LOW-EMISSION POLYOLEFIN COMPOSITION CONTAINING VITAMIN E TYPE STABILISER Russian patent published in 2011 - IPC F16L9/12 C08L23/04 C08L23/10 C08K5/13 C08K5/1545 C08K3/04 

FIELD: chemistry.

SUBSTANCE: tube is made from a polyolefin composition which contains a (co)polymer of ethylene or (co)polymer of propylene, a vitamin E type stabiliser of formula (I) , where R1, R2, R3, R4 and R5 independently denote H or unsubstituted or substituted aliphatic or aromatic hydrocarbon radicals which may contain heteroatoms, and a phenol stabiliser of formula (II); in which R6, R7 and R8 independently denote unsubstituted or substituted aliphatic or aromatic hydrocarbon radicals which may contain OH groups; and X1, X2 and X3 independently denote H or an OH group, provided that at least one of X1, X2 and X3 denote an OH group, and optionally an ultraviolet stabiliser.

EFFECT: low emission of additives and products of decomposition thereof in water.

20 cl, 2 tbl, 2 ex