NZ619238B2 - Use of aldehyde scavengers in interior building products - Google Patents

Use of aldehyde scavengers in interior building products Download PDF

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Publication number
NZ619238B2
NZ619238B2 NZ619238A NZ61923812A NZ619238B2 NZ 619238 B2 NZ619238 B2 NZ 619238B2 NZ 619238 A NZ619238 A NZ 619238A NZ 61923812 A NZ61923812 A NZ 61923812A NZ 619238 B2 NZ619238 B2 NZ 619238B2
Authority
NZ
New Zealand
Prior art keywords
ammonium
building product
interior building
phosphate
approximately
Prior art date
Application number
NZ619238A
Other versions
NZ619238A (en
Inventor
Salvatore Immordino
Runhai Lu
Terry L Rosenstiel
Weixin D Song
Original Assignee
Usg Interiors Llc
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
Priority claimed from US13/490,595 external-priority patent/US20130023612A1/en
Application filed by Usg Interiors Llc filed Critical Usg Interiors Llc
Publication of NZ619238A publication Critical patent/NZ619238A/en
Publication of NZ619238B2 publication Critical patent/NZ619238B2/en

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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62DCHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/33Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00Compositions of 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 alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D161/00Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D161/00Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/20Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C09D161/26Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C09D161/28Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular

Abstract

Provided is a coating for application to the surface of an interior building product comprising a resin formulation, preferably including a melamine formaldehyde resin, and an aldehyde scavenger selected from the group consisting of: tetraethylene pentamine, propionamide, caprolactam, ammonium hydroxide, sodium bisulfate, sodium metabisulfite, ammonium primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and ammonium secondary phosphate, a combination of ammonium primary phosphate, ammonium secondary phosphate and a sulfite, a polyvinyl alcohol; adipic dihydrazide, and a combination of a polyvinyl alcohol and adipic dihydrazide. xide, sodium bisulfate, sodium metabisulfite, ammonium primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and ammonium secondary phosphate, a combination of ammonium primary phosphate, ammonium secondary phosphate and a sulfite, a polyvinyl alcohol; adipic dihydrazide, and a combination of a polyvinyl alcohol and adipic dihydrazide.

Description

USE OF ALDEHYDE SCAVENGERS IN INTERIOR NG PRODUCTS FIELD OF THE ION The present invention in general concerns coatings that are applied to interior building products, such as ceiling tile for example, wherein the coatings e an aldehyde ger that possesses the ability to tie-up any aldehydes, including formaldehyde, and/or other volatile organic compounds that may tend to be emitted from the basic or building products themselves and/or the coatings.
OUND OF THE INVENTION Many interior building products such as ceiling tiles, fiber panels and gypsum wallboard and other types of ard, for example, following their lation, can exhibit a tendency to emit aldehyde, including dehyde, vapors and/or other kinds of volatile organic compounds ("VOCs") to their surroundings. The sources of the aldehydes and other VOC’s may reside in the basic or building product itself or in coverings, coatings and other adjuncts applied to the basic interior building t.
The emission of the aldehydes and other VOCs can be undesirable and efforts can be undertaken to avoid their release into their surroundings because of their deleterious effects on human and animal health, as well as on the general comfort of humans and animals exposed to the emissions. In this regard, formaldehyde and certain other VOC’s that can be emitted fiom interior building products have been classified as cancer-causing agents.
Therefore, a need exists to l the emission of aldehydes, including formaldehyde, and other VOC’s from these interior building products. One method of doing so involves incorporating with the interior building products a substance that will tie-up the aldehydes and other VOC’s and prevent them from being released from the interior building products into the surrounding environment. Such substances can be incorporated into the interior building products either when the interior building products are ctured, at the time the interior building ts are installed or after the interior building products are installed for example.
One consideration in determining the suitability of any particular substance for the purpose of tying-up aldehydes and other VOC’s can be the effect the compo site that is formed as a result of the substance tying-up an aldehyde or another VOC has on the interior building 4246 product. That is to say that the composite should not adversely affect the physical or chemical properties or esthetic values of the interior building product.
SIJhdhdfidiHI()F'TIIEZIIJVHEIJII()}J As used herein the sion "aldehyde scavenger" is intended to refer to any substance used for the purpose of tying-up aldehydes and other VOC’s whether, for example, by covalent chemical bonding, ionic interaction, improved incorporation of the aldehydes and/or other VOC’s to the substrate at which the aldehydes and/ or other VOC’s are present, phase transformation, hydrogen bonding or otherwise.
According to one , the present invention concerns a coating for application to the surface of an interior building product, including a resin formulation characterized by its ability to strengthen the interior building product when d as a coating to the building product er with an aldehyde scavenger.
According to another aspect of the invention, the de ger is selected fiom the group consisting of; tetraethylene pentamine, namide, caprolactam, ammonium hydroxide, sodium bisulfate, sodium metabisulfite, um primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and ammonium secondary phosphate, a combination of ammonium primary phosphate, ammonium ary phosphate and a sulfite, a polyvinyl alcohol, adipic azide and a combination of a polyvinyl alcohol and adipic dihydrazide.
In a fiarther aspect of the invention, the resin formulation includes a melamine formaldehyde resin and the aldehyde scavenger ses dually, or in combination, a polyvinyl alcohol and adipic dihydrazide.
In an additional aspect of the invention, the melamine formaldehyde resin formulation comprises by weight: approximately 10% to 20% of a melamine formaldehyde resin; approximately 20% to 60% of a calcium carbonate filler and approximately 0% to 10% of a clay filler; approximately 20% to 80% water; an ammonium chloride and/or magnesium catalyst; and sufficient defoamer to suppress the formation of any foam in the resin formulation. In a particular embodiment of this additional aspect, the melamine dehyde resin formulation comprises by weight: approximately 10% to 20% of a melamine formaldehyde resin; 4246 approximately 35% of a calcium carbonate filler and approximately 5% of a clay filler; and approximately 40% water.
In yet another aspect of the invention, the interior building product to which the coating is applied can comprise ceiling tile.
DETAILED DESCRIPTIONS OF EXAMPLES OF THE INVENTION Examples of embodiments that incorporate one or more aspects of the present invention are described below. These examples are not intended to be limitations on the present invention.
Thus, for example, in some instances, one or more examples of the present invention described with reference to one aspect or embodiment can be utilized in other s and embodiments. In addition, certain terminology is used herein for convenience only and is not to be taken as limiting the present ion.
The present invention has application to a variety of interior building ts including, for example, ceiling tiles, fiber panels and gypsum wallboard and other types of wallboard and ses coatings that are applied to at least one surface of the interior building products. In a particular employment of the invention, the coating is applied to the back of a ceiling tile; that is, the surface of the ceiling tile that is not exposed. In an embodiment of the invention, the gs include a resin formulation characterized by its ability to then the interior ng products when applied as a coating to the building products together with an aldehyde scavenger.
The coatings can be applied to the surface of the ceiling tiles by employing spraying techniques or rollers that hold the coatings, for example, and can be applied at the tion of the tile- cturing process, at the time the ceiling tiles are installed or following the installation of the ceiling tiles for example.
In an embodiment of the ion, the resin formulation includes a ne formaldehyde resin such as, for e, a butylated form of the resin that is ved in n- butanol and xylene and then cross-linked with alkyd, epoxy, acrylic and polyester resins. The melamine formaldehyde resin forms a hard covering on the ceiling tile and provides the ceiling tile with the strength ed for the ceiling tile to remain intact while being suspended from open gridwork typically installed at the ceilings of interior structures for e.
In a particular aspect of the present invention, the melamine formaldehyde resin can be included in a melamine formaldehyde resin formulation included in the coatings of the invention 4246 comprising by weight: imately 10% to 20% of the melamine formaldehyde resin; approximately 20% to 60% of a calcium carbonate filler and approximately 0% to 10% of a clay filler; approximately 20% to 80% water; an effective amount of an ammonium chloride and/or magnesium chloride catalyst; and sufficient defoamer to suppress the formation of any foam in the resin formulation. In an embodiment of this particular aspect of the invention, the melamine dehyde resin can be included in a melamine formaldehyde resin formulation comprising by weight: imately 10% to 20% of a melamine formaldehyde resin; approximately 35% of a calcium carbonate filler and approximately 5% of a clay filler; and approximately 40% water.
In addition to the resin formulation, the coatings of the present invention include an aldehyde scavenger. The primary function of the aldehyde scavenger is to tie-up any aldehydes and other VOC’s that may tend be emitted from the ceiling tiles lves and/or coatings applied to the ceiling tiles and t such aldehydes and other VOC’s fiom being emitted into the surroundings where the g tiles have been installed. The tying-up of any aldehydes and other VOC’s can occur, for example, as a result of covalent al bonding, ionic ction, improved incorporation of the aldehydes and/or other VOC’s to the ceiling tiles at which the aldehydes and/or other VOC’s are present, phase transformation, hydrogen bonding or ise.
When a formaldehyde resin formulation is employed in the coatings, typically the emission of aldehydes will arise from that formulation. However, the aldehydes and any other VOC’s that may tend to be emitted can arise from any of the components that go into the manufacture of the ceiling tile. The coatings, including the aldehyde scavenger, can be applied to the ceiling tiles either when the ceiling tiles are manufactured, at the time the ceiling tiles are installed or after the ceiling tiles are installed.
In accordance with one aspect of the invention, the aldehyde scavenger can comprise a scavenger selected from the group consisting of; thylene pentamine, propionamide, caprolactam, ammonium hydroxide, sodium bisulfate, sodium metabisulfite, ammonium primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and um secondary phosphate, a combination of ammonium primary ate, ammonium secondary phosphate and a sulfite, a polyvinyl alcohol, adipic azide and a combination of a polyvinyl alcohol and adipic dihydrazide. In particular embodiments of the present invention, the aldehyde scavenger can comprise a polyvinyl alcohol such as Celvol® 2058 or Celvol® 2035 having a Chemical Abstracts Service registry number ("CAS Number") 4246 of 25213—24-5, adipic azide, and a combination of a polyvinyl alcohol such as Celvol® 2058 or Celvol® 2038 having a Chemical Abstracts Service ry number ("CAS Number") of 252135 and adipic dihydrazide.
While the present invention has been described above and illustrated with reference to certain embodiments thereof, it is to be understood that the invention is not so limited. In addition, modifications and alterations of the aspects of the invention described herein will occur to those skilled in the art upon reading and tanding the specification, including the drawings. The present invention is intended to cover and include any and all such modifications and ions to the described embodiments that are encompassed by the following claims.

Claims (9)

WHAT WE CLAIM IS:
1. An interior building product including at least two exterior surfaces and a coating applied to at least one of the at least two exterior es, the coating comprising: a resin formulation ing a melamine dehyde resin characterized by its ability to strengthen the interior building product when applied as a coating to the building product; and an aldehyde scavenger selected from the group consisting of; tetraethylene pentamine, propionamide, caprolactam, ammonium hydroxide, sodium bisulfate, sodium metabisulfite, ammonium primary phosphate, ammonium secondary phosphate, a combination of ammonium primary phosphate and ammonium secondary ate, a combination of um primary phosphate, ammonium secondary phosphate and a sulfite, a polyvinyl l; adipic azide and a combination of a polyvinyl alcohol and adipic dihydrazide.
2. The interior building product of claim 1 wherein the de scavenger ses a polyvinyl alcohol.
3. The interior building product of claim 1 wherein the de scavenger comprises adipic dihydrazide.
4. The interior building product of claim 1 wherein the melamine formaldehyde resin formulation ses by weight: approximately 10% to 20% of a melamine formaldehyde resin; approximately 20% to 60% of a calcium ate filler and approximately 0% to 10% of a clay filler; approximately 20% to 80% water; a st selected from the group consisting of; ammonium chloride, magnesium chloride and a combination of ammonium chloride and magnesium chloride; and sufficient defoamer to suppress the formation of any foam in the resin formulation.
5. The interior building product of claim 4 wherein the melamine formaldehyde resin formulation comprises by weight: approximately 10% to 20% of a melamine formaldehyde resin; approximately 35% of a calcium carbonate filler and approximately 5% of a clay filler; approximately 40% water.
6. The interior building product of claim 5 wherein the aldehyde scavenger comprises a polyvinyl alcohol.
7. The interior building product of any one of claims 1 to 6 wherein the interior ng t comprises ceiling tile.
8. The coating of claim 5 wherein the aldehyde scavenger comprises a combination of a polyvinyl alcohol and adipic dihydrazide.
9. An interior building product including at least two exterior surfaces and a component that emits one or more volatile organic nds that can be tied-up and prevented from being released from the interior building product by an aldehyde scavenger, a coating applied to at least one of the at least two exterior es, the coating comprising: a resin formulation including a melamine formaldehyde resin characterized by its y to strengthen the interior building product when applied as a coating to the building product; and an aldehyde scavenger selected from the group consisting of; tetraethylene pentamine, propionamide, caprolactam, um hydroxide, sodium bisulfate, sodium sulfite, um primary phosphate, ammonium secondary phosphate, a ation of ammonium primary phosphate and ammonium secondary phosphate, a combination of ammonium primary phosphate, um secondary phosphate and a sulfite, a polyvinyl alcohol; adipic dihydrazide and a ation of a polyvinyl alcohol and adipic dihydrazide.
NZ619238A 2011-07-21 2012-07-17 Use of aldehyde scavengers in interior building products NZ619238B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201161510109P 2011-07-21 2011-07-21
US61/510,109 2011-07-21
US13/490,595 2012-06-07
US13/490,595 US20130023612A1 (en) 2011-07-21 2012-06-07 Use of aldehyde scavengers in interior building products
PCT/US2012/046985 WO2013012828A1 (en) 2011-07-21 2012-07-17 Use of aldehyde scavengers in interior building products

Publications (2)

Publication Number Publication Date
NZ619238A NZ619238A (en) 2016-02-26
NZ619238B2 true NZ619238B2 (en) 2016-05-27

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