Acrylate comb dispersant and preparation method and application thereof, and organic pigment ink-jet color paste
A technology of acrylate and dispersant, applied in the direction of pigment slurry, application, ink, etc., can solve the problems of nozzle blockage, difficulty in meeting inkjet color paste, and inability to improve the adhesion of color paste
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[0047] The present invention also provides the preparation method of the acrylate comb dispersant of the above scheme, including the following steps:
[0048] (1) Reaction the methacrylate, hydrophilic monomer, chain transfer agent, the second solvent, and the second starter, to obtain the reaction liquid;
[0049] (2) Reaction the reaction liquid and a sealing agent to obtain a hydrophilic oligomer;
[0050] (3) A aromatic base hydrogen-based acrylate monomer, a fat-based thoughthal acrylate monomer, a first solvent, a hydrophilic oligomer, and a first starter were reacted to obtain an acrylate comb dispersant.
[0051] The present invention reacts the methacrylate, hydrophilic monomer, chain transfer agent, the second solvent, and the second starter to obtain the reaction liquid. In the present invention, the temperature of the reaction in the step (1) is preferably 5 to 10 ° C below the second solvent; the reaction time is preferably from 100 to 150 min, more preferably 120 min...
Embodiment 1
[0076] (1) Dry clean and clean four flasks of stirring and condensed refluxing devices, first into nitrogen 10min, then 50 g of buthalic, 100 g, methacrylate (GMA) 40g, 60g, Ten Dienkyl alcohol 5g, poured into the four flask and stirred and heated, and the temperature was controlled at 72 ° C.
[0077] (2) 3 g of azo diisobutyronitrile was mixed with 40 g of 酮, slowly added to the four flasks, and the addition of 90 min was added, and the temperature was maintained at 72 ° C, and the stirring was continued at 72 ° C for 120 min.
[0078] (3) A mixture of tert-butyl oxidation (2-ethyl acetate) tert-butyl ester and ketone 60g were stirred, and the excessive drop-added manner was added to the four flask, the addition time was 60 min, and the temperature was maintained at 72 ° C, and the temperature was added. The reaction was continued at 72 ° C for 60 min to give a hydrophilic oligomer 350g.
[0079] (4) In the dry clean and clean four-mouth flask of stirring and condensate reflux, ...
Embodiment 2
[0084] (1) In the dry clean and clean four-mouth flask of stirring and condensed refluxing devices, 10 min is 10 min, sequentially istopropyl alcohol 50g, ethanol 100g, methacrylate (GMA) 50g, methacrylic acid Hydroxyethyl ester 50g, di-sulfide (CPDB) 5 g, poured into four flasks and stirred and heated, and the temperature was controlled at 75 ° C.
[0085] (2) 3 g of azo diioheneparonol and 40 g of butharide were stirred, and the four-sized flask was added, and the time was 90 min, and the temperature was maintained at 75 ° C. After completion, the reaction was continued at 75 ° C for 120 min. .
[0086] (3) Hexamethylene diisocyanate 7g and butanone 60g were stirred mixed, and the four flask was added to the four flasks, and the time was 60 min, and the temperature was maintained at 75 ° C, and the mixture was stirred at 75 ° C for 60 min. Acceptor oligomer 350g.
[0087] (4) In the dry clean four-mouth flask of stirring and condensed refluxing devices, 10 min is 10 min, and the...
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