Stabilized thermoplastic moulding materials
AssigneeBASF SE
InventorsBurkhardt Dames, Bernd Ziegler
Life of this patent
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Abstract
The invention relates to thermoplastic moulding materials containing A) 29 to (100 wt. % minus 1 ppb) of at least one thermoplastic polymer. B) 1 ppb to 1 wt. % or at least one polyethyleneimine homopolymer of copolymer, as well as C) 0 to 70 wt. % of other additives, as the essential constituents thereof. The weight percent of constituents A) to C) amounts to 100% in every case.
Claims8
A thermoplastic molding composition comprising, as substantive components,
- A) from 29% by weight to (100% minus 1 ppb) of at least one thermoplastic polyoxymethylene homo- or co-polymer,
- B) from 1 ppb to 1% by weight of at least one polyethyleneimine homo- or copolymer,
- and also
- C) from 0 to 70%.by weight of other additives, where the percentages by weight of components A) to C) always give 100%.
A process for increasing thermal stability and/or diesel-fuel resistance, which comprises adding from 1 ppb to 1% by weight of a polyethyleneimine homo- or copolymer to a polyoxymethylene homo- or copolymer A).
The use of polyethyleneimine homo- or copolymers for increasing the diesel-fuel resistance of polyoxymethylene homo- or copolymers.
The use of polyethyleneimine homo- or copolymers for increasing the thermal stability of polyoxymethylene homo- or copolymers.
Dependencies are inferred from the claim text.