Process for obtaining silane derivatives of sepiolite by reactio

Details Process for obtaining silane derivatives of sepiolite by reactio Process for obtaining silane derivatives of sepiolite by reactio

1980-03-24

1981-11-24

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556439, 556427, 556400, 26034812, 26034841, C07F 710, C07F 708, C07F 718

Patent

active

043025943

ABSTRACT:
The present invention relates to a process for obtaining dilane derivatives of sepiolite by reaction with alkoxy-silanes to improve their reinforcing capacity in polymers, the reaction being carried out by placing the finely divided sepiolite and the alkoxy-silane in close contact, either by vaporization of the latter by the action of heat or by the spraying thereof with nitrogen, the contact taking place in countercurrent in a column of suitable dimensions, the reaction temperature ranging between room temperature and the vaporization temperature of the alkoxy-silane, further characterized in that the silane derivative of the sepiolite is subsequently dried to 110.degree. C. to remove the reaction byproducts.

REFERENCES:
patent: 3839385 (1974-10-01), Meiller et al.
patent: 4164509 (1979-08-01), Laufer
patent: 4216024 (1980-08-01), Ivancheu et al.

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