General Electric Company

Blair T Anthony

Daniel R Olson

Donald G Legrand

A process and composition for improving the ultraviolet radiation stability of articles made from resins subject to photo degradation by contacting the article at a selected temperature with a stabilizer composition comprising an ultraviolet radiation absorber and a hindered amine light stabilizer in a nonagressive liquid carrier.

Ultraviolet radiation stabilized polymer compositions

A method is provided for making certain methoxy-substituted silyl benzophenones useful as ultraviolet light absorbing agents for silicone hardcoat formulations. The methoxy-substituted benzophenones have been found to more readily equilibrate into silicone hardcoat formulations without adversely affecting the shelf-life of the resulting formulation. The ultraviolet light absorbing agents are obtained by equilibrating a mixture of methanol and trialkoxysilyl-substituted benzophenone in the presence of an acid catalyst. The resulting UV stabilized silicon hardcoat formulations also provide silicone hardcoated plastic articles having improved thermoformability, resistance to abrasion, and environmental degradation.

Ultraviolet light absorbing agents, method for making, compositions, and

A method of upgrading silicon resin coating compositions is provided wherein the coating compositions are filtered prior to application on a substrate. The filters utilized are 5 microns or less.

Upgrading silicone resin coating compositions

Ultraviolet light absorbing agents, method for making, compositions and

Polycarbonate resins, can be stabilized against the adverse influence of UV light by incorporating either directly into the resin or by means of a coating on the surface of the resin, an effective amount of a certain class of cyano stabilizers.

Polycarbonate resins stabilized with nitriles containing a 2-OH

Polycarbonate resins can be stabilized against the adverse influence of UV light by incorporating either directly into the resin or by means of a coating on the surface of the polycarbonate resin, an effective amount of a dicyano stabilizer.

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Schenectady, NY, United States of America

Blair T Anthony