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Liquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H-benzotriazole mixtures, stabilized compositions and processes for preparing liquid mixtures

  • US 4,675,352 A
  • Filed: 11/20/1985
  • Issued: 06/23/1987
  • Est. Priority Date: 01/22/1985
  • Status: Expired due to Term
First Claim
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1. A normally liquid or non-crystalline mixture of benzotriazoles, suitable for stabilizing organic materials against light-induced deterioration, which consists essentially of compounds of the formula ##STR11## wherein T1 is hydrogen or chloro, andT2 is a random statistical mixture of at least three isomeric branched secondary alkyl groups each having 8 to 30 carbon atoms and having the formula ##STR12## where E1 is a straight-chain alkyl of 1 to 14 carbon atoms and E2 is a straight-chain alkyl of 4 to 15 carbon atoms where the total number of carbon atoms in E1 plus E2 is 7 to 29, which mixture is prepared by alkylating a a benzotriazole of the formula ##STR13## where T1 is hydrogen or chloro, with a straight chain alkene of 8 to 30 carbon atoms in the presence of an acidic catalyst at a temperature of 100°

  • to 200°

    C.

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