Fire-resistant polycarbonate-ABS molding material, useful for the production of molded parts for domestic appliances, office machines, cars, electrical goods etc.

    公开(公告)号:DE19828538A1

    公开(公告)日:1999-12-30

    申请号:DE19828538

    申请日:1998-06-26

    Applicant: BAYER AG

    Abstract: Thermoplastic molding material based on polycarbonate or polyester-carbonate contains a graft copolymer (B) made by emulsion polymerization with an initiator comprising organic hydroperoxide and ascorbic acid, plus a phosphazene component (D) and optionally other components. Thermoplastic molding materials containing: (A) 40-99 parts by weight (pts. wt.) aromatic polycarbonate and/or polyester-carbonate; (B) 0.5-60 pts. wt. graft copolymer of (B1) 5-95 wt.% vinyl monomer(s) on (B2) 95-5 wt.% diene rubber particles with a glass transition temperature (Tg) of below 10 deg C, which is obtained by emulsion polymerization using an initiator system comprising organic hydroperoxide and ascorbic acid for the graft polymerization; (C) 0-45 pts. wt. thermoplastic polymer(s) selected from vinyl (co)polymers and polyalkylene terephthalates; (D) 0.1-50 pts. wt. phosphazene(s) of formula (Ia) and/or (Ib): in which: R = amino, optionally halogenated 1-8C alkyl, 1-8C alkoxy, or optionally alkyl- and/or halogen-substituted 5-6C cycloalkyl, 6-20C aryl or aryloxy or 7-12C aralkyl; k = 0 or 1-15; and (E) 0-5 pts. wt. fluorinated polyolefin. Independent claims are also included for: (a) a process for the production of these materials by mixing and melt-compounding the components, optionally with other additives; (b) molded products produced from these materials, especially casing parts.

    Fire-resistant polycarbonate-ABS molding material, useful for the production of housing parts for domestic appliances or office machines, parts for cars etc.

    公开(公告)号:DE19828535A1

    公开(公告)日:1999-12-30

    申请号:DE19828535

    申请日:1998-06-26

    Applicant: BAYER AG

    Abstract: Thermoplastic molding material based on polycarbonate or polyester-carbonate and acrylonitrile butadiene styrene (ABS)-type graft copolymer, containing a combination of a phosphazene compound and a phosphate ester or a metal salt of an acid phosphate ester, together with a fluorinated polyolefin and optionally a thermoplastic polymer. Thermoplastic molding materials containing (parts by weight): (A) Aromatic polycarbonate and/or polyester-carbonate (40-99), (B) graft copolymer (0.5-60) of (B1) 5-95 wt.% vinyl monomer(s) on (B2) 95-5 wt.% graft base(s) with a glass transition temperature (Tg) of below 10 deg C, (C) thermoplastic polymer(s) (0-45) selected from vinyl (co)polymers and polyalkylene terephthalates, (D) phosphazene(s) (0.1-50) of formula (Ia) and/or (Ib): in which R = amino, optionally halogenated 1-8C alkyl, 1-8C alkoxy, or optionally alkyl- and/or halogen-substituted 5-6C cycloalkyl, 6-20C aryl or aryloxy or 7-12C aralkyl; k = 0 or 1-15, (E) phosphorus compound(s) (0.5-20) of formula (IIa-IId): in which R -R = optionally halogenated 1-8C alkyl, optionally alkyl- and/or halogen-substituted 5-6C cycloalkyl, 6-20C aryl or 7-12C aralkyl; N = 0-30; n = 0 or 1; R , R = optionally halogenated 1-24C alkyl, optionally halogen- and/or 1-10C alkyl-substituted 5-6C cycloalkyl, 6-20C aryl or 7-12C aralkyl, or R and R may form an alkyl chain in the case of (IId); Me = a Main Group 1-3 metal or a Subgroup 8, 1B or 2B metal; q = the valency of Me and (F) fluorinated polyolefin (0.05-5). Independent claims are also included for: (a) A process for the production of these materials by mixing and melt-compounding the components, optionally with other additives; (b) molded products produced from these materials, especially casing parts.

    Flame-resistant thermostable polycarbonate abs moulding materials

    公开(公告)号:AU9156898A

    公开(公告)日:1999-03-01

    申请号:AU9156898

    申请日:1998-07-29

    Applicant: BAYER AG

    Abstract: A flame-resistant, thermoplastic molding composition characterized by its improved stress cracking resistance, notched impact strength and heat resistance is disclosed. The composition containsA) 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° C. and an average particle size (d50 value) of 0.05 to 5 mum,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), andE) 0.05 to 5 parts by weight of a fluorinated polyolefin.

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