Stabilised thermoplastic moulding compounds
AssigneeBASF SE
InventorsBurkhardt Dames, Wolfgang Saurer
Life of this patent
Estimating the term…
Abstract
Thermoplastic molding compositions comprising, as substantive components A) from 29% by weight to 99% by weight of at least one thermoplastic polymer, B) from 1 ppb to 5% by weight of at least one polyethyleneimine homo- or copolymer, C) from 0.05 to 2% by weight of at least one sterically hindered amine compound, and also D) from 0 to 70% by weight of other additives, where the percentages by weight of components A) to D) always give 100%.
Claims8
A thermoplastic molding composition comprising, as substantive components,
- A) from 29% by weight to 99% by weight of at least one thermoplastic homo- or copolyoxymethylene, or a mixture of these,
- B) from 1 ppb to 5% by weight of at least one polyethyleneimine homo- or copolymer,
- C) from 0.05 to 2% by weight of at least one sterically hindered amine compound,
- and also
- D) from 0 to 70% by weight of other additives,
- where the percentages by weight of components A) to D) always give 100%.
A process for increasing thermal stability and/or diesel-fuel resistance, which comprises adding from 1 ppb to 5% by weight of a polyethyleneimine homo- or copolymer B) and from 0.05 to 2% by weight of at least one sterically hindered amine compound to a polyoxymethylene homo- or-copolymer A).
Dependencies are inferred from the claim text.