Inorganic particles with improved flowability

    公开(公告)号:AU2014399611A1

    公开(公告)日:2017-02-02

    申请号:AU2014399611

    申请日:2014-07-04

    Abstract: It provides spray-dried powders comprising from 0.1% to 25% a hydrophobic polymer, from 75% to 99.9% inorganic particles, and less than 3% a dispersant. The Tg of the hydrophobic polymer is less than 105℃, the average particle size of the inorganic particles is from 5nm to 100um, and the average particle size of the spray-dried powders is from 1um to 400um. The hydrophobic polymer comprises, as polymerization units, an ethylenically unsaturated nonionic monomer. It further provides a process for the preparation of the spray-dried powders comprising (a) preparing a solution comprising the hydrophobic polymer, the inorganic particles, and the dispersant; and (b) adding the solution into a spray dryer and preparing the spray-dried powders.

    INORGANIC PARTICLES WITH IMPROVED FLOWABILITY

    公开(公告)号:CA2953665A1

    公开(公告)日:2016-01-07

    申请号:CA2953665

    申请日:2014-07-04

    Abstract: It provides spray-dried powders comprising from 0.1% to 25% a hydrophobic polymer, from 75% to 99.9% inorganic particles, and less than 3% a dispersant. The Tg of the hydrophobic polymer is less than 105?, the average particle size of the inorganic particles is from 5nm to 100um, and the average particle size of the spray-dried powders is from 1um to 400um. The hydrophobic polymer comprises, as polymerization units, an ethylenically unsaturated nonionic monomer. It further provides a process for the preparation of the spray-dried powders comprising (a) preparing a solution comprising the hydrophobic polymer, the inorganic particles, and the dispersant; and (b) adding the solution into a spray dryer and preparing the spray-dried powders.

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