Ineos Styrolution Group Gmbh

Bayer Aktiengesellschaft

Other

Bayeraktiengesellschaft

Styrolution (jersey) Limited

Gisbert Michels

Norbert Niessner

Brian J Banaszak

Roland Walker

Tobias Schulz

Hans-Albert Ehlert

Ulrich Jansen

Kirit Gevaria

Shridhar Madhav

Johannes Barth

Rudy Verstraeten

Wolfgang Fischer

Richard Weider

Uwe Zweering

Florian Patcas

SangJun Ahn

Janna Michaelis De Vasconcellos

Michel Pepers

KwanHee Lee

YoungHwa Hwang

Werner Obrecht

Hans-Werner Schmidt

Norbert Steinhauser

Thomas W Cochran

Heike Windisch

Tristan Kolb

Stefan Kaminsky

Nils Wittenberg

Ralph Ostarek

Mukesh Modi

Dieter Wittmann

Thomas Eckel

Rolf-Volker Meyer

Hans-Josef Laas

Helmut Reiff

Joachim Probst

Edgar Leitz

Siegfried Korte

Bernd Klinksiek

Frank Wingler

Holger Warth

Thomas Gross

Nikolaus Nestle

G&uuml;nter Sackmann

Frank Eisentraeger

Raymond D Burk

Pierre Vanhoorne

Christian Ruthard

Klaus Struss

Florian Wieberger

Joong-In Kim

Frank Eisenträger

Fabian Rueter

Libor Seda

Nirmalendu Debata

Kashyap Raval

Lena Grassberger

Otto Schmid

Joachim K Onig

Walter De Vet

Felix Klauck

Roman Honeker

Pankaj Bharadwaj

Sangjun Ahn

Prabhat Singh

Fabian RÜTER

Pratik Bhavsar

Jacques Hendrickx

Erwin Meeus

Kompalli Ravishankar

Manjula Ak

HanBok Song

The present invention is directed to a process for the production of graft copolymer compositions which are based on acrylonitrile-styrene-acrylate (ASA) or acrylonitrile-butadiene-styrene (ABS) graft copolymers. The graft copolymers compositions are obtained by emulsion polymerization and afterwards precipitation, dewatering, drying and optionally cooling of the dried graft copolymer powder, wherein the graft copolymer B powder obtained is mixed with an aeration gas, preferably air and/or nitrogen, wherein the bulk density of the graft copolymer B powder is equal or less than 98.5% of the bulk density of the non-aerated graft copolymer B, during the whole aeration step. The graft copolymer powders show higher powder flowability and less tendency of caking during storage, for example in a silo.

Process for the production of graft copolymer powder compositions and thermoplastic resin compositions

The present invention relates to a process for producing a thermoplastic molding composition and articles made thereof having improved surface quality, in particular improved surface quality after exposure to warm-humid environmental conditions. The thermoplastic molding composition comprises a thermoplastic polymer A, a graft copolymer B obtained by emulsion graft polymerization and optionally a further polymer component P, as well as optional further components/additives K, wherein at least one crystallization additive C, selected from phosphate compounds having 1 to 25 phosphate units, organic acids and salts thereof, is added during or after the preparation of the graft copolymer B.

Thermoplastic molding composition and articles made thereof having improved surface quality

The invention relates to a polymer composition (P), comprising at least one acrylonitrile-butadiene-styrene copolymer (A) (ABS copolymer (A)), characterized in that the polymer composition (P) has a surface energy of &#x3e;38 dyne/cm. The invention further relates to a process for painting a surface of a polymer moulded article comprising the polymer composition (P), wherein no pre-treatment of the surface of the polymer moulded article, such as primer coating, is required prior to the application of the paint.

Acrylonitrile-butadiene-styrene copolymer composition with high surface energy

High heat resistant ABS molding compositions for use in the automotive sector, electronics, and household or healthcare sector comprising: (A) 15 to 35 wt.-% ABS graft copolymer (A); (B) 15 to 35 wt.-% a-methylstyrene/acrylonitrile copolymer (B) (weight ratio 95:5 to 50:50); (C) 20 to 40 wt.-% styrene/acrylonitrile copolymer (C) (weight ratio 95:5 to 50:50; M150,000 to 300,000); (D) 10 to 30 wt.-% random terpolymer (D) made from 13 to 27 wt.-% &#x3b1;, &#x3b2; ethylenically unsaturated cyclic anhydride, 60 to 74 wt.-% aromatic vinyl monomer, and 13 to 27 wt.-% maleimide monomer); (E) 0.1 to 5 wt.-%, of at least one elastomeric block copolymer (E) comprising a vinylaromatic monomer block S and an elastomeric random diene/vinylaromatic onomer block B/S; hard phase proportion is 1 to 40 vol.-% and the diene proportion is less than 50 wt.-%; and (F) 0 to 5 wt.-% of further additives and/or processing aids (F).

High heat resistant ABS molding composition

The invention relates to a process for producing graft copolymers based on acrylonitrile-butadiene-styrene copolymers (ABS), wherein the graft copolymers may be dewatered particularly readily after production and precipitation and have a low residual moisture content after centrifugation. The invention further relates to a process for producing thermoplastic molding materials using the thus obtained ABS graft copolymers.

Process for producing ABS graft copolymers

ABS molding composition comprising: (a) 50 to 80 wt.-% SAN copolymer (a) (S/AN ratio 78:22 to 65:35, M80,000 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&#x2014;an agglomerated butadiene rubber latex&#x2014;(b1), obtained by emulsion polymerization of SAN in presence of agglomerated butadiene rubber latex (b1) (D150 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.

Ultra-high flow acrylonitrile butadiene styrene copolymer compositions

The present invention relates to thermoplastic molding compounds F containing at least two graft rubbers P-I and P-II which are processed by the co-precipitation of a mixture of the respective emulsions containing P-I and P-II. The present invention further relates to a method for producing such thermoplastic molding compounds F and to molded bodies obtained from a thermoplastic molding compound F according to the invention.

ABS molding compound having a good property combination of processability and surface quality

The present invention relates to a process for producing a thermoplastic moulding composition comprising a thermoplastic copolymer A, a graft copolymer B and optionally a further polymer component C as well as optional further additives K, wherein the preparation of the graft copolymer B is carried out via emulsion polymerization, and wherein at least one surfactant S2 is used in grafting step of emulsion polymerization in a volume concentration in the range of 0.46 to 0.75 mol/m, based on the volume of the graft copolymer B latex particles obtained; and wherein the mean particle diameter Dof the latex particles of graft copolymer B is in the range of 60 to 800 nm.

Process for production of impact modified thermoplastic moulding composition with improved processing and impact strength

Thermoplastic molding composition comprising (A) 40 to 80 wt.-% SAN copolymer (S/AN-ratio 78:22 to 65:35, Mw 80,000 to 250,000 g/mol); (B) 20 to 60 wt.-% SBC block copolymer (monovinylarene 61 to 64 wt.-%) comprising conjugated diene/monovinylarene tapered polymer blocks; and (C) 0 to 5 wt.-% additives and/or processing aids (C); exhibiting ultra-high melt flow with good mechanical, thermal and optical properties, a process for its preparation and its use for the production of bulky and/or thin walled articles.

Ultra-high flow styrene acrylonitrile copolymer compositions

Thermoplastic molding composition scan be advantageously used in hydrofluoro olefin containing areas, comprising components A, B, C and, D: 10 to 35 wt.-% ABS graft rubber A obtained by emulsion polymerization, 50 to 75 wt.-% SAN copolymer B, 4 to 20 wt.-% copolymer C from ethylene and C-C-alkyl(meth)acrylate, and 4 to 20 wt.-% ABS graft rubber copolymer D obtained by mass polymerization.

ABS molding composition having improved crack and chemical resistance and its use

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&#x2014;(B/S))&#x2014;S; 15 to 40% thermally conductive filler material (II) (D1 to 200 &#x3bc;&#x3b7;&#x3b7;), 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.

Thermally conductive polymer resin composition based on styrenics with low density

The invention relates to a process for producing a stabilizer dispersion S, wherein the stabilizer dispersion is an aqueous composition comprising at least one phenolic stabilizer A, at least one thio co-stabilizer B, at least one surfactant C and at least one silicon oil component D. Further the present invention is directed to a process for producing a thermoplastic moulding composition, in particular an composition based on acrylonitrile butadiene styrene copolymers (ABS), using the stabilizer dispersion S.

Process for producing a stabilizer dispersion and process for producing a thermoplastic composition stabilized with the stabilizer dispersion

The invention relates to a method for producing thermoplastic molding materials based on acrylonitrile-butadiene-styrene copolymers (ABS) having improved surface properties, in particular improved resistance of the surface quality to storage in a warm, humid environment, and having a reduced content of residual monomers. The invention further relates to the use of a fluid bed dryer and/or a flash dryer in the production of thermoplastic ABS molding materials in order to improve the surface quality. The invention further relates to the use of a fluid bed dryer and/or a flash dryer in the production of thermoplastic ABS molding materials having a reduced content of residual monomers. The invention further relates to ABS molding materials that can be produced by means of the method according to the invention and to molded parts (e.g., molded bodies, films, and coatings) that can be produced from the thermoplastic molding materials according to the invention.

Method for producing ABS plastics having improved properties

Thermally conductive polymer (TCP) resin compositions are described, comprising: 50 to 75% matrix polymer (I) comprising styrenic polymers (&#x393;) such as ABS (acrylonitrile-butadiene-styrene) resins, ASA (acrylonitrile-styrene-acrylate) resins and elastomeric block copolymers of the structure (S-(B/S))-S; and 25 to 50% thermally conductive filler material (II) (D0.1 to 200 &#x3bc;m), consisting of carbonyl iron powder (11-1) in mixture with multi wall carbon nanotubes, silicon carbide, diamond, graphite, aluminosilicates and/or boron nitride (II-2); wherein the volume ratio of (ll-1)/(ll-2) is 15:1 to 0.1:1. Shaped articles made thereof can be used for materials with antistatic finish, electrical and electronic housings, toys and helmet inlays.

Electrically conducting thermally conductive polymer resin composition based on styrenics with balanced properties

Thermoplastic molding compositions can be used in hydrofluoro olefin containing areas, comprising components A, B, C and D:

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Leverkusen, Germany

Gisbert Michels