Method for the preparation of silicone resins

Details Method for the preparation of silicone resins Method for the preparation of silicone resins

1995-02-17

1996-06-18

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

525478, 528 31, 528 39, C08G 7706

Patent

active

055278736

ABSTRACT:
The present invention relates to a method for the preparation of silicone resins, the method comprising the steps of (I) mixing (a) a silicone resin, (b) an organic solvent, and (c) an acid catalyst to form a reaction product, and (II) reacting a diorganopolysiloxane or tetraorganodisiloxane with the reaction product of (I) at a temperature of 50.degree. C. to 150.degree. C. The present invention also relates to resins produced by the method of the present invention.

REFERENCES:
patent: 2676182 (1954-04-01), Daudt et al.
patent: 2814601 (1957-11-01), Currie et al.
patent: 2857356 (1958-10-01), Goodwin
patent: 4707531 (1987-11-01), Shirahata
patent: 5292586 (1994-03-01), Lin et al.
patent: 5344905 (1994-09-01), Morita

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