C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/18 (2006.01) C07C 209/26 (2006.01) C08K 5/00 (2006.01) C08L 21/00 (2006.01)
Patent
CA 2405498
Liquid antiozonant mixtures obtained from the process comprising simultaneously reacting at least one unsubstituted and/or substituted paraphenylenediamine compound with a carbonyl compound mixture comprising acetone and at least one other carbonyl compound selected from the group consisting of ketones containing from 4 to about 12 carbon atoms, aldehydes containing from 1 to about 12 carbon atoms and mixtures thereof in the presence of a reductive alkylation catalyst is provided. Rubber compositions containing the liquid antiozonant mixtures is also provided.
L'invention concerne des mélanges d'anti-ozones liquides obtenus par un procédé consistant à faire réagir simultanément au moins un composé paraphénylènediamine non substitué et/ou substitué avec un mélange de composés carboxylés comprenant de l'acétone et au moins un autre composé carboxylé sélectionné dans le groupe renfermant des cétones comprenant entre 4 et environ 12 atomes de carbone, des aldéhydes comprenant entre 1 et environ 12 atomes de carbone et des mélanges de ceci en présence d'un catalyseur d'alkylation réducteur. L'invention concerne également des mélanges caoutchoutés renfermant les mélanges d'anti-ozones liquides.
Gencarelli Richard A.
Malz Russell E. Jr.
Reynolds Michael P.
Gowling Lafleur Henderson Llp
Uniroyal Chemical Company Inc.
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