Flame-resistant thermostable polycarbonate ABS moulding materials
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United States of America Patent
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May 20, 2003
Grant Date -
N/A
app pub date -
Feb 7, 2000
filing date -
Aug 11, 1997
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Abstract
A flame-resistant, thermoplastic molding composition characterized by its improved stress cracking resistance, notched impact strength and heat resistance is disclosed. The composition contains A) an aromatic polycarbonate or polyestercarbonate, B) a graft polymer of B.1 5 to 95 wt. % of one or more vinyl monomers on B.2 5 to 95 wt. % of one or more graft substrates with a glass transition temperature below 10.degree. C. and an average particle size (d.sub.50 value) of 0.05 to 5 .mu.m, C) 0 to 50 parts by weight of a thermoplastic vinyl copolymer, D) 0.5 to 20 parts by weight of at least one phosphorus compound of the general formula (I) and optionally at least one further phosphorus compound which differs from compounds of the formula (I), and E) 0.05 to 5 parts by weight of a fluorinated polyolefin.
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