Dimensionally stable thermoplastic moulding materials
AssigneeBASF SE
InventorsMartin Weber, Peter Wolf, Stefan Grutke
Life of this patent
Estimating the term…
Abstract
Thermoplastic molding compositions comprise A) from 10 to 97.9% by weight of a partly crystalline polyamide, B) from 0.1 to 50% by weight of a copolyamide composed of B1) from 60 to 90 mol % of units derived from s-caprolactam and B2) from 10 to 40 mol % of units derived from aliphatic dicarboxylic acids and from aliphatic diamines, C) from 1 to 40% by weight of a copolymer based on styrene or on substituted styrenes and on unsaturated nitriles, D) from 1 to 50% by weight of a fibrous filler and E) from 0 to 30% by weight of other additives, where the percentages by weight of components A) to E) are 100% in total.
Claims8
A thermoplastic molding composition comprising
- A) from 10 to 97.9% by weight of a partly crystalline polyamide different from B,
- B) from 0.1 to 50% by weight of a copolyamide composed of
- B1) from 60 to 90 mol % of units derived from ε-caprolactam and
- B2) from 10 to 40 mol % of units derived from both aliphatic dicarboxylic acids and from aliphatic diamines,
- C) from 1 to 40% by weight of a rubber-free copolymer of a styrene of the formula I or mixtures thereof
- where R is alkyl having from 1 to 8 carbon atoms or hydrogen and R1 is alkyl having from 1 to 8 carbon atoms, and n is 1, 2 or 3, and an unsaturated nitrile or mixtures of unsaturated nitriles,
- D) from 1 to 50% by weight of a particulate or fibrous filler or mixtures of these.
Dependencies are inferred from the claim text.