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专利名称：Microcapsule, microcapsule toner and
process for preparation thereof
发明人：Yoshihiro Inaba,Takeshi Mikami申请号：US07/887049申请日：19920526公开号：US05336581A公开日：19940809
摘要：A microcapsule comprising a capsule shell having at least one polymer
structure selected from the group consisting of a polyurea resin, a polyurethane resin, apolyamide resin, a polyester resin and an epoxy resin and containing a block and/or graftcopolymer formed by the vinyl polymerization of vinyl monomers initiated by thedecomposition of a polymerization-initiating azo group which has been previouslyincorporated in the polymer structure. A process for the preparation of a microcapsule,which comprises the steps of: (a) allowing a first capsule shell-forming monomer and asecond capsule shell-forming monomer, at least one of which contains a polymerization-initiating azo group, to undergo reaction in the inside and/or at the border of an oilydrop to form a capsule shell containing a polymerization-initiating azo group and havingat least one polymer structure selected from the group consisting of a polyurea resin, apolyurethane resin, a polyamide resin, a polyester resin and an epoxy resin, and then (b)allowing vinyl monomers to be vinyl-polymerized to said capsule shell. A microcapsuletoner which comprises the above microcapsule in which the vinyl monomers contain acharge controlling group. A process for the preparation of a microcapsule toner whichcomprises the above process for the preparation of a microcapsule in which the vinyl
monomers contain a charge controlling group.
申请人：FUJI XEROX CO., LTD.
代理机构：Oliff & Berridge
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