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US 2016/0102197 A1Published application
Transparent, impact-modified styrene-copolymer-based molding compound
AssigneeStyrolution Group GmbH
InventorsPhilipp BOECKMANN, Sven FLEISCHMANN, Matthias MUELLER, Pascal HESSE, Jordan KOPPING
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Abstract
The invention relates to thermoplastic molding compounds which contain impact-modified styrene/nitrile monomer copolymers, to molded products and films produced therefrom and to the use thereof. The impact modifiers used are linear A-B-A tri-block copolymers from hard polymer blocks A and a soft polymer block B, preferably polymethylmethacrylate-block-polybutylacrylate-block-polymethylmethacrylate.
Claims11
1-10. (canceled)
A thermoplastic molding composition composed of the following components
- K1:
- from 60 to 90% by weight of at least one copolymer K1 made of:
- K11:
- from 70 to 85% by weight of at least one styrene or styrene derivative K11,
- K12:
- from 30 to 15% by weight of at least one ethylenically unsaturated monomer K12 comprising a nitrile group,
- K13:
- from 0 to 20% by weight of at least one other, copolymerizable monomer K13,
- where the entirety of K11, K12, and K13 gives 100% by weight;
- K2:
- from 40 to 10% by weight of at least one linear A-B-A triblock copolymer K2 made of:
- A:
- from 50 to 70 mol % of hard polymer blocks A comprising at least one C1- to C4-alkyl methacrylate (A1);
- and
- B:
- from 30 to 50 mol % of a soft polymer block B composed of at least one C1- to C12-alkyl acrylate B1;
- K3:
- from 0 to 10% by weight of auxiliaries and/or additives;
- and
- K4:
- from 0 to 15% by weight of at least one copolymer K4 made of styrene and of another ethylenically unsaturated comonomer which comprises no nitrile group;
- where the entirety of components K1 to K4 gives 100% by weight.
19 more elements
Dependencies are inferred from the claim text.