DEPOSITED SILICON DIOXIDE (VERSIONS) AND METHOD OF PREPARATION THEREOF Russian patent published in 1997 - IPC

Abstract RU 2087417 C1

FIELD: production of polymer fillers. SUBSTANCE: invention relates to silicon dioxides in the form of powders, practically spheres or granules, with specific area between 100 and 140 sq.m/g, small average diameter after ultrasonation disagglomeration, and possibly such pore distribution that pore volume composed with 175- 275 A pores constitutes less than 50% of pore volume composed with pores having diameters below or equal to 400 A. method of preparing such silicon dioxides is also provided, the products being used as reinforcing fillers for elastomers. EFFECT: improved quality of silicon oxide products. 23 cl, 3 tbl

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RU 2 087 417 C1

Authors

Ivonnikk Sheval'E[Fr]

Ehvelin Prat[Fr]

Dates

1997-08-20Published

1994-09-29Filed