Enhancement of resistance of olefin polymers to heavy metal catalyzed oxidative degradation

Abstract

Abstract 1. A STABILIZER COMBINATON USEFUL IN THE ENCHANCEMENT OF THE RESISTANCE OF ALPHA-MONOOLEFIN POLYMERS TO COPPERCATALYZED OXIDATIVE DETERIORATION, CONSISTING ESSENTIALLY OF AT LEAST ONE 3-AMIDO-1,2,4-TRAZOLE HAVING THE FORMULA: -C(=X)-N(-R)-(1,2,4-TRIAZOL-3,5-YLENE)- -C(=X)-N(-R)-(1,2,4-TRIAZOL-3,5-YLENE)- -C(=X)-N(-R)-(1,2,4-TRIAZOL-3,5-YLENE)-A- -C(=X)-N(-R)-(1,2,4-TRIAZOL-3,5-YLENE)- -X- WHEREIN: (A) R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL HAVING FROM ONE TO FOUR CARBON ATOMS; (B) Z1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL HAVING FROM ONE TO ABOUT EIGHTEEN CARBON ATOMS; ARYL AND ALKYLARLY HAVING FROM SIX TO ABOUT EIGHTEEN CARBON ATOMS; ALKYLENEALKOXY AND ALKYLENEARYLOXY HAVING FROM TWO TO ABOUT EIGHTEEN CARBON ATOMS AND NITROGEN-CONTAINING HETEROCYCLIC RINGS HAVING FROM FOUR TO FIVE RINGS CARBON ATOMS AND ONE TO TWO RING NITROGEN ATOMS; AND IN WHICH A IS ALKYLENE HAVING FROM ONE TO ABOUT EIGHT CARBON ATOMS; (C) X IS SELECTED FROM THE GROUP CONSISTING OF OXYGEN AND SULFUR; (D) Z2 IS A BENZENE OR NAPTHALENE RING SUBSTITUTED BY FROM ONE TO TWO R1 GROUPS AND FROM ZERO TO TWO R2 GROUPS; AND (I) R1 IS SELECTED FROM THE GROUP CONSISTING OF OH, SH, SR5 (WHERE R5 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ALKYLENE CARBOXYALKYL HAVING FROM ONE TO FOUR CARBON ATOMS), AND (WHERE R3 AND R4 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL HAVING FROM ONE TO THREE CARBON ATOMS), PROVIDED, THAT THERE ARE AT MOST TWO 1,2,4-TRIAZOLE GROUPS IN THE MOLECULE, AND AT LEAST ONE ALPHA-MONOOLEFIN POLYMER STABILIZER SELECTED FROM THE GROUP CONSISTING OF ORGAINC PHOSPHITES, ALKYL-SUBSTITUTED PHENOLS AND POLYNUCLEAR PHENOLS THIODIPROPIONIC ACID ESTERS, OLYVALENT METAL SALTS OF ORGAINC ACIDS, HYDROCARBON SULFIDES AND POLYSULFIDES, THE STABILIZER BEING COMPATIBLE WITH POLYPROPYLENE AND HAVING A LOW VAPOR PRESSURE AT OLEFIN POLYMER WORKING TEMPERATURES. -S(=O)2-; -NH-C(=S)-NH-, >C(-R4)-R3 WHERE Y IS SELECTED FROM THE GROUP CONSISTING OF OXYGEN, SULFUR, Y- -C(=X)-N(-R)-(1,2,4-TRIAZOL-3,5-YLENE)- (WHERE X IS AS IN (C) ABOVE) AND AT LEAST ONE R1 IS IN THE ORTHO POSITION); (II) R2 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, PHENYL, ALKYL PHENYL, ALKOXY, ACYL, ACYLOXY, PHENOXY AND ALKYL PHENOXY HAVING FROM ONE TO ABOUT EIGHTEEN CARBON ATOMS, HALOGEN AND AMINO; AND

Inventors

• 👤 M Minagawa
• 👤 M Akutsu
• 👤 K Nakagawa

Bibliographic Details