Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...
Patent
1995-05-18
1996-08-20
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Metal-depositing composition or substrate-sensitizing...
106 23A, 106498, C09D 1102
Patent
active
055474993
ABSTRACT:
An aqueous ink composition is provided which includes an aqueous mixture containing at least a coloring agent, a pigment dispersant, a water-soluble organic solvent and water, and an organic white pigment of an alkylene-bis-melamine derivative represented by the general formula (1): ##STR1## wherein R represents a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms or an alicyclic group; R1, R2, R3 and R4 are the same or different, each representing a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms; R1 and R2, or R3 and R4 may form a heterocyclic group together with a nitrogen atom; and X represents a lower alkylene group having 2 to 3 carbon atoms. The aqueous ink composition is particularly useful for writing instruments of direct ink supply type and of wick type.
REFERENCES:
patent: 3838063 (1974-09-01), Foss
patent: 4222788 (1980-09-01), Liedek et al.
patent: 5122404 (1992-05-01), Sommer et al.
Kawasumi Toshimitsu
Ueda Hiroaki
Klemanski Helene
Sakura Color Products Corporation
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