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AssigneeCanon Kabushiki Kaisha
InventorsTakayuki Ishikawa, Akira Nagashima, Minako Kawabe, Sadayuki Sugama
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There is provided a method for producing pigment crystals with sufficiently high purity and sufficiently controlled crystal type, particle size, and aggregation property and dispersibility to obtain a pigment crystal that can be suitably used in both a solid phase and a liquid phase. The method for producing pigment crystals (S3) from a pigment precursor (S0) using retro Diels-Alder reaction, the method comprising producing the pigment crystals (S3) from the pigment precursor (S0) through a first displacement structure (S1) and a second displacement structure (S2), which differ from the pigment precursor (S0) and the pigment crystals (S3) and also differ from at least from each other.
An intermediate chemical substance used in a method for producing pigment crystals by transforming a molecular structure of a pigment precursor (S0) to obtain pigment crystals (S3), the intermediate chemical substance
A method for producing an intermediate chemical substance generated when a pigment precursor (S0) is transformed into pigment crystals (S3) through a molecular structure transformation, the intermediate chemical substance having a first displacement structure (S1) differing from the pigment precursor (S0) and the pigment crystals (S3), the method comprising the step of providing the pigment precursor (S0) with preparatory conditions to obtain the first displacement structure (S1) as an intermediate chemical substance.
A method for producing an intermediate chemical substance generated when a pigment precursor (S0) is transformed into pigment crystals (S3) through a molecular structure transformation, the intermediate chemical substance having a second displacement structure (S2) differing from the pigment precursor (S0) and the pigment crystals (S3), the method comprising the step of providing the pigment precursor (S0) with preparatory conditions to obtain the second displacement structure (S2) as an intermediate chemical substance.
A method for producing pigment crystals by transforming a molecular structure of a pigment precursor (S0) to obtain pigment crystals (S3), the method comprising using an intermediate chemical substance having a first displacement structure (S1), which differs from the pigment precursor (S0) and the pigment crystals (S3), in the molecular structure transformation.
A method for producing pigment crystals by transforming a molecular structure of a pigment precursor (S0) to obtain pigment crystal (S3), the method comprising using an intermediate chemical substance having a second displacement structure (S2), which differs from of the pigment precursor (S0) and the pigment crystals (S3), in the molecular structure transformation.
A method for producing pigment crystals by transforming a molecular structure of a pigment precursor (S0) to obtain pigment crystals (S3), the method comprising using an intermediate chemical substance generated in the molecular structure transformation having a first displacement structure (S1) and a second displacement structure (S2), which differ from pigment precursor (S0) and the pigment crystals (S3),
A method for producing pigment crystals by transforming a molecular structure of a pigment precursor (S0) to obtain pigment crystals (S3), the method comprising using an intermediate chemical substance generated in the molecular structure transformation having a first displacement structure (S1) and a second displacement structure (S2), which differ from the pigment precursor (S0) and the pigment crystals (S3),
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