Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1995-12-26
1998-12-15
Jagannathan, Vasu
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524503, 524524, 260DIG38, 106 3113, 106 3134, C09D 1100
Patent
active
058498141
ABSTRACT:
An ink composition according to the present invention comprises a pigment, a pigment dispersion resin, an non-aqueous ambient temperature non-volatile liquid removal agent and an non-aqueous ambient temperature volatile organic solvent, wherein the amount of the pigment dispersion resin relative to that of the pigment is within the range of from about 2 to about 10%. Methods of making the ink composition and methods of applying the ink composition to a writing board also are disclosed. The ink composition is superior in time-erasion performance independent of the object and/or surface of the writing board.
REFERENCES:
patent: 4256494 (1981-03-01), Yamamoto et al.
Guarriello John J.
Jagannathan Vasu
Sakura Color Products Corporation
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