作者: Gary Lee Burroway , Gordon Edward Hardy
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摘要: This invention is based upon the discovery that characteristics of toner resins made by emulsion polymerization can be improved utilizing diacid cycloaliphatic emulsifiers in synthesis thereof. Toner which are such do not exhibit significant electrical charge effects from residual level soap resin compared to using standard soaps; as, rosin acid soaps and fatty soaps. They also generally contain a lower ash since salts need used their coagulation. As result low ash, exhibits excellent resistance moisture sensitivity adsorption. feature gives toners these better stability conventional adsorbed known neutralize charges. Solid liquid greatly adhesion paper. more specifically discloses process for preparing polymer particularly useful as resin, comprises (1) copolymerizing vinyl aromatic monomer second selected group consisting conjugated diene monomers an acrylate alkyl methacrylate presence emulsifier produce (2) recovering aqueous emulsion.