Process for manufacturing organosilicon synthetic resin from alk

Details Process for manufacturing organosilicon synthetic resin from alk Process for manufacturing organosilicon synthetic resin from alk

1977-10-19

1979-09-18

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 74, 260 9, 260124R, C08L 9700

Patent

active

041682521

ABSTRACT:
A method for producing organosilicon oils and resins from alkali pulp black liquors wherein the black liquor is first mixed with a substance having an acidity stronger than silicic acid and then the mixture is heated and concentrated precipitate convert any silicate therein to silicic acid but in a manner to avoid the precipitation of any alkali lignin salts. If the black liquor does not originally contain sufficient amounts of silicates. silicates from an external source may be added. This mixture is then reacted by heating to produce organosilicon resins. The resins and oils thus produced are useful as insulators and heat resistant materials.

REFERENCES:
patent: 2849314 (1958-08-01), Goss
patent: 3677884 (1972-07-01), Bornstein
patent: 3865616 (1975-02-01), Akerblom
patent: 3940352 (1976-02-01), Wennerblom
Chem. Absts., vol. 65:17195c.

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