and having a peak molecular weight (Mp) of not less than 30,000 but not more than 2,000,000, a styrene polymer (B) containing a carboxyl group and having a peak molecular weight (Mp) of not less than 2,000 but not more than 20,000, and a crosslinkable compound (C) having an isocyanate group.
摘要:
The present invention relates to a toner composition for electrophotography, used for development of electrostatic image in electrophotography, electrostatic printing, etc., as well as to a process for producing such a toner composition. The toner composition of the present invention comprises a binder resin component [component (A)] and a coloring agent component [component (B)], wherein the binder resin component [component (A)] comprises a particular crosslinked aromatic polyester resin component [component (a-1)] and a particular linear aromatic polyester resin component [component (a-2)] and the proportions of the component (a-1) and the component (a-2) are 5 to 80% by weight [the component (a-1)] and 20 to 95% by weight [the component (a-2)] based on the total weight of the two components. The present invention can provide a toner composition for electrophotography, which is superior in grindability, wax dispersibility and mechanical durability, superior in blocking resistance and offset resistance, and superior in balance between fixing properties after development and development durability.
摘要:
Provided is a vehicle-mounted temperature control device capable of effectively discharging the exhaust air, which is generated during the driving of a temperature control unit which blows off cooled or warmed air, to the outside of a vehicle. A temperature control unit (1) which blows off the air temperature-controlled by a cooling or warming action is attached to the inside (2) of a vehicle, and an exhaust port (33) is provided at the wall (2a) of a vehicle body to discharge the exhaust air generated during the driving of the temperature control unit to the outside of the vehicle.
摘要:
Urethane modified polyester resin which has a total acid value not greater than 10 KOH mg/g and has been obtained by kneading, in a molten state, a base polyester resin (A) having an acid value of 5 to 20 KOH mg/g and a hydroxyl value of 40 to 70 KOH mg/g, a low-molecular-weight polyester resin (B) having an acid value not greater than 5 KOH mg/g, a hydroxyl value not greater than 10 KOH mg/g and a weight-average molecular weight of 3,000 to 5,000 and a polyisocyanate compound, by using the components (A) and (B) at a weight ratio of 3 to 5:7 to 5 and the polyisocyanate compound in an amount of 0.2 to 1.2 equivalent, in terms of an isocyanate group per equivalent, of the total hydroxyl groups of all the resins. This novel urethane-modified polyester resin (C) is used as a binder resin for the toner. For the preparation of the toner, the resin is mixed and kneaded with a colorant, magnetic powders, charge control agent and the like under a molten state, followed by cooling and pulverization.
摘要:
Urethane-modified polyester resin which has a total acid value not greater than 10 KOH mg/g and is obtained by kneading, in a molten state, a base polyester resin (A) having an acid value of 5 to 20 KOH mg/g and a hydroxyl value of 40 to 70 KOH mg/g, a low-molecular-weight polyester resin (B) having an acid value not greater than 5 KOH mg/g, a hydroxyl value not greater than 10 KOH mg/g and a weight-average molecular weight of 3,000 to 5,000 and a polyisocyanate compound, wherein components (A) and (B) are at a weight ratio of 3 to 5:7 to 5 and the polyisocyanate compound is in an amount of 0.2 to 1.2 equivalent, in terms of an isocyanate group per equivalent, of the total hydroxyl groups of all the resins.
摘要:
Provided is temperature-controlled air circulation type bedding which introduces the blowoff air generated by temperature control unit into an air flow passage provided around a bedding body so as to cool or warm the body of a person in the bedding, controls the blowoff air temperature to form a comfortable sleeping environment irrespective of an external atmosphere temperature, suppresses discharge of carbon dioxide gas, etc. with a compact configuration, and has low power consumption. The temperature-controlled air circulation type bedding includes a temperature control unit 2 which controls the blowoff air temperature by a cooling or heating action, and a bedding body 3 which provides an air flow passage 27 which allows the blowoff air from the temperature control unit to be introduced and circulated therethrough, and cools or warms the inside thereof. The temperature of air which circulates through the bedding is detected so that the temperature of the blowoff air is controlled by the temperature control unit.