DE1720277A1 - Verfahren zur Herstellung von filmbildenden waessrigen Copolymerdispersionen - Google Patents
Verfahren zur Herstellung von filmbildenden waessrigen CopolymerdispersionenInfo
- Publication number
- DE1720277A1 DE1720277A1 DE19671720277 DE1720277A DE1720277A1 DE 1720277 A1 DE1720277 A1 DE 1720277A1 DE 19671720277 DE19671720277 DE 19671720277 DE 1720277 A DE1720277 A DE 1720277A DE 1720277 A1 DE1720277 A1 DE 1720277A1
- Authority
- DE
- Germany
- Prior art keywords
- octene
- vinyl
- film
- preparation
- amounts
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000006185 dispersion Substances 0.000 title claims description 13
- 229920001577 copolymer Polymers 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 12
- 238000002360 preparation method Methods 0.000 title claims description 4
- 229920001567 vinyl ester resin Polymers 0.000 claims description 18
- 239000003054 catalyst Substances 0.000 claims description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 8
- 239000000084 colloidal system Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- 239000012190 activator Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 150000002763 monocarboxylic acids Chemical class 0.000 claims 3
- 238000007334 copolymerization reaction Methods 0.000 claims 1
- 230000007717 exclusion Effects 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 description 9
- -1 aliphatic monocarboxylic acid Chemical class 0.000 description 8
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- 235000005985 organic acids Nutrition 0.000 description 3
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- DYBIGIADVHIODH-UHFFFAOYSA-N 2-nonylphenol;oxirane Chemical compound C1CO1.CCCCCCCCCC1=CC=CC=C1O DYBIGIADVHIODH-UHFFFAOYSA-N 0.000 description 2
- 239000004160 Ammonium persulphate Substances 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000004141 Sodium laurylsulphate Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 2
- 235000019395 ammonium persulphate Nutrition 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 150000004668 long chain fatty acids Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 description 2
- 239000011736 potassium bicarbonate Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- YAJYJWXEWKRTPO-UHFFFAOYSA-N 2,3,3,4,4,5-hexamethylhexane-2-thiol Chemical compound CC(C)C(C)(C)C(C)(C)C(C)(C)S YAJYJWXEWKRTPO-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- WERKSKAQRVDLDW-ANOHMWSOSA-N [(2s,3r,4r,5r)-2,3,4,5,6-pentahydroxyhexyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO WERKSKAQRVDLDW-ANOHMWSOSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000012986 chain transfer agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- MEGHWIAOTJPCHQ-UHFFFAOYSA-N ethenyl butanoate Chemical compound CCCC(=O)OC=C MEGHWIAOTJPCHQ-UHFFFAOYSA-N 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 150000004978 peroxycarbonates Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- KOZCZZVUFDCZGG-UHFFFAOYSA-N vinyl benzoate Chemical compound C=COC(=O)C1=CC=CC=C1 KOZCZZVUFDCZGG-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Description
PATENTANWÄLTE
DR.-ING. VON KREISLER DR.-ING. SCHÖNWALD 1720277
DR.-ING. TH. MEYER DR. FUES
KÖLN 1, DEICHMANNHAUS
Köln, den 1.6,1967 Ke/Ax
BP Chemicals (U.K.) Limited, Devonshire House. Mayfair Place, Piccadilly, London, W«1 (England).
Verfahren zur Herstellung von filmbildenden wäßrigen
Copolymerdispersionen
Die Erfindung betrifft ein Verfahren zur Herstellung von filmbildenden wässrigen Dispersionen von Oopolymeren von
Vinylestern von organischen Säuren. Sie betrifft insbesondere wässrige Dispersionen von Copolymeren von Vinylestern
von organischen Säuren mit Octen-1, die so hergestellten
Dispersionen und die daraus gebildeten Filme.
Das Verfahren gemäß der Erfindung zur Herstellung von filmbildenden
wässrigen Dispersionen von Oopolymeren von Vinylestern von organischen Säuren ist dadurch gekennzeichnet,
daß man einen Vinylester einer gesättigten Monocarbonsäure
und Octen-1 in wässriger Dispersion in Gegenwart eines freie Radikale bildenden Katalysators und eines oberflächenaktiven
Mittels und/oder eines Schutzkolloids copolymerisiert.
Die Säurekomponente des Vinylesters ist am vorteilhaftesten von einer linearen oder verzweigten aliphatischen Monocarbonsäure
abgeleitet. Bevorzugt werden Säuren mit 1-7 C-Atomen. Einige Beispiele dieser Ester sind Vinylacetat, Vinylpropionat,
Vinylbutyrat und Vinylbenzoat. Die Erfindung ist insbesondere auf die Vinylester von Essigsäure oder substituierter
Essigsäure, z.B. Vinylester von Trimethylessig-
209813/1321
mm 2 —
säure, gerichtet. Gemische von Vinylestern oder Gemische .
mit anderen copolymerisierbaren ungesättigten Verbindungen, z.B. Acrylsäure, Methacrylsäure, Fumarsäure oder Itaconsäure,
oder mit Estern dieser Säuren oder Viny!halogeniden sind ebenfalls geeignet.
Freie Radikale bildende Katalysatoren sind allgemein bekannt. Alle diese Katalysatoren können für das Verfahren
gemäß der Erfindung verwendet werden. Der Katalysator kann aus einer Einzelverbindung oder aus mehreren Verbindungen,
die in Kombination als System wirksam sind, bestehen und wasserlöslich oder öllöslich sein. Einige Beispiele sind
die organischen und anorganischen Peroxyde, Persulfate und Peroxycarbonate, z.B. Ammoniumpersulfat, und die Dialkylpercarbonate,
z.B. Diisopropylperoxydicarbonat, Azoverbindungen, z.B. Azo-bis-isobutyronitril, und Redoxsysteme, z.B.
Ammoniumpersulfat/Natriummetabisulfit, a-Cumolhydroperöxyd/
Eisen(II)-Komplex, Benzoylperoxyd/Eisen(Il)-Komplex und
Alkalichlorat/Alkalisulfit.
Als oberflächenaktive Mittel eignen sich beliebige handelsübliche ionaktive oder nichtionogene oberflächenaktive
Produkte, die allein oder als Gemische verwendet werden können. Einige Beispiele von ionischen oberflächenaktiven
Mitteln sind die anionaktiven Mittel, z.B. die Alkalisalze von Alkarylsulfonsäuren (z.B. Natriumdodecyldiphenylätherdisulfonat),
Alkalisalze von Sulfaten von langkettigen Fettsäuren (z.B. Natriumlaurylsulfat) und Ester von Natriumsulf
obernsteinsäure (z.B. Natriumdioctylsulf osuccinat),und abs
nichtionogenenoberflächenaktivenMittel, z.B. Äthylenoxyd-Nonylphenol-Kondensate,
und Monoester von langkettigen Fettsäuren mit mehrwertigen Alkoholen (z.B. Sorbitmonooleat).
Die Verwendung von Schutzkolloiden in wässrigen freiradikalischen Polymerisationssystemen ist allgemein bekannt. Alle
diese Schutzkolloide können für die Zwecke der Erfindung
209813/1321
verwendet werden. Geeignet sind beispielsweise Polyvinylalkohole und wasserlösliche Cellulosederivate (z.B. Celluloseäther,
wie Ä'thylcellulose).
Aktivatoren für den Katalysator können anwesend sein. Geeignet als Aktivatoren sind beispielsweise Spuren von Übergangsmetallsalzen,
z.B. Eisen(II)-sulfat.
Im Polymerisationsgemisch kann ein Kettenüberträger vorhanden sein. Geeignet als Kettenüberträger sind langkettige
wasserunlösliche aliphatische Mercaptane, z.B. n- oder tert-Dodecylmercaptan.
Die Polymerisation kann durchgeführt werden, indem die Reaktionsteilnehmer unter Bildung einer Emulsion oder Suspension
in Wasser dispergiert werden. Das Gewichtsverhältnis von Wasser zum Gesamtgewicht der eingesetzten Monomeren
liegt zweckmäßig im Bereich von 10:1 bis 1:2, vorzugsweise bei etwa 1:1. Das Gewichtsverhältnis des Vinylesters zum
eingesetzten Octen-1 sollte im Bereich von 99s1 bis 70:30,
vorzugsweise im Bereich von 90:10 bis 70:30 liegen. Am vorteilhaftesten beträgt die Katalysatormenge 0,1-2,0%, vorzugsweise
0,5—1,0$, bezogen auf das Gewicht der eingesetzten
Monomeren. Das Gewicht des oberflächenaktiven Mittels und/ oder Schutzkolloids liegt vorzugsweise im Bereich von 0,5 bis
6$, bezogen auf das Gewicht der Monomeren, und das Gewicht
des Aktivators des Katalysators liegt vorzugsweise im Bereich von 0,01-1,0>fc.
Das Verfahren kann chargenweise, halbkontinuierlich oder kontinuierlich durchgeführt werden, wobei der Vinylester
oder das Octen-1 oder beide zudosiert werden.
Der Druck, bei dem die Polymerisation durchgeführt wird,
ist nicht entscheidend wichtig, jedoch muß er so hoch sein, dal? die Reaktionsteilnehmer in der Flüssigphase gehalten
worden. Bevorzugt wird Kormaldruck, um die Notwendigkeit der Verwendung teurer Druckapparaturen zu vermeiden.
209813/1321
Die Temperatur ist ebenfalls nicht entscheidend wichtig.
Geeignet sind beliebige Temperaturen, bei denen die Reaktion mit genügender Geschwindigkeit verläuft· Diese Temperatur
hängt von dem verwendeten Katalysatorsystem ab und liegt
vorzugsweise im Bereich von 40-100°C·
Copolymere, die 10 bis etwa 15 Grew#~56 Octen-1 enthalten»
können hergestellt werden, wenn die Polymerisation bei einer Temperatur im Bereich von 75-950C, vorzugsweise von
80-850C durchgeführt wird. .
Der pg-Wert der Dispersion sollte im Bereich von 4,0-7»5
gehalten werden, um eine Hydrolyse des Vinylesters zu ver«r
melden* Zu diesem Zweck kann ein geeigneter Puffer, z.B»
Kalium- oder Natriumbicarbonat, zugesetzt werden«
Die Polymerisation wird zweckmäßig unter Ausschluß von Sauerstoff durchgeführt· Nicht polymerisierter Vinylester
und Octen-1 können nach der Polymerisation entfernt werden, indem man beispielsweise den Latex destilliert oder ein
Inertgas, z.B. Stickstoff, durch den Latex bläst, während dieser bei erhöhter Temperatur gehalten wird·
Ein Umsatz von Monomeren zu Polymerisat über 75?6 kann erreicht
werden, wenn bei den bevorzugten Bedingungen, insbesondere bei den bevorzugten Verhältnissen der Monomeren
und Katalysatorkonzentrationen gearbeitet wird. .
Stabile wässrige filmbildende Dispersionen von Copolymeren des Vinylesters mit Octen-1 mit einem Feststoffgehalt von
mehr als 25$ können durch entsprechende Einstellung der
Anteile des Vinylesters und des Octen-1 zum vorhandenen Wasser und der Polymerisationsbedingungen erhalten werden.
209813/1321
Vinylacetat
Octen-1
Natriumlaurylsulfat ("Empicol LXV")
Ä'thylenoxyd-Nonylphenol-Kondensat (»lergitol NP 40»)
A*thy1enoxyd-NonyIpheno1-Kondensat
(»Dergitol NP 14")
675 g
225 g
18 g
18 g >A
Kaliumbicarbonat
Destilliertes Wasser
Destilliertes Wasser
18 g
4,5g 1150 ml
6,0 g Ammoniumpersulfat in 100 ml destilliertem Wasser B 6,0 g Ammoniumpersulfat in 100 ml destilliertem Wasser C
Der Ansatz A wurde in das Polymerisationsgefäß gegeben und 30 Minuten bei 600O unter Stickstoff gerührt. Die Otemperatur
wurde dann auf 850C erhöht, worauf der Katalysator B
zugesetzt wurde. Nach 7-stündigem Erhitzen wurde die Lösung C
in den Reaktor gegeben. Die Polymerisation wurde weitere 16 Stunden bei 85°0 durchgeführt. Das nicht umgesetzte Monomere
wurde dann unter vermindertem Druck abdestilliert und der Einsatz der Abkühlung überlassen. Der Umsatz von Monomeren
zu Polymerisat betrug 87,5 Gew.-^, Die Analyse des
Copolymeren durch kernmagnetische Resonanz ergab, daß es 19,0 Gew.-Teile Octen-1 und 81,0 G-ew.-Teile Vinylacetat
enthielt.
Die erhaltene Oopolymerdispersion hatte einen Feststoffgehalt von 34»89έ und trocknete nach dem Auftrag auf eine Glasfläche
an der Luft unter Bildung eines Films.
209813/ 1321
Claims (8)
1.) Verfahren zur Herstellung von fUmbildenden wäßrigen
Copolymerdispersionen, dadurch gekennzeichnet, daß man
Vinylester gesättigter Monocarbonsäuren und Octen-1, gegebenenfalls im Gemisch mit anderen copolymerislerbaren
ungesättigten Verbindungen, in wäßriger Dispersion in Gegenwart von freie Radikale bildenden Katalysatoren und
oberflächenaktiven Mitteln und/oder Schutzkolloiden copolymerisiert.
2.) Verfahren nach Anspruch 1, dadurch gekennzeichnet« daß
man Vinylacetat und Octen-1 copolymerisiert.
j5.) Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet«
daß man das Gewichtsverhältnis des Vinylesters zum Octen-1 im Bereich von 90:10 bis 70OO wählt.
4.) Verfahren nach Anspruch 1 bis J, dadurch gekennzeichnet«
daß man die Copolymerisation mit Katalysatormengen von 0,5 bis 1 %, Mengen des oberflächenaktiven Mittels und/oder
Schutzkolloids von 0,5 bis 6 % und Aktivatormengen von 0,01
bis 1 %, jeweils bezogen auf das Gewicht der Monomeren« durchführt.
5.) Verfahren nach Anspruch 1 bis 4« dadurch gekennzeichnet« daß man im Temperaturbereich zwischen 40 und 1000C arbeitet.
6.) Verfahren nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß man unter Ausschluß von Sauerstoff arbeitet.
7.) Filmformende wäßrige Dispersion von Copolymeren von Vinylestern gesättigter Monocarbonsäuren mit Octen-1.
8.) Copolymere aus Vinylestern gesättigter Monocarbonsäuren und Octen-1.
209813/1321
Applications Claiming Priority (1)
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GB2585966A GB1104536A (en) | 1966-06-10 | 1966-06-10 | A process for the production of film forming aqueous dispersions of copolymers of vinyl esters of organic acids |
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DE19671720277 Pending DE1720277A1 (de) | 1966-06-10 | 1967-06-07 | Verfahren zur Herstellung von filmbildenden waessrigen Copolymerdispersionen |
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EP2108662A1 (de) | 2008-04-10 | 2009-10-14 | Hexion Specialty Chemicals Research Belgium S.A. | Copolymerisierungsverfahren in 1-Alkene- und Vinylester-Emulsion mit hoher Konvertierung |
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1966
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