Stabilizer in solid form for organic polymers

Details Stabilizer in solid form for organic polymers Stabilizer in solid form for organic polymers

1998-02-18

2000-05-02

Brouillette, Gabrielle

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

524110, 524448, 524430, 524492, C09K 1504, C08J 534, C08J 300, C08J 328, C08J 501

Patent

active

060568976

ABSTRACT:
Solid form of a stabilizer for organic polymers consisting of one or more tocopherols, as such or in formulation, absorbed on porous polypropylene with a high crystallinity, in a quantity ranging from 30% to 85% by weight. The above tocopherols, as such or in formulation, can also be used in a mixture with other stabilizers such as, for example, secondary antioxidants containing phosphorous or sulfur, sterically hindered phenols and sterically hindered amines.

REFERENCES:
patent: 5308549 (1994-05-01), Laermer et al.
patent: 5574082 (1996-11-01), Keller et al.
patent: 5594055 (1997-01-01), Young
patent: 5844027 (1998-12-01), Burdick et al.

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