Hydrophobic inorganic fine particles, hydrophobic inorganic...

Details Hydrophobic inorganic fine particles, hydrophobic inorganic... Hydrophobic inorganic fine particles, hydrophobic inorganic...

2007-07-03

2007-07-03

Goodrow, John L (Department: 1756)

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

C428S405000, C430S108300, C106S490000

Reexamination Certificate

active

10853144

ABSTRACT:
Hydrophobic inorganic fine particles characterized by being a mixture of at least small-particle-diameter inorganic fine particles having an average primary particle diameter of 5 to 25 nm and having a maximum peak particle diameter of 20 nm or less and large-particle-diameter inorganic fine particles having an average primary particle diameter which is 1.5 to 100 times the average primary particle diameter of the small-particle-diameter inorganic fine particles; the mixture being a mixture having been treated in the same treating tank to subject both the small-particle-diameter inorganic fine particles and large-particle-diameter inorganic fine particles simultaneously to hydrophobic treatment.

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