Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-03-29
2011-03-29
Jagannathan, Vasu (Department: 1764)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S161000, C524S407000, C524S277000
Reexamination Certificate
active
07915326
ABSTRACT:
A printing ink composition that not only exerts an excellent anti-blocking effect but also is free from any hickey phenomenon, resolving the problems of form plate stain, blanket stain, etc. There are provided a printing ink composition wherein there are dispersed composite particles having a volume-average particle diameter of 2 to 8 μm in which the volume content of solid polymer particles having a particle diameter of larger than 10 μm is not larger than 5 vol. % or less. Each of the composite particles (A) comprises a solid polymer particle (B), such as wax, insoluble in the printing ink, and inorganic microparticles (C) mainly adhered to the periphery of the solid polymer particle (B) and having an average particle diameter of 5 to 1000 nm.
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“Japanese Industrial Standard Petroleum waxes JIS K 2235” Translated and Published by Japanese Standards Association, pp. 1-26, 1991.
Murata Shozo
Oguchi Toshihiko
Jagannathan Vasu
Lee Doris L
Morimura Chemicals Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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