Bis(alkyleneoxybenzophenone) ultraviolet light absorbers
AssigneeCytec Technology Corp.
InventorThomas Patrick Sassi
Life of this patent
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Abstract
The present invention relates to novel bisbenzophenones and the use thereof as an ultraviolet light absorber. The presently claimed compounds are particularly useful, either alone or in combination with other additives, including other ultraviolet light absorbers, antioxidants and stabilizers, in stabilizing polymers and other materials from degradation by environmental forces such as actinic radiation (ultraviolet light), oxidation, moisture, atmospheric pollutants and combinations thereof.
Claims74
A bisbenzophenone compound of the general formula I:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl, aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
A polymeric article comprising at least one polymeric material and a sufficient amount of a stabilizing composition to inhibit at least one of photo or thermal degradation, wherein the stabilizer composition comprises one or more compounds of general formula I:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl, aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
A multilayer polymeric article comprising a polymeric article having at least one surface and a thin film of polymer composition applied to the at least one surface that comprises a sufficient amount of at least one compound of general formula I to inhibit at least one of photo or thermal degradation, wherein formula I has the structure:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl, aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
A coating comprising a sufficient amount of at least one compound of general formula I to inhibit at least one of photo or thermal degradation, wherein formula I has the structure:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
A concentrate comprising a polymeric resin and from about 2.5 to about 25 percent of at least one compound of general formula I, wherein formula I has the structure:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl, aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
A cosmetic composition comprising a sufficient amount of at least one compound of general formula I, wherein formula I has the structure:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl, aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
A method of stabilizing a material that is subject to at least one of photo or thermal degradation by incorporating into or onto the material an amount of one or more stabilizer compositions in an amount effective to stabilize the material against at least one of photo or thermal degradation, wherein the stabilizer composition comprises one or more compounds of general formula I, wherein formula I has the structure:
- wherein
- each X, Y, Z, X′, Y′ and Z′ is independently selected from hydrogen, hydrocarbyl, functional hydrocarbyl, alkyl, aryl, aralkyl, alkaryl, alkoxyl, aroxyl, carboxyl, carboalkoxy, cyano, hydroxyl, halogen, or an S, N or P atom substituted for a carbon atom of the ring;
- each R and R′ is independently selected from hydrocarbylene or functional hydrocarbylene;
- and
- L is selected from a carbonyl group, a dicarbonyl group or hydrocarbylene.
Dependencies are inferred from the claim text.