Abstract: Weatherable polycarbonate compositions (formulations or blends) comprise polycarbonate, cycloaliphatic polyester resins, at least one of a benzotriazole, benzophenone, and triazine based UVA, and a catalyst quencher. The incorporation of the cycloaliphatic polyester resin and the benzotriazole, benzophenone, and triazine based UVA exhibits a synergistic effect, thereby resulting in unexpected enhanced protection of the polycarbonate compositions by imparting photostability to the polycarbonate formulations, thereby reducing yellowing or other forms of light induced degradation.

Abstract: A method is provided for making curable silicon containing acrylate silicone hardcoat compositions which employ an anaerobic gelation inhibitor such as galvinoxyl. Devolatilizing of an aqueous/organic solvent mixture from the silicon containing acrylate hardcoat formulation is conducted in an inert atmosphere. Acrylate hardcoat compositions imparting improved weathering resistance to thermoplastic substrates also are provided.

Abstract: There is provided a method and a composite made therefrom of an organic substrate, such as a polycarbonate and a radiation cured silicon containing polyacrylate hardcoat. Improved weathering resistance results when an anaerobic gelation inhibitor such as galvinoxyl is used during the processing of the hardcoat.

Abstract: A filter for the lubricating oil and refrigerant within refrigerators, freezers and heat pumps is provided which does not interfere with the cooling cycle. The filter utilizes a housing with an orifice that functions as an outlet and an inlet for the transfer of fluids. The filter withdrawn fluids from a location between the compressor and the condenser when the compressor cycles on and returns the fluids when the compressor cycles off. Preferred embodiments of this invention provide for the release of additives to the fluids from the filter material. Also provided by the invention are vapor compression cycle devices which incorporate such a filter and a method of filtering said fluids.

Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to steriliizing radiation.

Abstract: Compounds having defined functional groups are described which color stablize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: An improved method for forming a protective coating on a plastic substrate is disclosed, comprising the application of a curable coating composition which contains at least one alkyltrialkoxysilane in a water/organic solvent dispersion of the colloidal silica onto the substrate, and then curing the composition at elevated temperatures with an effective amount of a tetrabutylammonium carboxylate catalyst such as tetra-n-butylammonium acetate. This invention also includes improved curable silicone coating compositions containing such a catalyst.

Abstract: Compounds having defined thioether groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds having defined alkene functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Coated article has a thermoplastic substrate and a surface coating of a transparent ultraviolet light-resistant polymer which is the reaction product of a melamine compound, a polyol, and a multimeric benzotriazole compound. The coating of the coated article retains its UV absorbance during curing and exposure to elevated temperatures.

Abstract: Compounds having defined nitrogen containing functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds havign defined ketone functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds having defined sulfone functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Pyran-derived compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Compounds having defined unsaturated alicyclic groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: Novel coating compositions contain a radiation polymerizable acrylic monomer or oligomer and an ultraviolight-light absorbing effective amount of a UV-absorbing multimeric benzotriazole compound.

Abstract: An improved method for forming a protective coating on a plastic substrate is disclosed, comprising the application of a curable coating composition which contains at least one alkyltrialkoxysilane in a water/organic solvent dispersion of the colloidal silica onto the substrate, and then curing the composition at elevated temperatures with an effective amount of a tetrabutylammonium carboxylate catalyst such as tetra-n-butylammonium acetate. This invention also includes improved curable silicone coating compositions containing such a catalyst.