NO136672B - - Google Patents
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- NO136672B NO136672B NO364871A NO364871A NO136672B NO 136672 B NO136672 B NO 136672B NO 364871 A NO364871 A NO 364871A NO 364871 A NO364871 A NO 364871A NO 136672 B NO136672 B NO 136672B
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- powder
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- plastic
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- 239000000843 powder Substances 0.000 claims description 42
- 239000006185 dispersion Substances 0.000 claims description 24
- 229920003023 plastic Polymers 0.000 claims description 19
- 239000004033 plastic Substances 0.000 claims description 19
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 12
- 239000007859 condensation product Substances 0.000 claims description 9
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 6
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 5
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 230000029142 excretion Effects 0.000 description 4
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011398 Portland cement Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- GLVVKKSPKXTQRB-UHFFFAOYSA-N ethenyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC=C GLVVKKSPKXTQRB-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000012874 anionic emulsifier Substances 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 description 1
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/16—Powdering or granulating by coagulating dispersions
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/122—Pulverisation by spraying
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Structural Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Redispergerbare, pulverformige plastmaterialer fremstilles Redispersible, powdery plastic materials are produced
ved forstøvning av plastmaterial—dispersjoner med hjelp av en én-komponent- eller tokomponentdyse i en varm lufststrøm. Derved inntrer, når man går ut fra plastdispersjoner hvis polymere har lavt mykningspunkt, allerede ved forstøvningeri en sammenklumpning av partiklene, eller det dannede pulver er tilbøyelig til å danne klumper ved innvirkning av varme og/eller trykk. Derved oppheves redispergerbarheten og risleevnen for pulveret. when atomizing plastic material—dispersions using a one-component or two-component nozzle in a hot air stream. Thereby, when starting from plastic dispersions whose polymers have a low softening point, agglomeration of the particles already occurs during atomization, or the formed powder tends to form lumps under the influence of heat and/or pressure. Thereby, the redispersibility and trickling ability of the powder is cancelled.
En fremgangsmåte for forbedring av slike, dispersjonspulvere består i å tilsette store mengder beskyttelseskolloider under poly-merisasjonen eller før forstøvningen. Derved.forbedres riktignok dispergerbarheten, men andre egenskaper for.pulveret blir dårligere, og eksempelvis nedsettes vannbestandigheten sterkt. Videre er det kjent å tilsette inerte stoffer til dispersjonen før forstøvningen eller til pulveret før tørkingen. Noen virkning gir slike tilsatsstoffer bare når de anvendes i store mengder, hvor- A method for improving such dispersion powders consists in adding large amounts of protective colloids during polymerization or before atomization. Thereby, the dispersibility is indeed improved, but other properties of the powder become worse, and, for example, the water resistance is greatly reduced. Furthermore, it is known to add inert substances to the dispersion before atomization or to the powder before drying. Such additives only have an effect when they are used in large quantities, where
ved plastpulverets egenskaper sterkt påvirkes. Ved anvendelse av små mengder omhylles den inerte forbindelse av plastmaterialet, og tilsatsen gir ingen virkning. by the plastic powder's properties are strongly affected. When small quantities are used, the inert compound is enveloped by the plastic material, and the additive has no effect.
Vanligvis innarbeides disse plastpulvere som tilsatsmaterialer for hydraulisk avbindende masser. Derved viser det seg ofte at trykkfastheten, bøyestrekkfastheten og klebefastheten for massen ikke er tilstrekkelig og påvirkes dertil i negativ retning ved tilsetningen av inertstoffer og beskyttelseskolloider. Usually, these plastic powders are incorporated as additives for hydraulic binding compounds. As a result, it often turns out that the compressive strength, bending tensile strength and adhesive strength of the mass are not sufficient and are affected in a negative direction by the addition of inert substances and protective colloids.
I henhold til den foreliggende oppfinnelse anvendes vann-løselige, sulfonatgruppeholdige kondensasjonsprodukter av melamin og formaldehyd, i hvilke melamin, formaldehyd og alkalisulfonat foreligger i et molforhold på 0,375-3:3:0,375-3, fortrinnsvis 1:3:1, som dispergerings- og anti-agglomereringsmiddel i dispersjoner av plast med et mykningspunkt av 0-40°C, hvilke dispersjoner for-støvningstørres til et frittrislende, vanndispergerbart pulver. According to the present invention, water-soluble, sulfonate group-containing condensation products of melamine and formaldehyde, in which melamine, formaldehyde and alkali sulfonate are present in a molar ratio of 0.375-3:3:0.375-3, preferably 1:3:1, are used as dispersing and anti-agglomerating agent in dispersions of plastic with a softening point of 0-40°C, which dispersions are spray-dried into a free-flowing, water-dispersible powder.
Disse kondensasjonsprodukter anvendes i mengder på 2-30 vekt%, fortrinnsvis 5-19 vekt%, beregent på grunnlag, av dispersjonens fast-stoff innhold . These condensation products are used in amounts of 2-30% by weight, preferably 5-19% by weight, calculated on the basis of the solids content of the dispersion.
Fra søkerens norske patentskrift nr. 110.843 er det kjent å tilsette glycerolmonostearat til PVC-latexer som skal forstøvnings-tørkes. Disse latexer inneholder allerede et anionisk emulgerings-middel fra fremstillingsprosessen. Kombinasjonen av de to emulgeringsmidler forhøyer pulverets dispergerbarhet. Forstøvningen av PVC, som har et mykningspunkt av 70-80°C, byr ikke på de samme problemer som forstøvningen av polymerer med mykningspunkter under 4 0°C. Likevel forekommer det også ved PVC-pulvere en viss sammenklumpning som nødvendiggjør finmaling. Ved anvendelsen ifølge den foreliggende oppfinnelse av de nevnte kondensasjonsprodukter er det imidlertid ikke nødvendig å foreta noen finmaling, selv om det anvendes polymerer med lavt mykningspunkt. From the applicant's Norwegian patent document no. 110,843, it is known to add glycerol monostearate to PVC latexes which are to be spray-dried. These latexes already contain an anionic emulsifier from the manufacturing process. The combination of the two emulsifiers increases the dispersibility of the powder. The atomization of PVC, which has a softening point of 70-80°C, does not present the same problems as the atomization of polymers with softening points below 40°C. Nevertheless, a certain amount of clumping also occurs with PVC powders, which necessitates fine grinding. However, in the use according to the present invention of the aforementioned condensation products, it is not necessary to carry out any fine grinding, even if polymers with a low softening point are used.
Overraskende har det ved tilsetningen i henhold til den foreliggende oppfinnelse vist seg at en sammenklumpning (agglomerering) av pulveret forhindres, og at likeledes lagringsbestandigheten forbedres. Selv ved innvirkning av varme og trykk oppstår ingen klumper i pulveret, således^ at redispergerbarheten fullstendig opprettholdes og pulveret er frittrislende. Surprisingly, with the addition according to the present invention, it has been shown that clumping (agglomeration) of the powder is prevented, and that the storage stability is also improved. Even under the influence of heat and pressure, no lumps form in the powder, so that redispersibility is completely maintained and the powder is free-flowing.
Den angitte mykningstemperatur bestemmes i henhold til "Adhåsion" 1966, 3, sider 97-100. The indicated softening temperature is determined according to "Adhåsion" 1966, 3, pages 97-100.
Videre er det overraskende at-klebefastheten for hydraulisk avbindende masser, fremstilt med det nye vanndispergerbare pulver, ikke avtar. Det inntrer til og med en forbedring av trykkfastheten og bøyestrekkfastheten. Furthermore, it is surprising that the adhesive strength of hydraulic debonding masses, prepared with the new water-dispersible powder, does not decrease. There is even an improvement in compressive strength and flexural strength.
De vannløselige, sulfonatgruppeholdige dispergeringsmidler er anvendbare for mange dispersjonstyper. Eksempler på polymerer med den angitte lave. mykningstemperatur er copolymerer av vinyl-acetetat og/eller vinylklorid og ethylen, fortrinnvis med opp til 30 vekt% ethylen; vinylacetat og/eller vinylklorid og vinyllaurat med over 20 vekt% vinyllaurat; vinylacetat og acrylsyreestere med alkoholer som har en kjedelengde over 4 carbonatomer; og copolymere av vinylacetat,vinylpropionat og vinylversaticestere ("Versatic" er et handelsnavn). The water-soluble dispersants containing sulfonate groups are useful for many dispersion types. Examples of polymers with the indicated low. softening temperature are copolymers of vinyl acetate and/or vinyl chloride and ethylene, preferably with up to 30% by weight of ethylene; vinyl acetate and/or vinyl chloride and vinyl laurate with more than 20% by weight of vinyl laurate; vinyl acetate and acrylic acid esters with alcohols having a chain length of more than 4 carbon atoms; and copolymers of vinyl acetate, vinyl propionate and vinyl versatic esters ("Versatic" is a trade name).
Plastdispersjonene fremstilles i henhold til den kjente fremgangsmåte ved radikalpolymerisasjon av monomerene i vann i nærvær av emulgatorer og/eller beskyttelseskolloider, eventuelt regulatorer og puffersubstansér samt andre polymerisasjonshjelpe-stoffer. The plastic dispersions are produced according to the known method by radical polymerization of the monomers in water in the presence of emulsifiers and/or protective colloids, possibly regulators and buffer substances as well as other polymerization aids.
I henhold til den foreliggende oppfinnelse tilblandes poly-merisas jonsdispers jonene det sulfonatgruppeholdige kondensasjonsprodukt av melamin og formaldehyd, enten i pulverform eller fortrinnsvis i vandig løsning. Til slutt underkastes blandingen en kjent fremgangsmåte for forstøvningstørking. In accordance with the present invention, the sulfonate group-containing condensation product of melamine and formaldehyde is mixed with the polymerization ion dispersion, either in powder form or preferably in aqueous solution. Finally, the mixture is subjected to a known method of spray drying.
Kondensasjonsproduktet av melamin, formaldehyd og sulfonat kan være oppbygget som følger: The condensation product of melamine, formaldehyde and sulphonate can be structured as follows:
I tillegg til kondensasjonsproduktene kan det også være for-delaktig å tilsette beskyttelseskolloider som. f.eks. polyvinylalkohol, cellulosederivater og polyvinylpyrrolidon eller inertstoffer som eksempelvis kaolin, kritt, silicater, talkum, diatomé-jord, kiselsyre, barium- eller calciumsulfat i mengder på 5-50 vekt%, beregnet på grunnlag av plastpulver. Derved oppnås i mange tilfeller en ytterligere forbedring av lagringsbestandigheten. In addition to the condensation products, it can also be advantageous to add protective colloids such as e.g. polyvinyl alcohol, cellulose derivatives and polyvinylpyrrolidone or inert substances such as kaolin, chalk, silicates, talc, diatomaceous earth, silicic acid, barium or calcium sulphate in amounts of 5-50% by weight, calculated on the basis of plastic powder. Thereby, in many cases, a further improvement in storage stability is achieved.
De redispergerbare pulvere som oppnås i henhold til den foreliggende oppfinnelse, kan anvendes på alle kjente anvendelses-områder. En foretrukken anvendelse er tilsetning av disse pulvere for forbedring av hydrauliske avbindingsmasser i mengder på 2-25 vekt%, beregnet på grunnlag av andelen hydraulisk avbindingsbe-standdel. The redispersible powders obtained according to the present invention can be used in all known areas of application. A preferred application is the addition of these powders for the improvement of hydraulic debonding compounds in amounts of 2-25% by weight, calculated on the basis of the proportion of hydraulic debonding component.
Eksempler på slike hydrauliske avbindingsmasser er klebe-midler for fliser, sparkelmasser, edelpuss, klebepuss, betong-mørtel, utbedringsmørtel og betonggulvbeleggingsmasser.. Forbed-ringer oppnås fremfor alt med hensyn til trykkfasthet, klebefasthet og bøyestrekkfasthet. Eventuelt kan pulverne tilsettes midler for å forhindre skumdannelse. Slike antiskumningsmidler fremstilles eksempelvis ved at et silicon eller en alkohol påføres et porøst, inert materiale, og således kan flytende antiskumningsmidler til-føres i form av faste skumhindrende midler. Examples of such hydraulic binding compounds are adhesives for tiles, putty compounds, precious plaster, adhesive plaster, concrete mortar, remedial mortar and concrete floor covering compounds. Improvements are achieved above all with regard to compressive strength, adhesive strength and bending tensile strength. Optionally, agents can be added to the powders to prevent foaming. Such anti-foaming agents are produced, for example, by applying a silicone or an alcohol to a porous, inert material, and thus liquid anti-foaming agents can be supplied in the form of solid anti-foaming agents.
Eksempel 1 Example 1
a. En dispersjon med 50 vekt% faststoffinnhold på basis av en ethylen/vinylacetat-copolymer med 10 vekti ethylen ble forstøvet. Man fikk knapt fremstilt noe pulver fordi mer enn 80 % av co-polymeren klebet seg på apparaturens vegger. a. A dispersion with 50% by weight solids content based on an ethylene/vinyl acetate copolymer with 10% by weight of ethylene was atomized. Hardly any powder was produced because more than 80% of the co-polymer stuck to the walls of the apparatus.
b. Den samme dispersjon ble tilsatt 2 vekt%, beregnet på grunnlag av dispersjonens faststoffinnhold, av et melamin/formaldehyd/ natriumsulfonat-kondensasjonsprodukt (handelsnavn "Melment L 10") med et molforhold på 1 : 3 : l,i form av en 20%-ig vandig løsning. Utskillelsen av pulver beløp seg til 95%. Det således fremstilte pulver var godt redispergerbart og ga filmer som ikke oppløste seg ved kort tids lagring i vann. Videre oppviste pulveret god lagringsevne. Ved tilsetning av 10 vekt% aluminiumsilicat motsto pulveret også lagring ved forhøyet temperatur og trykk. b. To the same dispersion was added 2% by weight, calculated on the basis of the solids content of the dispersion, of a melamine/formaldehyde/sodium sulphonate condensation product (trade name "Melment L 10") with a molar ratio of 1 : 3 : 1, in the form of a 20 % aqueous solution. The excretion of powder amounted to 95%. The powder produced in this way was easily redispersible and produced films which did not dissolve upon short-term storage in water. Furthermore, the powder showed good storability. By adding 10% by weight of aluminum silicate, the powder also resisted storage at elevated temperature and pressure.
Et klebemiddel for fliser bestående av 30 vekt% Portlandcement og 70 vekt% finkornet kvartssand ble tilsatt 6 vekt% av et således fremstilt pulver. Ved hjelp ay klebemidlet klebet keramiske fliser utmerket på tre, betong eller puss. An adhesive for tiles consisting of 30% by weight of Portland cement and 70% by weight of fine-grained quartz sand was added to 6% by weight of a powder thus prepared. Using the ay adhesive, ceramic tiles are excellently glued to wood, concrete or plaster.
Eksempel 2 Example 2
a. En plastdispersjon med 48 vekt% ■ faststoffinnhold på basis av en ethylen/vinylacetat-copolymer med 30 vekt% ethylen ble for-støvet efter tilsats av 10 vekt%, beregnet på grunnlag av dispersjonens faststoffinnhold, polyvinylalkohol med et forsåpnings-tall på 14 0 og en viskositet på 5 cP (for en 4%-ig løsning ved 20°C). Det ble produsert meget lite pulver. a. A plastic dispersion with a solids content of 48% by weight based on an ethylene/vinyl acetate copolymer with 30% by weight ethylene was atomized after the addition of 10% by weight, calculated on the basis of the solids content of the dispersion, polyvinyl alcohol with a saponification number of 14 0 and a viscosity of 5 cP (for a 4% solution at 20°C). Very little powder was produced.
b. Den samme dispersjon ble før forstøvningen i stedet for polyvinylalkoholen tilsatt 10 vekt% melamin/formaldehyd/natriumsulfonat-harpiks ("Melment F 20", molforhold av bestanddelene ca. 1:3:1) oppløst i vann. Utskillelsen av pulver beløp seg til 85% . c. Ved ytterligere tilsats av 10 vekt% polyvinylalkohol av den under pkt. a nevnte type fikk man en utskillelse på 98%. d. Plastdispersjonen ifølge pkt. a ble tilsatt 30 vekt% av melamin/formaldehyd/natriumsulfonat-harpiksen ("Melment F 20") b. Before the atomization, instead of the polyvinyl alcohol, 10% by weight of melamine/formaldehyde/sodium sulphonate resin ("Melment F 20", molar ratio of the components approx. 1:3:1) dissolved in water was added to the same dispersion. The excretion of powder amounted to 85%. c. With the further addition of 10% by weight polyvinyl alcohol of the type mentioned under point a, a separation of 98% was obtained. d. The plastic dispersion according to point a was added with 30% by weight of the melamine/formaldehyde/sodium sulphonate resin ("Melment F 20")
som beskrevet under pkt. b. Utskillelsen beløp seg til 98,3%. as described under point b. The excretion amounted to 98.3%.
Partikkelstørrelsen for plastpulveret ifølge pkt. b lå atter redispergeringen i vann" i området 5 til 20 pm. Partikkel-størrelsen for plastpulveret ifølge pkt. c og pkt. d var etter v: edispergeringen i vann maksimalt 5 pm. The particle size for the plastic powder according to point b, after the redispersion in water, was in the range 5 to 20 pm. The particle size for the plastic powder according to point c and point d was, after v: the redispersion in water, a maximum of 5 pm.
Gulvbeleggmasser av 25 vekt% Portlandcement og 7 5 vekt% axarpkantet sand med en kornstørrelse på 0,2 - 7 mm, som inneholdt 5 vekt%, beregent på grunnlag av sement, av plastpulveret ifølge pkt. c eller pkt. d, hadde en utmerket klebefasthet på de vanlige underlag og var elastisk formbare. Ved tilsats av pulveret ifølge pkt. b måtte det tilsettes 6 vekt% for å oppnå den samme effekt. Floor covering compounds of 25% by weight Portland cement and 75% by weight axarp-edged sand with a grain size of 0.2 - 7 mm, which contained 5% by weight, calculated on the basis of cement, of the plastic powder according to point c or point d, had an excellent adhesive strength on the usual substrates and were elastically malleable. When adding the powder according to point b, 6% by weight had to be added to achieve the same effect.
Fliser av størrelse 5 x 5 cm ble ved hjelp av et klebemiddel I:or fliser, hvilket klebemiddel besto av 30 vekt% Portlandcement, 70 vekt% finkornet kvartssand og 6 vekt%, beregnet på grunnlag av sement, av dispersjonspulver i henhold til pkt. 2a eller pkt. 2c, lagt på betong av kvalitetsklasse 300 DIN 1045. Etter 28 dagers utherding under vann ble det oppnådd en strekkfasthet for 2a. på Tiles of size 5 x 5 cm were made using an adhesive I:or tiles, which adhesive consisted of 30% by weight Portland cement, 70% by weight fine-grained quartz sand and 6% by weight, calculated on the basis of cement, of dispersion powder in accordance with section 2a or point 2c, laid on concrete of quality class 300 DIN 1045. After 28 days of curing under water, a tensile strength for 2a was achieved. on
4 kp/cm 2 og for 2c. på 8 kp/cm 2. 4 kp/cm 2 and for 2c. of 8 kp/cm 2.
En mørtel i henhold tii. DIN 1164 ble likeledes tilsatt for-skjellige plastpulvere i mengder på 10 vekt%, beregnet på grunnlag av sement (vann/sement-faktor 0,4 5). Etter 28 dagers tørr lagring ved 20°C og en relativ luftfuktighet på 65% (normalklima) ble følgende måleverdier bestemt på prøvestykker. For sammen-ligning ble også et prøvestykke uten plastpulver behandlet til-svarende . A mortar according to tii. DIN 1164 was likewise added with different plastic powders in quantities of 10% by weight, calculated on the basis of cement (water/cement factor 0.45). After 28 days of dry storage at 20°C and a relative humidity of 65% (normal climate), the following measurement values were determined on test pieces. For comparison, a test piece without plastic powder was also treated similarly.
Eksempel 3 Example 3
a. En plastdispersjon med 50 vekt% faststoffinnhold av en vinylacetat/vinyllaurat-copolymer med 25 vekt% vinyllaurat ble for-støvet. Utskillelsen beløp seg til ca. 50%. Pulveret hadde en meget sterk tendens til agglomerering. a. A plastic dispersion with 50% by weight solids content of a vinyl acetate/vinyl laurate copolymer with 25% by weight vinyl laurate was atomized. The excretion amounted to approx. 50%. The powder had a very strong tendency to agglomerate.
b. Plastdispersjonen ifølge pkt. 3a ble tilsatt 75 vekt% av en 20%-ig oppløsning av et melamin/formaldehyd/natriumsulfonat-kondensasjonsprodukt ("Melment L 300"). Blandingen ble forstøvet, og 94,5% av materialet ble oppnådd som pulver. Pulveret var frittrislende og godt redispergerbart til en maksimal partikkelstørrelse på- 10 pm. b. The plastic dispersion according to point 3a was added to 75% by weight of a 20% solution of a melamine/formaldehyde/sodium sulphonate condensation product ("Melment L 300"). The mixture was atomized, and 94.5% of the material was obtained as powder. The powder was free sprinkling and well redispersible to a maximum particle size of 10 µm.
Eksempel 4 Example 4
a. En 45%-ig dispersjon av en styren/butadien-copolymer med 60 vekt% styren ble forstøvet. Dette ga et pulverutbytte på 60,4%. a. A 45% dispersion of a styrene/butadiene copolymer with 60% by weight styrene was atomized. This gave a powder yield of 60.4%.
Pulveret kunne redispergeres, hvorved det ga en partikkelstørrelse på mellom 15 og 22 pm. The powder could be redispersed, whereby it gave a particle size of between 15 and 22 pm.
b. Ved tilsetning av 50 vekt% av en 20%-ig vandig løsning av "Melment F 10" til dispersjonen ifølge pkt. 4a ble det oppnådd en pulverutskillelse på 97,3%. Ved redispergering av dette pulver var partikkelstørrelsen 2 - 7 pm. b. By adding 50% by weight of a 20% aqueous solution of "Melment F 10" to the dispersion according to point 4a, a powder separation of 97.3% was achieved. When redispersing this powder, the particle size was 2-7 pm.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO76761959A NO136748C (en) | 1970-10-06 | 1976-06-09 | USE OF A REDISPERIBLE PLASTIC POWDER AS AN ADDITIONER FOR HYDRAULIC BINDING MASSES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702049114 DE2049114C3 (en) | 1970-10-06 | 1970-10-06 | Manufacture of free-flowing, non-blocking, redispersible plastic powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO136672B true NO136672B (en) | 1977-07-11 |
| NO136672C NO136672C (en) | 1977-10-19 |
Family
ID=5784353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO364871A NO136672C (en) | 1970-10-06 | 1971-10-05 | USE OF CERTAIN WATER-READABLE CONDENSATION PRODUCTS AS DISPENSING AND ANTI-AGGLOMATING AGENT IN CERTAIN PLASTIC DISTRIBUTIONS TO BE SPRAYED |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5146126B1 (en) |
| AT (2) | AT321183B (en) |
| BE (1) | BE773505A (en) |
| CA (1) | CA995839A (en) |
| CH (1) | CH555873A (en) |
| DE (1) | DE2049114C3 (en) |
| ES (1) | ES395726A1 (en) |
| FR (1) | FR2110988A5 (en) |
| GB (1) | GB1362830A (en) |
| NL (1) | NL169889C (en) |
| NO (1) | NO136672C (en) |
| SE (1) | SE383158B (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3005748C2 (en) * | 1980-02-15 | 1984-05-03 | Wilhelm Schön KG, 4428 Rosendahl | Dry mortar mixture for laying tiles, tiles, slabs and other coverings |
| DE3143070A1 (en) * | 1981-10-30 | 1983-05-11 | Basf Ag, 6700 Ludwigshafen | Process for the preparation of blocking-resistant, water- redispersible polymer powders by spraying aqueous polymer dispersions |
| EP0078449B2 (en) * | 1981-10-30 | 1992-01-08 | BASF Aktiengesellschaft | Process for preparing non blocking, in water readily dispersible polymer powders by spraying aqueous polymer dispersions |
| US5225478A (en) * | 1989-07-14 | 1993-07-06 | Basf Aktiengesellschaft | Polymer powders which are redispersible in water and can be prepared by atomizing aqueous polymer dispersions, and their use as additives in hydraulic binders |
| DE4118007A1 (en) * | 1991-06-01 | 1992-12-03 | Basf Ag | CONDENSATION PRODUCTS FROM SULFONATED PHENOLS, UREA, OTHER ORGANIC NITROGEN BASES AND FORMALDEHYDES AND THEIR USE AS TANTS AND AS SPRAY AIDS FOR REDISPENSABLE POLYMER POWDER |
| DE4218493A1 (en) * | 1992-06-04 | 1993-12-09 | Wacker Chemie Gmbh | Use of polypropylene glycol as a shrinkage-reducing additive in dispersion powder compositions for building materials |
| CA2110448A1 (en) * | 1992-12-08 | 1994-06-09 | Helen H.Y. Pak-Harvey | Redispersible acrylic polymer powder for cementitious compositions |
| DE4321070A1 (en) * | 1993-06-24 | 1995-01-05 | Wacker Chemie Gmbh | Redispersible dispersion powder composition |
| DE19623412B4 (en) * | 1996-06-12 | 2008-05-29 | Basf Se | Process for the preparation of polymer powder |
| DE19645732A1 (en) * | 1996-11-06 | 1998-05-07 | Basf Ag | Powdery polymer compositions |
| DE19746206A1 (en) * | 1997-10-18 | 1999-04-22 | Mike Wiegand | Powder composition is used as a combined tile adhesive and jointing compound powder |
| DE19853420A1 (en) | 1998-11-19 | 2000-05-25 | Wacker Chemie Gmbh | Use of dispersion powder compositions containing a vinylaromatic-diene base polymer stabilized with protective colloid in self-leveling flooring fillers and screeding materials |
| DE10132614A1 (en) | 2001-07-05 | 2003-01-16 | Polymerlatex Gmbh & Co Kg | Process for the preparation of protective colloid-stabilized, emulsifier-free, aqueous dispersions |
| DE102006007282A1 (en) | 2006-02-16 | 2007-08-23 | Wacker Polymer Systems Gmbh & Co. Kg | Process for the preparation of cationically stabilized and water-redispersible polymer powder compositions |
| DE102006050336A1 (en) | 2006-10-25 | 2008-05-08 | Wacker Polymer Systems Gmbh & Co. Kg | Gemini surfactant-containing dispersion powder compositions |
| US9062143B2 (en) | 2008-02-08 | 2015-06-23 | Dow Global Technologies Llc | Water-redispersible polymer powder |
| JP5403829B2 (en) | 2010-06-15 | 2014-01-29 | ダウ グローバル テクノロジーズ エルエルシー | Redispersible polymer powder composition made from styrene butadiene based latex for dry blend formulations |
| JP5403830B2 (en) | 2010-06-24 | 2014-01-29 | ダウ グローバル テクノロジーズ エルエルシー | Redispersible polymer powder made from a blend of carboxylated styrene butadiene based latex |
| BR112013032651B1 (en) | 2011-08-10 | 2020-06-02 | Sika Technology Ag | PROCESS FOR THE PRODUCTION OF A SOLID DISPERSANT FOR A HYDRAULICALLY BINDING COMPOSITION, A SOLID DISPERSANT FOR A HYDRAULICALLY BINDING COMPOSITION AND ITS USE |
| AU2014234553A1 (en) | 2013-03-18 | 2015-09-24 | Basf Se | Method for producing polymer powders that can be easily redispersed in water |
| WO2020119932A1 (en) | 2018-12-14 | 2020-06-18 | Wacker Chemie Ag | Polymers in the form of water-redispersible powders or aqueous dispersions |
| EP4146714A1 (en) | 2020-05-05 | 2023-03-15 | Wacker Chemie AG | Polyvinyl-alcohol-stabilized (meth)acrylic acid ester polymers |
| WO2023237717A1 (en) | 2022-06-10 | 2023-12-14 | Basf Se | Spray drying aid for a re-dispersible dispersion powder |
| WO2023237718A1 (en) | 2022-06-10 | 2023-12-14 | Basf Se | Powder paint comprising a re-dispersible dispersion powder |
-
1970
- 1970-10-06 DE DE19702049114 patent/DE2049114C3/en not_active Expired
-
1971
- 1971-10-01 NL NL7113536A patent/NL169889C/en not_active IP Right Cessation
- 1971-10-05 AT AT191273A patent/AT321183B/en not_active IP Right Cessation
- 1971-10-05 SE SE1258871A patent/SE383158B/en unknown
- 1971-10-05 ES ES395726A patent/ES395726A1/en not_active Expired
- 1971-10-05 AT AT858571A patent/AT312295B/en not_active IP Right Cessation
- 1971-10-05 BE BE773505A patent/BE773505A/en not_active IP Right Cessation
- 1971-10-05 CA CA124,464A patent/CA995839A/en not_active Expired
- 1971-10-05 FR FR7135782A patent/FR2110988A5/fr not_active Expired
- 1971-10-05 NO NO364871A patent/NO136672C/en unknown
- 1971-10-06 JP JP7861471A patent/JPS5146126B1/ja active Pending
- 1971-10-06 GB GB4654571A patent/GB1362830A/en not_active Expired
- 1971-10-06 CH CH1454171A patent/CH555873A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO136672C (en) | 1977-10-19 |
| DE2049114A1 (en) | 1972-04-13 |
| ES395726A1 (en) | 1974-10-16 |
| CA995839A (en) | 1976-08-24 |
| BE773505A (en) | 1972-04-05 |
| AT321183B (en) | 1975-03-25 |
| DE2049114B2 (en) | 1973-08-02 |
| GB1362830A (en) | 1974-08-07 |
| CH555873A (en) | 1974-11-15 |
| SE383158B (en) | 1976-03-01 |
| AT312295B (en) | 1973-12-27 |
| DE2049114C3 (en) | 1974-03-21 |
| JPS5146126B1 (en) | 1976-12-07 |
| NL169889C (en) | 1982-09-01 |
| NL169889B (en) | 1982-04-01 |
| NL7113536A (en) | 1972-04-10 |
| FR2110988A5 (en) | 1972-06-02 |
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