Process for preparing organosilicon high condensation products

Details Process for preparing organosilicon high condensation products Process for preparing organosilicon high condensation products

1985-09-16

1986-08-12

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Silicon containing other than solely as silicon dioxide or...

10628716, C09K 300, C08G 7704

Patent

active

046054464

ABSTRACT:
A process for preparing an organosilicon high condensation product having no silanol group in the terminal of the molecule, the process comprising the steps of hydrolyzing a mixture of an organosilicon compound represented by the formula (A) ##STR1## wherein R represents a hydrocarbon group having 1 to 8 carbon atoms and/or a low condensation product thereof and an organosilicon compound represented by the formula (B) ##STR2## wherein R' represents a hydrocarbon group having 1 to 12 carbon atoms and R is as defined above and/or a low condensation product thereof in the presence of an acid catalyst, and adding an alkaline material to the reaction product to adjust its pH to more than 7, thereby causing condensation reaction.

REFERENCES:
patent: 2618570 (1952-11-01), Blackburn
patent: 2842445 (1958-07-01), Emblem
patent: 3232771 (1984-02-01), Pearce
patent: 3389114 (1968-06-01), Burzynski et al.
patent: 4308371 (1981-12-01), Tanaka et al.

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