COMPOSITIONS WITH POLYARYLENE(ETHER)SULFONS

DE602022023183T2Active Publication Date: 2025-10-15BASF SE
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Patent Information

Application Number
DE602022023183
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-11-23
Filing Date
2022-11-16
Publication Date
2025-10-15
Estimated Expiration
2042-11-16

AI Technical Summary

Technical Problem

Polyarylene(ether)sulfones and polyamides are not miscible, leading to poor mechanical properties and low comparative tracking index (CTI) in binary blends, while existing compatibilization methods have not fully satisfied the desired performance requirements for injection molding and flame retardancy.

Method used

A composition comprising 20 to 80% polyarylene(ether)sulfone with ≤0.05% phenolic end groups, 10 to 50% semi-aromatic polyamide, 4 to 15% aluminum phosphinate, 0.01 to 2% acid scavenger, 0 to 10% compatibilizer, 0 to 60% fibrous or particulate filler, and 0 to 40% impact modifier, optimized for improved CTI and flame retardancy.

Benefits of technology

The composition achieves enhanced mechanical properties and high CTI values, suitable for injection molding with improved flame retardancy.

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