СПОСОБ ПОЛУЧЕНИЯ ВОДНЫХ ДИСПЕРСИЙ СОПОЛИМЕРОВ

Использование: водные дисперсии сополимеров для покрытий, адгезивных композиций. Сущность изобретения: способ получения водных дисперсий сополимеров путем полимеризации смеси мономеров, содержащей не менее 60 мас. стирола и бутадиен, в водной эмульсии в присутствии агента передачи цепи, - дисульфида бис (2-бензамидофенила) в количестве 0,1 10% от массы сомономеров, смесь сомономеров содержит до 20 мас. итаконовой и акриловой кислоты. 1 з. п. ф-лы, 2 табл.

Zusammensetzungen und Verfahren zur Inhibierung der Polymerisierung von vinylaromatischen Monomeren

Verfahren zur Herstellung von Styrol Polymere

VERBINDUNGEN UND VERFAHREN

VERFAHREN ZUR HERSTELLUNG VON AMINOALKYLENPHOSPHONSAEUREGRUPPEN AUFWEISENDEN IONENAUSTAUSCHERHARZEN

Thermoplastische Harzmischung.

Thermoplastische Harzmischung.

ALKYLAMINOPHOSPHONIC CHELATING RESINS, THEIR PREPARATION AND USE IN PURIFYING BRINES

MULTIFUNKTIONALE ALKOXYAMINE AUF GRUNDLAGE VON POLYALKYLPIPERIDINEN, POLYALKYLPIPERAZINONEN UND POLYALKYLMORPHOLINONEN, UND DEREN VERWENDUNG ALS POLYMERISATIONSREGULATOREN/-INITIATOREN

Verfahren zur Herstellung von Katalysatoren auf Polymerträger

Aktivierte und konjugierte Polyaryl-Substrate

WAESSRIGE EMULSION EINES ACRYLSAEURECOPOLYMER.

POLYMERE VERDICKUNGSMITTEL UND VERFAHREN ZUR HERSTELLUNG.

Verfahren zum Katalysieren von Kondensationsreaktionen.

GEMISCH UND VERFAHREN ZUR BEHANDLUNG VERZINNTER STAHLOBERFLÄCHEN.

Polyoxyalkylenseitenketten enthaltende Copolymere.

Verfahren zur Herstellung von expandierbaren Polystyrol- Teilchen

Verfahren zur Herstellung von an der Doppelbindung mit Ethylen verlängerten Styrol-Derivaten mit in der gebildeten Verlängerungskette verbleibender Doppelbindung und neue mit Ethylen verlängerte Styrol-Derivate

KATALYSATORKOMPONENTE ZUR POLYMERISATION VON OLEFINEN

Diene! homopolymer and (block) copolymer prepn. - by polymerising diene in the presence of organo-lithium cpd. and sodium or potassium salt of phenol!-amino resin

Carbon chain homopolymer and block- and statistical copolymers of conjugated diene with vinyl aromatic monomers are prepd. by polymerisation of dienes with (di)vinyl aromatic monomers in a hydrocarbon solvent at -30 to 150 deg.C in the presence of a lighium organic catalyst R(Li)x (where R is a hydrocarbon gp. or a diene polymer and x is 1-4) and a reaction prod. of a phenolamino resin with an alkali metal of formula (I). In (I) n is 1;10, M is sodium or potassium, R2 is 2-20C alkyl or 7-20C arylalkyl and R1 is H, 1-6C alkyl or 7-9C arylalkyl. (I) is used in an amt. of 0.07-2.00 mVal per mVal active lithium. (I) is an antioxidant and non-volatile preventing oxidn. of the polymer during sepn. and drying. The polymer can be used for tyres, shoes and cables.

Katalysatorbestandteil zur Olefinpolymerisation

METHOD OF PREPARING OLIGOMERS

Process for producing styrene based polymer and molded articles comprising the polymer

TERT-BUTYL STYRENE TERPOLYMERS

Separation of acid from acid polymers

Strong acids of MW less than 200 and ionization constant greater than 1.0 x 10-3 are separated from acidic polymers of MW at least 1000 by dialysis through an anion-exchange membrane. Preferred anion-exchangers are those with quaternary ammonium groups, particularly those with an anion-exchange capacity of at least 1.0 meq./g. of dry membrane. Particularly mixtures separated are those resulting from the sulphonation of vinyl aromatic polymers, e.g. polyvinyl toluene or styrene/ divinyl benzene resin, and containing sulphuric acid together with the sulphonated polymer. The membrane may be a polyethylene-styrene graft polymer with quaternary ammonium groups.ALSO:Strong acids of MW less than 200 and ionization constant greater than 1.0 x 10-3 are separated from acidic polymers of MW at least 1000 by dialysis through an anion-exchange membrane. Preferred anion-exchanges are those with quaternary ammonium groups particularly those with an anion-exchange capacity of at least 1.0 meq./g. of dry ...

PROCESS FOR THE PRODUCTION OF STYRENE POLYMERS

Tertiary butyl styrene copolymers their production and use

Copolymers are described of at least 75% by weight of tert-butyl styrene, from 1% to 24% by weight of a copolymerizable second monomer and from 1% to 10% by weight of methacrylic acid, the copolymers having certain specified solubility and rheological characteristics in AVTUR 50 aviation kerosene. A process for making the copolymers by aqueous emulsion polymerization of the monomers under certain defined conditions is also described. The copolymers are useful as additives to liquid hydrocarbon aircraft fuels for the purpose of reducing the tendency of such fuels to form inflammable mists under shock conditions.

SELF-EXTINGUISHING THERMOPLASTIC COMPOSITIONS

A process for the preparation of moulding compositions for manufactured products is described. The said process is implemented by mixing a) a chlorostyrene polymer having an intrinsic viscosity higher than 0.6 dlg<-1>, measured in toluene at 22 DEG C, with b) a crude graft polymer of chlorostyrene on butadiene rubber, in which the elastomer/chlorostyrene ratio is between 40/60 and 70/30, the components a) and b) being mixed in such a ratio that the polymerised diene content is less than 20 %. The mixtures obtained have properties such as good workability and high impact resistance. Moreover, they are self-extinguishing and show a high heat distortion point.

COPOLYMERS

POLYMERISATION OF CO-INHIBITORS

Production of styrene-type polymers

A monovinyl aromatic hydrocarbon and/or an ar-halo monovinyl aromatic hydrocarbon is polymerized using t-butylperoxytrimethylsilane as catalyst. The monomer may be styrene or p-chlorostyrene or a mixture of styrene and a -methylstyrene, acrylonitrile or methyl methacrylate, of o-, m- and p-methylstyrenes, or a solution of a rubbery butadiene-styrene (75 : 25) copolymer in styrene. A catalytic amount of the silane may be dissolved in the monomer which is then heated at 75-125 DEG C. until 15-45% conversion to polymer and the temperature is then raised from 75-95 DEG C. to 180-200 DEG C. over a period of 3-7 hours and kept at that temperature for 0.5-5 hours. The temperature during the last part of the reaction is preferably 180-220 DEG C. The catalyst may include a second peroxy compound of half-like 10-15,000 hours in benzene at 100 DEG C., e.g. di-t-butyl peroxide. Specification 726,057 is referred to.

SELF-EXTINGUISHING RESIN COMPOSITIONS

... 1,211,254. Self-extinguishing polymer compositions. DOW CHEMICAL CO. 10 Jan., 1968, No. 1481/68. Headings C3P and C3G. A self-extinguishing composition comprises a polymer of at least one vinyl aromatic compound and 0À1-5% by wt. of a bromine containing mixed alkenyl-aryl ether wherein the hydrogen atoms on the olefinic carbon atoms in the alkenyl group are replaced by bromine atoms, the alkenyl group containing 3 or 4 carbon atoms, the other hydrocarbon radical of the ether molecule attached to the ether oxygen atom consisting of a triphenylmethyl radical or a halogen-substituted aryl radical. The polymer may be polystyrene or a high impact styrene polymer containing 2-20% of polybutadiene or a butadiene-styrene copolymer and 98-80% styrene. The ether may be a (bromo - allyl or a bromo - butenyl) - (bromophenyl or bromo-naphthyl) ether, or a bromo- or chloro - (bromoalloxy) phenyl - propane. The compositions may be made by dissolving the ether in the monomer, e.g. styrene, which is then ...

PREPARATION OF PARTICULATE CROSS-LINKED POLYMERS

... 1492428 Porous cross-linked polymer particles SHOWA DENKO KK 4 June 1975 [4 June 1974] 24161/75 Heading C3C Porous cross-linked polymer particles are obtained by polymerizing in aqueous suspension a mixture comprising up to 95% monovinyl aromatic monomer and at least 5% divinyl aromatic monomer, in the presence of paraffin wax and an initiator, removing the paraffin wax from the resulting polymer and, if desired, introducing ion exchange groups into the polymer. In the examples, the monomers comprise (1) divinyl benzene (55%), ethyl vinyl benzene (40%) and other unsaturated compounds (5%) and (2) a mixture of (1) together with about 400% of styrene. Benzoyl peroxide was used as the initiator and sodium dodecyl benzene sulphonate and tricalcium phosphate were also present. Polymerization was effected at 95‹ C. in an autoclave and after washing and drying, the paraffin wax was removed by passing mineral spirit through a column of the particles. Methanol was then passed through and the resultant ...

PROCESS FOR THE ANIONIC HOMO-OR CO-POLYMERISATION OF AROMATIC COMPOUNDS CONTAINING AN ETHYLENICALLY UNSATURATED GROUP

New salts.

PROCEDE D'HYDROGENATION SELECTIVE DE (C) POLYMERE OF INSATURES

PROCEDURE FOR THE PRODUCTION OF NEW ESTERS

POLYMER DISPERSIONS IN POLYESTERPOLYOLEN

VERFAHREN ZUR HERSTELLUNG VON NEUEN O-HALOGEN-ISOPROPENYLBENZOLEN

VERFAHREN ZUR TRENNUNG VON NUKLEINSÄUREN

PROCEDURE FOR THE SEPARATION FROM NUCLEIC ACIDS

PROCEDURE FOR THE PRODUCTION OF NEW O-HALOGEN-ISOPROPENYLBENZOLEN

CONTACT LENS MATERIAL

PROCEDURE FOR THE PRODUCTION OF AQUEOUS DISPERSIONS OF COPOLYMERS

LIVING POLYMERIZATION FROM OLEFINEN TO FINALFUNCTIONAL POLYMERS

PROCEDURE FOR THE PRODUCTION OF A STYRENE POLYMER

PROCEDURE FOR THE PRODUCTION OF A SYNDIOTAKTI VINYLAROMATI POLYMER

PROCEDURE FOR THE PRODUCTION OF 4 - HYDROXYSTYROLPOLYMEREN FROM 4 - ACETOXYSTYROLPOLYMEREN.

POLYMERE ONE AND OLIGOMERE OF BILE ACID DERIVATIVES, PROCEDURE FOR YOUR PRODUCTION AND YOUR USE AS DRUGS

COPOLYMER OF CORE BROMIERTEM STYRENE AND ACRYLONITRILE AND PROCEDURE FOR THE PRODUCTION OF A SUCH COPOLYMER.

LATEX OF MAGNETIC POLYMERS AND PROCEDURES FOR THE PRODUCTION.

PROCEDURE FOR OLIGOMERISATION.

PROCEDURE FOR THE PRODUCTION OF CRYSTALLINE VINYLAROMATI POLYMERS WITH MAINLY SYNDIOTAKTI STRUCTURE.

PROCEDURE FOR THE PRODUCTION OF A CATALYST FOR THE POLYMERIZATION OF OLEFINEN.

COMPOSITIONS FOR SURFACE TREATMENT, POLYMERS FOR IT AND PROCEDURES FOR THE SURFACE TREATMENT.

STYRENE COPOLYMER AND PROCEDURE FOR THE PRODUCTION OF SUCH COPOLYMERS.

POLYMERIZATION IN PRESENCE OF BETA SUBSTITUTING NITROXYD RADICAL

PROCEDURE FOR THE PRODUCTION OF POLYMERS ON STYRENE BASIS.

PROCEDURE FOR THE PRODUCTION FROM MATERIAL TO EXTRUSIONSFORMEN.

MIXTURE AND PROCEDURE FOR THE TREATMENT OF TINNING STEEL SURFACES.

OLIGOMERE AND HOMOPOLYMERE OF META OR PARAISOPROPENYL ALPHA, ALPHA DIMETHYLBENZYLISOCYANAT

STABLE PEROXYDICARBONATZUSAMMENSETZUNGEN.

PROCEDURE FOR THE POLYMERIZATION OF STYRENE COMPOSITIONS IN AQUEOUS SUSPENSIONS IN PRESENCE OF ROSIN RESINIC ACIDS OR YOUR SALTS.

PROCEDURE FOR THE POLYMERIZATION USING THE-CONTAINING CATALYSTS

VEFAHREN TO THE CHAIN ABORT WITH THE ANIONI POLYMERIZATION

IN-SITU-POLYMERIZATION OF MONOETHYLENISCH INSATIATED MONOMERS WITH OLIGOMEREN OR POLYMERE SECONDARY AMINES

PROCEDURE FOR THE PRODUCTION OF HYDROGENATED AROMATIC POLYMER COMPOSITIONS

NEW MULTI-FULL OF SEEDS HALBMETALLOCEN CATALYST AND PRODUCTION OF STYRENE POLYMERS WITH ITS APPLICATION

Powdered coat means

MAGNESIUM, TITANIUM, A HALOGEN AND AN ELECTRON DONOR ABSTENTION CATALYST COMPONENT, YOUR PRODUCTION AND USE

OO-T-ALKYL-O-POLYCAPROLAKton-MONOPEROXYCARBONAT

COPOLYMERS AND YOUR USE AS SLIDING AND PARTING AGENTS FOR THE PROCESSING OF THERMOPLASTIC PLASTICS

BONDED FABRICS.

COMPOSITIONS AND PROCEDURES FOR INHIBIERUNG POLYMERIZING OF VINYLAROMATI MONOMERS

PROCEDURE FOR THE PRODUCTION GRAPHITIC PARTICLE OF ABSTENTIONS OF EXPAND-CASH OF STYRENE POLYMERS

POLYMERE ONE SURFACE COATING COMPOSITIONS

ALKYL-AROMATIC LUBRICATING OILS

WASSRIGE POLYMER DISPERSION FOR USE INTO GLÄZENDE LACQUERS ON WATER BASIS

HIGH SPEED ALKALI-SOURCECASH RHEOLOGIC ADDITIVES FOR AQUEOUS SYSTEMS

PROCEDURE FOR THE PRODUCTION OF PARTICLES AND PARTICLE WITH THE HELP OF OF THIS PROCEDURE MANUFACTURED ABILITY

(CO) POLYMERS ON BASIS OF VINYL UNITS AND YOUR USE IN ELEKTROLUMINESZIERENDEN ARRANGEMENTS

POLYMER MIXTURES WITH IMPROVED IMPACT STRENGTH

PREVENTION OF THE POLYMERIZATION OF ETHYLENISCH INSATIATED MONOMERS

PHOTO INITIATOR SYSTEM CONTAINING A TITANOCEN

BY LOWMOLECULAR MARK IMIDE COPOLYMERS HYDROPHOBE STABILIZED KATIONI DISPERSIONS FOR THE PAPER GLUING

PROCEDURE FOR THE PRODUCTION POLYMERS OF A CONVERSION PRODUCT

PHOTOACTIVE POLYMER

ORGANIC INITIATORS AND YOUR USE FOR THE POLYMERIZATION OF INSATIATED MONOMERS

PROCEDURE FOR THE PRODUCTION OF POLYMERE PARTICLES

ELECTRICAL ISOLATION FILM AND CONDENSER

PROCEDURE FOR THE PRODUCTION OF POLYMERS PARTICLES

AMINE THIOLKETTENÜBERTRAGUNGSMITTEL

PROCEDE D'HYDROGENATION SELECTIVE DE (C) POLYMERE OF INSATURES

PROCEDE D'HYDROGENATION SELECTIVE DE (C) POLYMERE OF INSATURES

PROCEDE D'HYDROGENATION SELECTIVE DE (C) POLYMERE OF INSATURES

PROCEDE D'HYDROGENATION SELECTIVE DE (C) POLYMERE OF INSATURES

PROCEDE D'HYDROGENATION SELECTIVE DE (C) POLYMERE OF INSATURES