WO2002051953A1 - Voranstrich für beton - Google Patents

Voranstrich für beton Download PDF

Info

Publication number
WO2002051953A1
WO2002051953A1 PCT/IB2001/002247 IB0102247W WO02051953A1 WO 2002051953 A1 WO2002051953 A1 WO 2002051953A1 IB 0102247 W IB0102247 W IB 0102247W WO 02051953 A1 WO02051953 A1 WO 02051953A1
Authority
WO
WIPO (PCT)
Prior art keywords
primer
adhesion
group
primer according
latent hardener
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
PCT/IB2001/002247
Other languages
German (de)
English (en)
French (fr)
Inventor
Gerald Trabesinger
Peter W. Merz
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.)
Sika Schweiz AG
Sika AG
Original Assignee
Sika AG
Sika AG Vorm Kaspar Winkler and Co
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 Sika AG, Sika AG Vorm Kaspar Winkler and Co filed Critical Sika AG
Priority to AU2002215167A priority Critical patent/AU2002215167B2/en
Priority to US10/451,062 priority patent/US6875470B2/en
Priority to JP2002553434A priority patent/JP2004517168A/ja
Priority to NZ526146A priority patent/NZ526146A/en
Priority to AT01983747T priority patent/ATE310781T1/de
Priority to DE50108205T priority patent/DE50108205D1/de
Priority to EP01983747A priority patent/EP1356003B1/de
Publication of WO2002051953A1 publication Critical patent/WO2002051953A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48Macromolecular compounds
    • C04B41/4853Epoxides
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61Coating or impregnation
    • C04B41/62Coating or impregnation with organic materials
    • C04B41/63Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/60After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
    • C04B41/61Coating or impregnation
    • C04B41/70Coating or impregnation for obtaining at least two superposed coatings having different compositions
    • 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • C04B2111/00491Primers

Definitions

  • the present invention relates to new primers for improving the adhesion of substrates, in particular of porous substrates, such as e.g. Concrete, with one or two-component adhesive systems.
  • Primers also referred to as primers, activators or adhesion promoters, are used wherever the adhesive used has no or only limited adhesion to the substrate or substrate.
  • the components of the adhesive system namely the pre-treatment, ie the primer, and the adhesive are matched to each other and to the substrate.
  • Such primers can be physically solidifying or chemically crosslinkable.
  • Pretreatment systems for various substrates are known, but there are no primers on the market for porous substrates that are single-component, free of isocyanates, free of aromatic solvents and can be applied with simple aids such as brushes and in combination with moisture-reactive adhesives or Sealants, in particular with isocyanate-free sealants based on silane groups terminated prepolyers, known as polyurethane hybrid or MS Kaneka systems, have good, aging-resistant adhesion.
  • EP 0 921 140 A1 and US Pat. No. 6,080,817 describe primers with binders containing isocyanate groups, these primers used to apply paint in automobile manufacture.
  • the aim of the present invention is to provide new isocyanate-free primers for improving the adhesion of substrates, in particular of porous substrates, such as, for example, concrete.
  • a primer containing or consisting of at least one epoxy resin, at least one latent hardener and at least one solvent has the desired good affinity for porous substrates, e.g. Concrete (DIN-standardized or sandblasted), clinker absorbent, ceramics, garden slabs, exposed brick and various types of wood (beech, pine, teak, etc.), as well as on non-porous substrates, such as glazed clinker, and thus has good adhesion of the coating material allows.
  • Preferred coating materials are in particular one-component sealants based on silane.
  • the primers according to the invention are also very easy to produce.
  • Suitable epoxy resins are compounds containing aliphatic and aromatic epoxy groups, in particular those which are solid at room temperature.
  • Preferred epoxy resins are: solid epoxy resins based on bisphenol A with a medium molecular weight.
  • Latent hardeners can be selected from the groups of substances, ketimines, aldimines or oxazolidines, cyclic, aliphatic ketimines being preferred.
  • Preferred latent hardeners are: blocked, cycloaliphatic diamines and / or urethane bisoxazolidines.
  • solvents are aliphatic solvents, such as ethyl acetate, butyl acetate, and further acetate-based solvents, acetone, methyl ethyl ketone, hexane, heptane, ethyl alcohol, cyclohexane, etc.
  • the proportion of solvent in the primer according to the invention is - especially for that Application on porous substrates - in the range from 20 to 80% by weight, preferably in the range from 50 to 60% by weight, the viscosity should be between 20 and 200 mPas, in particular between 40 and 80 mPas.
  • the optimal layer thickness in the dry state is between 10 ⁇ m and 200 ⁇ m, in particular between 40 ⁇ and 90 ⁇ .
  • adhesion promoters contain zirconates, titanates or silane groups, the adhesion promoter preferably containing either particularly hydrophobic groups or contains at least one second functional group which is selected from the group comprising epoxy groups, acrylate groups, allyl groups, vinyl groups and mixtures thereof. Via this second functional group, the detention officer is resp. incorporated into the matrix after the curing reaction under the influence of the moisture-released amine compound of the latent hardener.
  • an aminosilane can also be reacted with ketones or aldehydes to form an iminosilane, which is released again after contact with moisture for the crosslinking reaction with the epoxy resin.
  • the adhesion promoter serves, on the one hand, to improve the adhesion quality via chemical and physical processes to the substrate, and on the other hand to offer linking groups to the coating material, which are preferably one-component and isocyanate-free sealants.
  • the primer according to the invention can be used to produce a coating in such a way that it is applied in a suitable layer thickness and, if appropriate after a curing period of preferably 30 to 120 minutes, is covered with a one-component isocyanate-free adhesive based on silane.
  • the primers according to the invention are easy to produce, stable in storage and have good adhesion properties even after stress, in particular after storage for 1 week in a saturated calcium hydroxide solution, and meet the standards DIN 18540F and ISO 11600 25LM. 1) Preparation of the primers according to the invention, Ex. 1 and Ex. 2
  • the first number indicates the evaluation of the liability after 2 weeks of storage in a climatic room (23 ° C, 50% relative humidity).
  • the second number indicates the liability after 2 weeks of air conditioning and 1 week of water storage at room temperature.
  • Examples 1 and 2 show that the primer according to the invention after storage in water guarantees very good adhesion compared to the reference.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paints Or Removers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Holo Graphy (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
PCT/IB2001/002247 2000-12-23 2001-11-28 Voranstrich für beton Ceased WO2002051953A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU2002215167A AU2002215167B2 (en) 2000-12-23 2001-11-28 Undercoating for concrete
US10/451,062 US6875470B2 (en) 2000-12-23 2001-11-28 Undercoating for concrete
JP2002553434A JP2004517168A (ja) 2000-12-23 2001-11-28 コンクリート用下塗り剤
NZ526146A NZ526146A (en) 2000-12-23 2001-11-28 Undercoating for concrete
AT01983747T ATE310781T1 (de) 2000-12-23 2001-11-28 Voranstrich für beton
DE50108205T DE50108205D1 (de) 2000-12-23 2001-11-28 Voranstrich für beton
EP01983747A EP1356003B1 (de) 2000-12-23 2001-11-28 Voranstrich für beton

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00128475A EP1217049A1 (de) 2000-12-23 2000-12-23 Voranstrich für Beton
EP00128475.1 2000-12-23

Publications (1)

Publication Number Publication Date
WO2002051953A1 true WO2002051953A1 (de) 2002-07-04

Family

ID=8170810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/002247 Ceased WO2002051953A1 (de) 2000-12-23 2001-11-28 Voranstrich für beton

Country Status (8)

Country Link
US (1) US6875470B2 (https=)
EP (2) EP1217049A1 (https=)
JP (1) JP2004517168A (https=)
AT (1) ATE310781T1 (https=)
AU (1) AU2002215167B2 (https=)
DE (1) DE50108205D1 (https=)
NZ (1) NZ526146A (https=)
WO (1) WO2002051953A1 (https=)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4151573B2 (ja) * 2003-12-16 2008-09-17 東洋紡績株式会社 硬化型組成物
BRPI0715322A2 (pt) 2006-10-05 2013-07-16 Dow Global Technologies Inc composiÇço de agente ligante melhorada, estrutura ligada e mÉtodo para ligar um painel de vidro À estrutura de um veÍculo
CN101558456B (zh) * 2006-12-19 2013-07-24 陶氏环球技术公司 经改善的用于导电透明基材的复合材料和方法
RU2455329C2 (ru) 2006-12-19 2012-07-10 ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи Добавки, способствующие адгезии, и способы улучшения композиций для покрытия
WO2008077042A1 (en) 2006-12-19 2008-06-26 Dow Global Technologies, Inc. Encapsulated panel assemblies and method for making same
WO2008134110A1 (en) 2007-04-24 2008-11-06 Dow Global Technologies, Inc. One component glass primer including oxazoladine
BRPI0809718A2 (pt) 2007-04-24 2011-09-13 Dow Global Technologies Inc método para ligar um primeiro substrato a um segundo substrato e conjunto de painéis
WO2009009159A1 (en) 2007-07-12 2009-01-15 Dow Global Technologies, Inc. Colored primer compositions and methods
CN101903483B (zh) * 2007-12-18 2014-09-10 陶氏环球技术公司 对玻璃粘合剂具有增强的粘合性的窗玻璃用保护涂层
EP2350211B1 (en) 2008-10-29 2018-02-28 Dow Global Technologies LLC Low energy surface bonding system containing a primer with long open time
CN101928118B (zh) * 2009-06-22 2013-03-27 中冶建筑研究总院有限公司 一种高孔隙率环氧树脂透水混凝土
US8997434B1 (en) * 2011-04-20 2015-04-07 United States Gypsum Company Method of installing a flooring system utilizing gypsum underlayments
US11299619B2 (en) 2011-07-01 2022-04-12 The Boeing Company Composite structure having an inorganic coating adhered thereto and method of making same
US9783937B2 (en) * 2014-01-14 2017-10-10 Advanced Concrete Technologies Llc Pavement joints and methods for treating the same
JP6977751B2 (ja) * 2019-09-19 2021-12-08 宇部興産株式会社 コンクリート構造物及びその製造方法、並びに、タイル構造物
CN113429819A (zh) * 2021-06-07 2021-09-24 泰州市中山涂料有限公司 一种护墙水性界面剂及制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101497A (en) * 1976-12-03 1978-07-18 The United States Of America As Represented By The Secretary Of The Navy Sealant-primer coating
JPH05295329A (ja) * 1992-04-20 1993-11-09 Hitachi Chem Co Ltd フィルム状接着剤の製造方法
EP1048682A2 (en) * 1999-04-28 2000-11-02 Mitsui Chemicals, Inc. Thermosetting resin composition for prestressed concrete tendon, its use and prestressed concrete tendon using the composition
DE10026148A1 (de) * 1999-05-27 2000-12-07 Kansai Paint Co Ltd Epoxyharz-Beschichtungszusammensetzung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63273625A (ja) * 1987-05-01 1988-11-10 Yokohama Rubber Co Ltd:The エポキシ樹脂組成物
JPH0778110B2 (ja) * 1987-05-01 1995-08-23 横浜ゴム株式会社 一液系可撓性エポキシ樹脂組成物
DE4209556A1 (de) * 1992-03-25 1993-09-30 Ruetgerswerke Ag Verfahren und Mittel zum Imprägnieren von mineralischen Materialien
JPH06271373A (ja) * 1993-03-18 1994-09-27 Tonen Corp 湿潤コンクリート面のライニング用プライマー、そのライニング方法及び補強方法
JP4350182B2 (ja) * 1998-10-26 2009-10-21 中国塗料株式会社 防食塗料組成物、防食塗膜および金属基材表面の防食方法
JP3907855B2 (ja) * 1998-12-11 2007-04-18 横浜ゴム株式会社 一液型エポキシ樹脂組成物および一液型防食塗料組成物
JP2000273354A (ja) * 1999-03-26 2000-10-03 Konishi Co Ltd プライマー組成物とそれを用いたコンクリート、モルタルの打継ぎ方法
JP5031940B2 (ja) * 1999-09-10 2012-09-26 三洋化成工業株式会社 コンクリ−トプライマ−
JP2001323214A (ja) * 2000-05-18 2001-11-22 Yokohama Rubber Co Ltd:The プライマー組成物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101497A (en) * 1976-12-03 1978-07-18 The United States Of America As Represented By The Secretary Of The Navy Sealant-primer coating
JPH05295329A (ja) * 1992-04-20 1993-11-09 Hitachi Chem Co Ltd フィルム状接着剤の製造方法
EP1048682A2 (en) * 1999-04-28 2000-11-02 Mitsui Chemicals, Inc. Thermosetting resin composition for prestressed concrete tendon, its use and prestressed concrete tendon using the composition
DE10026148A1 (de) * 1999-05-27 2000-12-07 Kansai Paint Co Ltd Epoxyharz-Beschichtungszusammensetzung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199349, Derwent World Patents Index; Class A21, AN 1993-392931, XP002168682 *

Also Published As

Publication number Publication date
EP1356003B1 (de) 2005-11-23
DE50108205D1 (de) 2005-12-29
AU2002215167B2 (en) 2006-11-30
EP1356003A1 (de) 2003-10-29
EP1217049A1 (de) 2002-06-26
NZ526146A (en) 2004-02-27
US6875470B2 (en) 2005-04-05
JP2004517168A (ja) 2004-06-10
US20040033315A1 (en) 2004-02-19
ATE310781T1 (de) 2005-12-15

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