Abstract:
A scratch-resistant thermoplastic polymer composition (P) comprising 40 to 99.9 wt.-% of at least one styrene-based copolymer, 0.1 to 20 wt.-% of at least one inorganic metal compound nanoparticle, and optionally at least one polymeric compatibilizing agent, at least one modified polysiloxane compound, at least one colorant, dye or pigment, and/or at least one further additive has improved scratch properties.
Abstract:
The invention relates to graft copolymers—based on non-cross-linked acrylate soft phases from which styrenic monomers are grafted—with a defined micro-structure, having a high transparency, toughness and weather resistance (UV-stability), a process for their preparation and their use, and also to polymer blends comprising said graft copolymers and styrenic polymers, and shaped articles produced therefrom and their use.
Abstract:
Thermoplastic molding masses containing, with respect to the sum of the components A to D: a) 20 to 90 wt % of one or more styrene copolymers as component A, constructed from styrene and at least 30 wt % of acrylonitrile, b) 10 to 80 wt % of one or more impact-modified graft rubbers without olefinic double bond in the rubber phase as component B, constructed from graft base B1 and acrylonitrile-containing graft shell B2, c) 0 to 20 wt % of a polymer C different from the components A and B, and d) 0 to 15 wt % of additive D, wherein the difference in the acrylonitrile content of component A and graft shell B2 is at least 5 units and at most 10 units, have a residual monomer fraction of acrylonitrile of less than 100 ppm.
Abstract:
Thermally conductive polymer (TCP) resin compositions are described, comprising components (X) and (Y): 90 to 99.9% component (X) comprising components (I) and (II): 60 to 85% matrix polymer (I) comprising styrenic polymers (F) selected from: ABS resins, ASA resins, and elastomeric block copolymers of the structure (S—(B/S))n—S; 15 to 40% thermally conductive filler material (II) (D50 1 to 200 μηη), consisting of a ceramic material and/or graphite; 0.1 to 10% chemical foaming agent (Y). Shaped articles made thereof can be used for automotive applications, as a heat sink for high performance electronics, LED sockets or electrical and electronic housings.
Abstract:
Thermally conductive polymer (TCP) resin composition (i) or (ii) are described, comprising components (I) and (II): (i) 40 to 72% by volume of at least one matrix polymer (I); 28 to 60% by volume of a thermally conductive filler material (II) (D50 0.1 to 200 μm) consisting of aluminosilicate (II-1) in combination with a further component (II-2) selected from: multi wall carbon nanotubes, graphite and and boron nitride, wherein the volume ratio (ll-1)/(ll-2) is 30:1 to 0.1:1; or (ii) 40 to 65% by volume of at least one matrix polymer (I); 35 to 60% by volume of aluminosilicate (II) (D50 0.1 to 200 μm); wherein the matrix polymer (I) comprises styrenic polymers (I′) selected from: ABS resins, ASA resins, and elastomeric block copolymers. Shaped articles made thereof can be used as “Cool Touch” surfaces for automobile interior, motor housings, lamp housings and electrical and electronic housings and as heat sinks for high performance electronics or LED sockets.
Abstract:
The use of a fibre composite material W having a sandwich structure, constructed from: A) a thermoplastic material layer w, containing as components: a) a thermoplastic moulding compound A as a matrix, b) a ply made from reinforcing fibres B, and c) optionally additive C, wherein the ply of reinforcing fibres B is embedded in the matrix of the thermoplastic moulding compound A, and, in the production of the material layer w, the thermoplastic moulding compound A comprises at least one chemically reactive functionality, which reacts with chemical groups of the surface of the reinforcing fibres B; and B) a further thermoplastic layer T and/or a foam layer S, wherein said further layer T and/or S is permanently connected to the material layer w; provides increased mechanical stability for the production of moulded parts.
Abstract:
A thermoplastic molding composition can be used for metal plating, in particular for electroplating, comprising the components A) to C): A) 20 to 55 wt. % of at least one graft rubber copolymer (A), B) 20 to 55 wt. % of at least one rubber free SAN copolymer, and C) 25 to 34% by weight of at least one aromatic polycarbonate; the metal-plated polymer composition can be used for automotive applications.
Abstract:
A thermoplastic molding composition is provided for use in automotive applications comprising: A) 40 to 88% by weight of an ABS and/or ASA resin, B) 5 to 30% by weight of hollow glass microspheres, C) 0.1 to 2.5% by weight of a chemical foaming agent, D) optionally 1 to 5% by weight of a compatibilizing agent, E) optionally 0 to 20% by weight of an impact modifier, and F) optionally 0.1 to 3% by weight of a plastic processing aid, wherein the sum of components A) to F) totals 100% by weight.
Abstract:
A method for extruding thermoplastic molding compounds, the production of thermoplastic molding compounds taking place in a screw machine with mechanical dewatering, and impact-modified molding compounds or polymer blends which contain impact-modified thermoplastic materials that were produced by means of the method according to the invention.