EP2504293A1 - Agent dispersant - Google Patents

Agent dispersant

Info

Publication number
EP2504293A1
EP2504293A1 EP10773041A EP10773041A EP2504293A1 EP 2504293 A1 EP2504293 A1 EP 2504293A1 EP 10773041 A EP10773041 A EP 10773041A EP 10773041 A EP10773041 A EP 10773041A EP 2504293 A1 EP2504293 A1 EP 2504293A1
Authority
EP
European Patent Office
Prior art keywords
use according
comonomer
copolymer
acid
mol
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.)
Ceased
Application number
EP10773041A
Other languages
German (de)
English (en)
Inventor
Klaus Prosiegel
Johann Goldbrunner
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.)
Master Builders Solutions Deutschland GmbH
Original Assignee
BASF Construction Polymers GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF Construction Polymers GmbH filed Critical BASF Construction Polymers GmbH
Priority to EP14169502.3A priority Critical patent/EP2769963A1/fr
Priority to EP10773041A priority patent/EP2504293A1/fr
Publication of EP2504293A1 publication Critical patent/EP2504293A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/04—Carboxylic acids; Salts, anhydrides or esters thereof
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B24/2641—Polyacrylates; Polymethacrylates
    • C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • 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
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/24—Macromolecular compounds
    • C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C04B28/14—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 calcium sulfate cements
    • C04B28/145—Calcium sulfate hemi-hydrate with a specific crystal form
    • 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
    • C04B28/14—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 calcium sulfate cements
    • C04B28/16—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 calcium sulfate cements containing anhydrite, e.g. Keene's cement
    • 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
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/40—Surface-active agents, dispersants
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/60—Flooring materials
    • C04B2111/62—Self-levelling compositions

Definitions

  • the present invention is the use of a dispersing composition based on a polycarboxylate as a flow agent for calcium sulfate-containing building material mixtures in the form of flow screeds or leveling compounds.
  • copolymers based on a Polycarboxylatethers as flow agents for building chemical compositions, d. h., hydraulically setting and hardening compositions, is well known.
  • Such copolymers consist essentially of an olefinically unsaturated monocarboxylic acid comonomer and an ester or a salt thereof and / or an olefinically unsaturated sulfonic acid comonomer on the one hand, and a comonomer with ether function on the other hand.
  • Such copolymers are described in greater detail, for example, in EP 0 537 870 A1, EP 0 736 553 B1, EP 1 138 698 A1, EP 1 189 955 B1 and EP 1 902 085 B1.
  • Calcium sulphate hemihydrate may form at least two crystal forms, namely oc-calcined gypsum and / or beta-calcined gypsum, depending on the manufacturing process.
  • the hemihydrate reacts with sufficient amounts of water and is converted into interlocking dihydrate crystals, thereby curing the slurry.
  • Gypsum-containing compositions are poured into molds, so as to obtain, for example, prefabricated components, or in the production of so-called Gipskar- used in dry construction of interiors or also for the production of thermal insulation composite systems, it is desirable if the spatial products obtained are dimensionally stable, Therefore, the mixing water used in the slurry must be expelled by higher temperatures within a very short time. This results in a short-term, but strong heat on the green body, which often cause cracks and flaking. It is therefore not only from an energetic point of view, trying to reduce the mixing water as possible, in which case, however, then the problem of insufficient flowability of the uncured raw mass again occurs.
  • U.S. Patent 7,338,990 B2 describes a mixture containing cement and calcined gypsum and, moreover, a polycarboxylate dispersant.
  • the dispersant is a copolymer based on an oxyalkylene glycol alkyl ether and unsaturated dicarboxylic acid derivatives. This mixture is used to make products for outdoor use.
  • their low strength and in particular early strength has proven to be disadvantageous. This effect is comparable to the known retarder of the type of fruit acids, as z. As tartaric acid and citric acid.
  • US Pat. No. 7,056,964 B2 likewise describes a mixture which can be processed with a defined amount of mixing water to form a slurry which can be used as a "float" with a high strength from a calcium sulfate hemihydrate in which at least 25% must be in the ⁇ -form and a polycarboxylate flow agent.
  • the flow agent is a copolymer of an oxyalkylene alkyl ether and an unsaturated dicarboxylic acid.
  • the flow agents are copolymers of three monomer subunits.
  • the most well-known building blocks here are acrylic acid and acrylamide, maleic acid and the so-called "VOBPEG” (vinyl-oxybutyl-polyethylene-glycol ether)
  • VOBPEG vinyl-oxybutyl-polyethylene-glycol ether
  • R1 is for and R 2 is H or an aliphatic hydrocarbon radical having 1 to 5 C atoms
  • R3 unsubstituted or substituted aryl radical and preferably phenyl
  • R 4 H or an aliphatic hydrocarbon radical having 1 to 20 C atoms, a cycloaliphatic hydrocarbon radical having 5 to 8 C atoms, a substituted aryl radical having 6 to 14 C atoms or a Representatives of the series
  • R5 and R7 are each an alkyl, aryl, aralkyl, or alkaryl radical and R6 is an alkylidene, arylidene, aralkylidene or alkarylidene radical, and
  • n are independently 2, 3, 4 or 5
  • x and y independently represent an integer ⁇ 350 and
  • copolymers mentioned with only two comonomer units are known from the already mentioned EP 1 902 085 B1, but not in connection with flow screeds or leveling compounds, but exclusively in connection with gypsum systems.
  • the present invention provides in a preferred embodiment, the flow agents based on only 2 monomer units in an amount of 0.002 to 1, 0 wt .-%, and preferably 0.01 to 0, 3 active substance, in each case based on the total composition of the building material mixture to use.
  • Particularly advantageous results can be achieved with flow screeds, but also with
  • Achieve leveling compounds according to the invention 15 to 98 wt .-%, preferably 15 to 75 wt .-% and in particular 25 to 40 wt .-%, each based on the total composition of the building material mixture of calcium sulfate-based binder and in particular calcium sulfate hemihydrate and / or Anhydrite included.
  • the invention also provides that the respective building material mixtures also contain cements as hydraulic binders in addition to the stated gypsum proportions.
  • cements as hydraulic binders in addition to the stated gypsum proportions.
  • Cements such as Portland cement of the type CEM I, CEM II, CEM III, CEM IV and / or CEM V are preferably suitable; but also come in white cements, aluminate cements or mixtures of the mentioned cement forms.
  • Particularly preferred are calcium hydroxide and / or other alkaline salts with hydraulic properties.
  • the polycarboxylate fluidizer in dry form, preferably in powder form and more preferably in conglomerate-free form. Since the dispersant is predominantly processed simultaneously with the mixing water, it should preferably be used in water-soluble form, which the present invention also contemplates.
  • the copolymer contains the comonomer component 1 in proportions of 30 to 99 mol% and the comonomer component 2 in proportions of 70 to 1 mol%. Preferred proportions with respect to the comonomer component 1 are 40 to 90 mol% and with respect to the comonomer component 2 60 to 10 mol%.
  • acrylic acid as comonomer component 1 but also methacrylic acid, crotonic acid, isocrotonic acid, allylsulfonic acid, vinylsulfonic acid and their suitable salts, and their alkyl or hydroxyalkyl esters in question, wherein the alkyl radicals should have 1 to 10 carbon atoms.
  • the copolymer in addition to the two comonomer components 1 and 2 has additional components in copolymerized form.
  • dicarboxylic acids are excluded.
  • the additional components may be sterols, acrylamides and / or hydrophobic compounds, ester structural units, polypropylene oxide and polypropylene oxide / polyethylene oxide units being particularly preferred. If the copolymer contains the additional components, these should be present in proportions of up to 5 mol%, preferably from 0.05 to 3.0 mol% and in particular from 0.1 to 1.0 mol%.
  • the present invention provides that it is an allyl or vinyl group-containing polyether.
  • the flux essential to the invention can also be used in combination with other dispersants in connection with its use in flow screeds and putties. These may then contain as comonomers quite unsaturated dicarboxylic acids and / or dicarboxylic acid derivatives.
  • the performance of the superplasticizers used can additionally be adapted to the respective intended use, but also the respective production methods can be optimized.
  • the present invention comprises application variants which involve the production of flow screeds having a layer thickness of up to 10 cm and preferably up to 6 cm, but also of putty compounds having a preferred layer thickness of up to 20 mm.
  • the flow screeds should in particular be based on a calcium sulfate-based hydraulic binder and more preferably on the basis of anhydrite and / or calcium sulphate hemihydrate and the putties preferably based on potassium sulphate hemihydrate.
  • the known superplasticizers based on polycarboxylate ethers can be supplied to new fields of use by omitting dicarboxylic acids as comonomer unit in the form of copolymers based on only 2 comonomer units, which is particularly advantageous from an economic point of view. because the dosage can be significantly reduced and also early strength values are achieved, which lead to improved product qualities.
  • Melflux ® is a registered trademark of BASF Construction Polymers GmbH
  • Melflux ® is a registered trademark of BASF Construction Polymers GmbH

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne des compositions à effet dispersant en tant qu'agent solvant pour des mélanges de matériaux de construction contenant du sulfate de calcium sous forme de chapes fluides et de mastics qui contiennent un copolymère sous forme d'un éther de polycarboxylate. Le copolymère est exempt d'acides dicarboxyliques en tant que comonomère. Des agents dispersants peuvent être utilisés dans une quantité de 0,002 à 1,0 % en poids et confèrent de cette manière aux produits finaux une résistance initiale hautement améliorée, des épaisseurs de couche jusqu'à 10 cm pouvant être produites dans le secteur des sols.
EP10773041A 2009-11-25 2010-10-26 Agent dispersant Ceased EP2504293A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14169502.3A EP2769963A1 (fr) 2009-11-25 2010-10-26 Agent Dispersant
EP10773041A EP2504293A1 (fr) 2009-11-25 2010-10-26 Agent dispersant

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09177093 2009-11-25
PCT/EP2010/066148 WO2011064058A1 (fr) 2009-11-25 2010-10-26 Agent dispersant
EP10773041A EP2504293A1 (fr) 2009-11-25 2010-10-26 Agent dispersant

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP14169502.3A Division EP2769963A1 (fr) 2009-11-25 2010-10-26 Agent Dispersant

Publications (1)

Publication Number Publication Date
EP2504293A1 true EP2504293A1 (fr) 2012-10-03

Family

ID=43430856

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14169502.3A Withdrawn EP2769963A1 (fr) 2009-11-25 2010-10-26 Agent Dispersant
EP10773041A Ceased EP2504293A1 (fr) 2009-11-25 2010-10-26 Agent dispersant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP14169502.3A Withdrawn EP2769963A1 (fr) 2009-11-25 2010-10-26 Agent Dispersant

Country Status (7)

Country Link
US (1) US20130005862A1 (fr)
EP (2) EP2769963A1 (fr)
KR (1) KR20120123290A (fr)
CA (1) CA2781842A1 (fr)
MX (1) MX2012006055A (fr)
RU (1) RU2012126310A (fr)
WO (1) WO2011064058A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10752551B2 (en) 2015-03-09 2020-08-25 Uzin Utz Ag Construction chemical formulation
CN112033480A (zh) * 2020-08-13 2020-12-04 宁波北新建材有限公司 一种硫酸钾流量监控方法及监控装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537870A1 (fr) 1991-10-18 1993-04-21 W.R. Grace & Co.-Conn. Copolymères d'ethers insaturés éthyléniquement utilisables comme superplastifiants pour ciment hydraulique
DE19513126A1 (de) 1995-04-07 1996-10-10 Sueddeutsche Kalkstickstoff Copolymere auf Basis von Oxyalkylenglykol-Alkenylethern und ungesättigten Dicarbonsäure-Derivaten
FR2763065B1 (fr) * 1997-05-12 1999-07-30 Lafarge Sa Composition autonivelante a base de ciment
DE19926611A1 (de) 1999-06-11 2000-12-14 Sueddeutsche Kalkstickstoff Copolymere auf Basis von ungesättigten Mono- oder Dicarbonsäure-Derivaten und Oxyalkylenglykol-Alkenylethern, Verfahren zu deren Herstellung und ihre Verwendung
FR2807212A1 (fr) 2000-03-31 2001-10-05 Atofina Structure comprenant un primaire fluore et electrode a base de cette structure
DE10063291A1 (de) * 2000-12-19 2002-06-20 Skw Polymers Gmbh Verwendung von Fließmitteln auf Polycarboxylat-Basis für Anhydrit-basierte Fließestriche
US7338990B2 (en) 2002-03-27 2008-03-04 United States Gypsum Company High molecular weight additives for calcined gypsum and cementitious compositions
JP2005521623A (ja) 2002-03-27 2005-07-21 ユナイテツド ステイツ ジプサム カンパニー スプレー可能で機械加工可能な媒体
DE10313937A1 (de) * 2003-03-27 2004-10-14 Wacker Polymer Systems Gmbh & Co. Kg Dispergiermittel
US20080017078A1 (en) * 2005-06-14 2008-01-24 Manfred Bichler Liquid admixture composition
DE102006027035A1 (de) * 2005-06-14 2007-01-11 Basf Construction Polymers Gmbh Polyether-haltiges Copolymer
US7875114B2 (en) * 2005-06-14 2011-01-25 United States Gypsum Company Foamed slurry and building panel made therefrom
US7261772B1 (en) * 2006-10-17 2007-08-28 Lyondell Chemical Technology, L.P. Gypsum composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011064058A1 *

Also Published As

Publication number Publication date
WO2011064058A1 (fr) 2011-06-03
KR20120123290A (ko) 2012-11-08
US20130005862A1 (en) 2013-01-03
RU2012126310A (ru) 2013-12-27
EP2769963A1 (fr) 2014-08-27
CA2781842A1 (fr) 2011-06-03
MX2012006055A (es) 2012-12-05

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