RESIN COMPOSITION FOR ELECTROPHOTOGRAPHIC TONER

RESIN COMPOSITION FOR ELECTROPHOTOGRAPHIC TONER

PURPOSE:To produce a toner having superior fixability, offset and blocking resistances by mixing two kinds of copolymerized styrene-acrylic monomer resins each having a prescribed mol.wt. and a prescribed glass transition temp. in a prescribed ratio and by using the resulting composition having a pr...

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Hauptverfasser: HOSHINO YUKIHISA, SASAKI NORIO, IWATOMO KEISUKE
Format: Patent
Sprache:eng
Schlagworte:
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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creator HOSHINO YUKIHISA
SASAKI NORIO
IWATOMO KEISUKE
description PURPOSE:To produce a toner having superior fixability, offset and blocking resistances by mixing two kinds of copolymerized styrene-acrylic monomer resins each having a prescribed mol.wt. and a prescribed glass transition temp. in a prescribed ratio and by using the resulting composition having a prescribed melt viscosity as a binder for an electrophotographic toner. CONSTITUTION:A copolymerized styrene-acrylic monomer resin A having 1X10 -3X10 weight average mol.wt. and 60-70 deg.C glass transition temp. is mixed with a copolymerized styrene-acrylic monomer resin B having 2X10 -4X10 weight average mol.wt. and 55-65 deg.C glass transition temp. in 90/10-50/50 weight ratio of A/B. The resulting resin composition having
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CONSTITUTION:A copolymerized styrene-acrylic monomer resin A having 1X10 -3X10 weight average mol.wt. and 60-70 deg.C glass transition temp. is mixed with a copolymerized styrene-acrylic monomer resin B having 2X10 -4X10 weight average mol.wt. and 55-65 deg.C glass transition temp. in 90/10-50/50 weight ratio of A/B. The resulting resin composition having &lt;=10 P melt viscosity at 140 deg.C is used as a binder for an electrophotographic toner. The main action of the resin A is to improve the fixability and that of the resin B is to improve the offset resistance. 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CONSTITUTION:A copolymerized styrene-acrylic monomer resin A having 1X10 -3X10 weight average mol.wt. and 60-70 deg.C glass transition temp. is mixed with a copolymerized styrene-acrylic monomer resin B having 2X10 -4X10 weight average mol.wt. and 55-65 deg.C glass transition temp. in 90/10-50/50 weight ratio of A/B. The resulting resin composition having &lt;=10 P melt viscosity at 140 deg.C is used as a binder for an electrophotographic toner. The main action of the resin A is to improve the fixability and that of the resin B is to improve the offset resistance. 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CONSTITUTION:A copolymerized styrene-acrylic monomer resin A having 1X10 -3X10 weight average mol.wt. and 60-70 deg.C glass transition temp. is mixed with a copolymerized styrene-acrylic monomer resin B having 2X10 -4X10 weight average mol.wt. and 55-65 deg.C glass transition temp. in 90/10-50/50 weight ratio of A/B. The resulting resin composition having &lt;=10 P melt viscosity at 140 deg.C is used as a binder for an electrophotographic toner. The main action of the resin A is to improve the fixability and that of the resin B is to improve the offset resistance. When the melt viscosity exceeds 10 P, the fixability is deteriorated.</abstract><oa>free_for_read</oa></addata></record>
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subjects CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
title RESIN COMPOSITION FOR ELECTROPHOTOGRAPHIC TONER
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