Classifications

• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/28—Compounds of silicon
• • 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
• • 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
  • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
  • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/02—Compounds of alkaline earth metals or magnesium
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
  • C09C1/40—Compounds of aluminium
  • C09C1/42—Clays
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
  • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
  • C09C3/10—Treatment with macromolecular organic compounds
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D131/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
  • C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
  • C09D131/04—Homopolymers or copolymers of vinyl acetate
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
  • C09D5/34—Filling pastes
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/60—Additives non-macromolecular
  • C09D7/61—Additives non-macromolecular inorganic
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/66—Additives characterised by particle size
  • C09D7/69—Particle size larger than 1000 nm
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2004/00—Particle morphology
  • C01P2004/60—Particles characterised by their size
  • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/10—Solid density
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/12—Surface area
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
  • C01P2006/00—Physical properties of inorganic compounds
  • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
  • C08K3/00—Use of inorganic substances as compounding ingredients
  • C08K3/34—Silicon-containing compounds
• • 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
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W30/00—Technologies for solid waste management
  • Y02W30/50—Reuse, recycling or recovery technologies
  • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

• the present invention relates to a process for producing building material for painting or filling containing dehumidified silt and an adhesive.
• Materials such as: paints to paint walls, metals, plastic, ceramics, paper and cardboard, cork, rubber, galvanized materials, wood and PVC; the paints may be applied by means of paintbrush, roller or spraying; fillers, used as filling materials, for instance to carry out decorations or levelling on various kinds of walls are known.
• Polyacetovinyl adhesives are known, including polyvinylacetate or a polyacetovinyl emulsion.
• paint consist of a mixture of the following substances: an inert material in the form of powder obtained industrially by a specific process, such as granite (e.g. mica), gypsum, Biancone, calcium carbonate, limestone and silica; a polyacetovinyl adhesive;
• Such paints generally display a specific gravity in the range between 1,3 kg/dm 3 and 1,8 kg/dm 3 .
• Some kinds of fillers consist of a mixture of the following substances: an inert material such as those mentioned above; a polyacetovinyl adhesive; lime or adhesive lime and different kinds of cement;
• inert material is often formed by sand, limestone or gypsum; such materials could be raw. Normally, materials for general use are employed. Such materials, which are extracted, refined, processed and subsequently marketed, display excessively pure features, thus determining a pointless waste of resources. For instance, such materials must be extracted, crushed, sieved and possibly washed with a considerable waste of resources, both in terms of energy consumption and of raw materials, such as water for washing, which generally comes from a waterworks for domestic use and therefore is pointlessly drinkable.
• the processing of material often includes the following steps: a step of fragmenting the extracted material, carried out in a dry environment by mechanical means; - a step of riddling, generally in a wet environment, by means of which the fragments of material are introduced above an inclined sieve and are sprinkled with water, in order to precipitate the powders, which usually include granules having a diameter in the range between 1 ⁇ m and 1000 ⁇ m, through the interstices of the sieve; the material that does not precipitate is used for the intended purposes; the dusts, which are wet and are in the form of (inert aqueous) silt, are discarded.
• silt The disposal of silt is complicated, expensive and technically difficult, because it is not easy to find sites suitable for the disposal of materials in a muddy form, such as silt. Strict laws govern the disposal in appropriate areas.
• such an object is achieved by means of a process for the preparation of building material, characterised in that it comprises the following steps: fragmenting the inert material, riddling said fragmented material by washing to form silt, dehumidifying said silt in order to form a dense powder having a humidity in the range between 1% and 30%, and mixing said dense powder with an adhesive in an amount ratio of dense powder/adhesive from 1/1 to 30/1.
• Such an adhesive is generally of the po Iy aceto vinyl kind, in particular an aceto vinyl homopolymer in an aqueous dispersion, or an acrylic polymer again in an aqueous dispersion.
• the building material obtained according to the invention may be used as a non- film- forming paint, which is washable, isolating, elastic and may be applied without a primer, suitable both for indoors and outdoors and results being an excellent protective and dyeing material for the cement. It is also suitable for covering dumps, as a fixing agent for the road surface, for painting swimming-pools as it is water-repellent, and for covering glasshouses.
• the building material according to the invention may serve as a water- proof filler, which is water resistant, impact resistant, elastic to torsion, it may be used without a primer, it may be painted and sanded on iron, wood, PVC, ceramics, plastics and other materials.
• the building material according to the invention is not harmful, nor toxic, nor inflammable.
• the wet cast silt may be pressed in filter presses, centrifugal machines or band filters, during the step of riddling for approximately 30 minutes.
• the control over the process is a lot better with respect to the traditional decantation in pools and precise values of humidity may be obtained, the optimal value preferably being 20%, as stated above.
• the obtained dense represents the raw material to obtain the plaster or the paint as disclosed hereinafter.
• Such a dense is mixed with a po Iy aceto vinyl adhesive (an aceto vinyl homopolymer in an aqueous dispersion) generally in a ratio in the range between 1/1 and 1/30, i.e. for instance an amount of dense varying between 1 and 30 kg is required for 1 kg of adhesive depending on the use.
• a po Iy aceto vinyl adhesive an aceto vinyl homopolymer in an aqueous dispersion
• silt could be used containing limestone, marble, clay, silica or other dusts, or possibly mixtures of such materials found in marble, limestone, gypsum or other quarries
• the po Iy aceto vinyl adhesive employed is characterised by a weight of 1 kg per 1,1 litres of occupied volume (1 kg of adhesive should generally occupy 0,700-1,3 litres in volume), a solid content percentage (dry at 80 0 C for 30 minutes) in the range between 50% and 55% (preferably 52%), a Brookfield viscosity in the range between 9000 m(Pa)s and 15000 m(Pa)s
• One of the advantages of the present invention consists in that 100% natural colours may be obtained as they are characteristic of the rocks of the extraction quarry. No dyes, i.e. no polluting oxides, need to be added. Therefore, there are no dying costs nor problems with ecocompatibility, the adhesive being commercially available and thus attested. Colours other than the natural ones characteristic of the quarry may be obtained by combining together natural paints obtained according to the invention.
• the granules have a diameter in the range between 1 ⁇ m and 500 ⁇ m.
• the particle size of finishing mortar is equal or higher than 500 ⁇ m. Accordingly, it has been found that, if 25 kg of a known mortar are required to shave (with a levelling agent) a surface corresponding to 2-5 m 2 with a shaving thickness of 1-2 mm, then 25 kg of a paint according to the present invention are enough to shave by brush or roller a surface corresponding to 15-25 m 2 (4 times more) with a thickness of 0,5 mm (about 5 times less).
• These performance data allow for instance the use of the paint on a plaster having no levelling agent, the small particle size allowing to properly fill all of the rough interstices.
• the economical advantage is obvious: the building material is less expensive to produce (the silt is expensive to dispose of) and the building material required to carry out the same construction is less with improved work times.
• acrylic polymer adhesives may also be used in an aqueous dispersion (1 kg of said adhesive occupies a volume of about 1 litre, more generally a volume from 0,700 to 1,3 litres as the poly aceto vinyl adhesive).
• filler includes the insertion of adhesive lime or, as an alternative, the use of decanted lime with even greater specific gravity with respect to the silt for paint.
• the invention may be marketed by constructing a plant containing bins for each dense powder of a certain silt recovery quarry, one or more adhesive bins, and a control centre adapted to allow the selection of the colour and the application.
• the inert material may be provided non only from natural quarry, but also from impermanent excavation or masonry debris, more generally recycling material.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Ceramic Engineering (AREA)
• Inorganic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Structural Engineering (AREA)
• Dispersion Chemistry (AREA)
• Nanotechnology (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Paints Or Removers (AREA)
• Developing Agents For Electrophotography (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39528452

Family Applications (1)

Country Status (3)

Family Cites Families (5)

• 2007
  • 2007-02-22 IT IT000342A patent/ITMI20070342A1/it unknown
• 2008
  • 2008-02-15 EP EP08716889A patent/EP2115078A1/en not_active Withdrawn
  • 2008-02-15 WO PCT/EP2008/051886 patent/WO2008101879A1/en active Application Filing

Non-Patent Citations (1)

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