Basf Se Corporation

Eva Peregi

Gerrit Knobloch

Petr Kvita

Frank Oliver Heinrich Pirrung

Pierre Rota-Graziosi

Benno Blickenstorfer

The present invention pertains to an additive combination comprising at least two sterically hindered amines, at least one further stabilizer, a dispersing agent and a plasticizer. The present invention also pertains to a composition comprising an organic material susceptible to degradation by light, oxygen and/or heat, and the additive combination and to the use and the process for stabilizing organic material against degradation by light, oxygen and/or heat by the additive combination.

Additive combination for sealants applications

The invention describes an improved method for the preparation of rubber compounds which comprises compounding the rubber and the components at 125-200&#xb0; C. in the presence of an amount of 0.1-2% based on the weight of the rubber of a processing stabilizer of the formula (I) wherein Ris hydrogen, C-Calkyl, styryl, &#x3b1;-methyl-styryl or &#x2014;CH&#x2014;S&#x2014;R; or C-Calkyl substituted with C-Calkenyl, C-Calkinyl, C-Ccycloalkyl, phenyl or tolyl; Ris C-Calkyl or &#x2014;CH&#x2014;S&#x2014;R, Ris C-Calkyl; with phenyl, hydroxyl, cyano, formyl, acetyl or &#x2014;O&#x2014;CO&#x2014;Rsubstituted C-Calkyl; C-Calkenyl, C-Calkinyl, C-Ccycloalkyl; or with hydroxyl, phenyl, 4-chloro-phenyl, 2-methoxycarbonylphenyl, p-tolyl, 1,3-benzthiazol-2-yl, &#x2014;(CHR)COORor &#x2014;(CHR)CONRRsubstituted C-Ccycloalkyl; Ris hydrogen or methyl, Ris hydrogen or C-Calkyl, Ris C-Calkyl; with oxygen or sulfur interrupted C-Calkyl; C-Ccycloalkyl, phenyl, benzyl or tolyl, Rand Rare independently of each other hydrogen or C-Calkyl, and n is 1 or 2. 

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Huningue, France

Eva Peregi