Milled silicates and silicas used in ink jet printing

C - Chemistry – Metallurgy – 09 – C

Patent

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C09C 1/28 (2006.01) B41M 5/00 (2006.01) B41M 5/52 (2006.01) C09C 1/30 (2006.01) C09C 3/04 (2006.01)

Patent

CA 2240759

A method for preparing precipitated silicates and silicas having good high shear rheology in high solids aqueous slurries. Destructuring of aluminum silicate and silica via dry milling results in decreasing DBP oil absorption. The destructured materials are useful for ink jet coating formulations.

L'invention concerne un procédé pour préparer des silicates et des silices ayant une rhéologie bien adaptée dans des conditions de cisaillement élevé, lorsqu'ils forment des suspensions aqueuses à teneur élevée en matières solides. la destructuration du silicate d'aluminium et de la silice par broyage à sec provoque une diminution de l'absorption de l'huile dibutylphtalate. Ces produits destructurés sont utiles pour les formulations d'impression par jet d'encre.

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