Abstract: Sterically hindered alkoxyamine and hydroxy substituted alkoxyamine stabilizer compounds are made water compatible via certain backbones with affinity towards water. The sterically hindered amines are for example of the formula where for example E and E? are 2-hydroxycyclohexyloxy, 2-hydroxy-2-methylpropoxy, benzyloxy, methoxy, propoxy, hexyloxy, heptyloxy, octyloxy or cyclohexyloxy, Rx is for example —NH2+CH2CH2OH Cl?, —NH3+?OAc, ?NOH, —NHCH(CH3)COO?K+, —NHCH2CH2N(CH3)2+?OAc, —NHCH2CH2SO3?K+, —NHCH(COO?K+)CH2CH2SCH3, —NHCH2COO?K+, —OCH(CH3)COO?K+, —OCH2CH2N(CH3)2+?OAc, —OCH2CH2SO3?K+, —OCH(COO?K+)CH2CH2SCH3 or —OCH2COO31K+, and where R5 comprises repeating units of —(OCH2CH2)—, —(OCH2CH2(CH3))—, —(CH2CHCOOH)—, —(CH2C(CH3)COOH)—, —(CH2CHCOOCH3)—, —(NHCH2CH2)—, —(CH2CHOH)—, —(CH2CHCONH2)— or —(CH2CH(NHCOH))—. These compounds are particularly effective in stabilizing aqueous polymer systems against the deleterious effects of oxidative, thermal and actinic radiation.

Abstract: 2H-Benzotriazole UV absorbers substituted at the 3-position and/or the 5-position of the phenyl ring by a phenyl moiety which is substituted by a heteroatom are particularly photostable in automotive coatings, and are of low color and exhibit low volatility in thermoplastic compositions.

Abstract: 2H-Benzotriazole UV absorbers substituted at the 3-position and/or the 5-position of the phenyl ring by a phenyl moiety which is substituted by a heteroatom are particularly photostable in automotive coatings, and are of low color and exhibit low volatility in thermoplastic compositions.