US20160305685A1 - Protective Air Barrier Sealant for Conditioned and Unconditioned Building Walls - Google Patents

Protective Air Barrier Sealant for Conditioned and Unconditioned Building Walls Download PDF

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US20160305685A1
US20160305685A1 US15/198,025 US201615198025A US2016305685A1 US 20160305685 A1 US20160305685 A1 US 20160305685A1 US 201615198025 A US201615198025 A US 201615198025A US 2016305685 A1 US2016305685 A1 US 2016305685A1
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air barrier
barrier sealant
air
sealant
polyurethane material
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US15/198,025
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William Davis COLLINS
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SEALANTTECH
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SEALANTTECH
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Priority claimed from US12/569,937 external-priority patent/US20110077316A1/en
Priority claimed from US12/785,900 external-priority patent/US9068088B2/en
Priority claimed from US14/741,746 external-priority patent/US9382704B2/en
Application filed by SEALANTTECH filed Critical SEALANTTECH
Priority to US15/198,025 priority Critical patent/US20160305685A1/en
Publication of US20160305685A1 publication Critical patent/US20160305685A1/en
Assigned to SEALANTTECH reassignment SEALANTTECH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLLINS IP, LLC
Assigned to COLLINS IP, LLC reassignment COLLINS IP, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLLINS, WILLIAM DAVIS
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0281—Multilayer duct
    • 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
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/012—Additives activating the degradation of the macromolecular compounds
    • 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
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/015—Biocides
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0066—Flame-proofing or flame-retarding additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • 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
    • C09D7/48—Stabilisers against degradation by oxygen, light or heat
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • C09K3/1021—Polyurethanes or derivatives thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2101/00—Manufacture of cellular products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2150/00—Compositions for coatings
    • C08G2150/60—Compositions for foaming; Foamed or intumescent coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2190/00—Compositions for sealing or packing joints
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/10—Rigid foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2207/00—Foams characterised by their intended use
    • C08J2207/04—Aerosol, e.g. polyurethane foam spray
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • 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
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2003/1034—Materials or components characterised by specific properties
    • C09K2003/1078—Fire-resistant, heat-resistant materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7604—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only fillings for cavity walls
    • 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
    • Y10T428/23—Sheet including cover or casing
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249976—Voids specified as closed
    • Y10T428/249977—Specified thickness of void-containing component [absolute or relative], numerical cell dimension or density

Definitions

  • the present invention relates to air barrier products. Furthermore, the present invention relates to air barrier products with ultraviolet, insulation, fire and antimicrobial protection for application to building enclosures, walls, ductwork, and to systems and methods relating thereto.
  • Air barrier systems essentially wrap the building shell and protect the building from the effects of air leakage. Air leakage can have detrimental effects on how a building functions and reduces the life span of a building.
  • Air leakage can result in an increased use of up to 30-40% in heating costs and 10-15% in cooling costs.
  • Air barrier systems also provide a barrier to pollutants entering either the building or the building enclosure.
  • Water vapor, suspended particulates, dust, insects, smells, etc are all pollutants which building occupants prefer to keep out of the building.
  • Water vapor that leaks into the building enclosure can condense and form liquid water, a key component to corrosion and the development of mold.
  • Polyurethane foam is known in the prior art as an air barrier material. Like a number of plastics, polyurethane foam loses resistance when exposed to UV light over a long period of time. With even short-term exposure, the surface of the foam changes, specifically the top molecular layer is damaged. The surface then becomes brown and brittle to a depth of one or two mm. For this reason, a layer of UV protection, most often UV paint, is applied to polyurethane foam on exteriors. If the polyurethane foam is applied to a roof it is necessary to use a high-quality UV protection layer with a long life. In some cases, these paints can also assume other functions such as water insulation or scratch protection. UV protection layers that are not integrated with the polyurethane require maintenance because the layer becomes damaged and/or weathered.
  • the present invention relates to air barriers for building envelopes in both conditioned and unconditioned living areas with ultraviolet, insulation, fire and antimicrobial protection.
  • the invention also provides insulation (R-value) to the wall along with ingredients that will make the sealant fire proof.
  • Yet another object of this invention is to provide methods for applying to surfaces the product that provides air barrier protection, UV protection and insulation (R-Value) and fire proofing.
  • FIG. 1 is a graph showing data associated with test results of the air barrier sealant product according to one embodiment of the present invention.
  • the present invention provides a protective air barrier sealant including a high density polyurethane foam material provided in an amount, volume, and density effective for providing a protective air barrier for an enclosure, wherein the air barrier material is combined with at least one UV, fire and antimicrobial protectant agent just prior to or at the time of application of the air barrier product to an enclosure surface.
  • the air barrier sealant also provides a protective air barrier for surfaces from microbes, mold, mildew, gas deterioration, moisture deterioration, insects and damage from corrosion and combinations thereof, and insulating (R-Value) properties for the enclosure.
  • the present invention provides methods for applying to surfaces the protective air barrier product that provides air barrier protection and insulative (R-Value) properties.
  • an embodiment of the present invention includes at least one antimicrobial ingredient added to this air barrier sealant.
  • the protective air barrier, insulative, UV-protectant, fire proof and antimicrobial sealant of the present invention is importantly established with an exposed polyurethane foam containing an integrated UV protectant on a UV-exposed surface area of an enclosure, and methods of applying the same to hard surfaces for providing an air barrier effective against damage from moisture, air and vapor, and deterioration by ultraviolet light, microorganisms, fungi, pests, and insects, as well as providing a physical air barrier to resist damage and/or wear and stop air leakage into or out of the building enclosure.
  • the present invention provides an air barrier sealant for protecting surfaces including a material having a top exposed surface that is spaced apart from a bottom surface wherein the spaced apart distance provides for an insulative thickness of the foam material, forming a coating on at least one enclosure surface.
  • the product further includes at least one ultraviolet protectant capable of preventing ultraviolet degradation of the product.
  • the air barrier sealant is a dual component formulation, wherein the air barrier components are combined or mixed prior to or at the time of application of the air barrier to the enclosure surface.
  • the air barrier sealant is a single component formulation.
  • the ultraviolet protectant is added to the polyurethane chemistry at the time of its manufacturing and is a raw ingredient of the finished formula. It is designed to stay in suspension in the liquid until it is sprayed at the job site.
  • the ingredient is of a design and formulation that it allows it to stay in suspension until sprayed, thus giving a uniform ultraviolet protection throughout the finished product.
  • the UV protectant is selected from the group consisting of applications that allow the applicator to spray one application which will provide the UV protection without having to take the time and money to spray a second application.
  • This one step application also provides for a very fast project which allows for the applicator to do the work in a timely manner and not hold up additional projects which may be scheduled for work after the air barrier sealant is applied.
  • a colorant is used as our UV protectant in the air barrier sealant according to the present invention.
  • the UV protectant colorizes the air barrier product black and it is the black color that will absorb the UV rays which come in contact with the sealant.
  • carbon black can be used to colorize black and provide UV protection. If the UV rays are absorbed by the sealant material, then the material will not break down, which extends the sealant protection for many years.
  • the insulation (R-Value) ability of the air barrier sealant according to the present invention comes from the fact that this polyurethane chemistry utilizes closed cell technology at the time of its manufacturing and is a raw ingredient of the finished formula.
  • the closed cell polyurethane foam of the present invention is the most energy efficient system available and becomes so with increased density.
  • This air barrier sealant uses the closed cells of the chemistry to provide the insulation factor of the material when it is applied and it is the ability of this sealant to “rise” that gives the additional insulation factor.
  • It is the two component chemistry as sprayed through a proportioning type mixing system that allows for the finished sealant to be manufactured upon coming in contact with air.
  • the finished sealant is the combination of the two components mixing in the air and then curing on the wall surface.
  • at least one of the components is put under a pressure of 1,500 psi.
  • at least one of the components is put under a temperature of 130 to 150 degrees Fahrenheit.
  • the fire proof protectant used with the sealant according to the present invention is selected from the group consisting of special technologies that prevent the sealant from flashing or burning, such as, for example, polybrominated diphenyl ethers (PBDEs).
  • PBDEs polybrominated diphenyl ethers
  • the fire proofing ingredient is added to the polyurethane chemistry at the time of its manufacturing and is a raw ingredient of the finished formula. It is designed to stay in suspension in the liquid until it is sprayed at the job site.
  • the ingredient is of a design and formulation that it allows it to stay in suspension until sprayed, thus giving a uniform fireproof protection throughout the finished product.
  • the antimicrobial ingredient is added to the polyurethane chemistry at the time of its manufacturing and is a raw ingredient of the finished formula. It is designed to stay in suspension in the liquid until it is sprayed at the job site.
  • the ingredient is of a design and formulation that it allows it to stay in suspension until sprayed, thus giving a uniform antimicrobial protection throughout the finished product
  • the antimicrobial ingredient provides antifungal or antibacterial protection or a combination thereof.
  • the combination of at least one antimicrobial agent within the sealant material ensures that no living organism grows on or within the sealant product including but not limited to the prevention of mold, mildew, bacteria, fungi or other microorganisms.
  • the barrier sealant provides protection to surfaces against external damage, agents or other forces including but not limited to microbes, mold, mildew, gas deterioration, moisture deterioration, insect damage and/or corrosion.
  • antimicrobial agents can be used.
  • quaternary ammonium compounds such as Microban®
  • silver compounds can be used. More preferably, nano silver, or silver nanoparticles, are used.
  • method steps include providing an air barrier product including a polyurethane material and at least one UV, fire and antimicrobial protectant agent; applying the air barrier product onto an enclosure surface in a continuous manner to form a continuous barrier; wherein upon application to the surface the polyurethane material expands to produce an insulative thickness between the enclosure surface and the top exposed surface of the air barrier sealant; and wherein the top exposed surface of the air barrier product provides UV protection.
  • the insulative thickness is preferably between about 1 ⁇ 8 inch to about 1 inch. In another preferred embodiment the insulative thickness is between about 1 ⁇ 8 inch to about 3 ⁇ 4 inches. In yet another preferred embodiment, the insulative thickness is between about 1 ⁇ 8 inch and 1 ⁇ 2 inch. In another preferred embodiment, the insulative thickness is between about 1 ⁇ 8 inch and 1 ⁇ 4 inch.
  • a dual component formulation, the combination of the at least one UV, fire and antimicrobial protectant agent with the polyurethane material may be combined prior to application of the air barrier sealant to the enclosure surface, or at the time of application (through controlled mixing or combination with an application device that provides for spraying of the polyurethane material and the at least one UV, fire and antimicrobial protectant agent until the time of application).
  • the air barrier sealant according to the present invention is preferably by spray application to the enclosure surface, and is a dual component mixing of the polyurethane material and the at least one UV, fire and antimicrobial protectant on site or location of the enclosure to be coated and protected by the air barrier sealant.
  • the final formulation of the air barrier sealant composition occurs during the mixing process just prior to or upon application (in the air during spray application) to the enclosure surface.
  • the polyurethane material expands to provide a thickness between about 1 ⁇ 8 inch (3.175 mm) and about 1 inch (25.4 mm).
  • the expansion of the polyurethane material provides for insulative thickness to provide energy efficient insulation when applied to building or room surfaces, including floors, walls, ceilings, etc.
  • the expansion of the polyurethane material also fills in cracks and holes that are major sources of air intrusion.
  • the final mixed and expanded state of the air barrier product provides a top exposed surface that is resistant to cracking, breaking, chipping, corrosion, or other deterioration, and provides a physical air barrier of protection to the coated enclosure. Also, this air barrier can act to reduce the impact upon the surface and increase its resistance to damage. Furthermore, the air barrier sealant adheres to the enclosure surface, so it resists delaminating or peeling as well.
  • the air barrier sealant is applicable to any enclosure surface, including but not limited to enclosure surfaces selected from metal, glass, wood, plastic, concrete, cinder block, asphalt, glass board, polyurethane foams and other air barrier type material such as caulks and the like, and combinations thereof.
  • the air barrier sealant is applicable to ductwork.
  • the ductwork is preferably rectangular. In another embodiment, the ductwork is circular.
  • the ductwork includes, by way of example and not limitation, an air duct boot, a wall cap, and/or a roof cap.
  • the present invention eliminates uncontrolled air leakage, improves occupant comfort, health and safety, improves indoor environmental quality, improves structural strength, reduces condensation, moisture and mold problems, conforms to any shape, and provides UV, fire and antimicrobial protection to exposed surfaces.
  • test results are illustrations for the purpose of describing a preferred embodiment of the invention and are not intended to limit the invention thereto.
  • laboratory application of the air barrier sealant according to the present invention was under ASTM standards applicable for ASTM E2178-03 Standard Test Method for Air Permeance of Building Materials , dated Aug. 21, 2009. This test was conducted at 1 ⁇ 4′′ thickness and in accordance to the current ASTM standards for Air Permeance Properties for building components. The evaluation was for one (1) specimen which was sealed within an air leakage test chamber.
  • Testing background and experimental protocols included the following: Specimens were sealed within the air leakage chamber. Air was exhausted from the chamber at rates required to maintain test pressure differences of 25, 50, 75, 100, 150, 250 and 300 Pa. The air leakage through the specimens were measured at each successive pressure difference and monitored for any physical changes. The air leakage of the specimens was then re-measured at pressure differentials of 100, 75, and 50 Pa, as required by the test procedure. Test results are indicated in Table 1 for air permeance properties.
  • FIG. 1 is a graph showing data associated with test results of an air barrier sealant product according to one embodiment of the present invention.
  • the regression curve fitted to the results has an R 2 value of 0.98689, indicating the non-deformable nature of the air barrier product with regard to changes in pressure.
  • the sealant of the present invention is indicated to be in conformance with the ABAA Spray Polyurethane Foam guidelines and to adhere to the test standards as established by the ABAA Process for Approval of Air Barrier Materials, Components and Assemblies JUNE 2007 Version 2.0 Draft (ABAA-10001-02). These test standards are shown in the following table, as applied to 1 ⁇ 4′′ thickness.
  • the present invention provides for sealants with a range of between about 1 ⁇ 4′′ and about 1′′ with at least the same properties.
  • the barriers include a range of between about 1 ⁇ 4′′ to about 3/16′′ between about 1 ⁇ 4′′ to about 3 ⁇ 8′′, between about 1 ⁇ 4′′ to about 1 ⁇ 2′′, between about 1 ⁇ 4′′ to about 2 ⁇ 3′′between about 1 ⁇ 4′′ to about 5 ⁇ 8′′, between about 1 ⁇ 4′′ to about 3 ⁇ 4′′, and between about 1 ⁇ 4′′ to about 7 ⁇ 8′′.
  • the barrier has a strength of 367.80 psi. In another embodiment of the invention, the barrier has an adhesion of 367.80 psi. In yet another embodiment, the strength of the barrier is equal to the strength of the underlying substrate. For example, if the barrier is applied to concrete, the strength of the barrier is equal to the strength of the concrete.

Abstract

A protective air barrier air barrier sealant and methods of applying the same, including a high density polyurethane chemistry provided in an amount, volume, and density effective for providing a protective air barrier for an enclosure, wherein the polyurethane material is combined with at least one UV, fire and antimicrobial protectant for providing UV protection to UV-exposed surfaces.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application is a continuation-in-part of U.S. patent application Ser. No. 14/741,746, filed Jun. 17, 2015, which is a continuation-in-part of U.S. patent application Ser. No. 12/785,900, filed May 24, 2010, which is a continuation-in-part of U.S. patent application Ser. No. 12/569,937, filed Sep. 30, 2009, each of which are expressly incorporated herein by reference in their entirety.
    • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to air barrier products. Furthermore, the present invention relates to air barrier products with ultraviolet, insulation, fire and antimicrobial protection for application to building enclosures, walls, ductwork, and to systems and methods relating thereto.
  • 2. Description of the Prior Art
  • It is generally known in the art to provide for air barrier systems to buildings to control the unintended movement of air into and out of building enclosures. Air barrier systems essentially wrap the building shell and protect the building from the effects of air leakage. Air leakage can have detrimental effects on how a building functions and reduces the life span of a building.
  • Buildings are air-conditioned for comfort at considerable expense. When this conditioned air leaks out of a building and unconditioned air leaks into a building additional energy must then be used to condition this air. Air leakage can result in an increased use of up to 30-40% in heating costs and 10-15% in cooling costs.
  • Buildings which have properly installed air barrier systems can operate properly with a smaller HVAC system that does not have to compensate for a leaky building. In some cases, the reduction in mechanical equipment size and cost can offset the cost of the air barrier system.
  • Air barrier systems also provide a barrier to pollutants entering either the building or the building enclosure. Water vapor, suspended particulates, dust, insects, smells, etc are all pollutants which building occupants prefer to keep out of the building. Water vapor that leaks into the building enclosure can condense and form liquid water, a key component to corrosion and the development of mold.
  • Relevant prior art references include U.S. Pat. Nos. 4,318,959; 4,596,725; 4,795,760; 4,939,184; 5,549,869; 5,583,230; 5,804,641; 5,900,195; 6,402,201; 6,887,966; 7,459,167; and US Patent Application Publication Nos. 20040077747; 20030207122.
  • Polyurethane foam is known in the prior art as an air barrier material. Like a number of plastics, polyurethane foam loses resistance when exposed to UV light over a long period of time. With even short-term exposure, the surface of the foam changes, specifically the top molecular layer is damaged. The surface then becomes brown and brittle to a depth of one or two mm. For this reason, a layer of UV protection, most often UV paint, is applied to polyurethane foam on exteriors. If the polyurethane foam is applied to a roof it is necessary to use a high-quality UV protection layer with a long life. In some cases, these paints can also assume other functions such as water insulation or scratch protection. UV protection layers that are not integrated with the polyurethane require maintenance because the layer becomes damaged and/or weathered.
    • SUMMARY OF THE INVENTION
  • The present invention relates to air barriers for building envelopes in both conditioned and unconditioned living areas with ultraviolet, insulation, fire and antimicrobial protection.
  • It is an object of this invention to provide an air barrier sealant using polyurethane chemistry and an integrated ultraviolet protection element provided in an amount, volume, and density effective for providing a protective air barrier with UV-resistance for enclosures with UV-exposed surfaces. The invention also provides insulation (R-value) to the wall along with ingredients that will make the sealant fire proof.
  • It is a further object of this invention to provide a protective air barrier sealant to protect enclosures from microbes, mold, mildew, allergens, pollutants, gas deterioration, moisture deterioration, and insect infestation through the use of antimicrobial technologies which are incorporated into the material.
  • Yet another object of this invention is to provide methods for applying to surfaces the product that provides air barrier protection, UV protection and insulation (R-Value) and fire proofing.
  • These and other aspects of the present invention will become apparent to those skilled in the art after a reading of the following description of the preferred embodiment when considered with the drawings, as they support the claimed invention.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a graph showing data associated with test results of the air barrier sealant product according to one embodiment of the present invention.
    •  DETAILED DESCRIPTION
  • Referring now to the drawings in general, the illustrations are for the purpose of describing a preferred embodiment of the invention and are not intended to limit the invention thereto.
  • The present invention provides a protective air barrier sealant including a high density polyurethane foam material provided in an amount, volume, and density effective for providing a protective air barrier for an enclosure, wherein the air barrier material is combined with at least one UV, fire and antimicrobial protectant agent just prior to or at the time of application of the air barrier product to an enclosure surface. The air barrier sealant also provides a protective air barrier for surfaces from microbes, mold, mildew, gas deterioration, moisture deterioration, insects and damage from corrosion and combinations thereof, and insulating (R-Value) properties for the enclosure. Furthermore, the present invention provides methods for applying to surfaces the protective air barrier product that provides air barrier protection and insulative (R-Value) properties.
  • It is a further object of this invention to provide a protective air barrier sealant to protect enclosures from microbes, mold, mildew, allergens, pollutants, gas deterioration, moisture deterioration, insect infestation through the use of its antimicrobial technology which is incorporated into the sealant. Thus, an embodiment of the present invention includes at least one antimicrobial ingredient added to this air barrier sealant.
  • None of the prior art references provide for an air barrier sealant which includes an integrated UV-protection agent wherein the barrier has at least one exposed surface.
  • Thus there remains a need for an air barrier sealant for controlling the unintended movement of air into and out of a building enclosure and offering integrated UV protection to exposed surfaces.
  • The protective air barrier, insulative, UV-protectant, fire proof and antimicrobial sealant of the present invention is importantly established with an exposed polyurethane foam containing an integrated UV protectant on a UV-exposed surface area of an enclosure, and methods of applying the same to hard surfaces for providing an air barrier effective against damage from moisture, air and vapor, and deterioration by ultraviolet light, microorganisms, fungi, pests, and insects, as well as providing a physical air barrier to resist damage and/or wear and stop air leakage into or out of the building enclosure.
  • The present invention provides an air barrier sealant for protecting surfaces including a material having a top exposed surface that is spaced apart from a bottom surface wherein the spaced apart distance provides for an insulative thickness of the foam material, forming a coating on at least one enclosure surface. The product further includes at least one ultraviolet protectant capable of preventing ultraviolet degradation of the product. Preferably, the air barrier sealant is a dual component formulation, wherein the air barrier components are combined or mixed prior to or at the time of application of the air barrier to the enclosure surface. In another embodiment, the air barrier sealant is a single component formulation.
  • The ultraviolet protectant is added to the polyurethane chemistry at the time of its manufacturing and is a raw ingredient of the finished formula. It is designed to stay in suspension in the liquid until it is sprayed at the job site. The ingredient is of a design and formulation that it allows it to stay in suspension until sprayed, thus giving a uniform ultraviolet protection throughout the finished product.
  • The UV protectant is selected from the group consisting of applications that allow the applicator to spray one application which will provide the UV protection without having to take the time and money to spray a second application. This one step application also provides for a very fast project which allows for the applicator to do the work in a timely manner and not hold up additional projects which may be scheduled for work after the air barrier sealant is applied.
  • Furthermore, preferably, a colorant is used as our UV protectant in the air barrier sealant according to the present invention. In a preferred embodiment, the UV protectant colorizes the air barrier product black and it is the black color that will absorb the UV rays which come in contact with the sealant. For example, carbon black can be used to colorize black and provide UV protection. If the UV rays are absorbed by the sealant material, then the material will not break down, which extends the sealant protection for many years.
  • The insulation (R-Value) ability of the air barrier sealant according to the present invention comes from the fact that this polyurethane chemistry utilizes closed cell technology at the time of its manufacturing and is a raw ingredient of the finished formula. Advantageously, the closed cell polyurethane foam of the present invention is the most energy efficient system available and becomes so with increased density. This air barrier sealant uses the closed cells of the chemistry to provide the insulation factor of the material when it is applied and it is the ability of this sealant to “rise” that gives the additional insulation factor. It is the two component chemistry as sprayed through a proportioning type mixing system that allows for the finished sealant to be manufactured upon coming in contact with air. The finished sealant is the combination of the two components mixing in the air and then curing on the wall surface. In one embodiment, at least one of the components is put under a pressure of 1,500 psi. In another embodiment, at least one of the components is put under a temperature of 130 to 150 degrees Fahrenheit.
  • The fire proof protectant used with the sealant according to the present invention is selected from the group consisting of special technologies that prevent the sealant from flashing or burning, such as, for example, polybrominated diphenyl ethers (PBDEs). The air barrier will add an additional layer of protection to the building envelop because it will not be considered a source for flame spread in the event of a fire.
  • The fire proofing ingredient is added to the polyurethane chemistry at the time of its manufacturing and is a raw ingredient of the finished formula. It is designed to stay in suspension in the liquid until it is sprayed at the job site. The ingredient is of a design and formulation that it allows it to stay in suspension until sprayed, thus giving a uniform fireproof protection throughout the finished product.
  • The antimicrobial ingredient is added to the polyurethane chemistry at the time of its manufacturing and is a raw ingredient of the finished formula. It is designed to stay in suspension in the liquid until it is sprayed at the job site. The ingredient is of a design and formulation that it allows it to stay in suspension until sprayed, thus giving a uniform antimicrobial protection throughout the finished product
  • The antimicrobial ingredient provides antifungal or antibacterial protection or a combination thereof. Preferably, the combination of at least one antimicrobial agent within the sealant material ensures that no living organism grows on or within the sealant product including but not limited to the prevention of mold, mildew, bacteria, fungi or other microorganisms. The barrier sealant provides protection to surfaces against external damage, agents or other forces including but not limited to microbes, mold, mildew, gas deterioration, moisture deterioration, insect damage and/or corrosion.
  • Various antimicrobial agents can be used. For example, quaternary ammonium compounds, such as Microban®, can be used. Additionally or alternatively, silver compounds can be used. More preferably, nano silver, or silver nanoparticles, are used.
  • In methods of using the air barrier sealant according to the present invention, method steps include providing an air barrier product including a polyurethane material and at least one UV, fire and antimicrobial protectant agent; applying the air barrier product onto an enclosure surface in a continuous manner to form a continuous barrier; wherein upon application to the surface the polyurethane material expands to produce an insulative thickness between the enclosure surface and the top exposed surface of the air barrier sealant; and wherein the top exposed surface of the air barrier product provides UV protection. The insulative thickness is preferably between about ⅛ inch to about 1 inch. In another preferred embodiment the insulative thickness is between about ⅛ inch to about ¾ inches. In yet another preferred embodiment, the insulative thickness is between about ⅛ inch and ½ inch. In another preferred embodiment, the insulative thickness is between about ⅛ inch and ¼ inch.
  • A dual component formulation, the combination of the at least one UV, fire and antimicrobial protectant agent with the polyurethane material, may be combined prior to application of the air barrier sealant to the enclosure surface, or at the time of application (through controlled mixing or combination with an application device that provides for spraying of the polyurethane material and the at least one UV, fire and antimicrobial protectant agent until the time of application).
  • Application of the air barrier sealant according to the present invention is preferably by spray application to the enclosure surface, and is a dual component mixing of the polyurethane material and the at least one UV, fire and antimicrobial protectant on site or location of the enclosure to be coated and protected by the air barrier sealant. In this manner, the final formulation of the air barrier sealant composition occurs during the mixing process just prior to or upon application (in the air during spray application) to the enclosure surface. At the time of application to the enclosure surface, the polyurethane material expands to provide a thickness between about ⅛ inch (3.175 mm) and about 1 inch (25.4 mm). The expansion of the polyurethane material provides for insulative thickness to provide energy efficient insulation when applied to building or room surfaces, including floors, walls, ceilings, etc. The expansion of the polyurethane material also fills in cracks and holes that are major sources of air intrusion. The final mixed and expanded state of the air barrier product provides a top exposed surface that is resistant to cracking, breaking, chipping, corrosion, or other deterioration, and provides a physical air barrier of protection to the coated enclosure. Also, this air barrier can act to reduce the impact upon the surface and increase its resistance to damage. Furthermore, the air barrier sealant adheres to the enclosure surface, so it resists delaminating or peeling as well. The air barrier sealant is applicable to any enclosure surface, including but not limited to enclosure surfaces selected from metal, glass, wood, plastic, concrete, cinder block, asphalt, glass board, polyurethane foams and other air barrier type material such as caulks and the like, and combinations thereof.
  • In an exemplary embodiment, the air barrier sealant is applicable to ductwork. The ductwork is preferably rectangular. In another embodiment, the ductwork is circular. The ductwork includes, by way of example and not limitation, an air duct boot, a wall cap, and/or a roof cap.
  • Thus, the present invention eliminates uncontrolled air leakage, improves occupant comfort, health and safety, improves indoor environmental quality, improves structural strength, reduces condensation, moisture and mold problems, conforms to any shape, and provides UV, fire and antimicrobial protection to exposed surfaces.
  • Referring now to testing results, in general, these test results are illustrations for the purpose of describing a preferred embodiment of the invention and are not intended to limit the invention thereto. In these test cases, laboratory application of the air barrier sealant according to the present invention was under ASTM standards applicable for ASTM E2178-03 Standard Test Method for Air Permeance of Building Materials, dated Aug. 21, 2009. This test was conducted at ¼″ thickness and in accordance to the current ASTM standards for Air Permeance Properties for building components. The evaluation was for one (1) specimen which was sealed within an air leakage test chamber.
  • Testing background and experimental protocols included the following: Specimens were sealed within the air leakage chamber. Air was exhausted from the chamber at rates required to maintain test pressure differences of 25, 50, 75, 100, 150, 250 and 300 Pa. The air leakage through the specimens were measured at each successive pressure difference and monitored for any physical changes. The air leakage of the specimens was then re-measured at pressure differentials of 100, 75, and 50 Pa, as required by the test procedure. Test results are indicated in Table 1 for air permeance properties.
  • TABLE 1
    Air Permeance Results in Accordance with ASTM E2178-03
    Average Average
    Differential Calculated Air Calculated Air
    Pressure Flow Flow
    Pa (lbs/ft2) L/(s m2) CFM/ft2 Thickness Note
     25 (0.52) 0.000329 0.00007 6.8 mm SI units
     50 (1.05) 0.000503 0.00010 are the
     75 (1.57) 0.000645 0.00013 primary units
    100 (2.09) 0.000769 0.00015 of measure
    150 (3.14) 0.000986 0.00020
    250 (5.23) 0.001348 0.00027
    300 (6.27) 0.001508 0.00030
    100 (2.09) 0.000843 0.00017
     75 (1.57) 0.000671 0.00013
     50 (1.05) 0.000487 0.00010
  • Conclusions from the testing include that the air barrier sealant met or exceeded the standard for air permeance for polyurethane foams and sealants as outlined by ABAA which is the Air Barrier Association of America, Inc.
  • Also, FIG. 1 is a graph showing data associated with test results of an air barrier sealant product according to one embodiment of the present invention. Importantly, the regression curve fitted to the results has an R2 value of 0.98689, indicating the non-deformable nature of the air barrier product with regard to changes in pressure.
  • Due to the success of this test and some other preliminary tests, the sealant of the present invention is indicated to be in conformance with the ABAA Spray Polyurethane Foam guidelines and to adhere to the test standards as established by the ABAA Process for Approval of Air Barrier Materials, Components and Assemblies JUNE 2007 Version 2.0 Draft (ABAA-10001-02). These test standards are shown in the following table, as applied to ¼″ thickness.
  • Product Test Requirements
    Property Standard Test Standard Title Unit Min Max
    Air ASTM Standard Test Method for Air L/(s · m2) — 0.02 -
    Permeance E2178 Permeance of Building tested in
    Materials both
    directions
    Flame Spread ASTM Standard Test Method for — — 50
    Characteristics E84-05 Surface Burning
    Characteristics of
    Building Materials
    Water Vapor ASTM Standard Test Methods for ng/(Pa · s · m2) Declaration —
    Transmission E-96- Water Vapor Transition of of
    00e1 Materials - Water Method thickness at
    which
    material
    meets 1
    perm
    Thermal ASTM Standard Test Method for m2 · ° C./W 2.0 —
    Transmission E-177- Steady-State Heat Flux
    04 Measurements and Thermal
    Transmission Properties by
    Means of the Guarded-Hot-
    Plate Apparatus
    Compressive ASTM Standard test method for kPa 170 —
    Strength D-1621- Compressive Properties of
    04a Rigid
    Cellular Plastics
    Density ASTM Standard Test Method for kg/m3 28 —
    D-1622- Apparent Density of Rigid
    03 Cellular
    Plastics
    Tensile ASTM Standard Test Method for kPa 200 —
    Strength D-1623- tensile and Tensile Adhesive
    03 Properties of Rigid Cellular
    Plastics
    Dimensional ASTM Standard Test Method for % — −1
    Stability D-2126- response of Rigid Cellular — +8
    04 Plastics — +14 
    to Thermal and humid Aging
    −20° C.
    80° C.
    70° C., 97% ± 3% R.H.
    Water ASTM Standard test method for % —  4
    Absorption D-2842- Water Absorption of Rigid
    01 Cellular
    Plastics
    Open Cell ASTM Standard test Method for % —  8
    Content D-2856- Open-Cell Content of Rigid
    94 Cellular
    Plastics by the Air
    Pycnometer
    Pull Adhesion ASTM Standard Test Method for kPa 110 or —
    D-4541- Pull-Off Strength of Coatings report
    02 Using force at
    Portable Adhesion testers cohesion
    failure
  • The test results shown above in tables 1 and 2 were performed on a ¼″ barrier. Because thicker barriers would provide at least these properties, the present invention provides for sealants with a range of between about ¼″ and about 1″ with at least the same properties. Preferably, the barriers include a range of between about ¼″ to about 3/16″ between about ¼″ to about ⅜″, between about ¼″ to about ½″, between about ¼″ to about ⅔″between about ¼″ to about ⅝″, between about ¼″ to about ¾″, and between about ¼″ to about ⅞″.
  • Additionally, in one embodiment of the invention, the barrier has a strength of 367.80 psi. In another embodiment of the invention, the barrier has an adhesion of 367.80 psi. In yet another embodiment, the strength of the barrier is equal to the strength of the underlying substrate. For example, if the barrier is applied to concrete, the strength of the barrier is equal to the strength of the concrete.
  • Certain modifications and improvements will occur to those skilled in the art upon a reading of the foregoing description. The above-mentioned examples are provided to serve the purpose of clarifying the aspects of the invention and it will be apparent to one skilled in the art that they do not serve to limit the scope of the invention. All modifications and improvements have been deleted herein for the sake of conciseness and readability but are properly within the scope of the present invention.

Claims (20)

What is claimed is:
1. An air barrier sealant comprising:
a polyurethane material;
wherein the air barrier sealant has a top exposed surface that is spaced apart from a bottom surface by a thickness;
wherein the bottom surface substantially covers a surface of an object by the bottom surface adhering to the object surface;
wherein the air barrier sealant has a tensile strength of not less than about 200 kPa.
2. The air barrier sealant of claim 1, wherein the polyurethane material is a closed cell polyurethane material.
3. The air barrier sealant of claim 1, further comprising a second material with a colorant.
4. The air barrier sealant of claim 1, wherein the object is a piece of ductwork, the piece of ductwork comprising an air duct boot, a wall cap, and/or a roof cap.
5. The air barrier sealant of claim 4, wherein the piece of ductwork is substantially rectangular.
6. The air barrier sealant of claim 4, wherein the piece of ductwork is substantially circular.
7. The air barrier sealant of claim 1, wherein the air barrier sealant is a dual component formulation.
8. An air barrier sealant comprising:
a polyurethane material;
wherein the air barrier sealant has a top exposed surface that is spaced apart from a bottom surface by a thickness;
wherein the bottom surface substantially covers a surface of a substrate by the bottom surface adhering to the substrate;
wherein the air barrier has a tensile strength equal to a tensile strength of the substrate.
9. The air barrier sealant of claim 8, wherein the air barrier sealant has a pull adhesion of not less than about 110 kPa.
10. The air barrier sealant of claim 8, wherein the polyurethane material is a closed cell polyurethane material having no more than 8% open cells.
11. The air barrier sealant of claim 8, wherein the second material includes a colorant.
12. The air barrier sealant of claim 8, wherein the air barrier sealant is a dual component formulation.
13. A method for providing an air barrier sealant comprising:
providing a polyurethane material in a first container;
providing a material with suspended UV, fire and/or antimicrobial protectants in a second container;
mixing an amount of the polyurethane material from the first container and an amount of the material with suspended UV, fire, and/or antimicrobial protectants from the second container to create a mixture;
applying the mixture to a substrate surface;
the mixture expanding from the substrate surface to produce a substantially uniform thickness;
thereby creating an air barrier on the substrate surface.
14. The method of claim 13, wherein the polyurethane material in the first container is under a pressure of about 1500 psi.
15. The method of claim 13, wherein the polyurethane material in the first container is maintained at a temperature between about 130 degrees Fahrenheit to about 150 degrees Fahrenheit.
16. The method of claim 13, wherein the substantially uniform thickness is not more than about 1 inch.
17. The method of claim 13, wherein mixing the amount of the polyurethane material from the first container and the amount of the material with suspended UV, fire, and/or antimicrobial protectants from the second container to create the mixture is performed in air by spraying the amount of the polyurethane material from the first container and spraying the amount of the material with suspended UV, fire, and/or antimicrobial protectants from the second container, wherein the amount of the polyurethane material and the amount of the material with suspended UV, fire, and/or antimicrobial protectants mix in the air.
18. The method of claim 13, wherein a tensile strength of the air barrier on the substrate surface is not less than about 200 kPa.
19. The method of claim 13, wherein a tensile strength of the air barrier on the substrate surface is at least equivalent to a tensile strength of the substrate.
20. The method of claim 13, wherein the material with suspended UV, fire and/or antimicrobial protectants includes a colorant.
US15/198,025 2009-09-30 2016-06-30 Protective Air Barrier Sealant for Conditioned and Unconditioned Building Walls Abandoned US20160305685A1 (en)

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US12/569,937 US20110077316A1 (en) 2009-09-30 2009-09-30 Biosealant Protective Barrier for Surfaces
US12/785,900 US9068088B2 (en) 2009-09-30 2010-05-24 Protective air barrier sealant for conditioned and unconditioned building walls
US14/741,746 US9382704B2 (en) 2009-09-30 2015-06-17 Protective air barrier sealant for conditioned and unconditioned building walls
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Citations (1)

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Publication number Priority date Publication date Assignee Title
US20090082477A1 (en) * 2006-12-29 2009-03-26 Rubberlite Incorporated Cellular elastomer compositions

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090082477A1 (en) * 2006-12-29 2009-03-26 Rubberlite Incorporated Cellular elastomer compositions

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