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US 5,965,643 AGranted
Synergistic stabilizer mixture
AssigneeCiba Specialty Chemicals Corporation
InventorFran.cedilla.ois Gugumus
Life of this patent
Estimating the term…
Abstract
A synergistic stabilizer mixture comprising a component a) and, for example, a component d), where component a) is, for example, a compound of the formula I-a ##STR1## in which n.sub.1 is a number from 2 to 50, and component d) is, for example, a compound of the formula V-a ##STR2## in which n.sub.4 is a number from 1 to 50.
Claims12
A polyolefin stabilizer mixture comprising a component a), b) or c) and a component d) or e) where the weight ratio between component a), b) or c) and component d) or e) is 1:5 to 5:1 and
- component a) is at least one compound of the formula (I-a) or (I-c), ##STR37## in which n.sub.1 is a number from 2 to 20;
- component b) is a product obtained by reacting an intermediate, obtained by reaction of a polyamine of the formula
- H.sub.2 N--(CH.sub.2).sub.3 --NH--(CH.sub.2).sub.2 --NH--(CH.sub.2).sub.3 --NH.sub.2
- with cyanuric chloride, with a compound of the formula ##STR38## component c) is at least one compound of the formulae IVa and IVb ##STR39## in which n.sub.3 and n.sub.3 * independently of one another are a number from 2 to 20;
- component d) is at least one compound of the formula (V-a) or (V-b) ##STR40## in which n.sub.4 is a number from 1 to 20;
- and component e) is at least one compound of the formula VI-a ##STR41## in which R.sub.22 is hydrogen or methyl, and n.sub.5 is a number from 1 to 20.
3 more elements
Dependencies are inferred from the claim text.