Back to results
US 2004/0167279 A1Published application
Shiny, impact-resistant polystyrol which is resistant to tension cracks
AssigneeBASF SE
InventorsDaniel Wagner, Peter Weinkotz, Herbert Morgenstern, Hans-Jurgen Renner
Life of this patent
Estimating the term…
Abstract
A process for increasing the stress-cracking resistance of polystyrene molding compositions, stress-cracking-resistant, glossy polystyrene molding compositions, composite layered sheets or composite layered films with an outer layer of this type, and also processes for producing moldings for refrigeration equipment.
Claims14
A process for increasing the stress-cracking resistance of polystyrene molding compositions, which comprises admixing a styrene-based thermoplastic elastomer (STPE) with the polystyrene molding composition.
A polystyrene molding composition comprising
- A) from 70 to 95% by weight of a glossy impact-modified polystyrene (HIPS) with a surface gloss of more than 40%, measured at an angle of 60° to DIN 67530, or a mixture thereof with standard polystyrene (GPPS), and
- B) from 5 to 30% by weight of a styrene-based thermoplastic elastomer (STPE).
Dependencies are inferred from the claim text.