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US 11,142,641 B2Granted
Transparent impact-resistant composition
AssigneeArkema France
InventorsFrédéric Malet, Mathieu Sabard, Philippe Blondel, Yves Deyrail
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Abstract
The invention relates to a composition comprising: (A) an amorphous or quasi-amorphous copolymer containing polyamide blocks and containing polyether blocks, the polyamide blocks comprising cycloaliphatic units; (B) a semicrystalline polymer or copolymer comprising amide units; (C) another polymer or copolymer comprising amide units; and (D) a multilayer polymer comprising at least a layer (D1) and a layer (D2). This composition has advantageous properties of transparency and impact strength, especially for the manufacture of sports articles.
Claims23
A composition comprising:
- (A) an amorphous or quasi-amorphous copolymer containing polyamide blocks and containing polyether blocks, the polyamide blocks comprising cycloaliphatic units;
- (B) a semicrystalline polymer comprising amide units or copolymer comprising amide units;
- (C) another polymer comprising amide units or copolymer comprising amide units;
- and
- (D) a multilayer polymer comprising at least a layer (D1) and a layer (D2), and
- wherein the composition exhibits an impact strength greater than 80 kJ/m2 at 23° C. and a transmittance greater than 75% at 560 nm over a 2 mm thick plate.
3 more elements
Dependencies are inferred from the claim text.