Oxidatively stable polyolefin composition
Abstract
Abstract A POLYOLEFIN COMPOOSITION CONTAINING AS A STABILIZER, ALONE OR WITH OTHER STABILIZERS, AN ORGANO PHOSPHITE HAVING THE FOLLOWING GENERAL FORMULA: 1-R3,2-(R1-O-P(-O-R2)-O-),3-R4,R5-BENZENE WHEREIN R1 AND R2 EACH REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF SUBSTITUTED AND UNSUBSTITUTED ALKYL, CYCLOALKUL, ARYL, ALKARYL,ARALKYL, AND ALIPHATIC THIO ETHER GROUPS AND R3, R4 AND R5 EACH REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL, CYCLOALKYL, ARYL, ALKARYL AND ARALKYL GROUPS, AT LEAST ONE OF SAID R3 AND R4 BEING A TERTIARY BUTYL GROUP. SUITABLE ORGANO PHOSPHITES INCLUDE, FOR EXAMPLE, DI-NBUTYL (2-T-FUTYL-CRESYL)PHOSPHITE DI-N-HEXYL(2-T-BUTYLM-CRESYL)PHOSPHIE, DI-N-HEXYL(2-T-BUTYL-P-CRESYL)PHOSPHITE, DI-N-OCTYL(2-T-BUTYL-PLCRESYL)PHISPHITE, DI-N-BUTYL3,4-DI-T-BUTYL-PHENYL)PHOSPHITE, DI-N-BUTYL-(2,6-DI-T-BUTYLP-CRESYL)PHOSPHITE, DI-PHENYL(2-T-BUTYL-P-CRESYL)PHOSPHITE, TRI(2-T-BUTYL-P-CRESYUL)PHOSPHITE, DI-(ETHYLTHIOETHYL)-(2-T-BUTYL-P-CRESYL)PHOSPHITE, DI-(OCTYLTHIUOETHYL) (2-T-BUTYL-P-CRESYL)PHOSPHITE, AND TRI(2,4-DI-T-BUTYLPHENYL)PHOSPHITE.
Inventors
- 👤 Tsuneto Kuriyama
- 👤 Toshihiko Kuroda
- 👤 Shigeru Tanba
- 👤 Tetsuzo Murakami
Bibliographic Details
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