US20050003084A1 - Process for producing colouring pigment granulated materials - Google Patents
Process for producing colouring pigment granulated materials Download PDFInfo
- Publication number
- US20050003084A1 US20050003084A1 US10/886,432 US88643204A US2005003084A1 US 20050003084 A1 US20050003084 A1 US 20050003084A1 US 88643204 A US88643204 A US 88643204A US 2005003084 A1 US2005003084 A1 US 2005003084A1
- Authority
- US
- United States
- Prior art keywords
- granulated materials
- granulated
- coating
- grain size
- producing
- 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.)
- Abandoned
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Classifications
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- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
- Y10T428/2995—Silane, siloxane or silicone coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
- Y10T428/2996—Glass particles or spheres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2998—Coated including synthetic resin or polymer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
Definitions
- the invention relates to colouring pigment granulated materials for the colouring of building material, especially for the colouring of concrete, and to a process for producing colouring pigment granulated materials.
- colouring powders for concrete colours are granulated to obtain good dosing and transport properties, and to reduce the formation of dust.
- Different granulated materials for the colouring of concrete are known from Background Art, with the granulated materials being made from a largely homogeneous mixture of colouring powder and a binder to obtain a sufficient granulated material strength.
- the drawback of these disclosed granulated materials is the low dissolution speed caused by a largely homogeneous binder distribution. Until now, an increase in dissolution speed was obtained, e.g., by reducing granulated material size, while this led to an increased formation of dust during transportation and processing.
- DE 196 38 042 A1 describes a process to produce inorganic pressed or briquette granulated materials from inorganic pigments using auxiliaries, in which one or more pigments are mixed with one or more auxiliaries improving the working properties, this mix is subjected to a pressing or briquetting step, this pressed or briquetted product is comminuted, the comminuted product is separated into two or more fractions, the fraction in which at least 85% of the particles are bigger than 80 ⁇ m, and preferably bigger than 100 ⁇ m, or are between 80 and 2000 ⁇ m, and preferably between 100 and 1000 ⁇ m, are withdrawn as a product and are rounded in an additional step if any, while the other fraction or fractions exit the process or are recirculated into the process.
- EP 0 191 278 disclosed a colour preparation for the colouring of building material using inorganic metal oxides, and consisting of a pourable damp granulated material.
- the latter document also provides for a powder which is to be scattered on the granulate as a separating agent to keep the granulate pourable even in large containers, so that the granulate only needs to be dried in part.
- the drawback of this is the fact that a homogenous distribution of the separating agent is not guaranteed in this mixture of damp granulated material and separating agent, and that flowability is restricted due to the granulated material's shape.
- DE 39 18 694 C 1 and DE 41 03 531 A 1 disclosed processes to produce spray granulates using previously mixed in inorganic binders. According to DE 41 03 531 A 1, it is possible in this context to bond fine particles to the cores using an additional build-up granulation. A drawback of both processes is the high consumption of drying energy.
- a pigment suspension is sprayed in drop shape, and dried to obtain pigment micro granulates in a flow of hot gas.
- the suspension is pulverized using a centrifugal atomizer, a pressure nozzle, or a two-component nozzle.
- the stability of the granulated materials is achieved by inorganic binders blended into the aqueous pigment oxide suspension beforehand. The drawback of this is the high dust content, and the bad flow behaviour.
- pressed granulates are produced essentially by applying line forces of >15 kN/cm, and they are comminuted in general, and rounded if necessary.
- the pigment powder is mixed with binders too.
- Surface-active and/or blasting agents are also introduced into the mix to dissolve adherence at a later time. It cannot be excluded in this context that such substances have adverse effects on the properties of the coloured building materials.
- the granulated materials consist of a core without binder and of a shell.
- the shell adapts to the surface of the granulated material, enclosing it completely, and generating mechanical strength.
- No binders, emulsifying agents, surface-active agents, dispersing agents, and preservatives are mixed into the pigment oxide powder, while a pigment-water mixture is produced and granulated.
- the use of water presents the advantage that it can be expelled again during the process.
- the physical properties of the granulated materials, such as transport and storage stability, are brought about by the shell characteristics, so that they are reproducible and stable.
- An advantage for the manufacture of the granulated materials is the opportunity to separate useful and recycling grain sizes.
- the granulate material cores have a grain size of preferably 0.1 through 8 mm.
- the coating layer is preferably made of a destructible material, and the granulated material preferably presents a moisture content of ⁇ 30%.
- the granulated materials have a grain size of 0.5 through 1.5 mm and a moisture content of ⁇ 5%.
- the coating layer consists of organic matter, or a mixture of inorganic and organic matter.
- the coating material must have a fusion temperature of >60° C., and it may consist, e.g., of wax. It is an advantage in this context to obtain the hardening of the shell by cooling it down using an air flow at a regulable temperature.
- the granulate according to the invention will have a solid shell with an approximately uniform nature and thickness.
- the granulate according to the invention is characterized by a high compatibility with building materials.
- the colouring pigment By arranging a shell around the granulated material cores, the colouring pigment will be present without any fixed bond in the building material after adding the granulate and destroying the shell, so that the disagglomeration of the granulated materials will proceed at a very high speed because, as no binders were used in the granulate material core, the granulated materials will only present a very low adhesive force there.
- the high dissolving power of the coated granulated materials allows the use of granulated materials with higher grain diameters.
- FIG. 1 is a diagrammatic view of the process used to produce coated granulated materials.
- powdered colouring pigments are withdrawn from a colouring pigment hopper 1 using a dosing device, and fed to a compulsory mixer.
- this compulsory mixer 2 water is added at a proportion of between 10% and 30% to form granulated materials.
- the discharge of the mixer 2 is fed to a primary granulator 3 which produces a primary granulate in the desired grain size.
- This primary granulate is fed to a pelletizer disk 4 and compacted.
- a modifiable disk setting ensures that a useful grain size of 0.5 mm to 1.5 mm is produced predominantly.
- the discharge of disk 4 is fed to a shaking screen 5 on which oversize particles with a grain size of more than 1.5 mm are separated.
- the useful grain size fraction of 0.5 to 1.5 mm separated by the shaking screen 5 is fed to a continuously working drum 6 in which spray nozzles 6 . 1 are used to add polyvinyl alcohol in an aqueous suspension, forming a coating material which is liquid at first.
- continuous dry air 6 . 3 is fed in the area of a drying zone 6 . 2 , thus reducing the water content of the sprayed granulated materials to a value of less than 0.5%, and obtaining the solidification of the coating material.
- fine size portions of the colouring pigment material in drum 6 are picked up, separated in a dust removal plant 8 , and fed to the mixer 2 .
- the discharge of drum 6 is fed to and stored in the finished material bin 7 as coated coloured granulates.
Abstract
A process for producing coloring pigment granulated materials comprises producing binder-free granulated materials via a primary granulator, immediately compacting the granulated materials, feeding the compacted granulated materials to a classification that separates a useful grain size fraction, and coating the useful grain size fraction with a coating material.
Description
- This is a divisional of U.S. patent application Ser. No. 10/030,925, filed on Jan. 4, 2002, which is a 371 of PCT/DE00/03690 filed on Oct. 20, 2000, which claims priority under 35 U.S.C. 119 of German Patent Application No. 199 50 712.0, filed on Oct. 21, 1999.
- 1. Field of the Invention
- The invention relates to colouring pigment granulated materials for the colouring of building material, especially for the colouring of concrete, and to a process for producing colouring pigment granulated materials.
- 2. The Prior Art
- Usually, colouring powders for concrete colours are granulated to obtain good dosing and transport properties, and to reduce the formation of dust. Different granulated materials for the colouring of concrete are known from Background Art, with the granulated materials being made from a largely homogeneous mixture of colouring powder and a binder to obtain a sufficient granulated material strength. The drawback of these disclosed granulated materials is the low dissolution speed caused by a largely homogeneous binder distribution. Until now, an increase in dissolution speed was obtained, e.g., by reducing granulated material size, while this led to an increased formation of dust during transportation and processing.
- In addition, this requires the admixture of dispersing and surface-active agents to the granulated material.
- DE 196 38 042 A1 describes a process to produce inorganic pressed or briquette granulated materials from inorganic pigments using auxiliaries, in which one or more pigments are mixed with one or more auxiliaries improving the working properties, this mix is subjected to a pressing or briquetting step, this pressed or briquetted product is comminuted, the comminuted product is separated into two or more fractions, the fraction in which at least 85% of the particles are bigger than 80 μm, and preferably bigger than 100 μm, or are between 80 and 2000 μm, and preferably between 100 and 1000 μm, are withdrawn as a product and are rounded in an additional step if any, while the other fraction or fractions exit the process or are recirculated into the process.
- EP 0 191 278 disclosed a colour preparation for the colouring of building material using inorganic metal oxides, and consisting of a pourable damp granulated material. The latter document also provides for a powder which is to be scattered on the granulate as a separating agent to keep the granulate pourable even in large containers, so that the granulate only needs to be dried in part. The drawback of this is the fact that a homogenous distribution of the separating agent is not guaranteed in this mixture of damp granulated material and separating agent, and that flowability is restricted due to the granulated material's shape.
- Furthermore, DE 39 18 694
C 1 and DE 41 03 531 A 1 disclosed processes to produce spray granulates using previously mixed in inorganic binders. According to DE 41 03 531A 1, it is possible in this context to bond fine particles to the cores using an additional build-up granulation. A drawback of both processes is the high consumption of drying energy. - In the process described in DE 39 18 694
C 1, a pigment suspension is sprayed in drop shape, and dried to obtain pigment micro granulates in a flow of hot gas. The suspension is pulverized using a centrifugal atomizer, a pressure nozzle, or a two-component nozzle. The stability of the granulated materials is achieved by inorganic binders blended into the aqueous pigment oxide suspension beforehand. The drawback of this is the high dust content, and the bad flow behaviour. - Another disadvantage is the fact that pigment oxides of the granulated materials are mixed with inorganic binders which should guarantee stability during transportation and storage.
- Although the process proposed in DE 41 035 31 A 1 also provides for spraying with aqueous solutions of inorganic binders during a subsequent granulation, this rather corresponds to a bonding of fine particles to the granulate core, and thus to a granulation of the dust particles in the mix. This can also form an external shell of particles and binders exposed to abrasion on the granulate core.
- According to a process described in DE 197 31 698
A 1, pressed granulates are produced essentially by applying line forces of >15 kN/cm, and they are comminuted in general, and rounded if necessary. As in DE 196 38 042A 1, the pigment powder is mixed with binders too. Surface-active and/or blasting agents are also introduced into the mix to dissolve adherence at a later time. It cannot be excluded in this context that such substances have adverse effects on the properties of the coloured building materials. - It is the object of the invention to provide a granulate and a process for the economic production of this granulate, which is able to liberate itself at a high speed after its addition to a building material to be coloured.
- In the invention, the granulated materials consist of a core without binder and of a shell. The shell adapts to the surface of the granulated material, enclosing it completely, and generating mechanical strength. No binders, emulsifying agents, surface-active agents, dispersing agents, and preservatives are mixed into the pigment oxide powder, while a pigment-water mixture is produced and granulated. In contrast to the auxiliaries used according to Background Art, the use of water presents the advantage that it can be expelled again during the process. The physical properties of the granulated materials, such as transport and storage stability, are brought about by the shell characteristics, so that they are reproducible and stable. An advantage for the manufacture of the granulated materials is the opportunity to separate useful and recycling grain sizes.
- The granulate material cores have a grain size of preferably 0.1 through 8 mm. The coating layer is preferably made of a destructible material, and the granulated material preferably presents a moisture content of <30%. In an especially preferred embodiment, the granulated materials have a grain size of 0.5 through 1.5 mm and a moisture content of <5%.
- In another preferred embodiment, the coating layer consists of organic matter, or a mixture of inorganic and organic matter.
- It is also possible to use the process according to the invention to produce binder-free granulated materials, and to coat them with a melting by spray deposition. The coating material must have a fusion temperature of >60° C., and it may consist, e.g., of wax. It is an advantage in this context to obtain the hardening of the shell by cooling it down using an air flow at a regulable temperature.
- At the time of transportation, the granulate according to the invention will have a solid shell with an approximately uniform nature and thickness. By classifying the grain size, and creating a coating by drying the granulate if necessary, it is possible to adjust compaction weight, remaining humidity, shell thickness and grain size, thus adapting these values to the conditions desired in the corresponding case. The granulate according to the invention is characterized by a high compatibility with building materials.
- By arranging a shell around the granulated material cores, the colouring pigment will be present without any fixed bond in the building material after adding the granulate and destroying the shell, so that the disagglomeration of the granulated materials will proceed at a very high speed because, as no binders were used in the granulate material core, the granulated materials will only present a very low adhesive force there. The high dissolving power of the coated granulated materials allows the use of granulated materials with higher grain diameters. Other advantages include the low content of foreign matter in the colouring pigments of the coated granulated materials, and the universal applicability of the process according to the invention to produce the coating for all granulation processes disclosed so far such as, e.g., press granulation, fluid-bed granulation, spray granulation, or build-up granulation.
- Other objects and features of the present invention will become apparent from the following detailed description considered in connection with the accompanying drawing. It is to be understood, however, that the drawing is designed as an illustration only and not as a definition of the limits of the invention.
-
FIG. 1 is a diagrammatic view of the process used to produce coated granulated materials. - As shown in
FIG. 1 , powdered colouring pigments are withdrawn from acolouring pigment hopper 1 using a dosing device, and fed to a compulsory mixer. In thiscompulsory mixer 2, water is added at a proportion of between 10% and 30% to form granulated materials. The discharge of themixer 2 is fed to aprimary granulator 3 which produces a primary granulate in the desired grain size. This primary granulate is fed to apelletizer disk 4 and compacted. A modifiable disk setting ensures that a useful grain size of 0.5 mm to 1.5 mm is produced predominantly. The discharge ofdisk 4 is fed to a shakingscreen 5 on which oversize particles with a grain size of more than 1.5 mm are separated. The useful grain size fraction of 0.5 to 1.5 mm separated by the shakingscreen 5 is fed to a continuously workingdrum 6 in which spray nozzles 6.1 are used to add polyvinyl alcohol in an aqueous suspension, forming a coating material which is liquid at first. Indrum 6, continuous dry air 6.3 is fed in the area of a drying zone 6.2, thus reducing the water content of the sprayed granulated materials to a value of less than 0.5%, and obtaining the solidification of the coating material. By the dry air 6.3, fine size portions of the colouring pigment material indrum 6 are picked up, separated in adust removal plant 8, and fed to themixer 2. The discharge ofdrum 6 is fed to and stored in the finished material bin 7 as coated coloured granulates. - Accordingly, while only a few embodiments of the present invention have been shown and described, it is obvious that many changes and modifications may be made thereunto without departing from the spirit and scope of the invention.
- 1 Colouring pigment hopper
- 2 Mixer
- 3 Primary granulator
- 4 Pelletizer disk
- 5 Shaking screen
- 6 Drum
-
- 6.1 Spray nozzles
- 6.2 Drying zone
- 6.3 Dry air
- 7 Finished material bin
- 8 Dust removal
Claims (4)
1. A process for producing colouring pigment granulated materials, comprising:
producing binder-free granulated materials via a primary granulator,
compacting said granulated materials immediately after said step of producing;
feeding said compacted granulated materials to a classification that separates a useful grain size fraction; and
coating said useful grain size fraction with a coating material.
2. The process as claimed in claim 1 , wherein the coating material is applied to the fraction in a dissolved form using spray nozzles, and the coating is solidified by feeding in dry air.
3. The process as claimed in claim 1 , wherein the coating is made of a molten material that is applied to the useful fraction at a fusion temperature of >60° C. using spray nozzles, and wherein the coating is solidified by cooling.
4. The process as claimed in claim 1 , wherein granulation water contained in the granulated material is expelled by a drying process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/886,432 US20050003084A1 (en) | 1999-10-21 | 2004-07-07 | Process for producing colouring pigment granulated materials |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19950712A DE19950712A1 (en) | 1999-10-21 | 1999-10-21 | Colored pigment granules for coloring concrete comprises individual granules surrounded by a soluble enveloping material without a binder |
DE19950712.0 | 1999-10-21 | ||
US10/030,925 US6824604B1 (en) | 1999-10-21 | 2000-10-20 | Coloring pigment granulates and method for producing the same |
US10/886,432 US20050003084A1 (en) | 1999-10-21 | 2004-07-07 | Process for producing colouring pigment granulated materials |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/003690 Division WO2001028954A1 (en) | 1999-10-21 | 2000-10-20 | Coloring pigment granulates and method for producing the same |
US10/030,925 Division US6824604B1 (en) | 1999-10-21 | 2000-10-20 | Coloring pigment granulates and method for producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050003084A1 true US20050003084A1 (en) | 2005-01-06 |
Family
ID=7926398
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/030,925 Expired - Fee Related US6824604B1 (en) | 1999-10-21 | 2000-10-20 | Coloring pigment granulates and method for producing the same |
US10/886,432 Abandoned US20050003084A1 (en) | 1999-10-21 | 2004-07-07 | Process for producing colouring pigment granulated materials |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/030,925 Expired - Fee Related US6824604B1 (en) | 1999-10-21 | 2000-10-20 | Coloring pigment granulates and method for producing the same |
Country Status (11)
Country | Link |
---|---|
US (2) | US6824604B1 (en) |
EP (1) | EP1222148B1 (en) |
AT (1) | ATE231111T1 (en) |
CA (1) | CA2377826A1 (en) |
CZ (1) | CZ293451B6 (en) |
DE (2) | DE19950712A1 (en) |
DK (1) | DK1222148T3 (en) |
ES (1) | ES2190994T3 (en) |
PL (1) | PL353964A1 (en) |
PT (1) | PT1222148E (en) |
WO (1) | WO2001028954A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080282935A1 (en) * | 2007-05-15 | 2008-11-20 | James Miller | Method and composition for adding color to concrete |
US8596905B2 (en) | 2010-06-07 | 2013-12-03 | John Scott Stephens | Apparatus and method for applying additives to a concrete mix |
US8714873B2 (en) | 2010-06-07 | 2014-05-06 | John Scott Stephens | Apparatus and method for applying additives to a concrete mix |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264552A (en) * | 1977-10-15 | 1981-04-28 | Ciba-Geigy Corporation | Granulation of pigments |
US5002609A (en) * | 1989-04-04 | 1991-03-26 | Bayer Aktiengesellschaft | Iron oxide black pigment granules, processes for their preparation and their use |
US5073295A (en) * | 1987-12-29 | 1991-12-17 | Ciba-Geigy Corporation | Encapsulated fluorescent whitening agent, photoativator or anti-microbial agent |
US5199986A (en) * | 1991-02-06 | 1993-04-06 | Bayer Aktiengesellschaft | Process for coloring building materials |
US5215583A (en) * | 1991-06-14 | 1993-06-01 | Bayer Aktiengesellschaft | Process for coloring building materials |
US5484481A (en) * | 1993-10-27 | 1996-01-16 | Bayer Ag | Process for the colouration of building materials |
US5797988A (en) * | 1996-04-18 | 1998-08-25 | Bayer Aktiengesellschaft | Process for producing briquetted and pressed granular material and use thereof |
US6132505A (en) * | 1997-02-10 | 2000-10-17 | Bayer Aktiengesellschaft | Inorganic pigment pellets for coloring plastics, lacquers and building materials and a process for the production thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT381299B (en) * | 1984-09-25 | 1986-09-25 | Alchem Metall Chemie Produktio | COLOR PREPARATION, CONTAINING ONE OR MORE COLOR GIVING INORGANIC METAL OXIDS, FOR SIZING COLORS OF CONSTRUCTION MATERIALS |
DE3918694C1 (en) * | 1989-05-10 | 1990-10-25 | Bayer Ag, 5090 Leverkusen, De | |
DE19638042B4 (en) * | 1996-04-18 | 2005-09-08 | Bayer Chemicals Ag | Process for the preparation of briquetting and pressed granules from inorganic pigments |
DE19731698A1 (en) * | 1997-07-23 | 1999-01-28 | Brockhues Chem Werke Ag | Process for coloring building materials and asphalt |
-
1999
- 1999-10-21 DE DE19950712A patent/DE19950712A1/en not_active Withdrawn
-
2000
- 2000-10-20 CZ CZ20013630A patent/CZ293451B6/en not_active IP Right Cessation
- 2000-10-20 PT PT00983044T patent/PT1222148E/en unknown
- 2000-10-20 EP EP00983044A patent/EP1222148B1/en not_active Revoked
- 2000-10-20 DE DE50001122T patent/DE50001122D1/en not_active Expired - Fee Related
- 2000-10-20 AT AT00983044T patent/ATE231111T1/en not_active IP Right Cessation
- 2000-10-20 ES ES00983044T patent/ES2190994T3/en not_active Expired - Lifetime
- 2000-10-20 US US10/030,925 patent/US6824604B1/en not_active Expired - Fee Related
- 2000-10-20 PL PL00353964A patent/PL353964A1/en not_active Application Discontinuation
- 2000-10-20 CA CA002377826A patent/CA2377826A1/en not_active Abandoned
- 2000-10-20 WO PCT/DE2000/003690 patent/WO2001028954A1/en not_active Application Discontinuation
- 2000-10-20 DK DK00983044T patent/DK1222148T3/en active
-
2004
- 2004-07-07 US US10/886,432 patent/US20050003084A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4264552A (en) * | 1977-10-15 | 1981-04-28 | Ciba-Geigy Corporation | Granulation of pigments |
US5073295A (en) * | 1987-12-29 | 1991-12-17 | Ciba-Geigy Corporation | Encapsulated fluorescent whitening agent, photoativator or anti-microbial agent |
US5002609A (en) * | 1989-04-04 | 1991-03-26 | Bayer Aktiengesellschaft | Iron oxide black pigment granules, processes for their preparation and their use |
US5199986A (en) * | 1991-02-06 | 1993-04-06 | Bayer Aktiengesellschaft | Process for coloring building materials |
US5215583A (en) * | 1991-06-14 | 1993-06-01 | Bayer Aktiengesellschaft | Process for coloring building materials |
US5484481A (en) * | 1993-10-27 | 1996-01-16 | Bayer Ag | Process for the colouration of building materials |
US5797988A (en) * | 1996-04-18 | 1998-08-25 | Bayer Aktiengesellschaft | Process for producing briquetted and pressed granular material and use thereof |
US6132505A (en) * | 1997-02-10 | 2000-10-17 | Bayer Aktiengesellschaft | Inorganic pigment pellets for coloring plastics, lacquers and building materials and a process for the production thereof |
Also Published As
Publication number | Publication date |
---|---|
DK1222148T3 (en) | 2003-05-12 |
CA2377826A1 (en) | 2001-04-26 |
US6824604B1 (en) | 2004-11-30 |
ES2190994T3 (en) | 2003-09-01 |
PT1222148E (en) | 2003-06-30 |
DE50001122D1 (en) | 2003-02-20 |
EP1222148B1 (en) | 2003-01-15 |
WO2001028954A1 (en) | 2001-04-26 |
DE19950712A1 (en) | 2001-04-26 |
PL353964A1 (en) | 2003-12-15 |
ATE231111T1 (en) | 2003-02-15 |
EP1222148A1 (en) | 2002-07-17 |
CZ20013630A3 (en) | 2002-10-16 |
CZ293451B6 (en) | 2004-04-14 |
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