摘要:
Thermoplastic molding compositions comprising, as substantive constituents, A) from 5 to 96% by weight of a vinylaromatic polymer with a syndiotactic structure, B) from 2 to 50% by weight of an inorganic filler, C) from 1 to 15% by weight of a thermoplastic elastomer based on copolymers made from vinylaromatic monomers, dienes and, where appropriate, 1,1-diphenylethylene, D) from 1 to 10% by weight of a compatibilizer, and, where appropriate, E) from 1 to 15% by weight of an elastomeric particulate styrene-diene block copolymer whose diene content may have been completely or to some extent hydrogenated, and, where appropriate, F) additives, where the total of the percentages by weight of A) to F) is 100.
摘要:
Thermoplastic molding compositions comprising, as substantive constituents A) from 5 to 95% by weight of a vinylaromatic polymer having a syndiotactic structure, B) from 2 to 50% by weight of an inorganic filler, C) from 1 to 45% by weight of an elastomeric, particulate graft polymer, D) from 1 to 10% by weight of a compatibilizer, and, where appropriate, E) from 1 to 45% by weight of an elastomeric particulate styrene-diene block copolymer whose diene fraction may have been completely or to some extent hydrogenated, and, where appropriate, F) from 1 to 35% by weight of a thermoplastic elastomer based on copolymers made from vinylaromatic monomers, dienes, and, where appropriate, 1,1-diphenylethylene, and, where appropriate, G) additives, where the total of the percentages by weight of A) to G) is 100.
摘要:
A block copolymer or graft copolymer with weight-average molar mass Mw of at least 100 000 g/mol, comprising a) at least one block S composed of from 95 to 100% by weight of vinylaromatic monomers and from 0 to 5% by weight of dienes, and b) at least one copolymer block (S/B)A composed of from 63 to 80% by weight of vinylaromatic monomers and from 20 to 37% by weight of dienes, with glass transition temperature TgA in the range from 5 to 30° C., where the proportion by weight of the entirety of all of the blocks S is in the range from 50 to 70% by weight, based on the block copolymer or graft copolymer, and also mixtures thereof, and their use.
摘要:
Expandable styrene polymers (EPS) comprising, in each case based on the styrene polymer, a) from 0.05 to 5% by weight of an organic bromine compound whose bromine content is at least 50% by weight, as flame retardant, b) from 0.05 to 2% by weight of a flame retardant synergist, c) from 0.1 to 5% by weight of a metal salt as acid scavenger, and process for their production.
摘要:
A mixture which comprises a) from 25 to 75% by weight of a block copolymer A which comprises at least one hard block S composed of vinylaromatic monomers and comprises one or more soft blocks BA in each case composed of from 0 to 5% by weight of vinylaromatic monomers and from 95 to 100% by weight of dienes, where the proportion by weight of the hard blocks S in the block copolymer A is from 65 to 90% by weight; b) from 5 to 25% by weight of a block copolymer B which comprises at least one hard block S composed of vinylaromatic monomers and comprises one or more copolymer blocks (B/S)B in each case composed of from 20 to 60% by weight of vinylaromatic monomers and from 80 to 40% by weight of dienes, where the proportion by weight of the hard blocks S in the block copolymer B is from 25 to 70% by weight; c) from 0 to 70% by weight of polystyrene or of a block copolymer C other than A and B, and d) from 0 to 6% by weight of a plasticizer D, where the entirety of components A) to D) gives 100% by weight, and use for transparent thermoforming foils or transparent injection-molded items.
摘要:
Composition comprising at least one copolymer A composed of at least one alkylated styrene, of acrylonitrile, and, if appropriate, of at least one further monomer, at least one block copolymer B which has at least one block forming a hard phase and composed of at least one vinylaromatic monomer and has at least one block forming a soft phase and composed of at least one vinylaromatic monomer and of at least one diene, and at least one further copolymer C, and, if appropriate, one polymer D, where the copolymer C is at least one triblock copolymer composed of a first block composed of at least one vinylaromatic monomer, of a second block composed of at least one diene, and of a third block composed of at least one methyl methacrylate monomer, or comprising at least 50% by weight of methyl methacrylate, and the polymer D is at least one styrene polymer selected from glass-clear and impact-resistant polystyrene. The present invention moreover relates to a process for the preparation of the inventive compositions, to the use of the inventive compositions for the production of moldings, of foils, of fibers, or of foams, to moldings, foils, fibers, or foams comprising the inventive composition, and also to the use of the inventive composition as packaging for electronic components, such as integrated circuits (microchips) (“electronic packing”), for applications in chemical engineering, in household products, in bathroom items, e.g. toothbrush tumblers, cosmetics holders, etc., as housings, as tubes, as profiles, for medical items or medical devices, and in toys.
摘要:
A block copolymer or graft copolymer with weight-average molar mass Mw of at least 100 000 g/mol, comprising a) at least one block S composed of from 95 to 100% by weight of vinylaromatic monomers and from 0 to 5% by weight of dienes, and b) at least one copolymer block (S/B)A composed of from 63 to 80% by weight of vinylaromatic monomers and from 20 to 37% by weight of dienes, with glass transition temperature TgA in the range from 5 to 30° C., where the proportion by weight of the entirety of all of the blocks S is in the range from 50 to 70% by weight, based on the block copolymer or graft copolymer, and also mixtures thereof, and their use.
摘要:
The present invention relates to a thermoplastic molding composition at least comprising particles made of nonoxidatively polymerized vegetable oil which has been crosslinked by way of functional groups, as component (A), at least one thermoplastic polymer, as component (B), optionally at least one resin, as component (C), optionally at least one filler, as component (D), and optionally further additives, use thereof and a process for production thereof.
摘要:
The invention relates to a flameproofed resilient block polymer comprising polymerized units of at least one vinylaromatic monomer and at least one diene monomer with at least one flameproofing agent B) which comprises a compound comprising phosphorus, in particular a phosphorus-containing melamine compound, a process for the preparation and the use for the production of moldings.
摘要:
Expandable, thermoplastic polymer bead material, comprising A) from 45 to 98.8 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin whose melting point is in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin whose melting point is below 105° C., C1) from 0.1 to 9.9 percent by weight of a styrene-butadiene block copolymer, C2) from 0.1 to 9.9 percent by weight of a styrene-ethylene-butylene block copolymer, D) from 1 to 15 percent by weight of a blowing agent, E) from 0 to 5 percent by weight of a nucleating agent where the entirety of A) to E) gives 100% by weight, and also processes for production of the same, and use for the production of elastic molded-foam moldings.