Thermoplastic resins in contact with metals or metal salts...

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 5/39 (2006.01) C08L 23/02 (2006.01)

Patent

CA 2446493

A composition is disclosed that comprises: (A) a thermoplastic resin; (B) a member selected from the group consisting of metallic copper, cobalt, manganese, and salts of the foregoing in contact with said thermoplastic resin; and (C) a stabilizing amount of: (1) a first stabilizer comprising at least one metal dithiocarbamate salt of the structure (I) wherein M is a divalent, trivalent, or tetravalent metal, X is an integer of from 2 to 4 that equals the valence of M, and the moiety (II) is the residue of any secondary amine that will react with carbon disulfide to form a dithiocarbamate; and (2) a second stabilizer comprising at least one metal deactivator.

L'invention concerne une composition comprenant : (A) une résine thermoplastique ; (B) un élément sélectionné dans le groupe comportant cobalt, manganèse, et cuivre métallique, ainsi que des sels de ces éléments métalliques en contact avec ladite résine thermoplastique ; et (C) une quantité stabilisatrice : (1) d'un premier stabilisateur comprenant au moins un sel de dithiocarbamate de structure (I), où M est un métal divalent, trivalent, ou tétravalent, X est un nombre entier compris entre 2 et 4, égal à la valence de M, et la partie (II) est un résidu de n'importe quelle amine secondaire réagissant avec du disulfure de carbone pour former du dithiocarbamate; et (2) d'un second stabilisateur comprenant au moins un désactivateur de métaux.

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