Extrudable polycarbonate molding compositions
AssigneeBayer Aktiengesellschaft
InventorsAndreas Siedel, Klaus Kircher, Thomas Eckel, Dieter Wittmann
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Abstract
A thermoplastic molding composition comprising A) at least one member selected from the group consisting of polycarbonate and polyestercarbonate and B) a phosphorus compound is disclosed. The composition wherein A) is a mixture of (A.1) 99.9 to 40 wt. % of branched member, and (A.2) 0.1 to 60 wt. % of linear member, is characterized by high melt stability and improved mechanical properties, particularly improved stress crack resistance under the effect of chemicals and a higher notched impact resistance. The composition is especially suitable for producing profiles, films or sheets of any type in an extrusion process.
Claims20
A thermoplastic molding composition comprising
- A) at least one member selected from the group consisting of polycarbonate and polyestercarbonate and
- B) a phosphorus compound,
- wherein A) is a mixture of
- (A.1) 99.9 to 40 wt. % of branched member, and
- (A.2) 0.1 to 60 wt. % of linear member,
- the percents, both occurrences with respect to A).
Dependencies are inferred from the claim text.