DK146477B - APPLICATION OF ARTIFICIAL DISTRIBUTIONS AS A BINDING AGENT IN LOW PIGMENTED COATING COLORS - Google Patents

APPLICATION OF ARTIFICIAL DISTRIBUTIONS AS A BINDING AGENT IN LOW PIGMENTED COATING COLORS Download PDF

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DK146477B
DK146477B DK356176AA DK356176A DK146477B DK 146477 B DK146477 B DK 146477B DK 356176A A DK356176A A DK 356176AA DK 356176 A DK356176 A DK 356176A DK 146477 B DK146477 B DK 146477B
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weight
parts
acetic
dispersion
acetic acid
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DK356176AA
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DK356176A (en
DK146477C (en
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Helmut Braun
Helmut Rinno
Werner Stelzel
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Hoechst Ag
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D131/00Coating compositions based on homopolymers or 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; Coating compositions based on derivatives of such polymers
    • C09D131/02Homopolymers or copolymers of esters of monocarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00Coating compositions based on homopolymers or 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04Homopolymers or copolymers of esters
    • C09D133/06Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/062Copolymers with monomers not covered by C09D133/06

Description

(19) DANMARK (jf|)(19) DENMARK (cf |)

§(12) FREMLÆGGELSESSKRIFT on 146477 B§ (12) SUBMISSION WRITING on 146477 B

DIREKTORATET FOR PATENT. OG VAREMÆRKEVÆSENETPATENT DIRECTORATE. AND THE TRADE BRAND

(21) Patentansøgning nr.: 3561/76 (51) Int.CI.3: C09D 5/00 (22) Indleveringsdag: Οβ aug 1976 C 09 D 3/727 (41) Aim. tilgængelig: 09 feb 1977 (44) Fremlagt: 17 okt 1983 (86) International ansøgning nr.: - (30) Prioritet: 08 aug 1975 DE 2535373 (71) Ansøger: ‘HOECHST AKTIENGESELLSCHAFT; 6230 Frankfurt/Maln 80, DE.(21) Patent Application No .: 3561/76 (51) Int.CI.3: C09D 5/00 (22) Filing Date: augβ Aug 1976 C 09 D 3/727 (41) Aim. available: 09 Feb 1977 (44) Submitted: 17 Oct 1983 (86) International Application No: - (30) Priority: 08 Aug 1975 DE 2535373 (71) Applicant: 'HOECHST AKTIENGESELLSCHAFT; 6230 Frankfurt / Maln 80, DE.

(72) Opfinder: Helmut *Braun; DE, Helmut ‘Rinno; DE, Werner ‘Stelzel; DE.(72) Inventor: Helmut * Brown; DE, Helmut 'Rinno; DE, Werner 'Stelzel; THE.

(74) Fuldmægtig: Ingeniørfirmaet Budde, Schou & Co (54) Anvendelse af kunststofdispersioner som bindemiddel i lavtpigmenterede udstrygningsfarver(74) Plenipotentiary: The engineering firm Budde, Schou & Co (54) Use of plastic dispersions as a binder in low pigmented smear colors

Problemet med dispersionsfarvers vådhæftning på glatte, ikke sugedygtige underlag har i lang tid begrænset anvendelsen af bestemte dispersionsfarver. Lavtpigmenterede dispersionsfarver, og blandt disse igen især sådanne, som tørrer op til glinsende eller silkematte film, hæfter dårligt på glatte, ikke sugedygtige underlag, når udstrygningerne fugtes igen efter tørringen. Særlig dårlig er vådhæftningen ved friske udstrygninger, der endnu ikke er ældet.The problem of dispersion dye wet adhesion on smooth, non-absorbent substrates has for a long time limited the use of certain dispersion dyes. Low pigmented dispersion paints, and among them again especially those which dry up to shiny or silky matte films, are poorly adhered to smooth, non-sugary substrates when the smears are moistened again after drying. Particularly bad is the wet adhesion of fresh smears that are not yet aged.

£ Lavtpigmenterede dispersionsfarver vælges i de tilfælde, s. hvor udstrygningen skal kunne afvaskes. På grund af det høje binde- Φ middelindhold i disse farver dannes en lukket, afvaskbar film.£ Low pigmented dispersion paints are selected in those cases where the smear should be washable. Due to the high binder content in these colors, a closed, washable film is formed.

^ Glinsende eller silkematte dispersionsfarver har ligeledes en pig- mentvolumenkoncentration på under 40% og som regel på ca. 10 - 25%.^ Shiny or silky matte dispersion paints also have a pigment volume concentration of less than 40% and usually of approx. 10 - 25%.

£ 2 146477£ 2 146477

Til forbedring af glans, flydeevne og "åben tid" (den tid, hvor en friskpåført film stadigvæk er våd på overfladen, dvs. der er endnu ikke dannet en lukket film) og som filmkonsolideringsmiddel (middel, som hjælper med til at gøre filmen fast efter udstrygninger) indeholder de desuden organiske opløsningsmidler i større mængde, ca. mellem 3 og 20%. Glans, flydeevne og åben tid påvirkes f.eks. ved hjælp af polyvalente, vandblandbare alkoholer med op til 6 car-bonatomer, især ethylen- og propylenglycol eller monomethyl-, mono-ethyl- eller monobutylethere deraf. Til forbedring af filmkonsolideringen anvendes begrænset vandopløselige opløsningsmidler, såsom monoglycoletherne af carboxylsyrer og især estere af. carboxylsyrer med monoalkylethere af glycoler eller oligoglycoler. Butyldiglycol-acetat er en af de mest udbredte repræsentanter for denne gruppe. Kombinationen af lav pigmentering og højere opløsningsmiddelindhold har en ganske særlig negativ virkning på dispersionsfarve-udstrygningernes vådhæftning.For enhancing gloss, flowability and "open time" (the time when a freshly applied film is still wet on the surface, ie a closed film has not yet formed) and as a film consolidation agent (agent which helps to firm the film after smears), they additionally contain larger amounts of organic solvents, approx. between 3 and 20%. Gloss, flowability and open time are affected e.g. using polyhydric water miscible alcohols with up to 6 carbon atoms, in particular ethylene and propylene glycol or monomethyl, monoethyl or monobutyl ethers thereof. To improve the film consolidation, limited water-soluble solvents such as the monoglycol ethers of carboxylic acids and especially esters of are used. carboxylic acids with monoalkyl ethers of glycols or oligoglycols. Butyldiglycol acetate is one of the most widespread representatives of this group. The combination of low pigmentation and higher solvent content has a particularly negative effect on the wet adhesion of the dispersion dye smears.

Mangelfuld vådhæftning fører til, at de udstrygninger, der er beregnet til at være afvaskbare, ikke mere er i besiddelse af denne egenskab, når de er påført glatte, ikke sugedygtige underlag, f.eks. på gamle alkydharpiks- eller oliefarveudstrygninger.Defective wet adhesion means that the smears intended to be washable are no longer in possession of this property when applied to smooth, non-absorbent substrates, e.g. on old alkyd resin or oil paint smears.

I fugtige rum, såsom køkkener eller badeværelser og mange industrilokaler, hvor der skal regnes med dannelse af kondensvand, kan den nye udstrygning løsne sig fra underlaget, når der ikke er sørget for en tilstrækkelig vådhæftning. Endelig vanskeliggør en mangelfuld vådhæftning udstrygningsarbejdet. Hvis f.eks. sokkel og den øverste væghalvdel eller væg og loft udføres i forskellige farver, kan det ske, at den første udstrygning tilsmudses med en anden farve på grund af unøjagtig penselføring. Principielt kan man fjerne disse tilsmudsninger med en fugtig klud eller svamp. Véd mangelfuld vådhæftning bliver den første udstrygning imidlertid let beskadiget eller skubbet helt af derved.In damp rooms, such as kitchens or bathrooms and many industrial premises where condensation water is to be formed, the new wipe can detach from the substrate when insufficient wet adhesion is provided. Finally, a defective wet stitching makes the ironing work difficult. For example, The plinth and the top half or wall and ceiling are done in different colors, it may happen that the first coat is soiled with a different color due to inaccurate brushing. In principle, these dirt can be removed with a damp cloth or sponge. However, in the case of defective wet stitching, the first wipe is easily damaged or pushed off completely.

Af disse grunde har det ikke skortet på forsøg på at modificere kunststofdispersioner således, at de med disse fremstillede dispersionsfarver har den ønskede vådhæftning. Talrige monomere, der indeholder specielle funktionelle grupper (f.eks. bestemte cycloureider, oxazolidiner, azomethiner eller aziridiner) er blevet foreslået som comonomere ved emulsionspolymerisationen til forbedring af dispersionsfarvers vådhæftning på ikke sugedygtige underlag.For these reasons, attempts have not been made to modify plastic dispersions such that the dispersion dyes produced with these dispersion colors have the desired wet adhesion. Numerous monomers containing special functional groups (eg, certain cycloureides, oxazolidines, azomethines or aziridines) have been proposed as comonomers in the emulsion polymerization to improve dispersion dye wet adhesion on non-absorbent substrates.

Til forbedring af vådhæftningen er det også foreslået af indbygge aminogrupper i emulsionspolymeres polymerkæder derved, at man medanvender comonomere med specielle reaktivgrupper, f.eks. oxiran-grupper eller grupper med nucleofilt substituerbare halogenatomer, 146477 3 ved emulsionspolymerisationen og først efter endt polymerisation indfører aminogrupperne i polymerenheden ved omsætning med ammoniak eller aminer.To improve wet adhesion, it is also suggested by embedded amino groups in the polymer chains of emulsion polymers, by using comonomers with special reactive groups, e.g. oxirane groups or groups with nucleophilic substitutable halogen atoms, in the emulsion polymerization and only after the polymerization is completed introduce the amino groups into the polymer unit by reaction with ammonia or amines.

Dispersionsudstrygninger, der indeholder sådanne amino-gruppeholdige polymere som bindemiddel, har imidlertid hyppigt tilbøjelighed til gulningssymptomer. Desuden er vådhæftningen ofte kun forbedret i ringe udstrækning. Ved lav pigmentering giver mange af disse farver ganske vist udstrygninger, der hæfter tilstrækkeligt på et glat,ikke sugedygtigt underlag, men hvis man tilsætter organiske opløsningsmidler til disse farver, har derudfra fremstillede udstrygninger langt fra nogen vådhæftning mere.However, dispersion smears containing such amino group-containing polymers as binder frequently have a tendency to yellowing symptoms. Furthermore, wet adhesion is often only slightly improved. At low pigmentation, many of these colors give smears that are sufficiently adhered to a smooth, non-absorbent surface, but if organic solvents are added to these colors, smears produced therefrom have far from any wet adhesion.

Fra tysk offentliggørelsesskrift nr. 1.495.706 kendes kunststofdispersioner, i hvis polymerisatandel der er indeholdt monomere, der indeholder ketogrupper, via hvilke en tværbinding med f.eks. dicarboxylsyre-bis-hydrazider er mulig. Disse dispersioner anvendes f.eks. inden for tekstilforædlingen til fremstilling af rensebestandige sletter eller inden for strygningsteknikken til fremstilling af opløsningsmiddelbestandige farver.German Patent Specification No. 1,495,706 discloses synthetic dispersions in which the polymerization fraction contains monomers containing keto groups, via which a crosslinking with e.g. dicarboxylic acid bis-hydrazides are possible. These dispersions are used e.g. within the textile refinement for the production of purification-resistant plains or in the ironing technique for the production of solvent-resistant dyes.

Det har nu vist sig, at der fremkommer lavtpigmenterede, opløsningsmiddelholdige udstrygningsfarver med høj vådhæftning, når man som bindemiddel anvender kunststofdispersioner, som er fremstillet ved polymerisation af olefinisk umættede monomere, blandt hvilke der indgår en ketogruppeholdig forbindelse, i vandigt medium, som indeholder gængse emulgatorer og beskyttelseskolloider, som har et faststofindhold på 20-70%, og som i polymerisatandelen indeholder en polymeriserbar aceteddikesyreester som comonomer.It has now been found that low pigmented, high wet adhesive solvent-containing smears appear when using as a binder, plastic dispersions made by polymerization of olefinically unsaturated monomers, including a keto group-containing compound, in aqueous medium containing gaseous emulsion containing gum and protective colloids having a solids content of 20-70% and containing in the polymerization portion a polymerizable acetic acid ester as a comonomer.

Opfindelsen angår i overensstemmelse hermed anvendelsen af således fremstillede kunststofdispersioner som bindemidler i lavtpigmenterede, opløsningsmiddelholdige udstrygningsfarver med høj vådhæftning, hvilken anvendelse er ejendommelig ved, at (a) der ved fremstilling af kunststofdispersionen, som copolyme-riserbar, ketogruppeholdig forbindelse er anvendt en aceteddikesyreester, idet andelen af aceteddikesyreester er 0,5-10 vægtprocent af samtlige monomere, (b) pigmentvolumenkoncentrationen andrager 7-30% af udstrygningsfarven, og (c) opløsningsmidlet er et organisk opløsningsmiddel, hvis mængde andrager 3-20 vægtprocent af udstrygningsfarven .Accordingly, the invention relates to the use of plastic dispersions thus prepared as binders in low pigmented, high wet adhesive stripping paints, the use of which is (a) used in the preparation of the plastic dispersion as a copolymerizable acetate the proportion of acetic acetic ester is 0.5-10% by weight of all monomers, (b) the pigment volume concentration is 7-30% of the smear color, and (c) the solvent is an organic solvent whose amount is 3-20% by weight of the smear color.

De aceteddikesyreestere, der er indeholdt som comonomere i de kunststofdispersioner, der skal anvendes ifølge opfindelsen, er fortrinsvis aceteddikesyrevinyl- eller -allylestere eller diestere med den almene formel 4 146477 RO O O R-CH=C-C-0-A-C-CH2-C-CH3 hvor R betyder H eller CH^, og A betyder -(CI^^-O- eller - (C^-C^^-O-, hvor 1 —n — 4, og 1 —m ·έ:3. Aceteddikesyreallylester foretrækkes. Beregnet på den samlede vægt af alle monomere andrager andelen af aceteddikeester 0,5-10 vægtprocent, fortrinsvis 1-5 vægtprocent.The acetic acetic esters contained as comonomers in the plastic dispersions to be used according to the invention are preferably acetic acetic acid vinyl or allyl esters or diesters of the general formula 4-O-R-CH = CC-O-AC-CH 2 -C-CH 3 where R is H or CH 2, and A is - (C 1 -C 4 - or - (C 1 -C 4 - O-, where 1 - n - 4, and 1 - m · έ: 3). Based on the total weight of all monomers, the proportion of acetate acetic acid is 0.5-10% by weight, preferably 1-5% by weight.

I stedet for en enkelt dispersion kan der anvendes blandinger af forskellige dispersioner, hvorhos imidlertid mindst én skal indeholde den polymert bundne aceteddikeester, nemlig i en sådan mængde, at aceteddikeesteren er til stede i de ovenfor angivne mængder, beregnet på den samlede vægt af alle i blandingen indeholdte monomere.Instead of a single dispersion, mixtures of different dispersions may be used, however, at least one of which must contain the polymer-bound acetate acetic ester, namely in such an amount that the acetic acetic ester is present in the above amounts, based on the total weight of all the mixture contained monomers.

I opfindelsens forstand er lavtpigmenterede dispersionsfarver dispersions farver, hvis pigmentvolumenkoncentration ligger mellem .7 og 30%, fortrinsvis mellem 10 og 20%.In the sense of the invention, low pigmented dispersion colors are dispersion colors whose pigment volume concentration is between .7 and 30%, preferably between 10 and 20%.

Organiske opløsningsmidler er ved den foreliggende opfindelse glycoler og derivater deraf, f.eks. ethylenglycol, propylen-glycol, butylenglycol, hexylenglycol, oligoglycoler, såsom di- eller triglycol, glycol- eller oligoglycolethere, såsom methyl-, ethyl-, propyls eller butyl-mono-, -di- eller -tri-glycolethere, mono-, di- eller triglycolestere, såsom mono-, di- eller tri-glyco1-acetat, -propionat eller -butyrat samt (oligo-)glycol-halvether-halv-estere, såsom methyl-, ethyl-, propyl- eller butyl-mono-, -di- eller -tri-glycolacetat, -propionat eller -butyrat. Også blandinger af sådanne forbindelser skal være organiske opløsningsmidler i opfindelsens forstand. De organiske opløsningsmidler sættes til farven i en mængde på fra 3 til 20 vægtprocent, fortrinsvis 5-15 vægtprocent, beregnet på farvens samlede vægt.In the present invention, organic solvents are glycols and derivatives thereof, e.g. ethylene glycol, propylene glycol, butylene glycol, hexylene glycol, oligoglycols such as di- or triglycol, glycol or oligoglycol ethers such as methyl, ethyl, propyls or butyl mono-, di- or tri-glycol ethers, mono-, di or triglycol esters such as mono-, di- or tri-glyco1-acetate, propionate or butyrate and (oligo-) glycol-half-ether-half-esters such as methyl, ethyl, propyl or butyl mono-, di- or tri-glycol acetate, propionate or butyrate. Also, mixtures of such compounds must be organic solvents within the meaning of the invention. The organic solvents are added to the color in an amount of from 3 to 20% by weight, preferably 5 to 15% by weight, based on the total weight of the color.

De vandige kunststofdispersioner har faststofindhold på mellem 20 og 70%, fortrinsvis mellem 40 og 60%. I øvrigt fremstilles de vandige kunststofdispersioner på gængs måde ved fremgangsmåder , der er kendte for en fagmand.The aqueous plastic dispersions have a solids content of between 20 and 70%, preferably between 40 and 60%. Incidentally, the aqueous plastic dispersions are customarily prepared by methods known to those skilled in the art.

Valget af de øvrige monomere er ikke kritisk. På tale kommer alle i kunststofdispersioner gængs anvendte monomere, der på fornuftig måde kan kombineres med hinanden svarende til de fordringer, der stilles i praksis. Egnet er f.eks. vinylestere af organiske carboxylsyrer, hvis carbonskelet indeholder 1-30, fortrinsvis 1 - 20, carbonatomer, f.eks. vinylacetat, vinylpropionat, iso-nonansyrevinylester samt vinylestere af forgrenede monocarboxylsyrer med op til 20 carbonatomer, estere af acrylsyre eller methacryl-syre med 1 - 30, fortrinsvis 1-20, carbonatomer i alkoholgruppen, 5 146477 såsom ethylacrylat, isopropylacrylat, butylacrylat, 2-ethylhexyl-acrylat, methyImethacrylat, butyImethacrylat, aromatiske eller ali-phatiske α,β-umættede carbonhydrider, såsom ethylen, propylen, styren, vinyltoluen, vinylhalogenider, såsom vinylchlorid, umættede nitriler, • såsom acrylonitril, diestere af maleinsyre eller fumarsyre, såsom dibutylmaleinat eller dibutylfumarat, α,β-umættet carboxylsyre, såsom acrylsyre, methacrylsyre eller crotonsyre samt derivater deraf, såsom acrylamid eller methacrylamid.The choice of the other monomers is not critical. In speech, all monomers used in plastic dispersions are commonly used, which can be combined in a sensible way with each other according to the demands made in practice. Suitable for example. vinyl esters of organic carboxylic acids whose carbon backbone contains 1-30, preferably 1-20, carbon atoms, e.g. vinyl acetate, vinyl propionate, iso-nonanoic acid vinyl ester and vinyl esters of branched-chain monocarboxylic acids of up to 20 carbon atoms, esters of acrylic acid or methacrylic acid having 1 to 30, preferably 1-20, carbon atoms in the alcohol group, 5 146477 such as ethyl acrylate, isopropyl acrylate, ethyl hexyl acrylate, methyl methacrylate, butyl methacrylate, aromatic or aliphatic α, β-unsaturated hydrocarbons such as ethylene, propylene, styrene, vinyl toluene, vinyl halides such as vinyl chloride, unsaturated nitriles, such as acrylonitrile or diesters of maleic acid, diesters of maleic acid, diesters of maleic acid, diesters of maleic acid, diesters of maleic acid. dibutyl fumarate, α, β-unsaturated carboxylic acid such as acrylic acid, methacrylic acid or crotonic acid and derivatives thereof such as acrylamide or methacrylamide.

Ved udvælgelsen af de egnede monomere eller monomerkombinationer skal der tages hensyn til de alment anerkendte synspunkter til fremstilling af udstrygningsdispersioner. Man skal således især passe på, at der dannes polymere, der under de fastsatte tørringsbetingelser for farven danner en film, og valget af de monomere til fremstillingen af copolymerisater skal træffes således, at der ifølge polymerisationsparametrenes stilling kan forventes dannelse af copolymere med de ketogruppeholdige monomere. Nedenfor er anført nogle egnede monomerkombinationer: ethylacrylat/methyImethacrylat/(meth-)acrylsyre/aceteddikesyre-allylester, isopropylacrylat/methyImethacrylat/(meth-)acrylsyre/aceteddike-syreallylester, butylacrylat/methyImethacrylat/(meth-)acrylsyre/aceteddikesyre-allylester, isobutylacrylat/methyImethacrylat/(meth-)acrylsyre/aceteddikesyre-allylester, 2-ethylhexylacrylat/methyImethacrylat/(meth-)acrylsyre/aceteddike-syreallylester, ethylacrylat/styren/methyImethacrylat/(meth-)acrylsyre/aceteddike-syreallylester, butylacrylat/styren/methyImethacrylat/(meth-)acrylsyre/aceteddike-syreallylester, 2-ethylhexylacrylat/styren/(meth-)acrylsyre/aceteddikesyreallyl-ester, vinylacetat/butylacrylat/aceteddikesyreallylester, vinylacetat/dibutylmaleinat/aceteddikesyreallylester, vinylacetat/dibutylfumarat/aceteddikesyreallylester, vinylacetat/isononansyrevinylester/aceteddikesyreallylester, vinylacetat/2-ethylhexansyrevinylester/aceteddikesyreallylester, vinylacetat/versatin-10-syrevinylester/aceteddikesyreallylester, vinylacetat/ethylen/aceteddikesyreallylester og vinylacetat/ethylen/vinylchlorid/aceteddikesyreallylester.In selecting the appropriate monomer or monomer combinations, the generally accepted views for the preparation of smear dispersions must be taken into account. In particular, care must be taken that polymers are formed which, under the established drying conditions for the color, form a film and the choice of the monomers for the production of copolymers must be made so that, according to the position of the polymerization parameters, formation of copolymers with the keto group-containing monomers can be expected. . Listed below are some suitable monomer combinations: ethyl acrylate / methyl methacrylate / (meth-) acrylic acid / acetic acid allyl ester, isopropyl acrylate / methyl methacrylate / (meth-) acrylic acid / acetacetic acid acrylic acid ester, butyl acrylate / methyl acrylic acid / methylmethacrylate / (meth) acrylic acid / acetacetic acid allyl ester, 2-ethylhexylacrylate / methylmethacrylate / (meth) acrylic acid / acetacetic acid acrylic acid ester, ethyl acrylate / styrene / methylmethacrylate / (methyl) acrylic acid / acetacetic acid / / ((meth) acrylic acid / acetic acid acetic acid ester, 2-ethylhexyl acrylate / styrene / (meth-) acrylic acid / acetic acid acrylic ester, vinyl acetate / butyl acrylate / acetic acid acyl acetate / vinyl acetate / acetic acid / acetic acid / acetic acid / acetate , vinyl acetate / 2-ethylhexanoic acid vinyl ester / acetacetic acid allyl ester, vinyl acetate / versatin 10 acid vinyl ester / Acetic Acid Allyl Ester, Vinyl Acetate / Ethylene / Acetic Acid Allyl Ester and Vinyl Acetate / Ethylene / Vinyl Chloride / Acetic Acid Allyl Ester.

6 U64776 U6477

Kunststofdispersioner er overordentlig komplekse systemer. Fremstillingen af dispersioner, der er egnede til opfindelsens for-. mål, forudsætter anvendelse af de erfaringer, der foreligger inden .for området for emulsionspolymerisation, også selv om de ikke er specielt beskrevet her. Ignorering af de regler, der er kendte for en fagmand inden for emulsionspolymerisationen, kan derfor påvirke vigtige egenskaber, f.eks. vandbestandigheden, i ugunstig retning. Beregnet på indholdet af polymerisat bør dispersionerne derfor ikke overskride de gængs anvendte mængder på op til 3%, fortrinsvis op til 2%, ioniske emulgatorer eller op til 6%, fortrinsvis op til 4%, ikke-ioniske emulgatorer væsentligt.Plastic dispersions are extremely complex systems. The preparation of dispersions suitable for the invention. targets, assuming the experience of the field of emulsion polymerization, even though not specifically described herein. Ignoring the rules known to one of ordinary skill in the art of emulsion polymerization can therefore affect important properties, e.g. the water resistance, in an unfavorable direction. Therefore, based on the polymer content, the dispersions should not exceed the commonly used amounts of up to 3%, preferably up to 2%, ionic emulsifiers or up to 6%, preferably up to 4%, non-ionic emulsifiers.

Som ikke-ioniske emulgatorer anvendes f.eks. alkylpoly-glycolethere, f.eks. ethoxyleringsprodukterne af lauryl-, oleyl-eller stearylalkohol eller af blandinger, såsom kokosfedtalkohol, alkylphenolpolyglycolethere, såsom ethoxyleringsprodukterne af octyl- eller nonylphenol, diisopropylphenol, triisopropylphenol eller af di- eller tri-tert.butylphenol, eller ethoxyleringsprodukterne af polypropylenoxid.As nonionic emulsifiers, e.g. alkyl polyglycol ethers, e.g. the ethoxylation products of lauryl, oleyl or stearyl alcohol or of mixtures such as coconut fatty alcohol, alkylphenol polyglycol ethers, such as the ethoxylation products of octyl or nonylphenol, diisopropylphenol, triisopropylphenol or of di- or tri-tertylene or tert-butylphenol

På tale som ionogene emulgatorer kommer i første række anioniske emulgatorer. Det kan her dreje sig om alkalimetal- eller ammoniumsaltene af alkyl-, aryl- eller alkyl-aryl-sulfonater, -sulfater, -phosphater, -phosphonater eller forbindelser med andre anioniske endegrupper, idet der også kan befinde sig oligo- eller polyethylenoxidenheder mellem carbonhydridgruppen og den anioniske gruppe. Typiske eksempler er natriumlaurylsulfat, natriumoctyl-phenolglycolethersulfat, natriumdodecylbenzensulfonat, natrium-lauryldiglycolsulfat, ammonium-tri-tert.butylphenolpenta- eller -octaglycolsulfat.Speaking as ionic emulsifiers comes primarily anionic emulsifiers. These may be the alkali metal or ammonium salts of alkyl, aryl or alkyl aryl sulfonates, sulfates, phosphates, phosphonates or compounds with other anionic end groups, as there may also be oligo or polyethylene oxide units between the hydrocarbon group and the anionic group. Typical examples are sodium lauryl sulfate, sodium octylphenol glycol ether sulfate, sodium dodecylbenzenesulfonate, sodium lauryl diglycol sulfate, ammonium tri-tert.butylphenol penta or octaglycol sulfate.

Som beskyttelseskolloider anvendes eventuelt naturstoffer, såsom gummiarabicum, stivelse, alginater eller modificerede naturstoffer, såsom methyl-, ethyl-, hydroxyalkyl- eller carboxymethyl-cellulose, eller syntetiske forbindelser, såsom polyvinylalkohol, polyvinylpyrrolidon, eller blandinger af sådanne forbindelser. Der kan fortrinsvis anvendes modificerede cellulosederivater og syntetiske beskyttelseskolloider.As protective colloids, natural substances such as gum arabic, starch, alginates or modified natural substances such as methyl, ethyl, hydroxyalkyl or carboxymethyl cellulose, or synthetic compounds such as polyvinyl alcohol, polyvinylpyrrolidone, or mixtures of such compounds are optionally used. Preferably, modified cellulose derivatives and synthetic protective colloids may be used.

Til igangsætning og videreføring af polymerisationen betjener man sig af olie- og/eller fortrinsvis vandopløselige radikaldannere eller redoxsystemer. Egnede er f.eks. hydrogenper-oxid, kalium- eller ammoniumperoxydisulfat, dibenzoylperoxid, lauryl-peroxid, tri-tert.butylperoxid, bis-azodiisobutyronitril, alene eller sammen med reducerende komponenter, f.eks. natriumbisulfit, rongalit, glucose, ascorbinsyre og andre forbindelser med reducerende virkning.To initiate and carry on the polymerization, oil and / or preferably water-soluble radical formers or redox systems are used. Suitable are e.g. hydrogen peroxide, potassium or ammonium peroxide disulfate, dibenzoyl peroxide, lauryl peroxide, tert-butyl peroxide, bis-azodiisobutyronitrile, alone or together with reducing components, e.g. sodium bisulfite, rongalite, glucose, ascorbic acid and other compounds having a reducing effect.

7 1464777 146477

Ved den her omhandlede anvendelse af de angivne kunststofdispersioner i udstrygningsfarver med høj vådhæftning blandes dispersionerne med en pigmentopslæmning. Sådanne pigmentopslæmninger, også kaldet pigmentdeje eller pigmentpastaer, som er egnede til anvendelse i lavtpigmenterede dispersionsfarver og især glansfarver, består f.eks. af titandioxid, der er ensartet dispergeret i vand. De indeholder som regel beskyttelses-kolloider, såsom cellulosederivater, f.eks. hydroxyethylcellulose, og dispergeringsmidler, f.eks. salte af poly(meth)acrylsyre eller natriumpolyphosphat. Gængse bestanddele i pigmentopslæmningen er endvidere antimikrobielle konserveringsmidler, antiskummidler, pH-værdistabilisatorer og fyldstoffer. Særlig egnede titandioxid-pigmenter er rutil og anatas. For glansfarver er det vigtigt, at den gennemsnitlige partikeldiameter af pigmentet ligger i nærheden af den nedre grænse for lysbølgelængden, dvs. ved fra ca. 0,4 til 0,2 μ. Til fremstillingen af lavtpigmenterede matte farver kan man f.eks. medanvende specielle overfladerige silicatpigmenter. Binde-middelrige matte farver giver udstrygninger, der er lette at rengøre. Pigmentpastaen kan naturligvis også indeholder farvede pigmenter, men den ønskede farvetone kan lige så godt indstilles ved aftoning af den med hvidtpigment konfektionerede dispersionsfarve.In the present application of the specified plastic dispersions in high wet stripping strokes, the dispersions are mixed with a pigment slurry. Such pigment slurries, also called pigment doughs or pigment pastes, which are suitable for use in low pigmented dispersion colors and especially gloss colors, consist e.g. of titanium dioxide uniformly dispersed in water. They usually contain protective colloids such as cellulose derivatives, e.g. hydroxyethyl cellulose, and dispersants, e.g. salts of poly (meth) acrylic acid or sodium polyphosphate. Furthermore, common ingredients in the pigment slurry are antimicrobial preservatives, antifoam agents, pH stabilizers and fillers. Particularly suitable titanium dioxide pigments are rutile and anatase. For gloss colors, it is important that the average particle diameter of the pigment is close to the lower limit of the light wavelength, ie. know from approx. 0.4 to 0.2 µ. For the manufacture of low pigmented matte colors, for example, while using special surface-rich silicate pigments. Binder-medium matte colors provide smudges that are easy to clean. The pigment paste may, of course, also contain colored pigments, but the desired tint can be adjusted just as well by fading the dispersion color with white pigment.

Pigmentopslæmningen kan fremstilles ved de kendte metoder, f.eks. ved dispergering af pigmentet i en dissolver eller på kugleeller sandmøller eller ved hjælp af valseværker. Til anvendelse i glansfarver må pigmentopslæmningen ikke indeholde væsentlige mængder pigmentaggregater, fordi disse påvirker glansen ugunstigt.The pigment slurry can be prepared by the known methods, e.g. by dispersing the pigment in a dissolver or on ball or sand mills or by rolling mills. For use in gloss colors, the pigment slurry must not contain significant amounts of pigment aggregates because these adversely affect the gloss.

Til enten dispersionen eller den færdige dispersionfarve kan der tilsættes hjælpestoffer, f.eks. blødgørere, tværbindende midler, pufferstoffer, fortykningsmidler, thixotroperingsmidler, rustbeskyttelsesmidler, alkydharpikser eller tørrende olier. Blødgør ingsmidler er her ikke de indledningsvis som filmkonsolideringsmidler nævnte opløsningsmidler med kun temporær virkning, men forbindelser, såsom dibutylphthaiat, der sænker filmdannelsestemperaturen og forbliver i polymerisatet i længere tid.For either the dispersion or the finished dispersion color, adjuvants, e.g. plasticizers, cross-linking agents, buffering agents, thickeners, thixotropic agents, antifouling agents, alkyd resins or drying oils. In this case, plasticizers are not the solvents initially referred to as film consolidation agents with only temporary effect, but compounds such as dibutyl phthalate which lower the film formation temperature and remain in the polymer for a long time.

De nedenfor beskrevne eksempler tjener til illustrering af opfindelsen.The examples described below serve to illustrate the invention.

Eksempel 1 I en 2 liters trehalset kolbe, der befinder sig i et varmebad, og som er udstyret med omrører, tilbagesvaler, tildryp-ningstragt og termometer, opvarmes under omrøring en dispersionsflotte bestående af 146477 8 603 vægtdele vand 18 vægtdele polyvinylalkohol med hydrolysegraden 88 molprocent og en viskositet af den 4%'s vandige opløsning ved 20°C på 18 cP 0/9 vægtdele natriumvinylsulfonat 6 vægtdele natriumdodecylbenzensulfonat 0,72 vægtdele Nal^PO^ · 2^0Example 1 In a 2 liter three-necked flask, which is in a hot bath, equipped with a stirrer, reflux, drip funnel and thermometer, stir with stirring a dispersion float consisting of 146477 8603 parts by weight 18 parts by weight polyvinyl alcohol with a degree of hydrolysis of 88 mole percent. and a viscosity of the 4% aqueous solution at 20 ° C of 18 cP 0/9 parts by weight of sodium vinyl sulfonate 6 parts by weight of sodium dodecylbenzenesulfonate 0.72 parts by weight Nal

1,67 vægtdele · 12 I^O1.67 parts by weight · 12 I ^ O

1.5 vægtdéle ammoniumperoxydisulfat og 60 vægtdele vinylacetat hvorved polymerisationen kommer i gang. Når temperaturen er steget til 70°C, påbegyndes tildoseringen af en blanding ud fra 540 vægtdele vinylacetat og 18 vægtdele aceteddikesyreallylester. Den samlede tildoseringstid er ca. 3 timer.1.5 parts by weight of ammonium peroxide disulfate and 60 parts by weight of vinyl acetate, thereby initiating polymerization. When the temperature has risen to 70 ° C, the dosing of a mixture starting from 540 parts by weight of vinyl acetate and 18 parts by weight of acetic acetic acid allyl ester is started. The total dosing time is approx. 3 hours.

Efter endt monomertilsætning efteropvarmes ved polymerisationstemperaturen (70°C) i yderligere 2 timer under fortsat omrøring, hvorpå blandingen afkøles.After completion of the monomer addition, reheat at the polymerization temperature (70 ° C) for an additional 2 hours with continued stirring and then cool the mixture.

Eksempel 2 (Sammenligningseksempel)Example 2 (Comparative Example)

Der gås frem på nøjagtig samme måde som beskrevet i eksempel 1, idet der dog ikke tilsættes aceteddikesyreallylester.Proceed in exactly the same manner as described in Example 1, but no acetic acetic acid allyl ester is added.

Eksempel 3 I et apparatur som det i eksempel 1 beskrevne opvarmes en dispersionsflotte bestående af 607 vægtdele vand 18 vægtdele oleylpolyglycolether med ca. 25 ethylenoxidenheder 0,2 vægtdele natrium-dodecylbenzensulfonat 12 ; vægtdele hydroxyethylcellulose med en gennemsnitlig poly merisationsgrad på ca. 400 (molvægt ca. 100.000) 1/5 vægtdele natriumacetat 2.5 vægtdele ammoniumperoxydisulfat og 60 vægtdele af en monomerblanding, der er taget fra en blanding af 450 vægtdele vinylacetat, 150 vægtdele iso-nonansyrevinylester og 12 vægtdele aceteddikesyre-allylester, til 70°C, og ved denne temperatur tildoseres den resterende monomer- 9 U6477 blanding (552 vægtdele) i løbet af 3 timer. Efter tildoseringen tilsættes 0,5 vægtdele ammoniumperoxydisulfat i 15 vægtdele vand, og der efteropvarmes i 2 timer. Paststofindholdet ligger ved ca. 50%.Example 3 In an apparatus such as that described in Example 1, a dispersion float consisting of 607 parts by weight of water 18 parts by weight of oleyl polyglycol ether is heated by approx. Ethylene oxide units 0.2 parts by weight of sodium dodecylbenzenesulfonate 12; parts by weight of hydroxyethyl cellulose with an average degree of polymerization of approx. 400 (mol. Wt. About 100,000) 1/5 parts by weight of sodium acetate 2.5 parts by weight of ammonium peroxide disulfate and 60 parts by weight of a monomer mixture taken from a mixture of 450 parts by weight of vinyl acetate, 150 parts by weight of iso-nonanoic acid vinyl ester and 12 parts by weight of acetic acid allyl ester, to 70 ° C, and at this temperature, the remaining monomer mixture (552 parts by weight) is dosed over 3 hours. After dosing, 0.5 parts by weight of ammonium peroxide disulfate is added in 15 parts by weight of water and then heated for 2 hours. Adhesive content is at approx. 50%.

Eksempel 4 (Sammenligningseksempel)Example 4 (Comparative Example)

Der gås frem på nøjagtig samme måde som beskrevet i eksempel 3, idet der dog ikke tilsættes aceteddikesyreallylester.Proceed in exactly the same manner as described in Example 3, but no acetic acetic acid allyl ester is added.

Eksempel 5 I et apparatur som det i eksempel 1 beskrevne opvarmes en dispersionsflotte bestående af 618 vægtdele vand 18 vægtdele nonylphenolpolyglycolether med ca. 30 ethylenoxid- enheder 1.5 vægtdele natriumacetat 12 vægtdele hydroxyethylcellulose med en gennemsnitlig polymer i sationsgrad på ca. 400 (molvægt ca. 100.000) 2.5 vægtdele ammoniumperoxydisulfat 62 vægtdele (10%) af en monomerblanding, der består af 480 vægtdele vinylacetat, 120 vægtdele dibutylmaleinat og 18 vægtdele aceteddikesyreallylester, til 70°C, og den resterende monomerblanding tildoseres i løbet af 3 timer. Efter tildoseringen tilsættes 0,5 vægtdele ammoniumperoxydisulfat i 15 vægtdele vand, og der efteropvarmes i 2 timer. Faststof indholdet ligger ved ca. 50%.Example 5 In an apparatus such as that described in Example 1, a dispersion float consisting of 618 parts by weight of water 18 parts by weight of nonylphenol polyglycol ether is heated by approx. 30 parts of ethylene oxide 1.5 parts by weight of sodium acetate 12 parts by weight of hydroxyethyl cellulose with an average polymer in degree of approx. 400 (molar weight approx. 100,000) 2.5 parts by weight of ammonium peroxide disulfate 62 parts by weight (10%) of a monomer mixture consisting of 480 parts by weight of vinyl acetate, 120 parts by weight of dibutyl malinate and 18 parts by weight of acetic acid allyl ester to 70 ° C and the remaining monomer mixture dosed over 3 hours. . After dosing, 0.5 parts by weight of ammonium peroxide disulfate is added in 15 parts by weight of water and then heated for 2 hours. The solids content is at approx. 50%.

Eksempel 6 (Sammenligningseksempel)Example 6 (Comparative Example)

Der gås frem på nøjagtig samme måde som beskrevet i eksempel 5, idet der dog ikke tilsættes aceteddikesyreallylester.Proceed in exactly the same manner as described in Example 5, but no acetic acetic acid allyl ester is added.

Eksempel 7 I et apparatur som det i eksempel 1 beskrevne opvarmes en dispersionsflotte bestående af 146477 10 636 vægtdele vand 18 vægtdele nonylphenolpolyglycolether med ca. 30 ethylenoxid-enhederExample 7 In an apparatus such as that described in Example 1, a dispersion float consisting of 146477 10 636 parts by weight of water 18 parts by weight of nonylphenol polyglycol ether is heated by approx. 30 ethylene oxide units

12 vægtdele polyvinylalkohol med hydrolysegraden 88 molprocent og en viskositet af den 4%'s vandige opløsning ved 20°C på 18 cP12 parts by weight of polyvinyl alcohol with the degree of hydrolysis 88 mole percent and a viscosity of the 4% aqueous solution at 20 ° C at 18 cP

0,9 vægtdele natriumvinylsulfonat 1.5 vægtdele natriumacetat 2.5 vægtdele ammoniumperoxydisulfat 48 vægtdele vinylacetat 12 vægtdele versatin-10-syre-vinylester og 1,2 vægtdele aceteddikesyreallylester til 70°C, og ved denne temperatur tildoseres en blanding ud fra 432 vægtdele vinylacetat, 108 vægtdele versatin-10-syre-vinylester og 18 vægtdele aceteddikesyreallylester i løbet af 3 timer. Efter tildoseringen tilsættes 0,5 vægtdele ammoniumperoxydisulfat i 15 vægtdele vand, og der efteropvarmes i 2 timer. Faststofindholdet ligger ved ca. 50%.0.9 parts by weight sodium vinyl sulfonate 1.5 parts by weight sodium acetate 2.5 parts by weight ammonium peroxide disulfate 48 parts by weight vinyl acetate 12 parts by weight versatin-10-acid vinyl ester and 1.2 parts by weight of acetic acid aryl ester at 70 ° C, and at this temperature a mixture is dispensed from 432 parts by weight of vinyl acetate, 108 parts by weight. -10-acid vinyl ester and 18 parts by weight of acetic acid allyl ester over 3 hours. After dosing, 0.5 parts by weight of ammonium peroxide disulfate is added in 15 parts by weight of water and then heated for 2 hours. The solids content is at approx. 50%.

Eksempel 8 (sammenligningseksempel)Example 8 (Comparative Example)

Der gås frem på nøjagtig samme måde som beskrever i eksempel 7, idet der dog ikke tilsættes aceteddikesyreallylester.Proceed in exactly the same manner as described in Example 7, but no acetic acetic acid allyl ester is added.

Eksempel 9Example 9

Der fremstilles først en monomeremulsion med nedenstående sammensætning: 308 vægtdele vand 6 vægtdele ammonium-tri-tert.butylphenolpolyglycolethersulfat med ca. 8 ethylenoxidenheder 12 vægtdele methacrylsyre 6 vægtdele acrylsyre 300 vægtdele 2-ethylhexylacrylat 300 vægtdele methylmethacrylat og 12 vægtdele aceteddikesyreallylester omrøres med en hurtigtgående omrører, indtil der fremkommer en stabil emulsion.First, a monomer emulsion of the following composition is prepared: 308 parts by weight of water 6 parts by weight of ammonium tri-tert.butylphenol polyglycol ether sulfate with approx. 8 parts ethylene oxide 12 parts by weight methacrylic acid 6 parts by weight acrylic acid 300 parts by weight 2-ethylhexyl acrylate 300 parts by weight methyl methacrylate and 12 parts by weight acetic acetic acid allylic ester are stirred with a fast stirrer until a stable emulsion is obtained.

I et apparatur som det i eksempel 1 beskrevne opvarmes en blanding ud fra 146477 11 306 vægtdele vand 3 vægtdele ammonium-tri-tert.butylphenolpolyglycolethersulfat med ca. 8 ethylenoxidenheder og 60 vægtdele monomeremulsion til 81°C, og en opløsning ud fra 0,45 vægtdele ammoniumperoxysulfat i 15 vægtdele vand tilsættes. Dernæst påbegyndes tildoseringen af den resterende monomeremulsion, og polymerisationen føres til ende.In an apparatus such as that described in Example 1, a mixture of water parts 3 parts by weight of ammonium tri-tert.butylphenol polyglycol ether sulfate is heated from ca. 8 ethylene oxide units and 60 parts by weight of monomer emulsion to 81 ° C and a solution from 0.45 parts by weight of ammonium peroxy sulfate in 15 parts by weight of water are added. Next, the dosing of the remaining monomer emulsion is started and the polymerization is completed.

Den totale tildoseringstid er 2 timer, og polymerisationstemperaturen og temperaturen under efteropvarmningstiden ligger mellem 81 og 83°C. Efter endt monomertildosering tilsættes 0,15 vægtdele ammoniumperoxydisulfat i 5 vægtdele vand, der opvarmes yderligere i 60 minutter og afkøles dernæst. Faststofindholdet er ca. 50%.The total dosing time is 2 hours and the polymerization temperature and the temperature during the post-heating time are between 81 and 83 ° C. After completion of the monomer dose, 0.15 parts by weight of ammonium peroxide disulfate is added in 5 parts by weight of water, which is further heated for 60 minutes and then cooled. The solids content is approx. 50%.

Eksempel 10 (Sammenligningseksempel)Example 10 (Comparative Example)

Der gås frem på nøjagtig samme måde som beskrevet i eksempel 9, idet der dog ikke tilsættes aceteddikesyreallylester.Proceed in exactly the same manner as described in Example 9, but no acetic acetic acid allyl ester is added.

Eksempel 11Example 11

Der fremstilles først en monomeremulsion med nedenstående sammensætning: 310 vægtdele vand 6 vægtdele natriumsalt af laurylalkoholdiglycolethersulfat 12 vægtdele methacrylsyre 6 vægtdele acrylsyre 300 vægtdele butylacrylat 300 vægtdele styren og 18 vægtdele aceteddikesyreallylester omrøres med en hurtigtgående omrører, indtil der fremkommer en stabil emulsion.First, a monomer emulsion of the following composition is prepared: 310 parts by weight of water 6 parts by weight of sodium salt of lauryl alcohol containing glycol ether sulfate 12 parts by weight of methacrylic acid 6 parts by weight of acrylic acid 300 parts by weight of butyl acrylate 300 parts by weight of styrene and 18 parts by weight of acetic acid aryl acetic ester is stirred with a fast stirring emulsion until a stable stirring is obtained.

I et apparatur som det i eksempel 1 beskrevne opvarmes en blanding ud fra 303 vægtdele vand 3 vægtdele natriumsalt af laurylalkoholdiglycolethersulfat og 62 vægtdele af monomeremulsionen til 81°C, og en opløsning ud fra 0,45 vægtdele ammoniumperoxydisulfat i 15 vægtdele vand tilsættes. Dernæst påbegyndes tildoseringen af den resterende monomeremulsion, og polymerisationen føres til ende.In an apparatus such as that described in Example 1, a mixture is heated from 303 parts by weight of water 3 parts by weight of sodium salt of lauryl alcohol containing glycol ether sulfate and 62 parts by weight of the monomer emulsion to 81 ° C, and a solution of 0.45 parts by weight of ammonium peroxide disulfate in 15 parts by weight of water is added. Next, the dosing of the remaining monomer emulsion is started and the polymerization is completed.

Den totale tildoseringstid er 2 timer, og polymerisationstempera-turen og temperaturen under efteropvarmningstiden ligger mellem 81 146477 12 og 83°C. Efter endt monomertildosering tilsættes 0,15 vægtdele airano-niumperoxydisulfat i 5 vægtdele vand, der opvarmes yderligere i 60 minutter og afkøles dernæst. Paststofindholdet er ca. 50%.The total dosing time is 2 hours, and the polymerization temperature and the temperature during the post-heating time are between 81 and 146 ° C. Upon completion of the monomer dosage, 0.15 parts by weight of aerosonic peroxide disulfate is added in 5 parts by weight of water, which is further heated for 60 minutes and then cooled. The adhesive content is approx. 50%.

Eksempel 12 (Sammenligningseksempel)Example 12 (Comparative Example)

Der gås frem på nøjagtig samme måde som beskrevet i eksempel 11, idet der dog ikke tilsættes aceteddikesyreallylester.Proceed in exactly the same manner as described in Example 11, but no acetic acetic acid allyl ester is added.

Til afprøvning af vådhæftningen fremstilles glansfarver efter nedenstående recept.For testing the wet adhesion, gloss colors are prepared according to the recipe below.

1. Vand 41,0 vægtdele 3%'s vandig opløsning af 15,6 vægtdele "Tylose H 20"® "Calgon N"® (fast) 0,4 vægtdele1. Water 41.0 parts by weight 3% aqueous solution of 15.6 parts by weight "Tylose H 20" ® "Calgon N" ® (solid) 0.4 parts by weight

Dispergeringsmiddel PA 30 3,0 vægtdeleDispersant PA 30 3.0 parts by weight

Ammoniak, 25%'s 1,0 vægtdelAmmonia, 25% 1.0 weight percent

Konserveringsmiddel 2,0 vægtdelePreservative 2.0 parts by weight

Antiskummiddel 3,0 vægtdeleAnti-foaming agent 3.0 parts by weight

Titandioxid 175,0 vægtdele kornstørrelse 0.2 - 0,4 μ 1.2- Propylenglycol 10,0 vægtdele dispergeres, og dernæst anvendes 2. dispersionen (ved 50% faststof- 710,0 vægtdele indhold) hvortil der sættes 2,0 vægtdele 25%'s ammoniak, hvis pH-værdien ikke ligger over ca. 7.Titanium dioxide 175.0 parts by weight of grain size 0.2 - 0.4 μ 1.2- Propylene glycol 10.0 parts by weight is dispersed and then the second dispersion (at 50% solids - 710.0 parts by weight content) to which 2.0 parts by weight 25% is added ammonia if the pH does not exceed approx. 7th

Under omrøring tilsættes dernæst langsomt en blanding af 3. Butyldiglycolacetat 10,0 vægtdele 1.2- Propylenglycol 27,0 vægtdele.With stirring, a mixture of 3. Butyldiglycol acetate 10.0 parts by weight 1.2- Propylene glycol 27.0 parts by weight is then slowly added.

De under 1. angivne flydende eller opløselige bestanddele med undtagelse af 1,2-propylenglycolen anbringes først i nævnte rækkefølge i en rørebeholder, og deri dispergeres pigmentet med en dissolver. Dernæst tilsættes 1,2-propylenglycol. Af denne pigmentpasta fremstilles en større mængde for at sikre de samme betingelser, f.eks. med hensyn til pigmentdispergeringen, for blandingen med de forskellige dispersioner, der skal afprøves.The liquid or soluble constituents listed below, with the exception of the 1,2-propylene glycol, are first placed in a stirrer in the order in which the pigment is dispersed with a dissolver. Next, 1,2-propylene glycol is added. Of this pigment paste, a greater amount is produced to ensure the same conditions, e.g. with respect to the pigment dispersion, for the mixture with the various dispersions to be tested.

Til fremstilling af de enkelte farver udtages fra pigmentpastaen en tilsvarende andel, som ved den i ovenstående recept nævnte fremgangsmåde blandes med de ca. 1 dag gamle dispersioner under en 13 146677 langsomtgående omrører. Dernæst tilsættes de under 3. nævnte opløsningsmidler. Efter endt konfektionering sigtes farverne.For the preparation of the individual colors, a corresponding proportion is extracted from the pigment paste, which in the method mentioned in the above recipe is mixed with the approx. 1 day old dispersions under a slow stirrer. Next, the solvents mentioned in 3. are added. Once finished, the colors are sieved.

Efter 1 dags henstand påføres disse glansfarver på glasplader og på stålplader, på hvilke der i forvejen er sprøjtet en lufttørrende, pigmenteret, glinsende alkydharpikslak, som er blevet ældet ved 100°C i 24 timer efter tørringen. Der anvendes en filmpåfører med en spaltehøjde på 200 μ. Efter 24 timers tørretid for glansfarverne afprøves disse med hensyn til vådhæftning ved de to, nedenfor beskrevne metoder.After one day's stand, these gloss colors are applied to glass plates and to steel plates on which is already sprayed an air-drying, pigmented, glossy alkyd resin varnish which has been aged at 100 ° C for 24 hours after drying. A film applicator with a gap height of 200 µ is used. After 24 hours drying time for the gloss colors, these are tested for wet adhesion by the two methods described below.

1) Nedslidningsforsøg På en sådan mekanisk nedslidningsmaskine, som f.eks. er beskrevet i tysk offentliggørelsesskrift nr. 2.262.956, der ligner Gardner's vaskbarheds- og nedslidningsmaskine, dog med en ca.1) Wear Testing On such a mechanical wear machine, such as. is described in German Publication No. 2,262,956, which is similar to Gardner's washable and abrasive machine, though with an approx.

1,20 m lang løbestrækning, anbringes de forberedte glasplader på en sådan måde, at de påførte dispersionsfarvefilm ligger vinkelret på børstens løberetning. På grund af løbestrækningens længde kan ca. 15 farver undersøges samtidigt i én forsøgsgang. Der anvendes en svinehårsbørste, der ved afprøvningens begyndelse fugtes med destilleret vand. Under afprøvningen dryppes der ligeledes destilleret vand på børstens løbestrækning, således at børstebanen til stadighed er dækket med en vandfilm. Ved utilstrækkelig vådhæftning skubbes dispersionsfarven efter få børstegange væk fra underlaget af børsten og går af ved grænsen mellem fugtet og tør film. Vådhæft-ningen er desto bedre, jo længere børsten løber inden filmens af-skubning. Der foreligger optimal vådhæftning, når filmen efter 3000 børstegange (1 børstegang er et frem- og tilbageløb) endnu ikke er skubbet af i den fugtede børstebane.1.20 m long running distance, the prepared glass sheets are placed in such a way that the applied dispersion color films are perpendicular to the brush direction of travel. Due to the length of the run, approx. 15 colors are examined simultaneously in one test run. A pig hairbrush is used, which is moistened with distilled water at the beginning of the test. During the test, distilled water is also dripped onto the running distance of the brush, so that the brush path is constantly covered with a water film. In case of insufficient wet adhesion, after a few brushing steps, the dispersion color is pushed away from the base of the brush and goes off at the boundary between moist and dry film. The wet adhesion is the better the longer the brush runs before the film is pushed off. Optimal wet adhesion exists when the film after 3000 brushing operations (1 brushing is a back and forth) has not yet been pushed off in the dampened brush web.

2) Kondensationsforsøg2) Condensation experiments

Her anvendes en retvinklet termostat, der er fyldt halvt op med vand med en temperatur på 50°C, og i hvis gasrum over vandoverfladen der er monteret en ventilator. Den øverste åbning belægges med de forberedte stålplader - med forsøgsfladen nedad - og lukkes derved. Termostaten står i et værelse, der holdes på 23°C.Here is used a right-angle thermostat, which is half filled with water at a temperature of 50 ° C, and in whose gas space above the water surface a fan is mounted. The top opening is coated with the prepared steel sheets - with the test surface facing down - and thereby closed. The thermostat is in a room maintained at 23 ° C.

Ved temperaturforskellen kondenserer vanddamp på pladernes underside og indvirker på glansfarvefilmene. Efter 15 minutters indvirkningstid i hvert tilfælde tages pladerne op og bedømmes.At the temperature difference, water vapor condenses on the underside of the plates and affects the glossy color films. After 15 minutes in each case, the plates are picked up and evaluated.

146477 14146477 14

Utilstrækkelig vådhæftning viser sig ved dannelsen af blærer mellem dispersionsfarven og alkydharpikslakken samt i filmens lette afskubbarhed, f.eks. med fingerspidsen. Ved god vådhæftning er filmen endnu blærefri og ikke afskubbar selv efter 4 timer. Forsøgsresultaterne er angivet i tabel I.Insufficient wet adhesion appears in the formation of blisters between the dispersion color and the alkyd resin lacquer and in the film's easy peelability, e.g. with your fingertip. With good wet adhesion, the film is still blister-free and does not peel even after 4 hours. The test results are given in Table I.

Tabel ITable I

Eksempel Afgnidningsforsøg Bestandighed ved nr._ antal af dobbeltbørstestrøg kondensationsforsøget 1 >3000 >4 timer 2+ 30 10 minutter 3 >3000 >4 timer 4+ 250 10 minutter 5 ^3000 >4 timer 6+ 120 15 minutter 7 >3000 >4 timer 8+ 50 <15 minutter 9 >3000 >4 timer 10+ 70 415 minutter 11 >3000 >4 timer 12+ 110 <^15 minutter 4.Example Rubbing test Resistance at No._ number of double brush strokes condensation test 1> 3000> 4 hours 2+ 30 10 minutes 3> 3000> 4 hours 4+ 250 10 minutes 5 ^ 3000> 4 hours 6+ 120 15 minutes 7> 3000> 4 hours 8+ 50 <15 minutes 9> 3000> 4 hours 10+ 70 415 minutes 11> 3000> 4 hours 12+ 110 <^ 15 minutes 4.

sammenligningseksempler, ikke ifølge opfindelsen.comparative examples, not according to the invention.

U6477 15U6477 15

Eksempel 13Example 13

Eksempel 1 gentages, idet der dog anvendes 2-(acetoacetyl) -oxy-ethylacrylat i stedet"for aceteddikesyreallylester.Example 1 is repeated, however, using 2- (acetoacetyl) oxyethyl acrylate instead of acetic acetic acid allyl ester.

Eksempel 14Example 14

Eksempel 1 gentages, idet der dog anvendes 2-(acetoacetyl)--oxy-ethylmethacrylat i stedet for aceteddikesyreallylester.Example 1 is repeated, however, using 2- (acetoacetyl) oxyethyl methacrylate instead of acetic acetic acid allyl ester.

Eksempel 15Example 15

Eksempel 1 gentages, idet der dog anvendes 2-(acetoacetyl)~ -oxy-propylcrotonat i stedet for aceteddikesyreallylester.Example 1 is repeated, however, using 2- (acetoacetyl) ~ -oxypropylcrotonate instead of acetic acetic acid allyl ester.

Eksempel 16Example 16

Eksempel 1 gentages, idet der dog anvendes 2-(acetoace--tyl-oxy-propylacrylat i stedet for aceteddikesyreallylester.Example 1 is repeated, however, using 2- (acetoacetyl-oxy-propyl acrylate) instead of acetic acetic acid allyl ester.

Eksempel 17Example 17

Eksempel 1 gentages, idet der dog anvendes 2-(acetoace-ty])-oxy-propylmethacrylat i stedet for aceteddikesyreallylester.Example 1 is repeated, however, using 2- (acetoacetyl]) oxy-propyl methacrylate instead of acetic acetic acid allyl ester.

Eksempel 18Example 18

Eksempel 1 gentages, idet der dog anvendes 18 vægtdele 2-(acetoacetyl)-oxy-^thylcrotonat i stedet for 18 vægtdele acetoacetylallylester, og idet der anvendes 613 vægtdele vand.Example 1 is repeated, however, using 18 parts by weight of 2- (acetoacetyl) oxyethylcrotonate instead of 18 parts by weight of acetoacetyl allyl ester and using 613 parts by weight of water.

Afprøvningsresultater.Test Results.

På den i eksempel 12 angivne måde fremstilles der ud fra de i eksempel 13-18 fremstillede dispersioner glansfarver, som afprøves som i eksempel 12 angivet. Resultaterne af afprøvningerne er vist i tabel II.In the manner set forth in Example 12, gloss colors prepared from Examples 13-18 are prepared and tested as in Example 12. The results of the tests are shown in Table II.

146477 16146477 16

Tabel IITable II

Eksempel Afgnidningsforsøg, Bestandighed ved nr._antal af dobbeltbørstestrøg kondensationsforsøget 13 >3000 >*4 timer 14 >3000 ^4 timer 15 >3000 >4 timer 16 >3000 >4 timer 17 >3000 >4 timer 18 >3000 >4 timerExample Trimming test, Resistance at No._number of double brush stroke condensation test 13> 3000> * 4 hours 14> 3000 ^ 4 hours 15> 3000> 4 hours 16> 3000> 4 hours 17> 3000> 4 hours 18> 3000> 4 hours

DK356176A 1975-08-08 1976-08-06 APPLICATION OF ARTIFICIAL DISTRIBUTIONS AS A BINDING AGENT IN LOW PIGMENTED COATING COLORS DK146477C (en)

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DE2947768A1 (en) * 1979-11-27 1981-07-23 Wacker-Chemie GmbH, 8000 München AQUEOUS PLASTIC DISPERSIONS, METHOD FOR THEIR PRODUCTION AND THEIR USE
US4900615A (en) * 1986-03-11 1990-02-13 Union Oil Company Of California Textile materials and compositions for use therein
US4908229A (en) * 1986-03-11 1990-03-13 Union Oil Of California Method for producing an article containing a radiation cross-linked polymer and the article produced thereby
US4966791A (en) * 1986-03-11 1990-10-30 Union Oil Company Of California Methods for manufacturing textile materials
US5053452A (en) * 1986-05-02 1991-10-01 Union Oil Company Of California Pressure sensitive adhesives and manufactured articles
US5185212A (en) * 1986-05-02 1993-02-09 Rohm And Haas Company Acetoacetoxy-alkyl acrylate-containing pressure sensitive adhesives manufactured articles
US4908403A (en) * 1986-05-02 1990-03-13 Union Oil Of California Pressure sensitive adhesives of acetoacetoxy-alkyl acrylate polymers
US4759983A (en) * 1986-05-30 1988-07-26 Union Oil Company Of California Pressure sensitive adhesives and adhesive articles
US5122567A (en) * 1986-05-02 1992-06-16 Union Oil Company Of California Pressure sensitive adhesives of acetoacetoxy-alkyl acrylate polymers
US5435879A (en) * 1986-05-30 1995-07-25 Rohm And Haas Company Methods of using pressure-sensitive adhesives
US5135813A (en) * 1986-09-04 1992-08-04 Union Oil Company Of California Mastic and caulking composite articles
US5120607A (en) * 1986-09-04 1992-06-09 Union Oil Company Of California Mastic and caulking coated substrates
US5055511A (en) * 1986-09-04 1991-10-08 Union Oil Company Of California Mastic and caulking compositions
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