Patent ID: 7482397

Claim:
A polymer composition comprising: (A) at least one polycarbonate; and (B) at least one salt prepared by the reaction of one or more acidic phosphorus-containing compounds with one or more hindered amine light stabilizers (HALS), wherein the HALS has the formula (15): wherein R 1 and R 2 are independently selected from hydrogen, C 1 -C 22 -alkyl, substituted C 1 -C 22 -alkyl, C 3 -C 8 -cycloalkyl, substituted C 3 -C 8 -cycloalkyl, heteroaryl, and aryl; L 2 , L 2 ′, and L 2 ″ are independently selected from C 1 -C 22 -alkylene, arylene, —(CH 2 CH 2 —Y 1 ) 1-3 —CH 2 CH 2 —, and C 3 -C 8 -cycloalkylene; Y 1 is selected from —OC(O)—, —NHC(O)—, —O—, —S—, and —N(R 1 )—; R 11 , R 11′ , R 12 , and R 12′ are independently selected from hydrogen, C 1 -C 22 -alkyl, substituted C 1 -C 22 -alkyl, C 3 -C 8 -cycloalkyl, substituted C 3 -C 8 -cycloalkyl, heteroaryl, aryl, and radical A; wherein radical A for R 11 , R 11′ , R 12 , and R 12′ is independently selected from the following structures: Radical A structures wherein * designates the position of attachment; wherein at least one of R 11 , R 11′ , R 12 , and R 12′ is a radical A; and wherein the ratio of the number of phosphorus atoms in the acidic phosphorus-containing compound to the number of basic nitrogen atoms in the HALS is about 0.25 to about 2.