Stabilization of polyolefins in permanent contact with...

Details Stabilization of polyolefins in permanent contact with... Stabilization of polyolefins in permanent contact with...

C - Chemistry, Metallurgy

08

K

C08K 5/51 (2006.01) C08K 5/13 (2006.01) C08K 5/22 (2006.01) C08K 5/3435 (2006.01) C08K 5/3492 (2006.01) C08L 23/02 (2006.01)

Patent

CA 2185488

Polyolefin mouldings which have excellent stability on permanent contact with extracting media comprise, as stabilizers, a selected mixture comprising an organic phosphite or phosphonite and a specially selected group of sterically hindered phenols or a certain group of sterically hindered amines. In addition, a selected three-component mixture comprising a phosphite or phosphonite, a phenolic antioxidant and a certain group of sterically hindered amines is particularly suitable as stabilizer for polyolefin mouldings which are in permanent contact with extracting media.

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