Back to results
US 2003/0069337 A1Published application
Stabilizer mixtures for polyolefins
AssigneeCiba Specialty Chemicals Corporation
InventorFrancois Gugumus
Life of this patent
Estimating the term…
Abstract
A stabilizer mixture containing (A) a sterically hindered amino compound, and (B) a polymer containing polar residues, the weight ratio of components (A)(B) being 20:1 to 1:20, with the provisos that. (1) component (B) is different from component (A) and does not contain groups of formulae (I) or (II) in which G is hydrogen or methyl, and G1 and G2, independently of one another, are hydrogen, methyl or together are a substituent ═O; and (2) component (B) is different from a polymer having an acidic hydrogen atom.
Claims22
A stabilizer mixture containing
- (A) a sterically hindered amine compound, and
- (B) a polymer containing polar residues, the weight ratio of components (A):(B) being 20:1 to 1:20;
- with the provisos that
- (1) component (B) is different from component (A) and does not contain groups of the formula (I) or (II)
- 80
- in which G is hydrogen or methyl, and
- G1 and G2, independently of one another, are hydrogen, methyl or together are a substituent ═O;
- and
- (2) component (b) is different from a polymer having an acidic hydrogen atom.
6 more elements
Dependencies are inferred from the claim text.