HU9901178A2 - Method for producing coloured concrete bodies - Google Patents

Method for producing coloured concrete bodies Download PDF

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Publication number
HU9901178A2
HU9901178A2 HU9901178A HU9901178A HU9901178A2 HU 9901178 A2 HU9901178 A2 HU 9901178A2 HU 9901178 A HU9901178 A HU 9901178A HU 9901178 A HU9901178 A HU 9901178A HU 9901178 A2 HU9901178 A2 HU 9901178A2
Authority
HU
Hungary
Prior art keywords
pigment
process according
characterized
organic pigment
polymer
Prior art date
Application number
HU9901178A
Other languages
Hungarian (hu)
Inventor
Andreas Drechsler
Daniel Neupert
Silke Werner
Original Assignee
Braas 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
Family has litigation
Priority to DE19533081A priority Critical patent/DE19533081C2/en
Application filed by Braas Gmbh. filed Critical Braas Gmbh.
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7771522&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HU9901178(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of HU9901178A2 publication Critical patent/HU9901178A2/en

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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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • 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
    • C04B2111/00586Roofing materials
    • C04B2111/00594Concrete roof tiles

Abstract

The present invention relates to a process for the production of colored letter bodies, in particular coloring tiles, by adding a pigment to a crude letter mixture, in the form of a thermoplastic cement, in which the organic pigment is water-dispersed. Pale polymer dispersions containing styrene and / or pure acrylate are preferred. Among the organic pigments, phthalocyanine and China acridine pigments are particularly preferred. ŕ

Description

PROCEDURE FOR THE PRODUCTION OF COLORFUL CONCRETE

The present invention relates to a process for producing colored concrete bodies, in particular colored concrete roof tiles, by adding pigment to the unprocessed concrete mixture.

Colored concrete bodies are used, for example, as roof tiles, paving stones, concrete slabs. Generally, such concrete bodies are colored with inorganic pigments, preferably mineral pigments. Various iron oxides, as well as chromium oxides or spinel compounds such as cobalt alumina, are used. These types of pigments have been proven to be successful and durable for many years. However, relatively inexpensive inorganic pigments are required, especially for the production of blue tones. In addition, such pigments have a relatively low color intensity.

It is an object of the present invention to provide a process which makes it possible to produce permanently colored concrete bodies with suitable pigments which are stable to outdoor use and are light, particularly UV resistant, resistant to alkalis and heat.

The object of the invention can be achieved by adding to the unprocessed concrete mix a cement-compatible aqueous polymer dispersion in which an organic pigment is dispersed.

The unprocessed concrete mixture can then be formed into bodies and cured in the usual way.

So far, organic pigments have been thought to be unsuitable for coloring concrete bodies (see, for example, A. M. Veit, Proposed Ways of Improving Colored Concrete Products,

87414-6766 BÉ / Pk ··· · Published in Betonwerk + Fertigteil-Technik, 11/1994, 92-100. Organic pigments cannot be properly bonded to the hydraulically curing matrix. It follows that such pigments are gradually washed away and the concrete body fades over time and in any case deteriorates in quality.

The process of the present invention enables the permanent incorporation of organic pigments into the matrix of the concrete body by binding the organic pigment in a cement-compatible polymer dispersion, thereby avoiding leaching. What is most important for the success of the process of the invention is that a dispersion is formed which contains at least a dispersed organic polymer and a coloring agent. When the dye is dispersed in the form of a pigment in an aqueous polymer dispersion, the polymer particles are deposited on the surface of the pigment particles and are maximally surrounded. Thus, the pigment particles are enveloped and protected by the polymer particles. When the dispersion dries, the pigment particles are attached to the plastic matrix. The same applies to chemically bound pigments. In the case of aqueous dispersions, the dispersion is not re-dispersible and has a high molecular weight. In other words, after drying the original dispersion, a plastic is formed which cannot be reconstituted by adding more water to the dispersion. The object of the invention is thus achieved, namely to produce permanently colored concrete bodies.

Certain organic pigments have a coloration equivalent to 20 times that of inorganic pigments of the same color. In other words, less organic pigment is needed to produce the same color intensity.

• ·· ·

In addition, a significantly higher color intensity can be achieved at a much lower cost for the concrete body than for inorganic pigments.

In addition, shades that are not possible with inorganic pigments can be formed.

Of the cement-compatible polymer dispersions, aqueous polymer dispersions wherein the polymer contains styrene and / or pure acrylate are preferred. However, any polymer dispersion having a high molecular weight is stable in cement and is not redispersible. Typical high molecular weight polymers have a molecular weight of about. 10 6 g / mol.

Preferably, the polymer dispersion contains from 5% to 30% by weight of an organic pigment.

A wetting and / or dispersing agent may be added to increase the color intensity; it is also possible to prepare mixtures in which the pigment does not precipitate.

Preferably, the polymer dispersion is added to the unprocessed concrete mix in an amount such that the pigment / cement weight ratio is between 0.002 and 0.05.

Particularly preferred organic pigments are light refractory materials such as phthalocyanine or China acridone pigment.

For example, the phthalocyanine pigment can be produced in various colors from blue copper phthalocyanine to green hexadecachlorophthalocyanine.

Of course, the pigment composition may also contain various organic pigment mixtures and, if desired, an inorganic pigment may be added. In the process of the invention, it is possible to permanently bond a pigment, such as carbon black, to the concrete.

4 ·· »

The organic dye molecules may contain substituents which, for example, allow copolymerization with the dispersion polymer so that the organic pigment is chemically attached to the polymer chain.

The invention is illustrated by the following examples.

Example 1 Copper phthalocyanine (g) was dispersed in a dissolution vessel for 15 minutes with 950 g of styrene acrylate dispersion (LDM 6880, 50%, Hoechst). 16.8 grams of the resulting composition are added to a crude concrete mix made from 1350 g of 0-3 mm sand, 420 g of CEM I 42.5 R cement and 135 g of water. The colored concrete mixture is formed into bodies. After forming the shaped bodies, a light blue concrete body is obtained.

Example 2

Copper phthalocyanine (300 g) was dispersed in 700 g of a pure acrylate dispersion (B60A, 50%, Rohm & Haas) for 15 minutes. 70 g of the resulting composition are added to a crude concrete mix made from 1350 g of 0-3 mm sand, 420 g of CEM I 42.5 R cement and 120 g of water. The concrete bodies produced from the mixture have an intense blue color.

Example 3

100 g of China acridone pigment is dispersed in a solution vessel with 600 g of styrene acrylate dispersion (LDM 6880, 50%, Hoechst) for 15 minutes. 43 g of the resulting composition are added to a crude concrete mix made from 1350 g of 0-3 mm particle size, 420 g of CEM I 42.5 R cement and 109 g of water.

After forming and curing, a light purple concrete body is obtained.

Example 4

150 g of China acridone pigment is dispersed in a solution vessel for 15 minutes with 300 g of styrene acrylate dispersion (LDM 6880, 50% ratio, Hoechst), 63.3 g of the resulting composition are added to a crude concrete mixture of 1350 g of 0-3 mm sand, 420 g CEM I is prepared from 42.5 R cement and 109 g water. After forming and curing, an intense purple concrete body is obtained.

Claims (8)

  1. PATENT CLAIMS
    A process for producing colored concrete bodies, in particular colored roof tiles, by adding pigment to the raw concrete mix, characterized in that an aqueous polymeric dispersion compatible with cement in which the organic pigment is dispersed is added.
  2. Process according to claim 1, characterized in that the polymer in the polymer dispersion comprises styrene and / or pure acrylate.
  3. The process according to claim 1 or 2, characterized in that the polymer dispersion contains from 5 to 30% by weight of an organic pigment.
  4. 4. A process according to any one of claims 1 to 3, characterized in that the polymer dispersion comprises a wetting and / or dispersing agent.
  5. 5. A process according to any one of claims 1 to 4, characterized in that the ratio of pigment to cement in the raw concrete mix is between 0.002 and 0.05.
  6. 6. A process according to any one of claims 1 to 3, wherein the organic pigment is a phthalocyanine pigment.
  7. 7. A process according to any one of claims 1 to 3, wherein the organic pigment is a China acridone pigment.
  8. 8. A process according to any one of claims 1 to 3, characterized in that the organic pigment is chemically bonded in the polymer chain.
HU9901178A 1995-09-07 1996-09-04 Method for producing coloured concrete bodies HU9901178A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19533081A DE19533081C2 (en) 1995-09-07 1995-09-07 Process for the production of colored concrete bodies

Publications (1)

Publication Number Publication Date
HU9901178A2 true HU9901178A2 (en) 1999-08-30

Family

ID=7771522

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9901178A HU9901178A2 (en) 1995-09-07 1996-09-04 Method for producing coloured concrete bodies

Country Status (19)

Country Link
US (2) US6090329A (en)
EP (1) EP0848691B1 (en)
JP (1) JP3263398B2 (en)
CN (1) CN1092159C (en)
AT (1) AT188197T (en)
AU (1) AU695856B2 (en)
BR (1) BR9610124A (en)
CA (1) CA2231264A1 (en)
DE (3) DE19533081C2 (en)
DK (1) DK0848691T3 (en)
ES (1) ES2142609T3 (en)
GR (1) GR3032756T3 (en)
HU (1) HU9901178A2 (en)
MY (1) MY118355A (en)
NO (1) NO980977D0 (en)
NZ (1) NZ318392A (en)
PL (1) PL187414B1 (en)
PT (1) PT848691E (en)
WO (1) WO1997009284A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533081C2 (en) * 1995-09-07 1998-11-26 Braas Gmbh Process for the production of colored concrete bodies
CA2263667C (en) * 1999-03-15 2002-02-26 Axel J. Societe En Commandite Processes for manufacturing pigment granules used in the colouring of concrete
EP1237825B1 (en) * 1999-12-03 2006-04-19 Sun Chemical Corporation Organic pigment dispersion for coloring building materials
CA2389885A1 (en) * 2002-06-19 2003-12-19 Smart Landscape Colors Inc. Process of colouring concrete with syringe-type metering system for liquid colours
US20040121082A1 (en) * 2002-10-22 2004-06-24 Jack Dunnous Method and apparatus for producing multi-color concrete
US7241500B2 (en) 2003-10-06 2007-07-10 Certainteed Corporation Colored roofing granules with increased solar heat reflectance, solar heat-reflective shingles, and process for producing same
US7815728B2 (en) * 2008-05-02 2010-10-19 L. M. Scofield Company High SRI cementitious systems for colored concrete
DE102010003999A1 (en) 2009-05-12 2011-01-05 Harold Scholz & Co. Gmbh New pigment systems for coloring cementitious systems, in particular concrete
US9580357B2 (en) 2009-08-20 2017-02-28 Certainteed Corporation Roofing granules, roofing products including such granules, and process for preparing same
US8637116B2 (en) * 2009-08-20 2014-01-28 Certainteed Corporation Process for preparing roofing granules comprising organic colorant, with improved luster, and roofing products including such granules
US20130266370A1 (en) * 2012-03-16 2013-10-10 Intecrete, Llc Multi-layered cement compositions containing photocatalyst particles and method for creating multi-layered cement compositions containing photocatalyst particles
CN107903787A (en) * 2017-12-15 2018-04-13 苏州金润新材料科技有限公司 A kind of concrete penetrating colorants and its application

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DE2315400C2 (en) * 1973-03-28 1982-09-16 Hoechst Ag, 6000 Frankfurt, De
JPS5943437B2 (en) * 1981-06-16 1984-10-22 Shigeo Ando
NL8105814A (en) * 1981-12-23 1983-07-18 Anjap Nv Granules Particle, as well as method for treatment of granulate particles.
US4548968A (en) * 1983-04-06 1985-10-22 Ciba Geigy Corporation Manufacture of resin extended pigments
GB2164288B (en) * 1984-09-12 1988-06-02 Redland Roof Tiles Ltd Method and apparatus for manufacturing roof tiles and tiles made thereby
US5223200A (en) * 1985-06-26 1993-06-29 Braas Gmbh Method for producing concrete roof tiles
DE3619363C2 (en) * 1986-06-09 1992-08-06 Chemische Werke Brockhues Ag, 6229 Walluf, De
JP2610980B2 (en) * 1987-12-30 1997-05-14 トーメンコンストラクション株式会社 Compounds for the production of heavy concrete and methods for producing heavy concrete
JP2626016B2 (en) * 1987-12-30 1997-07-02 トーメンコンストラクション株式会社 Compounds for the production of heavy concrete and methods for producing heavy concrete
CA2047787A1 (en) * 1991-07-24 1993-01-25 Z. Grant Kafarowski Decorative concrete slab
DE4212768A1 (en) * 1992-04-16 1993-10-21 Huels Chemische Werke Ag Process for the preparation of aqueous polymer dispersions
JPH0657148A (en) * 1992-08-11 1994-03-01 Sumika Color Kk Surface course material for colored pavement and its production
US5401313A (en) * 1993-02-10 1995-03-28 Harcros Pigments, Inc. Surface modified particles and method of making the same
US5298076A (en) * 1993-03-23 1994-03-29 Ciba-Geigy Corporation Carbazole dioxazine-pigmented plastics and coatings
US5406766A (en) * 1993-07-29 1995-04-18 Monier Roof Tile Inc. Multi-color concrete tiles and method and apparatus for making same
DE4419574A1 (en) * 1994-06-03 1995-12-07 Bayer Ag Coating materials for waterproofing building materials, etc.
DE19533081C2 (en) * 1995-09-07 1998-11-26 Braas Gmbh Process for the production of colored concrete bodies

Also Published As

Publication number Publication date
AU695856B2 (en) 1998-08-27
DE19533081A1 (en) 1997-03-13
DE69605930D1 (en) 2000-02-03
NZ318392A (en) 1998-09-24
DE19533081C2 (en) 1998-11-26
NO980977L (en) 1998-03-06
US6268410B1 (en) 2001-07-31
NO980977D0 (en) 1998-03-06
GR3032756T3 (en) 2000-06-30
PL187414B1 (en) 2004-07-30
CN1195335A (en) 1998-10-07
ES2142609T3 (en) 2000-04-16
AT188197T (en) 2000-01-15
JP3263398B2 (en) 2002-03-04
DK0848691T3 (en) 2000-05-15
US6090329A (en) 2000-07-18
CN1092159C (en) 2002-10-09
AU6986896A (en) 1997-03-27
JPH11510139A (en) 1999-09-07
BR9610124A (en) 1999-05-04
PT848691E (en) 2000-06-30
EP0848691B1 (en) 1999-12-29
DK848691T3 (en)
MY118355A (en) 2004-10-30
EP0848691A1 (en) 1998-06-24
WO1997009284A1 (en) 1997-03-13
DE69605930T2 (en) 2001-04-26
PL325238A1 (en) 1998-07-06
CA2231264A1 (en) 1997-03-13

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