Ineos Styrolution Group Gmbh

Roland Walker

Brian J Banaszak

Norbert Niessner

Gisbert Michels

SangJun Ahn

Johannes Barth

Florian Patcas

Michel Pepers

Rudy Verstraeten

YoungHwa Hwang

Wolfgang Fischer

Achim Stammer

Bernd Hisgen

Klaus-Dieter Hungenberg

Ula El-Jaby

Nikolaus Nestle

Philipp Boeckmann

Libor Seda

Marcus Reining

Sangjun Ahn

Philipp BÖCKMANN

Markus Reining

The invention relates to a process for the production of thermoplastic moulding compounds, in particular for the production of acrylonitrile-butadiene-styrene (ABS), wherein at least a first reagent () and a second reagent () of the thermoplastic moulding compounds are fed to a loop conduit () which comprises a static mixer (), wherein the reagents () are pressed in loops through the loop conduit () and passing the static mixer (), whereby the reagents () are dispersed to form a dispersion () in the static mixer (). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.

Process for the production of thermoplastic moulding compounds

The invention relates to graft copolymers (B) composed of an agglomerated graft core (B1) and at least one graft shell (B2) and also to copolymers (C) having an agglomerating effect, a method for producing said graft copolymers (B), thermoplastic molding compositions and also the use of the thermoplastic molding compositions.

Efficient copolymers having an agglomerating effect

The invention relates to a process for the production of thermoplastic moulding compounds, in particular ABS, wherein at least a first reagent () and a second reagent () of the thermoplastic moulding compounds are fed to a gear pump () which comprises a housing and at least a first gear wheel that is rotatable relative to the housing about a first axis, and a second gear wheel that is rotatable relative to the housing about a second axis, wherein a loop conduit () is provided, and wherein the reagents () are pressed in a loop through the loop conduit () and passing the gear wheels, whereby the reagents () are dispersed to form a dispersion () in the gear pump (). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.

A process produces a polymer composition (A) containing a styrene copolymer (a) and an impact modifier (b), comprising a copolymer (b1) as graft base and a graft (b2), where the steps of the process are: (1) providing a crosslinked copolymer (b1) made of: (b11) from 70 to 99.99% by weight of a conjugated diene or acrylate, (b12) from 0 to 29% by weight of another comonomer, (b13) from 0 to 10% by weight of crosslinking monomers, and (b14) from 0.01 to 0.7% by weight of a chain-transfer reagent; (2) applying, to the copolymer (b1), at least one graft (b2) comprising: (b21) from 65 to 95% by weight of a vinylaromatic monomer, (b22) from 5 to 35% by weight of acrylonitrile and/or methacrylonitrile, and (b23) from 0 to 30% by weight of monoethylenically unsaturated monomers, thus providing the impact modifier (b); (3) mixing the styrene copolymer (a) and the impact modifier (b), and thus leads to improved mechanical properties of the polymer composition (A).

Process for producing thermoplastic polymer compositions with optimized degree of crosslinking

The present invention relates to a process for the production of styrene graft copolymers comprising addition and graft copolymerization of styrene monomers A1 and vinyl cyanide monomers A2 to a graft base B where the ratio by mass of A1 to A2 in the monomer feed at the end of the monomer feed time is lower than the ration by mass integrated over the entire monomer feed time. The present invention further relates to a graft copolymer obtainable by a process according to the invention, a molding composition comprising such a graft copolymer, and a molding obtained from such a molding composition.

Thermoplastic molding compounds with an optimized residual monomer content

The invention relates to a thermoplastic composition containing the components A and B and optionally the additional components C and D, the sum of which equals 100 wt. %. The molding compound consists of: a) 60 to 75 wt. % of one or more styrene copolymers A, b) 25 to 40 wt. % of one or more graft copolymers B, c) 0 to 15 wt. % of a rubber C which is different from component B, and d) 0 to 5 wt. % of one or more additives D. The composition contains 0.2 to 3.0 wt. %, based on the total weight of the components A to D, of oligomers, can be readily processed, and leads to scratch-resistant molded parts.

Thermoplastic molding compounds with optimized flowability-toughness ratio

The invention relates to thermoplastic ABS molding compositions comprising components A) and B): A) from 5 to 80% by weight of a graft polymer A) having bimodal particle size distribution; and B) from 20 to 95% by weight of a thermoplastic polymer B) having a viscosity number VN of from 50 to 120 ml/g. The invention further relates to a process for the preparation of graft copolymer A and to the graft copolymer made by that process.

ABS product with improved fire retardancy

The invention relates to thermoplastic moulding materials based on acrylonitrile-butadiene-styrene, comprising a SAN-polymer matrix and a graft copolymer, structured from an agglomerated butadiene rubber-graft base and a SAN-graft envelope. The agglomerated graft base has a bimodal particle size distribution of a fraction x) of non-agglomerated particles having a d50-value in the range from 80 to 120 nm and a fraction y) of agglomerated particles having a d-value in the range from 350 to 550 nm and a polydispersity U of less than 0.28. The invention further relates to a method for producing the graft copolymer, wherein an acrylate copolymer having a polydispersity U of less than 0.27 and a d50-value of 100 to 150 nm is used for agglomeration. The invention further relates to the use of thermoplastic moulding materials for producing moulded parts.

Thermoplastic moulding materials based on acrylonitrile, styrene and butadiene

The invention relates to thermoplastic molding materials based on acrylonitrile-butadiene-styrene, comprising a SAN-polymer matrix and a graft copolymer, structured from an agglomerated rubber-graft base and a SAN-graft envelope. The basis of the graft base is a diene rubber having a vinyl-aromatic ratio of 10.5 to 24.5 wt %. The agglomerated graft base has a bimodal particle size distribution of a fraction x) of non-agglomerated particles having a d-value in the range from 80 to 120 nm and a fraction y) of agglomerated particles having a d50-value in the range of 350 to 550 nm and a polydispersity U of less than 0.28. The invention further relates to a method for producing the graft copolymer, wherein an acrylate copolymer having a polydispersity U of less than 0.27 and a d50-value of 100 to 150 nm is used for agglomeration. The invention further relates to the use of thermoplastic molding materials for producing molded parts.

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Osnabrueck, Germany

Roland Walker