MANUFACTURE OF RESIN FOR TONER

PROBLEM TO BE SOLVED: To provide a manufacturing method of low molecular weight resin for toner in a short time by copolymerizing a styrene based vinyl monomer and an alkyl(meth)acrylate in an organic solvent using a specific peroxide as a polymerization initiator. SOLUTION: The copolymerization of...

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Bibliographic Details
Main Author ISHIGAKI HIDEYO
Format Patent
LanguageEnglish
Published 02.11.1999
Edition6
Subjects
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MAGNETOGRAPHY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PHOTOGRAPHY
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To provide a manufacturing method of low molecular weight resin for toner in a short time by copolymerizing a styrene based vinyl monomer and an alkyl(meth)acrylate in an organic solvent using a specific peroxide as a polymerization initiator. SOLUTION: The copolymerization of a styrene based monomer (e.g. styreme or α-methylstyrene or the like) and an alkyl(meth)acrylate (e.g. methylmethacrylate or n-butylacrylate or the like) is carried out in an organic solvent using a peroxide of the formula (R is a 1 to 5C alkyl; R is a 2 to 5C alkyl), [e.g. di(1,1-dimethyl-bytyl)peroxide, di-t-amyl peroxide or the like]. A prescribed peroxide is normally used in amount of 1 to 20 wt.% preferably, 2 to 10 wt.%. based on the sum of the monomers.
Bibliography:Application Number: JP19980113107