Patent
Hydrophobic precipitated silicone dioxide with high whiteness and super-low hydroscopicity
TLDR
In this article, a method for the production of waterproof precipitated silica (I) involves (a) making a mixture of an organopolysiloxane derivative (II) and precipitated Silica (III), conditioning the mixture at 10-150 degrees C for 0.5-72 hours and (c) oxidative tempering at above 300 degrees C with an oxidizing gas.Abstract:
A method for the production of waterproof precipitated silica (I) involves (a) making a mixture of an organopolysiloxane derivative (II) and precipitated silica (III), (b) conditioning the mixture at 10-150 degrees C for 0.5-72 hours and (c) oxidative tempering at above 300 degrees C with an oxidizing gas.read more
Citations
More filters
Patent
Method for producing antifoam compositions
TL;DR: In this article, a defoamer composition is prepared by admixing an organopolysiloxanes, a hydrophilic silica, an hydrophobic silica and a water insoluble inorganic compound at a temperature of 50° C to 250° C. until the viscosity of the composition has decreased to at least half its original viscosities prior to heating.
Patent
Process for the preparation of a mineral filler product
TL;DR: In this article, a process for the preparation of a mineral filler product is described, the process comprising a step of dry grinding a calcium carbonate-containing material in a mixture obtained by contacting the calcine containing material with at least one grinding agent selected from specific styrene-maleic anhydride co-polymers and/or specific derivatives of styrene maleic a-anhydride polymers.
Patent
Hydrophobic treatment method of gas phase white carbon black
TL;DR: In this article, a hydrophobic treatment method of gas phase white carbon black is described. But the method is not suitable for high vacuum ammonia removal, and it requires the removal of a part of surface hydroxy groups.