C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/141 (2006.01) B01J 31/02 (2006.01)
Patent
CA 2761011
The invention is directed to various alkylaryl phosphite compositions that ideally are suitable for use as secondary antioxidants in polymers. In one aspect, the phosphite composition comprises a tris(monoalkylaryl)phosphite in an amount from 51 to 95 weight percent; and at least one of: a bis(monoalkylaryl)dialkylaryl phosphite; a bis(dialkylaryl)monoalkylaryl phosphite; and a tris(dialkylaryl) phosphite. The inventive phosphite composition is a solid at ambient conditions. The invention also relates to alkylate compositions and processes for forming such alkylate compositions and such phosphite compositions.
L'invention porte sur diverses compositions d'alkylaryl phosphites qui sont idéalement appropriées pour être utilisées comme anti-oxydants secondaires dans les polymères. Sous l'un de ses aspects, la composition de phosphites comprend un tris(monoalkylaryl)phosphite dans une quantité de 51 à 95 pour cent en poids ; et au moins l'un parmi : un bis(monoalkylaryl)dialkylaryl phosphite ; un bis(dialkylaryl)monoalkylaryl phosphite ; et un tris(dialkylaryl)phosphite. La composition de phosphites de l'invention est un solide dans les conditions ambiantes. L'invention porte également sur des compositions d'alkylates et sur des procédés de fabrication de telles compositions d'alkylates et de telles compositions de phosphites.
Gelbin Michael E.
Hill Jonathan S.
Power Maurice
Chemtura Corporation
Gowling Lafleur Henderson Llp
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