WO2006048917A2 - Stucco suitable for spray delivery and container therefor - Google Patents

Stucco suitable for spray delivery and container therefor Download PDF

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Publication number
WO2006048917A2
WO2006048917A2 PCT/IT2005/000647 IT2005000647W WO2006048917A2 WO 2006048917 A2 WO2006048917 A2 WO 2006048917A2 IT 2005000647 W IT2005000647 W IT 2005000647W WO 2006048917 A2 WO2006048917 A2 WO 2006048917A2
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WO
WIPO (PCT)
Prior art keywords
composition
agent
present
previous
percentage
Prior art date
Application number
PCT/IT2005/000647
Other languages
French (fr)
Other versions
WO2006048917A3 (en
Inventor
Maurizio Mason
Original Assignee
Isolcem Italia Srl
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 Isolcem Italia Srl filed Critical Isolcem Italia Srl
Priority to EP05813193A priority Critical patent/EP1828076A2/en
Publication of WO2006048917A2 publication Critical patent/WO2006048917A2/en
Publication of WO2006048917A3 publication Critical patent/WO2006048917A3/en

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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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/22—Glass ; Devitrified glass
    • C04B14/24—Glass ; Devitrified glass porous, e.g. foamed glass
    • 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
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/06—Acrylates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034—Physico-chemical characteristics of the mixtures
    • C04B2111/00146—Sprayable or pumpable mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482—Coating or impregnation materials
    • C04B2111/00577—Coating or impregnation materials applied by spraying

Definitions

  • the present invention relates to a stucco composition for building and restoration work, able to be applied on different construction materials and wood.
  • the general properties of stucco are well known from the prior art: it does not run, it does not crack, it remains very white, it leaves no halos, it does not need sanding, it is waterproof, it remains elastic, it contains no asbestos, it can be painted with water based products after application.
  • stucco needs to be applied in positions where it is hard to reach for the operator, who often has to work on ladders or scaffolding.
  • aerated stucco requires packages whose size is the same as the final volume of the product to be used.
  • the stucco composition of the present invention solves the drawbacks listed above, while also reducing working time with a readily apparent economic return.
  • the author of the present invention has devised a stucco composition that can be advantageously placed in spray bottles, provided with appropriate nozzles, loaded with propellant gas.
  • One of the advantages is that the residual product does not come in contact with atmospheric air, which would act as a catalyser, preserving it from degradation.
  • Another advantage is that the stucco thus delivered is not handled before its application and is not dirtied in any way.
  • the stucco in the bottle is in a compressed state, thus occupying a smaller volume than in its free form, with considerable advantages also for storage and transport.
  • the stucco is thus distributed and applied in simple fashion, even from inconvenient positions, directly on the surface to be repaired, without necessarily using additional tools. Moreover, the bottle dispenses only the needed quantity of stucco, without waste. Spray delivery finds particular advantage for applications on horizontal surfaces, such as ceilings.
  • composition of the present invention comprises elements that provide the product with particular characteristics of lightness, such as hollow glass microspheres.
  • the person skilled in the art will, however, understand that the invention is not limited to compositions that contain them, but that elements that provide the desired properties of lightness and ease of delivery are equally usable and included in the scope of protection.
  • the object of the present invention is an aqueous stucco composition suitable for spray delivery comprising essentially at least:
  • compositions with specific weight ranging between 0.20 and 0.40, preferably between 0.25 and 0.35.
  • the inert hollow micro-spheres are glass micro-spheres, more preferably in a percentage by weight of between about 15% and about 30%, more preferably between about 18% and about 25%.
  • the acrylic polymer is Acrilem IC79 or ST198, more preferably in a percentage by weight of between about 25% and about 60%.
  • the fluidising agent is oleic acid and/or triethanolamine, more preferably in a percentage by weight of between about 0.3% and about 1.5%.
  • the catalysing agent is calcium hydroxide or calcium carbonate, alternatively it is scagliola, yet more preferably in a percentage by weight of between about 0.1 % and about 4%.
  • the composition also comprises an evaporation accelerating agent, such as an alcohol and/or propylene glycol, preferably in a percentage by weight of between about 0.5% and about 3%.
  • the composition also comprises a mould-preventing agent.
  • the preferred stucco composition comprises the following ingredients, in percentage by weight: Acrilem ST198 38%; Water 34%; Oleic Acid 0.6%; Triethanolamine T.E.A. 0.6%; Mould-preventing agent 0.03%; Glass micro ⁇ spheres K1 21.6%; Scagliola 4%.
  • a further object of the invention is a method for the preparation of an aqueous stucco composition suitable for spray delivery as described, comprising essentially the steps of:
  • a first phase A comprising water, acrylic polymer bonding agent, methyl cellulose (if present), sodium hydroxide, calcium carbonate or calcium hydroxide (if present);
  • phase A adding a phase B comprising fluidising agents, in such a way as to obtain a homogeneous phase C;
  • Another object of the present invention is a container with spray delivery containing the described stucco composition.
  • a first phase A comprising water, acrylic polymer bonding agent, methyl cellulose (if present), sodium hydroxide, calcium carbonate or calcium hydroxide (if present);
  • a phase B comprising the fluidising agents (triethanolamine and/or oleic acid) is prepared.
  • phase A and B are mixed until obtaining a homogeneous Phase C, to which are added the inert particles, also by mixing.
  • the balancing of the components and the quantity of water are such as to obtain an optimal drying of the stucco, at most within 24-48 hours for a thickness of 2 mm.
  • the stucco is drawn also by means of pistons and introduced in bottles.
  • the bottles can be of the type with internal bag, or of the type without it.
  • the gas activated by means of a valve, compresses the bag causing the stucco to escape.
  • a suitable piston causes the stucco to escape.

Abstract

An aqueous stucco composition suitable for spray delivery comprising inert hollow micro-spheres, a water-soluble acrylic polymer bonding agent, a fluidising agent and catalysing agent. The composition usable for construction and restoration work, method for its preparation and spray container that contains it.

Description

STUCCOSUITABLEFORSPRAYDELIVERY ANDCONTAINERTHEREFOR
The present invention relates to a stucco composition for building and restoration work, able to be applied on different construction materials and wood. The general properties of stucco are well known from the prior art: it does not run, it does not crack, it remains very white, it leaves no halos, it does not need sanding, it is waterproof, it remains elastic, it contains no asbestos, it can be painted with water based products after application.
Currently used stuccoes, to be applied on walls or on wood to repair surfaces damaged by holes or cracks, are available in different aerated compositions, with a paste-like consistency. The stucco, contained in buckets or cans, is picked up with a spatula and laid or pressed, to cover the irregularities (holes, cracks, etc.) to be repaired. At the end of the stucco application, the lid of the container must be put back in place immediately, to prevent the product from drying. However, the residual product still undergoes a rapid deterioration, by exposure to room atmosphere air and to the air remaining in the container itself. Moreover, to avoid compromising subsequent applications, the spatula must be thoroughly cleaned every time, to avoid using previously dried product. Additionally, very often the stucco needs to be applied in positions where it is hard to reach for the operator, who often has to work on ladders or scaffolding. Lastly, aerated stucco requires packages whose size is the same as the final volume of the product to be used.
In the prior art, a stucco-type of spray material is described which hardens in air (US2001/018481). However, it produces an irregular decorative effect and it is unsuitable for stuccoing / shaving / smoothing. In any case, none of the prior art compositions has the chemical and physical characteristics of the stucco of the present invention.
The stucco composition of the present invention solves the drawbacks listed above, while also reducing working time with a readily apparent economic return. The author of the present invention has devised a stucco composition that can be advantageously placed in spray bottles, provided with appropriate nozzles, loaded with propellant gas.
One of the advantages is that the residual product does not come in contact with atmospheric air, which would act as a catalyser, preserving it from degradation. Another advantage is that the stucco thus delivered is not handled before its application and is not dirtied in any way.
Moreover, the stucco in the bottle is in a compressed state, thus occupying a smaller volume than in its free form, with considerable advantages also for storage and transport.
The stucco is thus distributed and applied in simple fashion, even from inconvenient positions, directly on the surface to be repaired, without necessarily using additional tools. Moreover, the bottle dispenses only the needed quantity of stucco, without waste. Spray delivery finds particular advantage for applications on horizontal surfaces, such as ceilings.
The composition of the present invention comprises elements that provide the product with particular characteristics of lightness, such as hollow glass microspheres. The person skilled in the art will, however, understand that the invention is not limited to compositions that contain them, but that elements that provide the desired properties of lightness and ease of delivery are equally usable and included in the scope of protection.
If heavier components are used, such as quartziferous sands, even if ventilated, they alone would provide the product with heaviness, large thickness, high specific weight, making spray delivery problematic as well. The author has therefore devised particular lightened compositions.
Therefore, the object of the present invention is an aqueous stucco composition suitable for spray delivery comprising essentially at least:
- inert hollow micro-spheres;
- a water-soluble acrylic polymer bonding agent; - a fluidising agent;
- a catalysing agent.
The quantities by weight of the different components are such as to provide the product with the desired characteristics of ease of delivery, fluidity, lightness, and convenient drying times. In general, such characteristics are obtained with compositions with specific weight ranging between 0.20 and 0.40, preferably between 0.25 and 0.35.
Preferably, the inert hollow micro-spheres are glass micro-spheres, more preferably in a percentage by weight of between about 15% and about 30%, more preferably between about 18% and about 25%.
Preferably, the acrylic polymer is Acrilem IC79 or ST198, more preferably in a percentage by weight of between about 25% and about 60%. Preferably, the fluidising agent is oleic acid and/or triethanolamine, more preferably in a percentage by weight of between about 0.3% and about 1.5%.
Preferably, the catalysing agent is calcium hydroxide or calcium carbonate, alternatively it is scagliola, yet more preferably in a percentage by weight of between about 0.1 % and about 4%. ,
In a preferred embodiment, the composition also comprises an evaporation accelerating agent, such as an alcohol and/or propylene glycol, preferably in a percentage by weight of between about 0.5% and about 3%. In a preferred embodiment, the composition also comprises a mould-preventing agent. The preferred stucco composition comprises the following ingredients, in percentage by weight: Acrilem ST198 38%; Water 34%; Oleic Acid 0.6%; Triethanolamine T.E.A. 0.6%; Mould-preventing agent 0.03%; Glass micro¬ spheres K1 21.6%; Scagliola 4%.
The person skilled in the art will understand that variations in the composition and in the percentages by weight fall within the scope of protection. A further object of the invention is a method for the preparation of an aqueous stucco composition suitable for spray delivery as described, comprising essentially the steps of:
- mixing a first phase A comprising water, acrylic polymer bonding agent, methyl cellulose (if present), sodium hydroxide, calcium carbonate or calcium hydroxide (if present);
- to said phase A adding a phase B comprising fluidising agents, in such a way as to obtain a homogeneous phase C;
- to said phase C are added the inert particles. Another object of the present invention is a container with spray delivery containing the described stucco composition.
The present invention shall now be described with reference to non limiting examples. The person skilled in the art will understand that variations of the components and of their percentages by weight fall within the scope of the invention if suitable to provide a stucco composition able to be delivered by spraying and the functional characteristics of the described composition, i
Preparation and operation method
At ambient temperature, the components are mixed in a first phase A comprising water, acrylic polymer bonding agent, methyl cellulose (if present), sodium hydroxide, calcium carbonate or calcium hydroxide (if present);
A phase B comprising the fluidising agents (triethanolamine and/or oleic acid) is prepared.
The phases A and B are mixed until obtaining a homogeneous Phase C, to which are added the inert particles, also by mixing.
The balancing of the components and the quantity of water are such as to obtain an optimal drying of the stucco, at most within 24-48 hours for a thickness of 2 mm.
The stucco is drawn also by means of pistons and introduced in bottles. The bottles can be of the type with internal bag, or of the type without it. In the first case (bottle with bag) the gas, activated by means of a valve, compresses the bag causing the stucco to escape. In the second case, a suitable piston causes the stucco to escape.
In the following Examples: S.W. = specific weight
Example 1 - Composition 1
Figure imgf000006_0001
Example 2 - Composition 2
Figure imgf000006_0002
Example 3 - Composition 3
Figure imgf000007_0001
Example 4 - Composition 4
Figure imgf000007_0002
Example 5 - Composition 5
Figure imgf000008_0001
Example 6- Composition 6
Figure imgf000008_0002
Example 7 - Composition 7
Figure imgf000009_0001

Claims

1. An aqueous stucco composition suitable for spray delivery comprising essentially at least: - inert hollow micro-spheres;
- a water-soluble acrylic polymer bonding agent;
- a fluidising agent;
- a catalysing agent;
2. Composition as claimed in claim 1 having specific weight ranging between 0.20 and 0.40.
3. Composition as claimed in claim 2 having specific weight ranging between 0.25 and 0.35.
4. Composition as claimed in the previous claims, wherein the inert hollow micro¬ spheres are glass micro-spheres.
5. Composition as claimed in claim 4 wherein the glass micro-spheres are present in a percentage by weight ranging between 15 and 30%.
6. Composition as claimed in claim 4 wherein the glass micro-spheres are present in a percentage by weight ranging between 18 and 25%.
7. Composition as claimed in one of the previous claims wherein the acrylic polymer is Acrilem IC79 or ST198.
8. Composition as claimed in claim 7 wherein the acrylic polymer is present in a percentage by weight ranging between about 25% and about 60%.
9. Composition as claimed in one of the previous claims wherein the fluidising agent is oleic acid and/or triethanolamine.
10. Composition as claimed in claim 9 wherein the fluidising agent is present in a percentage by weight ranging between about 0.3% and about 1.5%.
11. Composition as claimed in one of the previous claims wherein the catalysing agent is calcium carbonate, calcium hydroxide or scagliola.
12. Composition as claimed in claim 11 wherein the catalysing agent is present in a percentage by weight ranging between about 0.1% and about 4%.
13. Composition as claimed in one of the previous claims further comprising an evaporation accelerating agent, such as an alcohol and/or propylene glycol.
14. Composition as claimed in claim 13 wherein the evaporation accelerating agent is present in a percentage by weight ranging between about 0.5% and about 3%.
15. Composition as claimed in any of the previous claims, further comprising a mould-preventing agent.
16. Composition as claimed in any of the previous claims, comprising the following ingredients in percentage by weight: Acrilem ST198 38%; Water 34%; Oleic Acid 0.6%; Triethanolamine T.E.A. 0.6%; Mould-preventing agent 0.03%; Glass micro¬ spheres K1 21.6%; Scagliola 4%.
17. A method for the preparation of an aqueous stucco composition suitable for spray delivery as claimed in any of the previous claims, comprising essentially the steps of:
- mixing a first phase A containing water, acrylic polymer bonding agent, methyl cellulose (if present), sodium hydroxide, calcium carbonate or calcium hydroxide (if present);
- to said phase A adding a phase B comprising fluidising agents, in such a way as to obtain a homogeneous phase C;
- to said phase C adding the inert particles.
18. A container for spray delivery containing the stucco composition as claimed in any of the claims 1 through 16.
PCT/IT2005/000647 2004-11-08 2005-11-07 Stucco suitable for spray delivery and container therefor WO2006048917A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05813193A EP1828076A2 (en) 2004-11-08 2005-11-07 Stucco suitable for spray delivery and container therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD2004A000276 2004-11-08
ITPD20040276 ITPD20040276A1 (en) 2004-11-08 2004-11-08 STUCCO DISPENSER.

Publications (2)

Publication Number Publication Date
WO2006048917A2 true WO2006048917A2 (en) 2006-05-11
WO2006048917A3 WO2006048917A3 (en) 2006-08-03

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Country Status (3)

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IT (1) ITPD20040276A1 (en)
WO (1) WO2006048917A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPS20120028A1 (en) * 2012-12-21 2014-06-22 Paolo Marchionni MIXTURE FOR THE CREATION OF PLASTERS FROM PLASTER
ITBA20130060A1 (en) * 2013-08-01 2015-02-02 Lidiana Miotto CELLULOSE BASED PRODUCT FOR CONSTRUCTION, FURNITURE AND FINE ARTS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044286A2 (en) * 1980-07-04 1982-01-20 KemaNord AB A method of securing adhesion
US4388424A (en) * 1981-11-05 1983-06-14 Scm Corporation Caulk containing microballoons
US4391647A (en) * 1981-07-06 1983-07-05 Sand And Sea Corporation Spackeling composition
EP1207081A2 (en) * 2000-11-18 2002-05-22 Bayerische Motoren Werke Aktiengesellschaft Insulation layer in particular for motor vehicle bodyparts
WO2003040243A1 (en) * 2001-11-08 2003-05-15 Tetrosyl Limited Filling composition containing hollow glass spheres

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1160307A (en) * 1997-08-06 1999-03-02 Ohbayashi Corp Instant set type composition for spraying work

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044286A2 (en) * 1980-07-04 1982-01-20 KemaNord AB A method of securing adhesion
US4391647A (en) * 1981-07-06 1983-07-05 Sand And Sea Corporation Spackeling composition
US4388424A (en) * 1981-11-05 1983-06-14 Scm Corporation Caulk containing microballoons
EP1207081A2 (en) * 2000-11-18 2002-05-22 Bayerische Motoren Werke Aktiengesellschaft Insulation layer in particular for motor vehicle bodyparts
WO2003040243A1 (en) * 2001-11-08 2003-05-15 Tetrosyl Limited Filling composition containing hollow glass spheres

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "3M Glass and Ceramic Microspheres"[Online] 18 July 2001 (2001-07-18), XP002232749 Retrieved from the Internet: URL:http://www.3m.com/microspheres> *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08, 30 June 1999 (1999-06-30) & JP 11 060307 A (OHBAYASHI CORP), 2 March 1999 (1999-03-02) -& DATABASE WPI Section Ch, Week 199919 Derwent Publications Ltd., London, GB; Class A93, AN 1999-225930 XP002380555 & JP 11 060307 A (OHBAYASHI GUMI KK) 2 March 1999 (1999-03-02) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPS20120028A1 (en) * 2012-12-21 2014-06-22 Paolo Marchionni MIXTURE FOR THE CREATION OF PLASTERS FROM PLASTER
ITBA20130060A1 (en) * 2013-08-01 2015-02-02 Lidiana Miotto CELLULOSE BASED PRODUCT FOR CONSTRUCTION, FURNITURE AND FINE ARTS

Also Published As

Publication number Publication date
WO2006048917A3 (en) 2006-08-03
ITPD20040276A1 (en) 2005-02-08
EP1828076A2 (en) 2007-09-05

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