Extremely finely divided inorganic powders as flame retardants in thermoplastic moulding compositions
First Claim
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1. A thermoplastic moulding composition consisting essentially of:
- A. A thermoplastic polycarbonate which may be partly or wholly replaced by an aromatic polyester carbonate or partly replaced by at least one thermoplastic homo- or copolymer;
B. 0.01 to 50 wt. %, based on the weight of component A, of an extremely finely divided inorganic powder having a mean particle diameter of 0.1 to 100 nm, the inorganic powder consisting of one or more metals or metal compounds of one or more metals of the 1st to 5th main group or 1st to 8th sub-group of the periodic table; and
C. 0.1 to 50 wt. %, based on the weight of component A, of a flame retardant.
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Abstract
Thermoplastic molding compositions containing:
A. A thermoplastic polymer of ethylenically unsaturated monomers or a polycondensate of bifunctional reactive compounds,
B. 0.01 to 50, preferably 0.1 to 10 parts by weight per 100 parts by weight of (A) of extremely finely divided inorganic powder with a mean particle diameter of 1 to 200 nm, preferably 1 to 150 nm, in particular 1 to 100 nm
and
C. 0.1 to 50, preferably 0.5 to 20 parts by weight per 100 parts by weight of (A) of flame retardant.
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21 Claims
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1. A thermoplastic moulding composition consisting essentially of:
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A. A thermoplastic polycarbonate which may be partly or wholly replaced by an aromatic polyester carbonate or partly replaced by at least one thermoplastic homo- or copolymer; B. 0.01 to 50 wt. %, based on the weight of component A, of an extremely finely divided inorganic powder having a mean particle diameter of 0.1 to 100 nm, the inorganic powder consisting of one or more metals or metal compounds of one or more metals of the 1st to 5th main group or 1st to 8th sub-group of the periodic table; and C. 0.1 to 50 wt. %, based on the weight of component A, of a flame retardant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification