GB2384781A - Coating compositions - Google Patents
Coating compositions Download PDFInfo
- Publication number
- GB2384781A GB2384781A GB0126548A GB0126548A GB2384781A GB 2384781 A GB2384781 A GB 2384781A GB 0126548 A GB0126548 A GB 0126548A GB 0126548 A GB0126548 A GB 0126548A GB 2384781 A GB2384781 A GB 2384781A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- coating composition
- building material
- composition according
- composition
- 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.)
- Granted
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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1092—Coating or impregnating with pigments or dyes
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating 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
- C04B41/48—Macromolecular compounds
- C04B41/483—Polyacrylates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
A coating composition for a building material, and in particular for particulate building materials such as sand, gravel and chippings. The composition includes a pigment dispersed in aqueous media, the media including a resin material.
Description
1 238478 1
Coating Compositions The present invention concerns coating compositions, particularly but not exclusively compositions for coating building materials such as sand, gravel and chippings.
Conventionally sand can be coloured by adding a dye or pigment carried in a resin, the coloured resin being added to the sand in a mixing vessel so that the particles of sand are coated with the coloured resin. However, for certain colours, the pigments used have traditionally been based on chromates, which are toxic, and the resin has been solvent based therefore presenting health, safety and environmental problems in manufacture, use and disposal. Further, the process has required drying of the coated material by processing in heated rotary dryers before packaging, with the consequent expense of heating costs.
It has been found difficult to provide satisfactory alternatives due to the degree of weather resistance and resistance to trafficking abrasion required in use.
According to one aspect of the present invention, there is provided a coating composition for application to a building material, the coating composition including a pigment dispersed in aqueous media, the media including a resin material.
Preferably, the resin material comprises any one or a combination of acrylic resin, polyester resin, polyurethane resin, epoxy resin, vinyl resin, styrene resin, or styrene acrylic resin, the or each said resin or resins being in the form of an aqueous solution, an aqueous dispersion or an aqueous emulsion. Preferably there are a plurality of said resins. Preferably at least one of the resins is in the form of an aqueous solution. Preferably the soluble resin forms at least 10% w/w of the coating composition. Preferably at least one other of the resins is in the form of an aqueous dispersion or an aqueous emulsion. The building material is preferably a particulate building material.
According to a further aspect of the present invention there is provided a coating composition including pigment dispersed in aqueous media, the media including a plurality of resins, at least one of said resins being in the form of an aqueous solution and forming at least 10% w/w of the coating composition, and at least one other of the resins being in the form of an aqueous dispersion or aqueous emulsion.
Preferably the resins comprise any one or a combination of acrylic resin, polyester resin, polyurethane resin, epoxy resin, vinyl resin, styrene resin or styrene acrylic resin.
Preferably the dispersed or emulsified resin forms at least 20% w/w of the coating composition, and desirably forms at least 30% w/w of the coating composition. Preferably the media includes both a dispersed resin and an emulsified resin with a combined proportion of at least 40% w/w of the coating composition and desirably at least 60% w/w of the coating composition.
Preferably the ratio of emulsified and dispersed resin to soluble resin is between 3:1 and 4:1 by weight.
Preferably the emulsified resin is styrene acrylic resin. Preferably the dispersed resin is acrylic resin.
The coating composition may include anti-foam agents, and may include waxes. Preferably the pigment is chromate-free. The pigment may be organic, or may be inorganic.
The coating composition may include materials providing reflective, luminescent, or fluorescent properties.
The building material may be sand, stones, aggregate, gravel, chippings or the like.
According to a further aspect of the present invention there is provided a method of coating particulate building materials, the method comprising adding a coating composition to the surface of a building material, the coating composition being as described in the preceding thirteen paragraphs. In one embodiment, the building material may be an aggregate, and may be any one of gravel, shippings, sand or lightweight aggregate. In this embodiment the building material may be agitated in a mixing vessel, and the coating composition added to the building material in the mixing vessel, the coating composition being mixed into the building material until evenly distributed on the surfaces of the building material.
The mixing vessel may be a paddle mixer, a tumbling mixer, or a helical coil mixer. The coating composition may be sprayed into the mixer under pressure, or alternatively may be poured in by hand.
The coating material may be added to the building material at an addition rate of at least 0.1% w/w finished coated material, and preferably not greater than 10% finished coated material. More preferably the addition rate is between 1.0-1.5% w/w finished coated material.
In another embodiment, the building material may be a hard fired ceramic body. The building material may be a brick, a block, a slab, a roof tile or the like.
According to a further aspect of the present invention there is provided a coated particulate building material, the building material being coated according to the method described in the preceding paragraphs.
According to a further aspect of the present invention there is provided a coated building material, the building material being coated with a coatin
composition as described in the preceding paragraphs, in which the coated building material has been provided with the coating by painting, dipping or spraying with the coating composition. The building material may be a hard fired ceramic body. The building material may be a brick, a block, a slab, a roof tile or the like.
According to a further aspect of the present invention there is provided the use of a coating composition to coat building materials, the coating composition being as described in the preceding paragraphs. Preferably, the building materials are particulate building materials.
Embodiments of the present invention will now be described, by way of example only, and with reference to the tables below.
Examples of Coating Compositions Table 1
Materials Percentages C.I. Pigment Green 7 1.52% Styrene Acrylic Solution Resin 19.70% Acrylic Dispersion Resin 33.73% Styrene Acrylic Emulsion 37. 73% Polyethylene Wax 1.26% Water 6.06% Total 100%
Table 2
Materials Percentages C.I. Pigment Blue 15.3 1.12% _ Styrene Acrylic Solution Resin Acrylic Dispersion Resin 33.4% _ Styrene Acrylic Emulsion 38.3% . _.... -
Polyethylene Wax 1.68% Water 6% _ Total 100% Tables 1 and 2 show examples of coating compositions in accordance with embodiments of the present invention. In each case, the pigments are proprietary pigments. The pigments are manufactured by Flint Ink (UK) Limited, Packaging Inks Division, Vauxhall Industrial Estate, Ruabon, Wrexham, United Kingdom, are chromate free, and may be organic or inorganic. The coating compositions include a pigment dispersed in aqueous media, the media including resins. The resins comprise styrene acrylic solution, acrylic dispersion, and styrene acrylic emulsion resins. It has been found that to achieve the necessary degree of weather resistance the combined emulsion and dispersion part must be greater than 20% by weight of the coating composition.
As the proportion of the emulsion and dispersion resins is increased, the weathering resistance improves. However, it is also necessary to provide a water soluble resin to allow satisfactory dispersal of the pigment, this being provided by the styrene acrylic solution resin in Tables 1 and 2. Processing properties may be improved by the addition of anti-foam agents and waxes.
The coating composition is added into a mixing vessel containing particulate building materials such as aggregate, sand, lightweight aggregates or stone chippings. The mixing vessel may be a paddle mixer, a tumbling mixer, or a helical coil mixer, and the coating
G composition is sprayed or poured into the particulate building material, while the building material is being agitated within the mixing vessel. The coating composition is mixed into the particulate building material until evenly distributed on the particle surfaces of the building material. Typical additional rates are shown in Table 3 for different building materials.
Table 3
Materials Coating composition addition rate as percentage of finished coated material Sand 1% Aggregate Chippings 1.5% Lightweight Aggregates 1. 5% Once addition of the coating composition into the mixing vessel has been completed, agitation continues and the coating dries and hardens on the particulate building materials while in the mixer. Typically, for a helical mixer, a mixing time of approximately 10 mins is required for the coating composition to dry and harden on sand, and this may be longer, up to 30 mins for coarser particle particulate material such as gravel or chippings.
The dried, coated particulate material is then emptied from the mixer and packaged into bags. The dried coated material is used as a decorative aggregate or planting material for gardens, driveways, paths, planters, etc. Alternatively, the coated particulate building material may be used as a constituent, in, for instance, concrete or reconstructed stone, being formed by moulding into bricks, blocks, roof tiles, walling units etc. Alternatively, the coating composition may be applied by brushing, spraying, or dipping to the surface of formed or cast building materials such as hard fir ed ceramic bodies, bricks, blocks, slabs, roof tiles or similar.
Particulate building materials coated with coating compositions to the above formulations have shown suitable water and frost resistance for use in outdoor environments throughout the year.
Various modifications may be made without departing from the scope of the invention. Other suitable pigments, of varying colours may be used.
Materials having reflective, luminescent, or fluorescent properties may be incorporated into the coating composition. Other resin types may be used, and in particular polyester, polyurethane, epoxy or vinyl resins. Different resins may make up the solution, emulsion and dispersion components of the coating composition. There is therefore disclosed a coating composition suitable for application to a building material, the coated building material having satisfactory properties of weather resistance and abrasion resistance for use in outdoor environments throughout the year. The coating composition disclosed is a water soluble, non-toxic material which in contrast with previously known suitable coating compositions has much improved ease of processing with much reduced health, safety and environmental risks.
Whilst endeavouring in the foregoing specification to draw attention to
those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore- referred to whether or not particular emphasis has been placed thereon.
Claims (1)
1. A coating composition for application to a building material, the coating composition including a pigment dispersed in aqueous media, the media including a resin material.
2. A composition according to claim 1, in which the building material is a particulate building material, such as sand, stones, aggregate, gravel, chippings or the like.
3. A composition according to claims 1 or 2, in which the resin material comprises any one or a combination of acrylic resin, polyester resin, polyurethane resin, epoxy resin, vinyl resin, styrene resin, or styrene acrylic resin, the or each said resin or resins being in the form of an aqueous solution, an aqueous dispersion or an aqueous emulsion.
4. A composition according to claim 3, in which there are a plurality of said resins. 5. A composition according to claim 4, in which at least one of the resins is in the form of an aqueous solution.
6. A composition according to claim 5, in which the soluble resin forms at least 10% w/w of the coating composition.
7. A composition according to claims 5 or 6, in which at least one other of the resins is in the form of an aqueous dispersion or an aqueous emulsion.
8. A coating composition including pigment dispersed in aqueous media, the media including a plurality of resins, at least one of said resins being in the form of an aqueous solution and forming at least 10% w/w of the coating composition, and at least one other of the resins being in the form of an aqueous dispersion or aqueous emulsion.
9. A composition according to claim 8, in which the resins comprise any one or a combination of acrylic resin, polyester resin, polyurethane resin, epoxy resin, vinyl resin, styrene resin or styrene acrylic resin.
10. A composition according to any of claims 7 to 9, in which the dispersed or emulsified resin forms at least 20% w/w of the coating composition.
11. A composition according to claim 10, in which the dispersed or emulsified resin forms at least 30% w/w of the coating composition.
12. A composition according to any of claims 7 to 11, in which the media includes both a dispersed resin and an emulsified resin with a combined proportion of at least 40% w/w of the coating composition.
13. A composition according to claim 12, in which the media includes both a dispersed resin and an emulsified resin with a combined proportion of at least 60% w/w of the coating composition.
14. A composition according to claims 12 or 13, in which the ratio of emulsified and dispersed resin to soluble resin is between 3:1 and 4:1 by weight.
15. A composition according to any of claims 3 to 14, in which the emulsified resin is styrene acrylic resin.
16. A composition according to any of claims 3 to 15, in which the dispersed resin is acrylic resin.
17. A composition according to any of the preceding claims, in which the coating composition includes anti-foam agents.
18. A composition according to any of the preceding claims, in which the coating composition includes waxes.
19. A composition according to any of the preceding claims, in which the
pigment is chromate-free.
20. A composition according to claim 19, in which the pigment is organic.
21. A composition according to claim 19, in which the pigment is inorganic.
22. A composition according to any of the preceding claims, in which the coating composition includes materials providing reflective, luminescent, or fluorescent properties.
23. A method of coating particulate building materials, the method comprising adding a coating composition to the surface of a building material, the coating composition being according to any of the preceding claims.
24. A method according to claim 23, in which the building material is an aggregate. 25. A method according to claim 24, in which the building material is any one of gravel, chippings, sand or lightweight aggregate.
26. A method according to any of claims 23 to 25, in which the building material is agitated in a mixing vessel, and the coating composition added to the building material in the mixing vessel, the coating composition being mixed into the building material until evenly distributed on the surfaces of the building material.
27. A method according to claim 26, in which the mixing vessel is a paddle mixer, a tumbling mixer, or a helical coil mixer.
28. A method according to claims 26 or 27, in which the coating composition is sprayed into the mixer under pressure.
29. A method according to claims 26 or 27, in which the coating composition is poured into the mixer by hand.
30. A method according to any of claims 26 to 29, in which the coating material is added to the building material at an addition rate of at least 0.1% w/w finished coated material.
31. method according to claim 30, in which the addition rate is not greater than 10% w/w finished coated material.
32. A method according to claim 31, in which the addition rate is between 1.0-1.5% w/w finished coated material.
33. A method according to claim 23, in which the building material is a hard fired ceramic body.
34. A method according to claims 23 or 33, in which the building material is a brick, a block, a slab, a roof tile or the like.
3 5. A coated particulate building material, the building material being coated according to any of claims 23 to 34.
36. A coated building material, the building material being coated with a coating composition according to any of claims 1 to 22, in which the coated building material has been provided with the coating by painting, dipping or spraying with the coating composition.
3 7. A building material according to claim 36, in which the building material is a hard fired ceramic body.
38. A building material according to claim 36, in which the building material is a brick, a block, a slab, a roof tile or the like.
39. The use of a coating composition to coat building materials, the coating composition being according to any of claims 1 to 22.
40. The use of a coating composition according to claim 39, in which the building materials are particulate building materials.
41. A coating composition substantially as hereinbefore described.
42. A method of coating building materials substantially as hereinbefore described. 43. A coated building material substantially as hereinbefore described.
44. The use of a coating composition substantially as hereinbefore described.
46. Any novel subject matter or combination including novel subject matter disclosed herein, whether or not within the scope of or relating to the same invention as any of the preceding claims.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0126548A GB2384781B (en) | 2001-11-06 | 2001-11-06 | Coating compositions |
| PCT/GB2002/005026 WO2003040053A2 (en) | 2001-11-06 | 2002-11-05 | Coating compositions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0126548A GB2384781B (en) | 2001-11-06 | 2001-11-06 | Coating compositions |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0126548D0 GB0126548D0 (en) | 2002-01-02 |
| GB2384781A true GB2384781A (en) | 2003-08-06 |
| GB2384781B GB2384781B (en) | 2005-11-30 |
Family
ID=9925181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0126548A Expired - Fee Related GB2384781B (en) | 2001-11-06 | 2001-11-06 | Coating compositions |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2384781B (en) |
| WO (1) | WO2003040053A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4885875B2 (en) * | 2004-12-13 | 2012-02-29 | チェイル インダストリーズ インコーポレイテッド | Artificial marble including three-dimensional transparent marble chip and method for producing the same |
| FI20050124A (en) * | 2005-02-04 | 2006-08-05 | Finnsementti Oy | Additives for concrete, its manufacture and use, and the process for making concrete and concrete |
| EP1759774A1 (en) * | 2005-09-05 | 2007-03-07 | Akzo Nobel Coatings International B.V. | Process for coating stones and coated stones |
| WO2008112946A1 (en) * | 2007-03-14 | 2008-09-18 | Sun Chemical Corporation | Water-based polyurethane pigmented coating |
| ES2367500B1 (en) * | 2009-09-08 | 2012-09-04 | Inés María Cansado Trigo | DECORATIVE PIECE AND PROCEDURE FOR OBTAINING THE SAME. |
| AU2010214758B2 (en) * | 2009-11-10 | 2012-05-24 | Lotte Advanced Materials Co., Ltd. | Colored Material Coated Transparent Chip for Artificial Stone, Method of Preparing Same, and Artificial Stone including Same |
| CN103834243A (en) * | 2013-12-25 | 2014-06-04 | 杨昌富 | Emulsion paint for interior wall |
| ES2786777B2 (en) * | 2019-04-11 | 2022-03-14 | Perez Boix Cristina | PROCEDURE FOR OBTAINING A LUMINESCENT CONSTRUCTION MATERIAL AND LUMINESCENT CONSTRUCTION MATERIAL OBTAINED WITH SAID PROCEDURE. |
| CN110922817A (en) * | 2019-11-29 | 2020-03-27 | 陕西速源节能科技有限公司 | Green energy-saving coating and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1158867A (en) * | 1967-02-06 | 1969-07-23 | Rhone Poulenc Sa | Emulsion Paint |
| GB2006219A (en) * | 1977-10-18 | 1979-05-02 | Kowa Chem Ind Ltd | Coating compositions for architectural use |
| JPH06220369A (en) * | 1993-01-27 | 1994-08-09 | Kuraray Co Ltd | Coating composition |
| JPH0711193A (en) * | 1993-04-28 | 1995-01-13 | Kansai Paint Co Ltd | Resin composition for water-based coating material |
| GB2291648A (en) * | 1994-07-25 | 1996-01-31 | Ici Plc | Coating compositions containing poly hydroxyalkanoates |
| RU2142975C1 (en) * | 1997-12-26 | 1999-12-20 | Государственное производственное объединение "Алексинский химический комбинат" | Aqueous dispersive paint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3470012A (en) * | 1965-03-08 | 1969-09-30 | Robert C Rollette | Method and apparatus for producing decorative stone |
-
2001
- 2001-11-06 GB GB0126548A patent/GB2384781B/en not_active Expired - Fee Related
-
2002
- 2002-11-05 WO PCT/GB2002/005026 patent/WO2003040053A2/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1158867A (en) * | 1967-02-06 | 1969-07-23 | Rhone Poulenc Sa | Emulsion Paint |
| GB2006219A (en) * | 1977-10-18 | 1979-05-02 | Kowa Chem Ind Ltd | Coating compositions for architectural use |
| JPH06220369A (en) * | 1993-01-27 | 1994-08-09 | Kuraray Co Ltd | Coating composition |
| JPH0711193A (en) * | 1993-04-28 | 1995-01-13 | Kansai Paint Co Ltd | Resin composition for water-based coating material |
| GB2291648A (en) * | 1994-07-25 | 1996-01-31 | Ici Plc | Coating compositions containing poly hydroxyalkanoates |
| RU2142975C1 (en) * | 1997-12-26 | 1999-12-20 | Государственное производственное объединение "Алексинский химический комбинат" | Aqueous dispersive paint |
Non-Patent Citations (3)
| Title |
|---|
| WPI Abstract AN 1994-291101 [36] & JP 06 220 369 A * |
| WPI Abstract AN 1995-085643 [12] & JP 07 011 193 A * |
| WPI Abstract AN 2000-530658 [48] & RU 2142975 C1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003040053A2 (en) | 2003-05-15 |
| GB2384781B (en) | 2005-11-30 |
| WO2003040053A3 (en) | 2003-07-24 |
| GB0126548D0 (en) | 2002-01-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20061106 |