Rigid PVC stabilised with N,N-dimethyl-6-aminouracils
AssigneeCiba Specialty Chemicals Corporation
InventorsWolfgang Wehner, Hans-Helmut Friedrich, Rolf Drewes, Kornelia Malzacher
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Abstract
Compositions are described, comprising A) rigid or semi-rigid PVC having a plasticiser content of up to 20%, and B) at least one compound of formula 1, ##STR1## wherein X is O or S, and R is H or phenyl, with the proviso that compounds from the groups of the perchlorate compounds, glycidyl compounds, beta-diketones, beta-keto esters, dihydropyridines, polydihydro-pyridines, polyols, disaccharide alcohols, sterically hindered amines (tetraalkylpiperidine compounds), alkali alumosilicates (zeolites), hydrotalcites, alkali alumocarbonates (dawsonites) are not present.
Claims10
A composition, comprising
- A) rigid or semi-rigid PVC having a plasticiser content of up to 20%, and
- B) at least one compound of formula 1, ##STR7## wherein X is O or S, and R is H or phenyl, with the proviso that compounds from the groups of the perchlorate compounds, glycidyl compounds, beta-diketones, beta-keto esters, dihydropyridines, polydihydropyridines, polyols, disaccharide alcohols, sterically hindered amines (tetraalkylpiperidine compounds), alkali alumosilicates (zeolites), hydrotalcites, alkali alumocarbonates (dawsonites) are not present.
Dependencies are inferred from the claim text.