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Shigeyuki Ehashi, Junichi Tsuchida, Kenichi Kakimoto, Hiromitsu Katsura: Pigment compositions. Toyo Ink Manufacturing, Kenway & Jenney, January 12, 1982: US04310359 (38 worldwide citation)

A pigment composition is disclosed which includes a pigment and a coloring compound of the general formula (I), ##STR1## wherein Q represents a residue of a coloring compound other than phthalocyanine, X represents --SO.sub.2 -- or --CO--, m and n represent, respectively, an integer of from 1 to 4 a ...


2
Hiromitsu Katsura, Shigeyuki Ehashi, Junichi Tsuchida, Kenichi Kakimoto: Pigment compositions and use thereof. Toyo Ink Manufacturing, Kenway & Jenney, March 2, 1982: US04317682 (19 worldwide citation)

There is provided a pigment composition comprising 100 parts by weight of a pigment and from 0.3 to 30 parts by weight of a colorless or slightly colored aromatic compound having the following general formula (I) ##STR1## wherein Q represents a residue of an aromatic polycyclic compound which is joi ...


3
Hiromitsu Katsura, Shigeyuki Ehashi, Motohiko Kashioka, Makoto Sakamoto: Pigment composition. Toyo Ink Manufacturing, Bucknam and Archer, May 12, 1987: US04664714 (13 worldwide citation)

A pigment composition consisting of 100 parts by weight of a pigment, and from 0.1 to 30 parts by weight of a pigment dispersant of formula ##STR1## in which Q is (a) an anthraquinone dye or pigment radical, (b) an azo dye or pigment radical, (c) a benzimidazolone dye or pigment radical, (d) a phtha ...


4
Hiromitsu Katsura, Morihiko Endo, Takashi Kanno: Process for the production of colored polyolefin molded articles and colorants used therein. Toyo Ink Manufacturing, Jordan and Hamburg, November 11, 1980: US04233206 (13 worldwide citation)

A process for the production of a colored polyolefin molded articles comprising adding to a polyolefin either a compound of the formula D--CH.sub.2 O.OC--R]).sub.n as a colorant wherein D is the residue of a common organic pigment, R is an alkyl, alkenyl or aryl group having up to 20 carbon atoms an ...


5
Isao Kumano, Hiromitsu Katsura, Tuneo Tanaka, Takashi Kanno, Shigeru Suzuki: Process for the preparation of polyolefin moldings. Toyo Ink Manufacturing, Frank J Jordan, February 19, 1980: US04189423 (6 worldwide citation)

A process for producing a dimensionally stable polyolefin molding, characterized by using a specific compound or a mixture thereof with at least one ordinary pigment, the specific compound being obtained by reacting a halogenated phthalic compound with hydrazine or an organic diamine.


6
Masato Ohashi, Motohiko Kashioka, Shinichi Tamura, Hiromitsu Katsura, Hideaki Ueda, Akihiro Nakamura: Electrophotographic photoreceptor having photosensitive layer made of a phthalocyanine treated with an acrylic resin. Toyo Ink Mfg, Minolta Camera Kabushiki Kaisha, Watson Cole Grindle & Watson, October 21, 1986: US04618554 (5 worldwide citation)

An electrophotographic photoreceptor which has excellent electrophotographic characteristics even when exposed to high-temperature and high-humidity conditions is formed from a phthalocyanine which has been treated with an acrylic resin, the acrylic resin having been obtained by polymerization of no ...


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