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US 5,665,832 AGranted
Flameproofed thermoplastic mouldings having improved properties
AssigneeBayer Aktiengesellschaft
InventorsHerbert Magerstedt, Friedemann Paul
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Abstract
The invention relates to thermoplastic moulding compositions based on polyalkylene terephthalate, disodium tetrabromophthalate and optionally glass fibres for the production of mouldings which show improved mechanical properties and at the same time a good flame-resistant behavior, without impairment of the thermoplastic matrix.
Claims7
Thermoplastic moulding compositions, containing
- A) from 25 to 97 parts by weight of polyalkylene terephthalate,
- B) from 3 to 20 parts by weight of disodium tetrabromophthalate,
- C) from 0 to 10 parts by weight of antimony trioxide or antimony pentoxide and
- D) from 0 to 45 parts by weight of reinforcing agent,
- wherein the sum of A+B+C+D totals 100 and wherein up to 25 parts by weight of polyalkylene terephthalate may be replaced by aromatic poly-carbonate and/or graft polymer, and wherein from 1 to 10 part by weight (referred to 100 parts by weight of the total weight) of polyolefins may be added.
2 more elements
Dependencies are inferred from the claim text.