FIELD: chemistry.
SUBSTANCE: invention relates to a stabilising system for halogen-containing polymers, as well as a composition and article made from the composition which contains the stabilising system. The stabilising system for halogen-containing polymers contains component (A) in form of a calcium monocarbonate hydroxodialuminate of formula (A) CamAl2(OH)6+2(m-1)CO3*nH2O (A), where m varies from 3.8 to 4.2 and n varies from 0 to 3, and component (B) in form of catena-2,2',2"-nitrile trisethanol perchlorate lithium or sodium coordination polymer (B1), having a monomer link of formula 
, where Mt denotes Li or Na, An denotes OCIO3, q equals 1, and can additionally contain perchlorate of quaternary or tertiary ammonium or phosphonium (B2).
EFFECT: high heat-stabilising action.
17 cl, 19 tbl
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