NO870167L - Konsentrerte emulsjoner av etylen-vinylesterkopolymere. - Google Patents

Konsentrerte emulsjoner av etylen-vinylesterkopolymere.

Info

Publication number
NO870167L
NO870167L NO87870167A NO870167A NO870167L NO 870167 L NO870167 L NO 870167L NO 87870167 A NO87870167 A NO 87870167A NO 870167 A NO870167 A NO 870167A NO 870167 L NO870167 L NO 870167L
Authority
NO
Norway
Prior art keywords
ethylene
vinyl ester
ester copolymers
concentrated emulsions
emulsions
Prior art date
Application number
NO87870167A
Other languages
English (en)
Other versions
NO177754B (no
NO870167D0 (no
NO177754C (no
Inventor
Michael Muller
Horst Pennewiss
Jurgen Gebhardt
Original Assignee
Roehm Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roehm Gmbh filed Critical Roehm Gmbh
Publication of NO870167D0 publication Critical patent/NO870167D0/no
Publication of NO870167L publication Critical patent/NO870167L/no
Publication of NO177754B publication Critical patent/NO177754B/no
Publication of NO177754C publication Critical patent/NO177754C/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/146—Macromolecular compounds according to different macromolecular groups, mixtures thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/192—Macromolecular compounds
    • C10L1/195—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/192—Macromolecular compounds
    • C10L1/195—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C10L1/196—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and a carboxyl group or salts, anhydrides or esters thereof homo- or copolymers of compounds having one or more unsaturated aliphatic radicals each having one carbon bond to carbon double bond, and at least one being terminated by a carboxyl radical or of salts, anhydrides or esters thereof
    • C10L1/1963—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and a carboxyl group or salts, anhydrides or esters thereof homo- or copolymers of compounds having one or more unsaturated aliphatic radicals each having one carbon bond to carbon double bond, and at least one being terminated by a carboxyl radical or of salts, anhydrides or esters thereof mono-carboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/192—Macromolecular compounds
    • C10L1/195—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C10L1/197—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and an acyloxy group of a saturated carboxylic or carbonic acid
    • C10L1/1973—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derived from monomers containing a carbon-to-carbon unsaturated bond and an acyloxy group of a saturated carboxylic or carbonic acid mono-carboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/236—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof
    • C10L1/2364—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof homo- or copolymers derived from unsaturated compounds containing amide and/or imide groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/236—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof
    • C10L1/2366—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof homo- or copolymers derived from unsaturated compounds containing amine groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/234—Macromolecular compounds
    • C10L1/236—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof
    • C10L1/2368—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds derivatives thereof homo- or copolymers derived from unsaturated compounds containing heterocyclic compounds containing nitrogen in the ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Emergency Medicine (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Lubricants (AREA)
  • Colloid Chemistry (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Paints Or Removers (AREA)
NO870167A 1986-04-19 1987-01-15 Konsentrert emulsjon inneholdende en etylen-vinylester-kopolymer og anvendelse av emulsjonen som flytforbedrer for råolje, vakuumgassolje og middeldestillater NO177754C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3613247A DE3613247C2 (de) 1986-04-19 1986-04-19 Konzentrierte Emulsionen aus Ethylen-Vinylacetat-Copolymeren, Verfahren zu deren Herstellung und deren Verwendung als Stockpunktverbesserer

Publications (4)

Publication Number Publication Date
NO870167D0 NO870167D0 (no) 1987-01-15
NO870167L true NO870167L (no) 1987-10-20
NO177754B NO177754B (no) 1995-08-07
NO177754C NO177754C (no) 1995-11-15

Family

ID=6299049

Family Applications (1)

Application Number Title Priority Date Filing Date
NO870167A NO177754C (no) 1986-04-19 1987-01-15 Konsentrert emulsjon inneholdende en etylen-vinylester-kopolymer og anvendelse av emulsjonen som flytforbedrer for råolje, vakuumgassolje og middeldestillater

Country Status (12)

Country Link
US (1) US4906682A (no)
JP (1) JPH089665B2 (no)
AU (1) AU587323B2 (no)
BE (1) BE906158A (no)
CA (1) CA1286432C (no)
DE (1) DE3613247C2 (no)
FR (1) FR2603591B1 (no)
GB (1) GB2189251B (no)
IT (1) IT1208394B (no)
NL (1) NL8700919A (no)
NO (1) NO177754C (no)
SU (1) SU1690546A3 (no)

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DE3725059A1 (de) * 1987-07-29 1989-02-09 Roehm Gmbh Polymere fliessverbesserer fuer mitteldestillate
DE3843922A1 (de) * 1988-12-24 1990-06-28 Hoechst Ag Neue copolymere, deren mischungen mit poly(meth)acrylsaeureestern und deren verwendung zur verbesserung der fliessfaehigkeit von rohoelen in der kaelte
US5349019A (en) * 1988-12-24 1994-09-20 Hoechst New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils
DE3905681A1 (de) * 1989-02-24 1990-08-30 Basf Ag Konzentrierte mischungen von pfropfcopolymerisaten aus estern von ungesaettigten saeuren und ethylen-vinylester-copolymerisaten
DE3922146A1 (de) * 1989-07-06 1991-01-17 Roehm Gmbh Additive fuer dieselkraftstoff
GB9213871D0 (en) † 1992-06-30 1992-08-12 Exxon Chemical Patents Inc Oil additives and compositions
DE4426003A1 (de) * 1994-07-22 1996-01-25 Basf Ag Umsetzungsprodukte von Polyolefinen mit Vinylestern und ihre Verwendung als Kraft- und Schmierstoffadditive
US5851429A (en) * 1996-04-08 1998-12-22 The Lubrizol Corporation Dispersions of waxy pour point depressants
CN1063218C (zh) * 1995-11-29 2001-03-14 鲁布里佐尔公司 蜡状倾点下降剂的分散体
GB9702238D0 (en) * 1997-02-04 1997-03-26 Bp Chem Int Ltd Compositions
GB2336368B (en) * 1997-02-04 2001-06-27 Bp Chem Int Ltd Compositions
DE19739271A1 (de) * 1997-09-08 1999-03-11 Clariant Gmbh Additiv zur Verbesserung der Fließfähigkeit von Mineralölen und Mineralöldestillaten
DE19823565A1 (de) * 1998-05-27 1999-12-02 Clariant Gmbh Mischungen von Copolymeren mit verbesserter Schmierwirkung
EP1159374A4 (en) * 1998-12-04 2004-08-04 Bj Services Co MODIFIERS OF COLD PARAFFIN CRYSTALS
DE10015533A1 (de) * 1999-11-30 2001-06-28 Rohmax Additives Gmbh Blockcopolymere sowie Verfahren zur Hestellung und Verwendung
DE10249294A1 (de) * 2002-10-22 2004-05-13 Rohmax Additives Gmbh Stabile Polymerdispersionen und Verfahren zur Herstellung
DE10249292A1 (de) * 2002-10-22 2004-05-13 Rohmax Additives Gmbh Polymerdispersionen mit geringer Viskosität und Verfahren zur Herstellung
DE10249295A1 (de) * 2002-10-22 2004-05-13 Rohmax Additives Gmbh Polymerdispersionen mit hoher Stabilität und Verfahren zur Herstellung
FR2859211B1 (fr) * 2003-08-28 2006-01-21 Ceca Sa Compositions sous forme d'emulsions stables, leurs preparations et leurs utilisation pour l'abaissement du point d'ecoulement des huiles brutes et l'inhibition du depot de paraffines
DE10349851B4 (de) * 2003-10-25 2008-06-19 Clariant Produkte (Deutschland) Gmbh Kaltfließverbesserer für Brennstofföle pflanzlichen oder tierischen Ursprungs
DE10349850C5 (de) * 2003-10-25 2011-12-08 Clariant Produkte (Deutschland) Gmbh Kaltfließverbesserer für Brennstofföle pflanzlichen oder tierischen Ursprungs
DE10356595A1 (de) 2003-12-04 2005-06-30 Basf Ag Brennstoffölzusammensetzungen mit verbesserten Kaltfließeigenschaften
DE10357880B4 (de) * 2003-12-11 2008-05-29 Clariant Produkte (Deutschland) Gmbh Brennstofföle aus Mitteldestillaten und Ölen pflanzlichen oder tierischen Ursprungs mit verbesserten Kälteeigenschaften
DE10357878C5 (de) * 2003-12-11 2013-07-25 Clariant Produkte (Deutschland) Gmbh Brennstofföle aus Mitteldestillaten und Ölen pflanzlichen oder tierischen Ursprungs mit verbesserten Kälteeigenschaften
DE10357877B4 (de) * 2003-12-11 2008-05-29 Clariant Produkte (Deutschland) Gmbh Brennstofföle aus Mitteldestillaten und Ölen pflanzlichen oder tierischen Ursprungs mit verbesserten Kälteeigenschaften
JP5038650B2 (ja) * 2006-04-21 2012-10-03 東邦化学工業株式会社 原油用流動性改良剤
EP1923454A1 (de) 2006-11-17 2008-05-21 Basf Se Kaltfliessverbesserer
US7842738B2 (en) * 2007-10-26 2010-11-30 Conocophillips Company High polymer content hybrid drag reducers
WO2009092730A1 (de) * 2008-01-22 2009-07-30 Basf Se Herstellung von additivgemischen
EP2305753B1 (en) 2009-09-25 2012-02-29 Evonik RohMax Additives GmbH A composition to improve cold flow properties of fuel oils
US9574146B2 (en) * 2012-12-18 2017-02-21 Basf Se Polymeric compositions composed of ethylene-vinyl ester copolymers alkyl (meth)acrylates, processes for production thereof and use thereof as pour point depressants for crude oils, mineral oils or mineral oil products
RU2656213C2 (ru) * 2013-02-04 2018-06-01 Эвоник Ойль Эддитифс Гмбх Улучшитель текучести на холоде, имеющий широкую применимость в дизельном минеральном топливе, биодизеле и их смесях
CN107108990A (zh) 2014-10-13 2017-08-29 艾利丹尼森公司 乙烯醋酸乙烯酯/丙烯聚合乳液和产品及相关方法
ITUB20156295A1 (it) * 2015-12-03 2017-06-03 Versalis Spa Emulsioni acquose contenenti copolimeri etilene-vinilacetato, loro procedimento di preparazione e loro impiego come additivi anti-gelificanti di greggi petroliferi.
DE102015226635A1 (de) 2015-12-23 2017-06-29 Clariant International Ltd Polymerzusammensetzungen mit verbesserter Handhabbarkeit
US10759989B2 (en) 2016-01-06 2020-09-01 Ecolab Usa Inc. Temperature-stable paraffin inhibitor compositions
US10876036B2 (en) 2016-01-06 2020-12-29 Championx Usa Inc. Temperature-stable paraffin inhibitor compositions
US10465854B2 (en) 2016-04-07 2019-11-05 Ecolab Usa Inc. Temperature-stable paraffin inhibitor compositions
US10858575B2 (en) 2017-06-02 2020-12-08 Championx Usa Inc. Temperature-stable corrosion inhibitor compositions and methods of use
RU2704480C1 (ru) * 2018-12-04 2019-10-29 Самарин Александр Владимирович Способ получения вакуумных дистиллятных фракций с улучшенными низкотемпературными свойствами
WO2023083941A1 (en) 2021-11-15 2023-05-19 Evonik Operations Gmbh Ethylene vinyl acetate-based dispersions suitable as pour point depressants with improved performance and stability

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US3048479A (en) * 1959-08-03 1962-08-07 Exxon Research Engineering Co Ethylene-vinyl ester pour depressant for middle distillates
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US3904385A (en) * 1972-05-08 1975-09-09 Texaco Inc Polyacrylates and waxy residual fuel compositions thereof
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DE2905954C2 (de) * 1979-02-16 1982-10-28 Röhm GmbH, 6100 Darmstadt Konzentrierte Polymerisatemulsionen als Viskositätsindexverbesserer für Mineralöle
US4476270A (en) * 1980-06-06 1984-10-09 E. I. Du Pont De Nemours And Company Process for making high solids acrylic dispersion lacquer
JPS5840391A (ja) * 1981-09-03 1983-03-09 Sumitomo Chem Co Ltd 燃料油の低温流動性改良方法
JPS6017476B2 (ja) * 1982-09-20 1985-05-02 日本合成化学工業株式会社 石油類用低温流動性改善剤
FR2572410B1 (fr) * 1984-10-25 1987-09-04 Elf Aquitaine Copolymeres d'ethylene greffes utilisables notamment comme additifs pour l'inhibition du depot de paraffines dans les huiles brutes et compositions renfermant les huiles et lesdits additifs
US4611031A (en) * 1985-01-28 1986-09-09 Rohm And Haas Company Process for the preparation of a compatibilizer for concentrated polymer blends and compatibilizer product

Also Published As

Publication number Publication date
GB8709156D0 (en) 1987-05-20
AU7170687A (en) 1987-10-22
SU1690546A3 (ru) 1991-11-07
NO177754B (no) 1995-08-07
JPH089665B2 (ja) 1996-01-31
BE906158A (fr) 1987-04-16
DE3613247A1 (de) 1987-10-22
GB2189251A (en) 1987-10-21
IT1208394B (it) 1989-06-12
AU587323B2 (en) 1989-08-10
GB2189251B (en) 1989-11-29
FR2603591B1 (fr) 1993-02-05
IT8767329A0 (it) 1987-04-17
DE3613247C2 (de) 1995-04-27
US4906682A (en) 1990-03-06
NO870167D0 (no) 1987-01-15
JPS62252431A (ja) 1987-11-04
CA1286432C (en) 1991-07-16
NL8700919A (nl) 1987-11-16
NO177754C (no) 1995-11-15
FR2603591A1 (fr) 1988-03-11

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