DE2150736A1 - Outdoor paints - for facades based on a siloxane resin methylmethacrlate copolymer combination - Google Patents

Outdoor paints - for facades based on a siloxane resin methylmethacrlate copolymer combination

Info

Publication number
DE2150736A1
DE2150736A1 DE19712150736 DE2150736A DE2150736A1 DE 2150736 A1 DE2150736 A1 DE 2150736A1 DE 19712150736 DE19712150736 DE 19712150736 DE 2150736 A DE2150736 A DE 2150736A DE 2150736 A1 DE2150736 A1 DE 2150736A1
Authority
DE
Germany
Prior art keywords
paints
water
siloxane resin
methylmethacrlate
siloxane resins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19712150736
Other languages
German (de)
Inventor
Edvard B Dr Grunau
Martin Isink
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoeveling Fa Emil G V
Original Assignee
Hoeveling Fa Emil G V
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hoeveling Fa Emil G V filed Critical Hoeveling Fa Emil G V
Priority to DE19712150736 priority Critical patent/DE2150736A1/en
Publication of DE2150736A1 publication Critical patent/DE2150736A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D125/00—Coating 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 aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/02—Homopolymers or copolymers of hydrocarbons
    • C09D125/04—Homopolymers or copolymers of styrene
    • C09D125/08—Copolymers of styrene
    • C09D125/14—Copolymers of styrene with unsaturated esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes

Abstract

The binder for the paints is a combination of a siloxane resin with a co-/ter- polymer of methylmethacrylate with acrylates, carboxylic acid/ester, vinyl toluene or styrene. A metal soap is pref. added to protect the resin from alkalis. The paint is used for facades of (reinforced) concrete, plaster, limestone or brick. It has good penetration and water repellency even when cracked and is readily pigmented.

Description

Hamburg H· Oktober 1971 Hamburg H October 1971

Wasserabweisend imprägnierende Fassadenschutzfarbe Water-repellent impregnating facade protective paint

Die Erfindung "betrifft wasserabweisend imprägnierende Fassadenfarben auf der Grundlage von Bindemittel-Kombinationen aus Siloxanen und Co- oder Terpolymeren.The invention "relates to water-repellent impregnating agents Facade paints based on binder combinations of siloxanes and copolymers or terpolymers.

Es ist bekannt, daß neuzeitliche Fassadenfarben entweder auf der Basis spezieller Kunstharzpolymere oder auch spezieller Lackharze hergestellt werden; So z.B. aus:It is known that modern facade paints either are produced on the basis of special synthetic resin polymers or special lacquer resins; For example from:

Vinylchlorid - CopolymerisatenVinyl chloride copolymers

ChIorkaut sc hukChIorkaut sc huk

Copolymeren von AcrylsäureesternCopolymers of acrylic acid esters

Copolymeren von Acrylsäureestern mit StyrolCopolymers of acrylic acid esters with styrene

und Vinyltoluol Siloxanharzen.and vinyl toluene siloxane resins.

Derartige Verbindungen zeigen mit Ausnahme von Siloxanharzen als Bindemittel für Fassadenfarben z.B. folgende Nachteile:With the exception of siloxane resins as binders for facade paints, such compounds show, for example, the following disadvantages:

1. Sie liegen, wie auch die Kunstharz-Dispersionsfarben, nur als Film auf der Baustoffoberfläche auf und werden früher oder später vom Baustoff (Beton, Putz, Kalksandstein und Ziegelmauerwerk) abgestoßen.1. Like the synthetic resin emulsion paints, they only lie as a film on the building material surface and sooner or later will be removed from the building material (concrete, plaster, sand-lime brick and Brickwork).

2. Beim Aufreißen dea Farbanstriches ist der darunterliegende Baustoff ohne besondere Vorbehandlung gegenüber eindringendem Wasser ungeschützt. Bei Stahlbeton erfolgt dann Korrosion des Stahls.2. When the paint is torn open, the underlying building material is without any special pre-treatment against penetrating Water unprotected. In the case of reinforced concrete, the steel then corrodes.

3. Das Wasser hat auf Fassadenfarben auf der Grundlage obiger Bindemittel keine derart erhöhte Grenzflächenspannung, um von einer echten wasserabweisenden Wirkung zu sprechen.3. The water has to be based on facade paints above Binder does not have such an increased interfacial tension to speak of a real water-repellent effect.

309816/0968309816/0968

Die Zusammenhänge der unter 1-3 angeführten Nachteile sind in der Fachliteratur hinreichend publiziert:The connections between the disadvantages listed under 1-3 have been sufficiently published in the specialist literature:

Grünau "Fassade und Wasserhaushalt der Wand"Grünau "Facade and water balance of the wall"

(Verlagsgesellschaft Rudolf Müller, Köln - 1967)(Rudolf Müller Publishing Company, Cologne - 1967)

Grünau "Bautenschutz und Bautenschutzmittel"Grünau "Building protection and building protection agents"

(Verlagsgesellschaft Rudolf Müller, Köln - 1970)(Rudolf Müller Publishing Company, Cologne - 1970)

Grunau-BenninghoffGrunau-Benninghoff

"Korrosionsverhalten und Korrosionsschutz von Stahl in Beton""Corrosion behavior and corrosion protection of steel in concrete"

(Verlagsgesellschaft Rudolf Müller, Köln - 1971).(Rudolf Müller publishing company, Cologne - 1971).

Es ist bekannt, daß pigmentierte Passadenfarben auf der Grundlage reiner Siloxanharze zwar in den Baustoff eindringen und diesen auch bei Rißbildung aufgrund der erhöhten Grenzflächenspannung der Siloxanharze vor eindringendem Wasser schützen, doch sind solche pigmentierten Fassadenfarben nur bedingt verwendbar, da durch die unzureichende Pigmentaufnahmefähigkeit der bisher bekannten Siloxanharze andere farbtechnische Nachteile (wie z.B. Kreidung, Verseifbarkeit u.a.) auftreten können.It is known that pigmented passage paints based on pure siloxane resins penetrate the building material and this also when cracks form due to the increased interfacial tension of the siloxane resins before water penetrates protect, but such pigmented facade paints can only be used to a limited extent because of their inadequate pigment absorption the previously known siloxane resins have other technical color disadvantages (such as chalking, saponifiability, etc.) may occur.

Es wurde nun überraschenderweise gefunden, daß Bindemittel-Kombinationen aus Siloxanharzen mit den Co- und Terpolymeren von Methylmethacrylat, die entweder andere Acrylsäureester oder z.B. auch Vinyltoluol oder Styrol enthalten, die oben angeführten Nachteile nicht aufweisen. Dabei wurde zusätzlich gefunden, daß die Verträglichkeit oben genannter Go- und Terpolymere mit Siloxanharzen durch ein Polymerisieren von polaren Gruppen (wie z.B. Carboxylgruppen) erheblich verbessert wird.It has now surprisingly been found that binder combinations from siloxane resins with the copolymers and terpolymers of methyl methacrylate, which are either other acrylic acid esters or, for example, also contain vinyl toluene or styrene, which do not have the disadvantages mentioned above. It was additionally found that the compatibility of the above Go- and terpolymers with siloxane resins by polymerizing polar groups (such as carboxyl groups) is significantly improved.

Diese Bindemittel-Kombinationen dringen wie die reinen Siloxanharze in den Baustoff ein, sie haben eine echte Wasserabweisung im Sinne einer erhöhten GrenzflächenspannungThese binder combinations penetrate the building material like pure siloxane resins, they have a real one Water repellency in terms of increased interfacial tension

309816/Q968 -3-309816 / Q968 -3-

des Wassers, und sie vermögen damit auch beim Auftreten von Rissen den Baustoff vor eindringendem Wasser zu schützen.of water, and they are able to do so when Cracks to protect the building material from penetrating water.

Gleichzeitig haben diese Bindemittel-Kombinationen gegenüber reinen Siloxanharzen den Vorteil der besseren Pigmentierbar- ^ceit.At the same time, these binder combinations have opposite pure siloxane resins have the advantage of better pigmentability.

Da die Siloxanharze, allein oder in Kombination mit anderen Kunstharzpolymeren, alkalisch empfindlich sind, ist es notwendig, die Siloxanharze gegen alkalische wässrige Medien aus dem Baustoff zu schützen. Dieser Schutz wird entweder mit einer festen pulverförmigen oder in organischen Lösungsmitteln löslichen Metallseife zuverlässig gewährleistet.Since the siloxane resins, alone or in combination with other synthetic resin polymers, are sensitive to alkaline, it is necessary to protect the siloxane resins against alkaline aqueous media from the building material. This protection will either reliably guaranteed with a solid metal soap in powder form or soluble in organic solvents.

Die in folgenden Beispielen genannten Prozente beziehen sich auf das Gewicht.The percentages given in the following examples are based on weight.

BestandteileComponents SiloxanharzSiloxane resin aus Methyl-from methyl Beispiel 1example 1 Beispiel 2Example 2 1.1. CopolymerisatCopolymer VinyltoluolVinyl toluene 5 * 5 * 5 #5 # 2.2. methacrylat -methacrylate - WeichmacherPlasticizers LichtstabilerMore light stable IO $> IO $> 13 %13% 3.3. Pigmentpigment K CÖÜK CÖÜ 6 % 6 % 4.4th Füllstofffiller 20 % 20 % 20 $$ 20 5.5. MetallseifeMetal soap 10 $$ 10 15 #15 # 6.6th Lösungsmittelsolvent 1 tsL1 tsL X /bX / b 7.7th 49 $$ 49 4o % 4o % 100 $$ 100 100 $$ 100

Bei Beispiel 1 handelt es sich um eine pigmentierte wasserabweisend imprägnierende Fassadenfarbe zum Schutz von Sichtbeton. Example 1 is a pigmented water-repellent Impregnating facade paint to protect exposed concrete.

Bei Beispiel 2 handelt es sich um eine pigmentierte wasserabweisende imprägnierende Fassadenfarbe zum Schutz von Putzen,Example 2 is a pigmented water-repellent one impregnating facade paint to protect plaster,

309816/098 8309816/098 8

Claims (2)

PatentansprücheClaims 1. Wasserabweisend imprägnierende Fassadenfarben auf der Basis von Bindemittel-Kombinationen dadurch gekennnzeichnet, daß sie neben Siloxanharzen Co- oder lerpolymere von Methylmethacrylat mit Acrylsäureestern, Carbonsäuren bzw. Carbonsäureester, Vinyltoluol oder Styrol enthalten.1. Water-repellent impregnating facade paints on the The basis of binder combinations is characterized in that, in addition to siloxane resins, they are co- or lerpolymers of methyl methacrylate with acrylic acid esters, carboxylic acids or carboxylic acid esters, vinyl toluene or styrene. 2. Wasserabweisend imprägnierende Passadenfarben gemäß Anspruch 1) dadurch gekennzeichnet, daß sie zur Abschirmung der Siloxanharze gegenüber alkalischen Medien zusätzlich Metallseifen enthalten.2. Water-repellent impregnating passage paints according to claim 1), characterized in that they are used for Shielding of the siloxane resins against alkaline media also contain metal soaps. 6/OiJf «'■6 / OiJf «'■
DE19712150736 1971-10-12 1971-10-12 Outdoor paints - for facades based on a siloxane resin methylmethacrlate copolymer combination Pending DE2150736A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712150736 DE2150736A1 (en) 1971-10-12 1971-10-12 Outdoor paints - for facades based on a siloxane resin methylmethacrlate copolymer combination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712150736 DE2150736A1 (en) 1971-10-12 1971-10-12 Outdoor paints - for facades based on a siloxane resin methylmethacrlate copolymer combination

Publications (1)

Publication Number Publication Date
DE2150736A1 true DE2150736A1 (en) 1973-04-19

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ID=5822099

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712150736 Pending DE2150736A1 (en) 1971-10-12 1971-10-12 Outdoor paints - for facades based on a siloxane resin methylmethacrlate copolymer combination

Country Status (1)

Country Link
DE (1) DE2150736A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014097309A1 (en) 2012-12-17 2014-06-26 Asian Paints Ltd. Stimuli responsive self cleaning coating
EP3279273A1 (en) * 2016-08-05 2018-02-07 Malgorzata Brzezinska-Kisiel P.P.H. "ALCHEM" A composition, use of the composition, an impregnant and a method for the preparing the composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014097309A1 (en) 2012-12-17 2014-06-26 Asian Paints Ltd. Stimuli responsive self cleaning coating
EP3279273A1 (en) * 2016-08-05 2018-02-07 Malgorzata Brzezinska-Kisiel P.P.H. "ALCHEM" A composition, use of the composition, an impregnant and a method for the preparing the composition

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