EP2057215A2 - Compositions and methods for the protection of substrates from heat flux and fire - Google Patents
Compositions and methods for the protection of substrates from heat flux and fireInfo
- Publication number
- EP2057215A2 EP2057215A2 EP07840637A EP07840637A EP2057215A2 EP 2057215 A2 EP2057215 A2 EP 2057215A2 EP 07840637 A EP07840637 A EP 07840637A EP 07840637 A EP07840637 A EP 07840637A EP 2057215 A2 EP2057215 A2 EP 2057215A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- fiberglass
- composition
- article
- silicone
- flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
- B32B17/04—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments bonded with or embedded in a plastic substance
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/08—Heat resistant; Fire retardant
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/14—Explosion or fire protection arrangements on packages or ammunition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
- F42B39/14—Explosion or fire protection arrangements on packages or ammunition
- F42B39/18—Heat shields; Thermal insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
-
- 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
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
Definitions
- Thermal barrier coatings insulate and protect a substrate from prolonged or excessive heat flux and enable the substrate material to retain its mechanical property integrity during service. Selection of the type of system and its components depends upon the application. Heat may be dissipated away from a substrate by several methods, including heat sinks, active cooling, transpiration cooling, radiation cooling, and intumescence.
- the present invention is directed to a flame or heat flux protective coating composition, which includes a fiberglass dispersion in silicone. Also presented is a flame or heat flux protective sheet, which includes fiberglass and silicone in a sheet form, wherein the fiberglass is dispersed in the silicone or the fiberglass is a woven cloth coated with the silicone.
- a method for coating an article with a flame or heat flux protective coating and articles incorporating the flame or heat flux protective coating or sheet form are also presented.
- FIG. 1 is a table setting forth descriptions of the tested coatings
- FIG. 2 is a graph of temperature versus time for the flame test
- FIG. 3 is a graph depicting average flame test results.
- the fiberglass component imparts high emissivity to the composition of the present invention.
- Emissivity is a material's ability to absorb and radiate energy as a function of its temperature and is defined herein as the ratio of the total energy radiated by a material to a black body at the same temperature.
- a black body absorbs all electromagnetic radiation and is an ideal radiator with an emissivity of 1.
- the emissivities of all non-black body objects are less than one and are determined by the object's temperature, surface characteristics, geometric shape and size, and chemical composition. In order to dissipate heat, high emissivity values close to one are desirable.
- the emissivity of fiberglass ranges from 0.87-0.95. Fiberglass also provides the coating composition with relatively low heat conductivity and, thus, a high thermal insulation value.
- one end of a strand of fiberglass is able to radiate heat away from a coated substrate when subjected to high temperatures, while the other end of the same strand insulates the substrate from the radiated heat.
- the fiberglass component is present in an amount suitable to promote effective radiation cooling when exposed to heat.
- the fiberglass component is present in an amount from about 4% to about 14% by weight of the composition.
- the amount of fiberglass is from about 8% to about 14% by weight of the composition, more preferably from about 8% to about 12% by weight of the composition.
- the fiberglass component can have any suitable fiber length and diameter.
- the fiberglass component can also include fibers having a mixture of suitable lengths and diameters.
- the fiber length ranges from about lmm to about 20mm.
- a preferred fiber diameter ranges from about 6 ⁇ m to about 19 ⁇ m.
- at least a portion of sizing material is removed from the fiberglass component prior to combining with the silicone component.
- the silicone component provides the coating with mechanical flexibility and thermal stability over a broad temperature range (e.g. -110 - 400 0 F). Additionally, the decomposition of the silicone component at high temperatures (e.g. greater than 400 0 F) into silicon dioxide and silicon oxide absorbs a large amount of energy from the heat source. Furthermore, as a result of silicone degradation, large surface areas of fiberglass are exposed. The matted network of exposed fiberglass increases the coating's degree of radiative cooling and serves as insulation by remaining grounded in the cooler under layers of silicone near the protected substrate surface.
- the silicone component includes dimethylsiloxane and polydimethylsiloxane.
- Another aspect of the current invention includes a method for applying a flame or heat flux protective coating composition to at least a portion of an article, wherein the composition includes a fiberglass dispersion in silicone.
- the coating is applied by brushing onto a substrate.
- the coating is applied by dipping a substrate into the coating composition.
- an even layer is not critical but the coating should be thick enough to obstruct vision of the underlying surface.
- Another aspect of the current invention includes an article, wherein at least a portion is coated with a composition, which includes a fiberglass dispersion in silicone.
- Suitable substrates for the coated article include, for example, thermoplastics, thermoplastic composites, polyethylene, wood, stone, metal (e.g.
- U.S. Patent Nos. 6,191,228, 5,951,940, 5,916,932, 5,789,477, and 5,298,214 disclose structural recycled plastic lumber composites made from post-consumer and post-industrial plastics, in which polyolefins are blended with polystyrene or a thermoplastic coated fiber material such as fiberglass. The disclosures of all five patents are incorporated herein by reference.
- the coated article can have any shape or form, for example, a round cross- section, a rectangular cross-section, an hourglass cross-section, a sheet form, or a combination thereof.
- Exemplary forms for plastic composites are disclosed in U.S. Application No. 60/486,205 filed July 8, 2003, U.S. Application No. 60/683,115 filed Mayl9, 2005, U.S. Application No. 10/563,883 filed January 9, 2006, and International Application No. PCT/US06/19311 filed May 19, 2006. The disclosures of all of which are incorporated herein by reference.
- the article is an L-Beam, I-Beam, a C-Beam, a T-Beam, or a combination thereof.
- Exemplary articles suitable for coating with the composition of the present invention include, but are not limited to, steel ammunition boxes, railroad ties, plastic piping, lumber, sheet piling, boat hulls, pick-up truck beds, gasoline canisters, fuel tanks in automobiles, airplanes, ships, and submarines, areas near high temperature operating components, such as ignition champers, infrastructure, for example, building support structures and cables in suspension bridges, high-pressure storage tanks, and the like.
- composition of the present invention can also be incorporated into a sheet form.
- the silicone and fiberglass components can be combined in an extruder and extruded into a sheet die.
- a woven fiberglass cloth is coated with the silicone component.
- Exemplary applications for the sheet forms of the present invention include, but are not limited to, fabrics, for example, fire protective clothing and blankets, and sheets applied to any of the articles mentioned above as being suitable for coating with the composition of the present invention.
- fabrics for example, fire protective clothing and blankets
- sheets applied to any of the articles mentioned above as being suitable for coating with the composition of the present invention.
- Example 1 Sample preparation Blends of 4, 6, 8, 10, 12, and 14 % by weight fiberglass in silicone, with trace amounts of silicone oil, were prepared. The components were blended in a mixer and applied to a steel coupon with a putty knife targeting a thickness of 1.6 mm or less. The fiberglass/silicone coatings were compared against seven commercial products (FIG. 1) in a low temperature flexural test and a direct high temperature flame test. The coatings were applied to standard 76 by 152 by 0.735 mm steel coupons. Three specimens per sample, or coating type, were tested for both experiments.
- Coated steel plates were annealed in dry ice, approximately -79 0 C, for at least 15 minutes followed by bending around a 0.64 cm mandrel to an angle of 180°. During the test, photographs were taken of each specimen at 30°, 90°, and 180° of bending. Visual observation provided information about a coating's response to thermal shock when bonded to a steel substrate and indicated the type and severity of surface damage incurred due to bending at low temperatures. A successful coating did not have surface damage after testing. During bending, the coating stretches to accommodate the substrate's new, larger surface area. The surface of the coating is in tension and receives the highest percent strain during bending. Thus, crack formation is initiated at the coating surface.
- Failure of the coating is indicated by crack development and propagation in the coating and delamination. Common modes of failure included tiny crack formation parallel to the bending axis in the deformation region, large cracks that caused pieces of the coating to detach and expose the substrate, and some brittle failure. In some cases, the coating delaminated as well. These types of surface failure indicate a coating with low strain to failure at low temperatures that will detach or delaminate, expose the substrate, and create a point source of radiative heat. As indicated in FIG. 1, Products A, B, C, D, E, and G failed the low temperature flexural test due to crack formation.
- a flame produced by a propane torch was applied normal to the coated side of a specimen.
- An IR sensor (Omega OS550 Series Infrared Industrial Pyrometer) was aligned on the same axis as the flame and measured temperature as a function of time on the back side of the vertical steel coupon.
- the inner cone length of the flame was adjusted to 3.175 cm, and the tip of the inner cone, the hottest part of the flame, was positioned directly on the sample's surface 2.54 cm above the bottom edge and at the center across the sample width. This configuration delivered worst case scenario results for high temperature direct point heating.
- the adiabatic flame temperature of propane in air is approximately 1,927 0 C +/- 38°C.
- the flame was applied for a total duration of ten minutes.
- a coating is considered to fail the flame test if the maximum temperature detected by the IR sensor exceeds 316 0 C. The maximum temperature reached for each coating was compared against the control specimen, an uncoated steel plate, as a point of reference.
- the flame test results are presented graphically in FIGS. 2 and 3.
- the average temperature versus time data collected during the flame test for each sample is presented in FIG. 2, and the average maximum temperature and standard deviation per sample in FIG. 3.
- the 12 % fiberglass/silicone coating maintained the lowest maximum temperature of all of the coatings.
- the black horizontal line signifies the pass/fail temperature limit of 316 0 C and delineates the coatings that passed the flame test from those that did not (e.g. coatings with a maximum temperature below the line pass, while those above the line fail). Coatings with a maximum temperature below the limit were Products D and E and the fiberglass/silicone composite coatings (excluding the 6 % fiberglass composition) (FIG. 1).
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83469606P | 2006-08-01 | 2006-08-01 | |
PCT/US2007/074974 WO2008016975A2 (en) | 2006-08-01 | 2007-08-01 | Compositions and methods for the protection of substrates from heat flux and fire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2057215A2 true EP2057215A2 (en) | 2009-05-13 |
EP2057215A4 EP2057215A4 (en) | 2013-01-23 |
Family
ID=38997838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07840637A Withdrawn EP2057215A4 (en) | 2006-08-01 | 2007-08-01 | Compositions and methods for the protection of substrates from heat flux and fire |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2057215A4 (en) |
KR (1) | KR20090075661A (en) |
CN (1) | CN101535389A (en) |
BR (1) | BRPI0714821A2 (en) |
CA (1) | CA2659378A1 (en) |
IL (1) | IL196819A0 (en) |
MX (1) | MX2009001173A (en) |
RU (1) | RU2009107034A (en) |
WO (1) | WO2008016975A2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11512208B2 (en) | 2006-08-01 | 2022-11-29 | Rutgers, The State University Of New Jersey | Compositions and methods for the protection of substrates from heat flux and fire |
US7955996B2 (en) | 2006-08-01 | 2011-06-07 | Rutgers, The State University Of New Jersey | Compositions and methods for the protection of substrates from heat flux and fire |
US9609857B2 (en) | 2012-08-09 | 2017-04-04 | Todd Nugent | Device and method for pest control |
CA2932825A1 (en) | 2013-12-10 | 2015-06-18 | General Cable Technologies Corporation | Thermally conductive compositions and cables thereof |
GB201709560D0 (en) * | 2017-06-15 | 2017-08-02 | Advanced Insulation Plc | Structure and method for bonding together low energy dissimilar material |
US11939265B2 (en) | 2018-03-13 | 2024-03-26 | Lydall Performance Materials (Us), Inc. | High temperature thermo-acoustic barrier material with low smoke and odor |
CA3094813C (en) * | 2018-03-20 | 2023-03-14 | Lydall Performance Materials (Us), Inc. | High temperature thermo-acoustic barrier with low smoke and odor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5130184A (en) * | 1984-04-25 | 1992-07-14 | Pyrotite Corporation | Fire barrier coating and fire barrier plywood |
US6034155A (en) * | 1998-03-16 | 2000-03-07 | Ect Incorporated | Polymer concrete compositions, structures made therefrom and methods of manufacture |
CA2429226C (en) * | 2000-11-17 | 2011-06-07 | Peter Clifford Hodgson | Coupling of reinforcing fibres to resins in curable composites |
US20060025510A1 (en) * | 2004-08-02 | 2006-02-02 | Dean David M | Flame retardant polymer blend and articles thereof |
-
2007
- 2007-08-01 MX MX2009001173A patent/MX2009001173A/en active IP Right Grant
- 2007-08-01 RU RU2009107034/05A patent/RU2009107034A/en not_active Application Discontinuation
- 2007-08-01 WO PCT/US2007/074974 patent/WO2008016975A2/en active Application Filing
- 2007-08-01 CN CNA2007800346243A patent/CN101535389A/en active Pending
- 2007-08-01 KR KR1020097004149A patent/KR20090075661A/en not_active Application Discontinuation
- 2007-08-01 EP EP07840637A patent/EP2057215A4/en not_active Withdrawn
- 2007-08-01 CA CA002659378A patent/CA2659378A1/en not_active Abandoned
- 2007-08-01 BR BRPI0714821-6A patent/BRPI0714821A2/en not_active Application Discontinuation
-
2009
- 2009-02-01 IL IL196819A patent/IL196819A0/en unknown
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO2008016975A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2008016975A2 (en) | 2008-02-07 |
IL196819A0 (en) | 2009-11-18 |
WO2008016975A3 (en) | 2008-03-20 |
CN101535389A (en) | 2009-09-16 |
BRPI0714821A2 (en) | 2013-05-21 |
CA2659378A1 (en) | 2008-02-07 |
MX2009001173A (en) | 2009-04-23 |
EP2057215A4 (en) | 2013-01-23 |
KR20090075661A (en) | 2009-07-08 |
RU2009107034A (en) | 2010-09-10 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20090225 |
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AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR |
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AX | Request for extension of the european patent |
Extension state: AL BA HR MK RS |
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DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20121221 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C08K 7/14 20060101ALI20121217BHEP Ipc: C08K 3/22 20060101AFI20121217BHEP |
|
17Q | First examination report despatched |
Effective date: 20180412 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20180724 |