СПОСОБ ПОЛУЧЕНИЯ НИЗКОВЯЗКОЙ ВОДНОЙ ДИСПЕРСИИ НА ОСНОВЕ ВОДОРАСТВОРИМОГО ПОЛИМЕРА

Объектом изобретения является способ получения низковязкой полимерной дисперсии на основе водорастворимого полимера путем полимеризации по меньшей мере одного водорастворимого мономера и по меньшей мере одного гидрофобного мономера в присутствии по меньшей мере одного полимерного диспергатора и последующей обработки получаемой полимерной дисперсии, при этом обработку получаемой водной дисперсии осуществляют путем удаления воды с последующим смешиванием получаемой концентрированной дисперсии с водной дисперсией по меньшей мере одного полимерного диспергатора.

Термопластичная композиция

Agglomerationsmittellatese mit gebundenem Polyethylenoxid

SCHLAGZAEHE THERMOPLASTISCHE MASSEN

STYROLHARZZUSAMMENSETZUNG

Stabilisator und thermoplastische Zusammensetzungen, die diese enthalten

Flame-resistant moulding with good durability - comprising styrene]-acrylonitrile]-copolymer, graft polymer, organic halogen-contg. flame-retardant, inorganic cpd., particulate ptfe, etc.

Moulding (I) comprises: (i) 35-90 wt.% styrene-acrylonitrile-copolymer A; (ii) 5-60 wt.% graft polymer B prepd. by grafting a mixt. of styrene and acrylonitrile onto a diene- or acrylate rubber; (iii) 1-30 wt.% organic halogen-contg. flame-retardant C; (iv) 0.5-8 wt.% inorganic gp. 5 cpds. D; (v) 0.05-0.5 wt.% particulate tetrafluoroethylene-polymer E; (vi) 0-10 wt.% (pref. 0.5-5 wt.%) phosphorous cpd. F. (I) is prepd. by mixing an aq. dispersion of E (average particle size, 0.05-20 microns) with at least one additional component A-D as a solid or melt and finally with the remaining components. ADVANTAGE - (I) are flame-resistant and contain minimal amount of flame-retardant and have good durability.

MATRIX FÜR TRANSDERMALE WIRKSTOFFFREISETZUNG

Release layers for pressure sensitive adhesive tapes

An aqueous resin dispersion comprises: (A) a copolymer prepared from an ethylenic unsaturated monomer (A1) containing a perfluoroalkyl group and/or an ethylenic unsaturated monomer (A2) containing a polydimethylsiloxane group, copolymerised with another ethylenic unsaturated monomer (A3); and (B) a water-dispersible polyurethane containing a polydimethylsiloxane group (B1) and a hydrophilic group (B2). The preparation of the dispersion by dispersing (A) in water in the presence of (B) is also claimed.

Wässrige Aufschlämmung von nebenproduziertem Gips und Verfahren zu deren Herstellung

An aqueous slurry of a by-produced gypsum, having a pH of 5 to 10, contains as plasticizer a copolymer prepared by polymerizing a polyalkylene glycol monoester monomer (a) containing 2 to 300 C 2 -C 3 oxyalkylene molecules with at least one monomer (b) selected from among unsaturated monocarboxylic acids, unsaturated dicarboxylic acids and allylsulfonic acids.

RASIERMITTEL FÜR EIN NASSRASIERAPPARAT

Verfahren zur Herstellung von Mischungen thermoplastischer Polymerisate in Pulverform.

THERMOPLASTISCHE FORMMASSEN AUS ABS UND HYDRIERTEM NITRILKAUTSCHUK

Härtbares Harz und Verfahren zu seiner Herstellung.

Polyketon-Polymerzusammensetzungen

Wärmebeständige schlagfeste Polystyrolzusammensetzungen.

SCHWER ENTZÜNDBARE POLYKARBONATGEMISCHE

Beschichtungszusammensetzungen und Tinten

OLEFINPOLYMERISATE MIT VERBESSERTER VERARBEITUNG

HERSTELLUNG VON VINYL ENTHALTENDEN POLYMEREN

NOVEL POLYPHENYLENE OXIDE BLENDS

HIGH IMPACT STRENGTH POLYBUTYLENE TEREPHTHALATE

Verfahren zur Herstellung von Polycarbonat-Formmassen

THERMOPLASTISCHE FORMMASSEN

THERMOPLASTISCHE FORMMASSEN AUS POLYCARBONATEN UND ABS-POLYMERISATEN

KERBSCHLAGZAEHE ABS-FORMMASSEN

FLUORINE-CONTAINING COPOLYMER

Harzzusammensetzung und Formmasse daraus

SCHLAGFESTE, FEUERHEMMENDE HARZZUSAMMENSETZUNG

RUBBER CONTAINING RESIN COMPOSITION AND STYRENE RESIN COMPOSITION CONTAINING THE SAME

A rubber-containing resin composition suitable as an impact modifier for styrene resins (such as styrene homopolymer and copolymers and polymer alloys thereof with other thermoplastic resins), which comprises (A) a graft copolymer having a graft ratio of 10 to 80 % by weight wherein a graft component comprising 15 to 60 % by mole of at least one vinyl cyanide compound, 40 to 85 % by mole of at least one aromatic vinyl compound and 0 to 30 % by mole of at least one other monomer copolymerizable with them is graft-copolymerized onto a diene rubber having a volume average particle size of 100 to 1,000 nm by an emulsion polymerization method, and (B) an emulsion-polymerized copolymer of 15 to 60 % by mole of at least one vinyl cyanide compound, 40 to 85 % by mole of at least one aromatic vinyl compound and 0 to 30 % by mole of at least one other monomer copolymerizable with them, which has a weight average molecular weight of 5,000 to 90,000 and a ratio of weight average molecular weight to ...

Heat and impact resistant resin composition

A heat and impact resistant resin composition which comprises from 10 to 90 parts by weight of a copolymer (A) comprising from 90 to 50% of residues of a vinyl aromatic compound, from 10 to 50% of residues of a maleimide compound and from 0 to 30% of residues of a vinyl compound copolymerizable therewith; from 0 to 50 parts by weight a copolymer (B) comprising from 90 to 40% of residues of a vinyl aromatic compound and from 10 to 60% of residues of an unsaturated nitrile compound; from 5 to 89 parts by weight of a graft copolymer (C) comprising from 25 to 70% by weight of particles of a rubber having a glass transition temperature of not higher than 0 DEG C. and an average particle size of from 0.1 to 0.5 mu m and from 75 to 30% by weight of a matrix resin comprising from 90 to 40% of residues of a vinyl aromatic compound and from 10 to 60% of residues of an unsaturated nitrile compound; and from 1 to 45 parts by weight of a graft copolymer (D) comprising from 2 to 17% by weight of particles ...

BISPECIFIC ANTIBODY DETERMINANTS

FIRE RETARDANT RESINOUS COMPOSITIONS

POLYVINYL CHLORIDE COMPOSITION

... 1517372 PVC compositions HOOKER CHEMICALS & PLASTICS CORP 29 April 1975 [29 April 1974] 17793/75 Heading C3P A PVC composition contains, per hundred parts of PVC, (a) 7À5-8À5 parts of plasticizer, (b) 10-14 parts of MBS or ABS impact modifier, (c) 1À5-2À1 parts processing aid, (d) 1À25-2 parts lubricant, (e) 0À8-1À1 parts of stabilizer and (f) 5-8 parts of stabilizer booster. Preferred are (a) dioctyl phthalate, (c) an acrylic polymer, e.g. a graft of methyl methacrylate on butadiene/styrene, (d) blend of olefinic monoglyceride and hydrogenated olein and tristearyl citrate, (e) mixed calcium, stannous and zinc stearates and (f) epoxidized soyabean oil, di- and tri-nonylphenyl phosphites and polyvinyl alcohol. Inorganic and organic pigments may also be present.

FLAME RETARDANT COMPOSITION

... 1482220 Flame retardant alkenyl aromatic polymer compositions GENERAL ELECTRIC CO 11 Sept 1974 [18 Oct 1973] 39633/74 Heading C3P A flame retardant composition comprises (a) an alkenyl aromatic polymer; (b) a flame retardant additive; and (c) a minor amount of a diorganopolysiloxane polymer gum wherein the organo substituents therein are selected from alkyl, aryl and vinyl radicals and mixtures thereof. Preferred alkenyl aromatic polymers are styrene polymers containing at least 50 wt. per cent styrene, such as 50 : 50 w./w. styrene/ butadiene copolymer, or an A.B.S. polymer. In tne examples, component (c) is a methyl phenyl vinyl polysiloxane. Preferred components (b) are halogenated polycarbonates, especially of the formula wherein n has an average value of 3 to 7. Component (c) preferably also contains an antimony compound such as antimony oxide.

THERMOPLASTIC BLEND COMPRISING ABS AND COUMARONE-INDENE RESIN

... 1493465 Thermoplastic polymer blends UNIROYAL Inc 24 Jan 1975 [26 Feb 1974] 3162/75 Headings C3G and C3P Thermoplastic polymer blends comprise by weight (A) 100 parts of an acrylonitrile/butadiene/styrene gum plastic, (B) 20 to 60 parts of an alkyl(alk)acrylate/butadiene/styrene interpolymer and (C) 5 to 25 parts of a coumarone/ indene resin, the ratio of B to C being at least 1 to 1. (A) may comprise a styrene-acrylonitrile or other acrylic monomer resin combined with a graft copolymer of styrene and acrylonitrile on a polybutadiene or butadiene/styrene copolymer. The compositions may be made into flex fatigue resistant articles, e.g. shoe counters, seating, machine housings and luggage. Examples describe compositions comprising (A) ABS gum plastics comprising styrene/acrylonitrile copolymers blended with graft copolymers of styrene and acrylonitrile on styrene/ butadiene rubbers, (B) methyl methacrylate/ butadiene/styrene copolymers and (C) coumarone/indene resins.

ABS/VINYL ACETATE POLYMERS BLENDS

... 1470079 Graft polymer/vinyl acetate polymer compositions DART INDUSTRIES Inc 21 June 1974 [25 July 1973] 27689/74 Heading C3G A polymeric composition comprises (1) a polymer of a monovinyl or monovinylidene aromatic monomer, an aliphatic vinyl or vinylidene monomer and a rubber and (2) from 0À5% to below 50% by weight, based on the combined weight of (1) and (2), of a vinyl acetate polymer containing more than 50% by weight of vinyl acetate. The compositions described comprise at least one ABS polymer comprising styrene and acrylonitrile grafted on to polybutadiene, polyvinyl acetate or a vinyl acetate-acrylic acid copolymer and, optionally at least one of calcium stearate, butylated hydroxytoluene and carbon black.

NICKEL-CONTAINING PHOSPHITE ESTER PRODUCTS USEFUL AS STABILIZERS FOR POLYOLEFINS

Stabilized graft copolymers

Tris-(o-alkylphenyl or o- cycloalkylphenyl)phosphites are more stable to hydrolysis than the corresponding tris-(p-alkylphenyl or p- cycloalkylphenyl) phosphites and this makes them more useful as heat- stabilizing additives in certain graft copolymer compositions, especially in ABS resin compositions. The alkyl or cycloalkyl groups are those having 3-12 carbon atoms.

Fire-retardant polystyrenic compositions

Disclosed is a self-extinguishing polystyrenic composition comprising a polystyrenic resin, a fire-retardant amount of a halogenated organic fire-retardant agent and a benzotriazolic compound having the formula wherein R1 is H or -CH3 and R2 is H or -CH2N(R3)2 wherein R3 is H, an alkyl radical containing from about 1 to 12 carbon atoms or -CH2 CH2 OH, in an amount between about 1 and 50% of the weight of said fire-retardant agent.

POLYPHASE STRUCTURAL ADHESIVES

FLUORHALTIGES POLYMER AND RESIN COMPOSITION

MOLDING MATERIALS

MOLDING MATERIALS

TRANSPARENT IMPACT RESISTANT ALLOY

ABS COMPOSITIONS WITH TRIMODALKAUTSCHUKTEILCHENVERTEILUNGEN

RESIN COMPOSITION.

HAERTENDE MASSES.

RESIN COMPOSITION.

EPIHALOHYDRINPOLYMERE ABSTENTIONS ANTISTATIC PLASTICS.

WAESSRIGE BONDING AGENT DISPERSIONS FOR THE PRODUCTION OF PAINTING AND COATING MEANS.

WITH ORGANOZINNVERBINDUNGEN PVC STABILIZED MOLDING MATERIALS

FLUIDITY REGULATION OF CEMENT COMPOSITIONS

MODIFIED IMPACT RESISTANT ONE VINYLAROMATI POLYMERS.

THERMOPLASTIC ELASTOMER MIXTURE.

PP FROM MDI AND ALIPHATIC DICARBONIC ACIDS.

THERMOPLASTIC POLYMER COMPOSITION.

THERMOPLASTIC POLYMER COMPOSITION.

POLYMER COMPOSITION.

SELF-EXTINGUISHING POLYMER COMPOSITIONS

KAUTSCHUKHALTIGE STYRENE POLYMERS WITH IMPROVED IMPACT STRENGTH

HEAT-SEALING-ABLE FILMS AND FROM IT MANUFACTURED ARTICLES

ABLÖSBARE HEISSSIEGELFÄHIGE FOLIE

COPOLYMERS ON BASIS OF INSATIATED MONO OR DICARBONIC ACID DERIVATIVES AND OXYALKYLENGLYKOL ALKENYLETHERN, PROCEDURES FOR THEIR PRODUCTION AND YOUR USE

PROCEDURE FOR THE PRODUCTION OF TPU COPOLYMER MIXTURES

POLYMER COMPOSITIONS

GRAFT POLYMER COMPOSITION

ABS COMPOSITIONS

FLAME RETARDANT POLYPHENYLENE ETHER RESIN

A method of toughening thermoplastic polymers and thermoplastic compositions produced thereby

FLAME RETARDANT, NON-DRIPPING COMPOSITION OF POLYPHENYLENE ETHER AND ACRYLONITRILE - BUTADIENE-STYRENE

FLAME RETARDANT COMPOSITION

GRAFTED OLEFIN COPOLYMERS AND POLYCARBONATE BLENDS MODIFIED WITH A GRAFTED OLEFIN COPOLYMER

METHOD FOR DEPOSITING A POLYMER ONTO A SURFACE BY APPLYING A COMPOSITION ONTO SAID SURFACE

A CONVEYOR FOR TRANSPORTING LASAGNE AND SIMILAR FORMS OF PASTA THROUGH A DRIER

PRESSURE SENSITIVE ADHESIVE COMPRISING SOLID TACKY MICROSPHERES AND MACROSPHERES AND MACROMONOMER-CONTAINING BINDER COPOLYMER

Comb polymers from atrp macromonomers

IMPROVED IMPACT POLYMER BLENDS

Pigment dispersions containing aqueous branched polymer dispersant

FLAME-RETARDANT POLYPHENYLENE ETHER RESIN COMPOSITION

BIAXIALLY ORIENTED POLYMERIC SHEET HAVING ATTENUATED BLOCKING ERTIES

COPOLYMERS BASED ON UNSATURATED MONO- OR DICARBOXYLIC ACID DERIVATIVES AND OXYALKYLENE GLYCOL ALKENYL ETHERS, METHOD FOR THE PRODUCTION AND USE THEREOF

The invention relates to copolymers which are based on mono or dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers, vinyl polyalkylene glycol- , polysiloxane- or ester compounds in addition to the use thereof as additives for aqueous suspensions based on mineral or bituminous binding agents. The copolymers provide aqueous building material suspensions with excellent processing properties even in the smallest of doses without inhibiting resistance. The drastic reduction of the water/binding agent content achieved by the use of the inventive copolymers results in highly flowable building materials without any segregation of individual constituents in said building material mixture.

POLYMER COMPOSITION

A polymer composition including polymer particles containing a first polymer and a second polymer is disclosed. The first polymer has a crosslinked core and has a glass transition temperature in the range of -30.degree.C to 100.degree.C. The second polymer containing select crosslinking groups and has a glass transition temperature in the range of - 10.degree.C to less than 18.degree.C. A process to prepare the polymer composition is provided. Also provided are a coated article containing a coating prepared from the polymer composition and a method of preparing the coated article. The polymer composition has good low temperature film formation and provides a film with an acceptable level of hardness.

HIGH TENACITY VINYL ESTER AND/OR EPOXY RESIN-BASED MATERIAL, ITS MANUFACTURING PROCESS, THE COMPOSITE MATERIAL IN IT AND ITS USES

L'invention se rapporte à un matériau à haute ténacité à base d'une résine vinylester et/ou d'une résine époxyde et à son procédé de fabrication. Ce matériau comprend au moins une résine polymérisée choisie parmi les résines vinylesters et les résines époxydes polymérisables à une température inférieure à 70.degree.C et leurs mélanges, ainsi qu'un adjuvant thermoplastique présent dans cette résine sous la forme de particules, et présente une ténacité (K Ic) supérieure ou égale à 1,2 MPa.m 1/2 tel que déterminée selon la norme ISO 13586:2000. Elle se rapporte également à un matériau composite comprenant une matrice constituée dudit matériau et un renfort. Applications: industries automobile, ferroviaire, navale, aéronautique, aérospatiale et autres.

OIL SOLUBLE METAL-CONTAINING COMPOUNDS, COMPOSITIONS AND METHODS

Radiation curable compositions for coatings, adhesives, inks, and molded articles are disclosed. The radiation curable compositions comprise: (A) at least one polymerizable, ethylenically unsaturated compound of one of formulae (I, II, III), wherein M is one or more metal atoms of valence n, wherein n = y.w, and wherein M is optionally more than one metal atom, with the proviso that the global equivalent metal valence is n = w.y; n is an integer of about 1-6; R is a residue of a compound having anhydride and/or carboxylic acid groups with an initial equivalent carboxy equivalent functionality defined by the equation f = x + y + z, wherein f is an integer of about 2 to 30; R1 is a residue of a hydroxy-containing ethylenically unsaturated compound; R2 is H or a residue of a hydroxy-containing ethylenically unsaturated compound different from R1; R3 is a residue of a hydroxy-containing ethylenically unsaturated compound; w is the number of moieties having residue R required for metal valence ...

ABS COMPOSITIONS AND PROCESS FOR PREPARING SAME

ABS COMPOSITIONS AND PROCESS FOR PREPARING SAME An intermediate for use in a polyblend consisting essentially of a copolymer of monoalkenyl aromatic monomer such as styrene and a ethylenically unsaturated nitrile monomer such as acrylonitrile surface grafted onto rubber which is dispersed in a matrix copolymer of the graft copolymer monomers, the dispersed phase being monomodal in particle size distribution and the weight percent of surfacegrafted nitrile monomer being less by at least 2% than the weight percent nitrile monomer in the matrix. This intermediate with mismatched nitrile monomer can be blended with another rubber graft copolymer of different particle size dispersed in ungrafted matrix which contains matched nitrile monomer in the surface graft and matrix to provide a polyblend having properties at least equivalent to those obtained by blending two rubber graft copolymers of different particle size dispersed in a matrix which each contain matched nitrile monomer levels in the ...

SULPHUR-CONTAINING POLYMERS

... 23189-6185 Sulphur-containing polymers of styrene, .alpha.-methyl styrene, pmethyl styrene, vinyl toluene, acrylonitrile or methyl methacrylate or mixtures thereof with a limiting viscosity of from 2 to 15 ml/g (measured in dimethyl formamide at 25.degree.C) and a sulphur content of from 1.15 to 3.95% by weight, whereby at least 90% by weight of the incorporated sulphur is present as a constituent of terminal C1-18-thioalkyl groups. The polymers improve the flowability of acrylonitrile butadiene styrene (ABS) polymers.

STABILIZED FLAME-RETARDANT STYRENIC POLYMER COMPOSITIONS

STABILIZED FLAME-RETARDANT STYRENIC POLYMER COMPOSITIONS This application discloses stabilized flame-retardant styrenic polymer compositions comprising a bromine-containing flame-retardant, antimony trioxide and a three component stabilizer comprising a dialkyltin maleate, a hindered phenolic antitoxidant, and a member selected from the group consisting of anhydrides of a cyclic dicarboxylic acid, ester derivatives thereof, imide derivatives thereof, and monomeric and dimeric polyesters.

METHOD FOR PREPARING ABS TYPE RESIN

... 08-12-0376 APPLICATION FOR LETTERS PATENT FOR AN IMPROVED METHOD FOR PREPARING ABS TYPE RESIN This invention relates to an improved process for preparing ABS resins wherein a alkadiene rubber is grafted in aqueous emulsion with styrene and nitrile type monomers, forming a grafted rubber, extracting said grafted rubber into a monomer phase and separating said monomergrafted rubber phase from said aqueous phase rollowed by mass polymerizing said grafted rubber-monomer phase to form an ABS polyblend, wherein the improvement comprises, carrying out the mass polymerization of said monomers in the presence of sufficient carbon dioxide to provide an ABS resin having a substantially white color.

THERMOPLASTIC RESIN COMPOSITION COMPRISING A RUBBER MODIFIED COPOLYMER

... : The invention provides a thermoplastic resin composition which can be molded to produce a delustered shaped article, which comprises (A) a rubber-modified copolymer and (B) an epoxy group-containing olefin polymer or an unsaturated carboxylic acid-modified olefin polymer (B'). The composition retains the desirable physical properties of the rubber-modified copolymer while producing an article having a delustered (low gloss) surface of attractive appearance.

BLEND OF POLYCARBONATE AND POLYAMIDE COMPATIBILIZED WITH A POLYALKYLOXAZOLINE

This invention relates to a thermoplastic molding composition comprising a blend of polycarbonate and polyamide compatibilized with a polyalkyloxazoline. The compatibilized blend exhibits higher impact resistance, elongation, and solvent resistance than similar blends which were not compatibilized by a polyalkyloxazoline. The compatibilized blend has utility where the combination of high modulus, temperature and solvent resistance, dimensional stability, creep resistance, hydrolytic stability, high elongation and impact strength are required, such as automotive body panels, appliance housings and electrically insulating molded components.

HIGH IMPACT RESISTANCE THERMOPLASTIC COMPOSITIONS BASED ON ACRYLONITRIL-BUTADIENE-STYRENE TYPE RESIN, AND INDUSTRIAL PRODUCTS FROM SAID COMPOSITIONS

DE LA DIVULTATION Composition thermoplastique à haute résistance au choc comprenant de 75 à 99 % en poids d'une résine (A) de type acrylonitrile-butadiè-ne-styrène et de 1 à 25 % en poids d'au moins un polymère d'éthylène (B) comprenant des motifs dérivés de l'anhydride maléïque. Ledit polymère d'éthylène est un copolymère non greffé comprenant de 0,3 à 3 % en moles de motifs dérivés de l'anhydride maléïque. Application à l'obtention d'articles industriels par injection, extrusion ou thermoformage.

FLAME RETARDANT, STYRENE-GRAFTED POLYPHENYLENE ETHER RESIN COMPOSITION CONTAINING A PHOSPHINE OXIDE

... : FLAME RETARDANT POLYPHENYLENE ETHER RESIN COMPOSITIONS A polyphenylene ether resin composition comprising: (i) from 30 to 90 weight percent of a graft co polymer free from polyphenylene ether homopolymers prepared by polymerizing 20 to 200 parts by weight of styrene-type compound at a temperature in the range from 130.degree.C to 200.degree.C in the presence of 100 parts by weight of polyphenylene ether and 0.1 to 15 parts by weight of a radical initiator and (ii) 10 to 70 weight percent of a styrene-type compound polymer having a number average molecular weight in the range from 50,000 to 200,000; is rendered fire retardant by the addition of an effective amount of a phosphine oxide having the formula: wherein R1 may be the same or different radicals selected from the group consisting of hydrogen and the methyl radical, R2 is an alkyl radical of 4 to 8 carbon atoms and n is either zero or one.

ABS-MOULDING COMPOSITIONS

ABS-MOULDING COMPOSITIONS This invention relates to thermoplastic moulding compositions of the ABS-type produced in emulsion and having improved properties in relation to known ABS-moulding compositions, particularly extreme toughness coupled with ready processibility and high surface gloss.

PREPARATION OF COMPOSITION OF VINYLCHLORIDE RESIN AND NOVEL GRAFT COPOLYMER

ACRYLONITRILE-BUTADIENE-STYRENE POLYMERS HAVING IMPROVED RESISTANCE TO DISCOLORATION

CONTINUOUS MASS POLYMERIZATION PROCESS FOR ABS POLYMERIC POLYBLENDS

This invention relates to a process for the continuous mass polymerization of a monomer formulation comprising at least principally a monoalkenylaromatic monomer and an ethylenically unsaturated nitrile monomer having dispersed therein a first grafted diene rubber to form a first partially polymerized mixture; polymerizing said first mixture to form a second partially polymerized mixture followed by dispersing a second grafted rubber in said second mixture to form a third partially polymerized mixture. The third mixture is devolatilized to form a polyblend of a polymer of said monomers and said dispersed grafted diene rubbers having a bimodal particle size distribution. The process is a continuous one run at a high temperature and high rate to produce polyblends having a matrix polymer phase of pre-determined average molecular weight and molecular weight distribution.

THERMOPLASTIC MOULDING COMPOSITIONS OF TRIAZINE-CONTAINING POLYCONDENSATES AND GRAFT POLYMERS

THERMOPLASTIC MOULDING COMPOSITIONS OF TRIAZINE CONTAINING POLYCONDENSATES AND GRAFT POLYMERS Thermoplastic moulding compositions of(A) 15 to 80 % by weight of an aromatic polycondensate containing s- triazine rings, and(B) 20 to 85 % by weight of a graft polymer obtained by polymerising a mixture of(B.1) 50 to 90 % by weight of styrene, .alpha.-methyl styrene, methyl methacrylate or mixtures thereof and(B.2) 10 to 50 % by weight of acrylonitrile methacrylo nitrile, methyl methacrylate or mixtures thereof, onto a diene or acrylate rubber, the mixture as a whole containing from 5 to 25 % by weight of s-triazine rings, based on (A) and (B),and 5 to 40% by weight of rubber,based on(A)and(B).

ABS/VINYL ACETATE POLYMER BLENDS

A polymeric composition comprising an ABS polymer and from about 0.5 to below 50% by weight of a vinyl acetate polymer exhibits improved environmental stress crack resistance. The compositions are therefore suitable for numerous special applications such as molded pipe fittings, drains, tanks, traps, ducts, etc.