Sterically hindered phenol antioxidant granules having...

Details Sterically hindered phenol antioxidant granules having... Sterically hindered phenol antioxidant granules having...

B - Operations, Transporting

01

J

B01J 2/20 (2006.01) B29B 9/00 (2006.01) C07C 69/612 (2006.01) C08K 5/13 (2006.01)

Patent

CA 2403692

Sterically hindered phenol antioxidant additive granules are formed from a paste comprising an organic processing agent. After drying, the granules consist essentially of the sterically hindered phenol antioxidant additive system. The granules have a balanced hardness that provides sufficent abrasion resistance while permitting ready dispersion into a polymer host.

La présente invention concerne des granules d'addition antioxydantes à phénol à encombrement stérique, formées à partir d'une pâte comprenant un agent de traitement organique. Après séchage, les granules sont essentiellement constituées du système d'addition antioxydant à phénol à encombrement stérique. Les granules ont une dureté équilibrée qui leur donne une résistance à l'abrasion suffisante, tout en leur permettant une bonne dispersion dans un hôte polymère.

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