Method for preparing epoxy-modified silicon resins

Details Method for preparing epoxy-modified silicon resins Method for preparing epoxy-modified silicon resins

1975-08-22

1979-02-27

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

528 17, 528 14, 528 27, 528 26, 528 32, C08L 6302, C08L 6304, C08L 6300, C08G 5968

Patent

active

041419260

ABSTRACT:
An improved method for preparing epoxy-modified silicone resins is proposed in which the reaction catalyst is an alkali halide, such as sodium chloride and potassium chloride, or a combination of the alkali halide and an alkyl titanate, such as tetraisopropyl titanate and tetrabutyl titanate. The epoxy-modified silicon resin thus obtained is further reacted with a polybasic carboxylic acid or its anhydride. Varnishes containing these modified silicone resins can give coating films with very strong resistance to chemicals and solvents. Furthermore paints prepared with these varnishes as the vehicle are very stable, and exhibit no thixotropy even after a very long period of storage.

REFERENCES:
patent: 3055858 (1962-09-01), Frye et al.
patent: 3170962 (1965-02-01), Tyler
patent: 3294865 (1966-12-01), Price
patent: 3779988 (1973-12-01), Rembold et al.
patent: 3899456 (1975-08-01), Sieckhaus et al.

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