초록 ▼

A thermoplastic molding composition that features good mechanical properties as well as processability is disclosed. The composition that contains aromatic polycarbonate and/or aromatic polyester carbonate, rubber-modified graft polymer and a plurality of hollow ceramic beads is suitable for making

A thermoplastic molding composition that features good mechanical properties as well as processability is disclosed. The composition that contains aromatic polycarbonate and/or aromatic polyester carbonate, rubber-modified graft polymer and a plurality of hollow ceramic beads is suitable for making molded articles characterized by good ESC behavior and flammability rating.

대표청구항 ▼

What is claimed is: 1. A thermoplastic molding composition consisting of A) 10-90 parts by weight of at least one member selected from the group consisting of aromatic polycarbonate and aromatic polyester carbonate, B) 0.5-30 parts by weight of rubber-modified graft polymer, C) 0.1-50 parts by weig

What is claimed is: 1. A thermoplastic molding composition consisting of A) 10-90 parts by weight of at least one member selected from the group consisting of aromatic polycarbonate and aromatic polyester carbonate, B) 0.5-30 parts by weight of rubber-modified graft polymer, C) 0.1-50 parts by weight of a plurality of hollow ceramic beads having a density of 2-3 g/cm3 and a mean particle size from 0.5 to 100 μm, D) optionally phosphorous-containing flame proofing agent, E) optionally vinyl (co)polymer, and F) optionally at least one conventional functional additive selected from the group consisting of flame-retardant synergist, anti-dripping agent, lubricant, mold-release agent, nucleating agent, stabilizer, antistatic agent, conductive carbon black, carbon fibers, metal fibers, carbon nanotubes, dyestuffs and pigment. 2. The composition of claim 1, wherein the phosphorous-containing flame proofing agent is present in 1-18 parts by weight. 3. The composition of claim 1, wherein the vinyl(co)polymer is present in 1-30 parts by weight. 4. The composition of claim 1, wherein the conventional functional additive is present in 0.5-5 parts by weight. 5. The composition according to claim 1, wherein Al2O3 content of the hollow ceramic beads is 15 to 45 percent relative to their weight. 6. The composition according to claim 1, wherein the hollow ceramic beads exhibit compressive strengths of 50-700 MPa. 7. The composition according to claim 2, wherein said phosphorus-containing flameproofing agent conforms to formula (IV) wherein R1, R2, R3 and R4 independently of one another denote C1 to C8 alkyl, C5 to C6 cycloalkyl, C6 to C20 aryl or C7 to C12 aralkyl, in each instance optionally substituted by alkyl, and/or halogen, n denotes, independently of one another, 0 or 1, q denotes 0 to 30 and X denotes a mononuclear or polynuclear aromatic residue with 6 to 30 C atoms, or a linear or branched aliphatic residue with 2 to 30 C atoms. 8. The composition according to claim 7, wherein said X is the residue of bisphenol A. 9. A molded article comprising the composition according to claim 1.