INEOS STYROLUTION GROUP GMBH

The invention relates to expandable polymer particles with a content of recycled material based on styrene polymers, to a method for producing same, and to the use of the expandable polymer particles in a molded foam part. The expandable polymer particles contain 10 to 99 wt. %, based on the total weight, of at least one recycled material (A), which comprises at least one styrene polymer (A-1) and which largely consists of styrene polymers. 1 to 10 wt. %, based on the total weight, of at least one propellant (C), and optionally at least one primary polymer (B), at least one nucleating agent (D), and/or at least one additive (E).

The invention relates to a polymer composition P comprising: A: 0.1 to 50 parts by weight of at least one post-consumer recycled polymer as component A; B: 50 to 99.9 parts by weight of at least one post-consumer recycled vinylaromatic copolymer as component B, wherein the post-consumer recycled polymer A is dissolved in the vinylaromatic copolymer B, and/or wherein the post-consumer recycled polymer A is dispersed in form of discontinuous phase domains in a continuous phase of the vinylaromatic copolymer B and wherein the discontinuous phase of the post-consumer recycled polymer A at least comprises phase domains having an average diameter in the range of >30 nm to ≤5 μm.

The invention relates to polymer compositions that contain a thermoplastic molding compound A, at least one reinforcing fiber B and at least one inorganic filler material C, the polymer composition having excellent aesthetic quality after thermoplastic processing. The invention also relates to a process for preparing the claimed composition and to uses thereof.

Polyacrylate graft rubber copolymer B and an impact modified thermoplastic molding composition thereof, where the graft copolymer B is composed of: B1: 50 to 70 wt.-% crosslinked acrylate polymer graft base B1 B2: 30 to 50 wt.-% graft shell B2 comprising a first layer B21 of vinylaromatic monomers, and a second layer B22 of vinylaromatic monomers B21-1 and nitrile monomers B22-2: wherein the particle diameter dw of the graft base BI is 255 to 290 nm; the fraction of B21 is 10 to 26 wt.-%; and the amount of B22-2, is 20 to 30 wt.-%.

The invention relates to a process for producing a fiber-reinforced composite material (organosheet) containing at least one thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, at least one sheet material consisting of continuous reinforcing fibers is embedded in a matrix composition comprising at least one thermoplastic molding compound, the thermoplastic molding compound including at least one thermoplastic polymer and optionally at least one polarity-functionalized polymer that contains repeat units of at least one functional monomer. The invention also relates to the composite materials produced according to the claimed method.

The invention relates to composite materials (organosheets) containing a thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, a sheet material consisting of continuous reinforcing fibers in a matrix composition comprising the molding compound is used, the thermoplastic molding compound containing at least one polyolefin, and optionally at least one further, polarity-functionalized polymer. The invention also relates to a process for produci2023ng the claimed composite material and to uses thereof.

The invention relates to expandable polymer particles based on styrene polymers, to a process for the preparation thereof and to the use of the expandable polymer particles in a molded foam part. The polymer particles contain A) 87 to 99 wt. % of one or more styrene polymers (A), in relation to the total weight of (A), (B) and (C); B) 1 to 10 wt. % of one or more foaming agents (B); C) 0 to 3 wt. % of one or more nucleators or nucleating agents C); and optionally further additives (Z) in amounts which do not impair the domain formation and the foam structure resulting therefrom.

The invention relates to a thermoplastic molding composition comprising 5.0 to 57 wt.-% ABS graft copolymer (A); 30.5 to 80 wt.-% SAN copolymer (B) 1.5 to 9.5 wt.-% copolymer (C) with epoxy, maleic anhydride or maleic imide functions; 5 to 29 wt.-% of hollow glass microspheres (D); 6 to 12 wt.-% of glass fibers (E); 0 to 5 wt.-% additives and/or processing aids (F), having a low density and high strength, and a process for its preparation, shaped arti-cles thereof, and its use in the electronics sector.

A thermoplastic polymer composition (A) leads to reduced migration of stabilisers or other ingredients (I), if it contains e.g. 50 to 90 wt. %, relative to the polymer composition (A), of a thermoplastic polymer (P), which has migration barrier properties, as well as at least one stabiliser component (S) and/or a further ingredient (I), wherein the following is true for the polymer composition (A): a) the glass transition temperature T g of the thermoplastic polymer (P) is greater than the use temperature; and b) the polymer-specific constant for polymers (Ap) of the thermoplastic polymer (P) is less than I; and c) the derived diffusion coefficient (Dp) of the thermoplastic polymer (P) for mineral oil is less than 10 −12 cm 2/s at 20° C.; and d) the morphology of the thermoplastic polymer (P) is either single-phase homogeneous, or two-phase heterogeneous.

ABS molding composition comprising: (a) 50 to 80 wt.-% SAN copolymer (a) (S/AN ratio 78:22 to 65:35, M w 80,000 to 250,000); (b) 8 to 25 wt.-% graft copolymer (b) consisting of 15 to 60 wt.-% graft sheath (b2) and 40 to 85 wt.-% graft substrate—an agglomerated butadiene rubber latex—(b1), obtained by emulsion polymerization of SAN in presence of agglomerated butadiene rubber latex (b1) (D 50 150 to 800 nm); and (c) 8 to 30 wt.-% SBC block copolymer (vinylarene 58 to 68 wt.-%) comprising diene/vinylarene tapered polymer blocks; exhibiting ultra-high flow melt with good mechanical properties, a process for their preparation and their use for the production of bulky and/or thin walled articles.