Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1998-04-28
2000-08-08
Mullis, Jeffrey
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
525309, 525310, 5253293, 525942, 524439, C03G 9107
Patent
active
061000019
ABSTRACT:
A nitrile resin for a carrier resulting from graft-copolymerization of 100 parts by weight of a monomer mixture containing unsaturated nitrile and alkyl acrylate in the presence of 1 to 30 parts by weight of a rubber-like polymer containing 50% by weight or more of conjugated diene units. The nitrile resin comprises having a glass transition temperature of 50 to 69.degree. C., having a matrix component except rubber ingredient containing 45 to 80% by weight of unsaturated nitrile units and 20 to 55% by weight of alkyl acrylate units and having a weight average molecular weight of 30,000 to 150,000. The invention further relates to a preparation process of nitrile resin and an electrophotographic carrier containing the nitrile resin. The nitrile resin for a carrier of the invention has an excellent processing ability in the carrier preparation step and good balance of electrostatic charge stability of the carrier. Consequently, the resin is highly suitable for use in the electrophotographic carrier.
REFERENCES:
patent: 3846509 (1974-11-01), Saluti
Asai Shinichi
Kaneko Masahiro
Kawata Mitsuo
Kuroda Kyoji
Narisawa Hiroaki
Mitsui Chemicals Inc.
Mullis Jeffrey
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