PROPYLENE COMPOSITION FOR FOAMING WITH IMPROVED MECHANICAL PROPERTIES
DE602019068354T2Active Publication Date: 2025-04-09BOREALIS GMBH
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Patent Information
- Application Number
- DE602019068354
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2019-11-25
- Publication Date
- 2025-04-09
- Estimated Expiration
- 2039-11-25
AI Technical Summary
Technical Problem
Existing polypropylene compositions struggle to achieve a balance between excellent foamability and mechanical properties in foamed parts, particularly in terms of cellular structure and dimensional stability.
Method used
A polypropylene composition comprising 55.0 to 95.0 wt.% of a heterophasic propylene copolymer and 5.0 to 45.0 wt.% of a random copolymer of propylene and alpha-olefins synthesized with a single-site catalyst, which enhances Charpy Notched Impact Strength and elongation at break without compromising tensile or flexural modulus.
Benefits of technology
The composition achieves excellent foamability with a fine cellular structure and maintains a good balance of mechanical properties, including improved impact strength and dimensional stability.
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