US3248257A - Flame-resistant mineral fiber tile - Google Patents

Flame-resistant mineral fiber tile Download PDF

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Publication number
US3248257A
US3248257A US64622A US6462260A US3248257A US 3248257 A US3248257 A US 3248257A US 64622 A US64622 A US 64622A US 6462260 A US6462260 A US 6462260A US 3248257 A US3248257 A US 3248257A
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United States
Prior art keywords
tile
fibers
flame
sodium aluminate
mineral
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Expired - Lifetime
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US64622A
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English (en)
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John E Cadotte
Edward W Juntti
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WOODS CONVERSION Co
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WOODS CONVERSION Co
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Priority to US64622A priority Critical patent/US3248257A/en
Priority to GB14013/61A priority patent/GB942220A/en
Priority to SE6437/61A priority patent/SE310145B/xx
Application granted granted Critical
Publication of US3248257A publication Critical patent/US3248257A/en
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    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic 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
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y10S428/921—Fire or flameproofing
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/50—FELT FABRIC

Definitions

  • the present invention relates to mineral fiber ceiling tile panels, particularly adapted to remain in mounted position and there to function as fire-stops.
  • Mineral fiber tile such as squares and other forms of panel, commonly'contain a small percentage of combustible content, for example, vegetable fibers for imparting certain physical properties, and organic binder, such as resin or starch, to hold the fibers in bonded relation at a density in the range from l2-to 75 pounds per cu. ft.
  • the combustible content can be regulated so that on exposure of the body to a very hot flame, such as at 2,000 F., the organic content is burned away, and the mineral content remains in panel form without disintegrating or crumbling, although there is shrinkage in the lanar direction of the tile.
  • a very hot flame such as at 2,000 F.
  • the organic content is burned away, and the mineral content remains in panel form without disintegrating or crumbling, although there is shrinkage in the lanar direction of the tile.
  • there is a resulting sagging of the panel when mounted at opposite edges, when the panel lacks some special processing in manufacture or some special treatment after manufacture tending to stabilize the tile and
  • the present invention relates to such processing and treatment, and it is, therefore, an object of the invention to provide a mineral fiber tile which may be suspended from opposite edges in a manner to provide a satisfactory fire-stop when exposed to the flames of a configuration within the quarters for which the tile provides a ceiling.
  • Such ceilings commonly'have a plenum chamber above the tile. By preventing the tile from dropping, i.e., by minimizing its deformation when exposed to flame, the ceiling continues to provide a fire-stop limiting temperature rise in the plenum chamber, thereby protecting the building structure beyond the plenum chamber from contact by the flame.
  • So-called fire-retardant and fire-resistant tiles have such properties in varying degrees.
  • Governmental and insurance regulations cutomarily set standards to be met commercially, and specify test procedures, so that tiles are rated according to their response to a test, for example, according to the lengths of time which they remain in place.
  • the present invention involves the application of fibercoating material to mineral fibers of a mineral fiber tile, to oppose the tendency of the tile to deform on exposure to flame.
  • the resulting tile or panel meets a certain test permitting use of the tile when meeting one or more tests I is a prerequisite to use.
  • the invention involves the use of liquid containing chemical means, preferably aqueous suspensions, or solutions, or both, to be applied to the mineral fibers and to provide dry material on the surfaces of dry fibers which is a refractory deposit on the fiber surfaces, thus to stiffen them and to resist the normal tendency to flex when highly heated.
  • the material to be applied may be so incorporated that fibers throughout the body are so coated with refractory material, but this method with some materials olfers difliculties.
  • Mineral tile or panel is commonly mounted at opposite edges by suspension from metal runners in such a way that the metal is hidden from view and protected from exposure to flame by a flange portion of the tile.
  • the metal is more sensitive to heat than the mineral fiber body, and one objective in mounting is to protect the metal from exposure to direct heat of a flame.
  • the edge-mounted mineral body sags to an excessive extent, it may expose the metal runners to flame or direct heat of a flame, according to the design of the joint, which runners then warp or bend, resultingly permitting the body to drop or to be dislocated so that an opening in the tile ceiling is produced.
  • a tile may remain integral on long exposure to heat or flame, it is the mounting of it that also must resist the heat and flame so that the tile remains mounted and its mounting means withstands the heat sufficiently to prevent dropping of the tile and prevent formation of an opening through the tile ceiling.
  • the normal tendency of the tile to deform when exposed to flame is decreased.
  • the amount to be used and the manner and place of applying it predetermines the extent to which the tendency to deform is minimized.
  • the composition of the tile itself and its density are influencing factors, making it a matter of empirical experimentation for a particular composition of file, to determine how much of the chemical means is required for any selected method of application, to meet some specified test. It is, therefore, to be understood that the invention broadly contemplates the application of chemical means to fibers of a mineral fiber tile, without limiting the invention to meet any particular test, or to provide any particular degree of the desired effect.
  • the invention is illustrated by reference to one set of conditions, including tile composition, method of mounting and a prescribed test, and with variations in the method of application.
  • FIG. 1 is a view of a suspended tile ceiling looking at the back faces of tile squares mounted on parallel metal runners.
  • FIG. 2' is an enlarged broken edge View of a tile taken on line 22 of FIG. 1.
  • FIG. 3 is a view showing the tile of FIG. 2 joined with two similar tiles, all mounted on parallel metal runners shown in cross-section on the line 22 of FIG. 1.
  • FIG. 4 is a view of one of the joints of FIG. 3 showing the manner in which the tiles pull away from the runners as a result of sagging.
  • FIG. 5 is an enlarged fragmentary view of a tile partly in cross-section, wherein the stippling indicates the presence of sodium aluminate.
  • the tiles are illustrated by conventional 12-inch squares, without intent to limit the shape or size to the illustrated for-m.
  • the invention applies to larger tiles, such as 2 X 4 feet similarly mounted.
  • Suspended ceilings of such tile commonly have a plenum chamber above them and under a floor or roof above the tile in which space service equipment may be housed.
  • the tile ceiling should confine flames to the space below it, at least for some predetermined required period of time.
  • the numerals designate parallel metal runners to which the tiles are mounted in a manner to protect the runners by at least a portion of the thickness of the tile.
  • the runners 10 are suspended by means not shown which form no partof the present invention.
  • One way to mount the tile to the runners 10 is to provide the runner with two lower flanges 11 and 12, in a T-formation with a vertical web 13, and to provide kerfs or grooves in side edges of tile to receive flanges.
  • the tiles have interfitting tongue and groove structures in the two pairs of opposite edges, and these are constructed to provide continued protection to the metal flanges.
  • a joint may open by limited sagging of tiles.
  • a tile 15 is indicated as having a tongue 16 entering a groove in like adjacent tile 17, which groove duplicates groove 18 in tile 15, said groove 18 receiving a tongue of tile 19.
  • the remaning tongue and groove of tile 15 for mounting on the runners 10 are shown in FIGS. 2 and 3.
  • a tongue 20 extends to the right in FIG. 2, being about /3 as thick as the tile which is approximately %-inch thick.
  • the upper face 21 of the tongue extends into the body of the tile as a kerf 22, which kerf receives a flange 11 of a runner 10.
  • the tile edge-face 23 above the tongue 20 is inwardly of the tile edge-face 24 below the tongue 20.
  • the opposite grooved edge of tile 15 has a groove 26 in the central third of its thickness to receive a tongue 20 of another tile, thus forming two encompassing flanges 27 and 28.
  • FIG. 3 shows tile 15 suspended on runners 10 alongside two similar tiles 15 and 15 of which the parts corresponding to the parts in tile 15 are similarly designated.
  • tile flange 27 rests on runner flange 12 and forms a space 30 between it and the end of the opposite flange 23 for the web 13 of runner 10.
  • the runner flange 11 fits into kerf 22.
  • FIG. 4 shows the normal joint of FIG. 3 opened up to a degree, which happens when the tiles sag.
  • the runner flanges 11 and 12 are protected by about two-thirds of the thickness of the tiles.
  • the extreme edge portion of runner flange 12 loses some of this protection from the heat and flame which has caused the tiles to sag.
  • the extent to which the joint may open before exposing the runner or dropping a tile is controlled by designing dimensions. To lengthen the tongue and groove to protect the runner results in weakening the tile at the joint and in likelihood of damage to a tile unit in handling.
  • the present invention limits the opening of a joint during exposure to flame by minimizing the tendency of a tile to deform and thus prevent that degree of deformation which could drop the tile or open a joint.
  • the treated fibers in their assembled relation in the tile form a rigidifying backing for the tile which stiffens it and lessens the degree of deformation.
  • the entire back must be treated including especially the regions of the tile flanges which overlie the runner flanges 11 and 12. Otherwise, the tile flanges'ltend early to break and let the tile drop.
  • Phoephate salts are suitable, such as sodium tripolyphosphate, and other chemical means, such as sodium chloride, sodium sulfate, ferric sulfate, ferric chloride, zinc hydroxide, zinc chloride, zinc oxychloride, mixtures of zinc chloride and zinc oxychloride, aluminum sulfate, sodium silicates, calcium aluminate, sodium aluminate, and magnesium sulfate.
  • the character of the mineral fiber is important when selecting the chemical means for the processing of the present invention.
  • the fibers are reactive, as when they are alkaline, or contain sulfides, as does mineral fiber made from slag, the refractory material can be formed as a result of reaction of the ap' plied chemical means with the fiber. Glass fibers are much less reactive to the chemical means, and in fact, practically inert in the process of producing the treated tile. To what extent there may be reaction at red heat is not material to this description.
  • zinc chloride When zinc chloride is used, it is more effective when up to one-half mole of caustic soda per mole of zinc chloride is used with it, thus forming zinc oxychloride (ZnOHCl) in whole or in part. Because of the reaction to form zinc oxychloride, a mixture of zinc chloride and of caustic soda is the preferred chemical means for addition to the slurry. The resulting zinc oxychloride adheres to the fibers and is not lost when felting on a Fourdrinier machine. A small amount of a coagulant such as polycrylamide assists the coating of the fibers by the zinc oxychloride by flocculation.
  • a coagulant such as polycrylamide assists the coating of the fibers by the zinc oxychloride by flocculation.
  • Sodium aluminate is the preferred agent for surface treatment, being alakline and, therefore non-reactive with glass fibers and slag wool.
  • the preferred tile board is made to include the zinc oxychloride and the finished board is treated to back the tile with sodium aluminate.
  • the mineral content of the fibers is characterized by a melting point below a red heat at which an untreated tile sags, the fibers do not melt, and they retain a felted relation holding the tile body together even though the organic content has burned away.
  • the fibers which before the heating were processed to have a refractory deposit thereon exhibit less shrinkage and exhibit the coating material variously covering or spotted over the surfaces of fibers.
  • the mineral fiber tile is one formed at a thermal insulating density suitable for adequate strength for the tile for commercial handling and for sustaining itself when mounted at its edges.
  • the mineral fibers may be glass fibers or the various forms of mineral wool or slag wool.
  • a suitable tile is made by felting an aqueous slurry of a slag wool, cellulosic fibers, asbestos fibers and starch grains, on a Fourdrinier machine, draining water from the mat, pressing to a density for drying to aboard of 12 to 30 pounds per cu. ft., heating the pressed wet mat throughout to a temperature effecting gelatinization of the starch grains before drying the mat, and then drying the mat with the gelatinized starch providing the bond.
  • Such a board may be treated according to this invention after being so made. ticed by introducing the treating chemical into the process at numerous stages before the final drying.
  • the density to which the board is formed is related to the size of tile units to be made. For tile 12 x 12 x /6 inches a density in the range from 22 to 25 pounds per cu. ft., is preferred.
  • Wax-size suspension (aqueous).
  • composition of Table III may be used.
  • a board of 23 /2 pounds per cu. ft. is formed as described. Then, the dry board in the form of cut tile units is coated over the entire back of the tile with sodium aluminate composition of Table IV,.at the usage of 17 pounds of solids per M sq. ft.
  • Sodium aluminate has been found so far to be the most effective material for application to the back of a mineral fiber tile. It melts at 1650 C. or 3000 R, which is well above the temperature to which the back of the tile is exposed. It is soluble in water to a limited extent. There are numerous ways to locate sodium aluminate throughout the tile or at and adjacent the back face of the tile. It may be applied as such, or may be formed in situ. It may be sifted into the surface as a powder, or applied as a paste or suspension, either aqueous or nonaqueous. It is preferably used in an aqueous solution containing an excess of undissolved finely divided sodium aluminate.
  • the invention may be pracpresence of undissolved particles and a thickening agent, such as methyl cellulose, starch paste or the like.
  • the thickening agent functions additionally to keep the undissolved content of sodium aluminate in suspension.
  • Various methods of application require viscosity control for particular apparatus, or operation, or panel material, and varying the thickening agent is one way to control viscosity.
  • the composition may be applied entirely to the wet pressed mat before drying to form the final mineral fiberboard. Before pressing it may be so applied as to be present throughout the wet mat, with some loss on pressing. After pressing it may be more limited to a wet face. It may all be applied to the back of the finished board after drying. It may be applied one part to the wet mat in process and the remaining part to the dry board.
  • the density of the tile also alters the effective quantity.
  • a usage of 20 pounds is adequate, but applied to the wet mat to be dried to form said board, the usage may vary from 7 to 33 pounds.
  • it is applied in two stages, for example at the rate of 7 pounds to the wet pressed mat, which is then dried, then at the rate of 15 to 20 pounds and again dried.
  • a tile meeting the American Society of Testing Materials Test E119-55 is made from the composition in Table II, having a density of 20 pounds per cu. ft., and a thickness in the range from /2 to %-inch.
  • One face of the wet pressed mat to be dried is treated with the composition of Table IV to apply 15 pounds of sodium aluminate per M sq. ft. Then, the mat is dried and to the same face when dry is applied the same composition in quantity to apply 10 pounds of sodium aluminate per M sq. ft. Then, the wet treated face is dried, by passing through an oven or under radiant lamps.
  • the applied composition more easily penetrates the wet mat, so the first application carries the agent slightly inward from the surface and the second application confines it largely over the surface.
  • FIG. 5 shows a tile 31 having fibers at its back surface coated with sodium aluminate as indicated at 32, and
  • a control tile of 18 pounds per cu. ft. was formed in the conventional manner.
  • a test piece thereof 3 x 8 inches was exposed to a flame at 2000 F. on test supports, and it sagged and dropped in 4 to 5 minutes.
  • test tile remained in place for minutes with a maximum deflection of 9 /2 mm.
  • Sodium zincate is effective when used like sodium aluminate, as described above. Usage of 10 to pounds of sodium zincate on the back of a tile, decreased the sag in a laboratory test in 15 minutes from 12 to 13 mm. for a control tile to 7.5 to 9 mm., for the treated tile.
  • the invention is not limited to mineral fiberboard made by draining an aqueous slurry. It may be practiced in air-laying felts to be compressed to tile-density.
  • the dry fibers are discharged into a gravity settling chamber in any well-known manner, and the binder and chemical means are discharged or sprayed into the falling fibers.
  • a mixture of 95 parts of slag wool, and 5 parts of sulfiite fibers is discharged for gravity felting.
  • an aqueous cooked starch dispersion to provide 8 parts of starch to the 100 parts of fiber.
  • the moist felt is compressed for drying to a board of 22.3 pounds per cu. ft. This provides a basic formula for a control tile X.
  • Tile Z was formed by adding to the control formula 4 parts of sodium aluminate, and compressing to form a board of 30.2 pounds per cu. ft.
  • Table VII gives the failure time in a laboratory firetest.
  • Flame-resistant mineral fiber tile comprising an integral fiber felt having sodium aluminate on mineral fibers at a face thereof.
  • Flame-resistant mineral fiber tile comprising an integral fiber felt having sodium aluminate on mineral fibers at a face thereof and on mineral fibers adjacent said face inwardly therefrom.
  • Flame-resistant mineral fiber tile comprising an integral fiber felt having sodium aluminate on mineral fibers throughout the body thereof.
  • Flame-resistant mineral fiber tile comprising an integral fiber felt having sodium aluminate on mineral fibers including fibers at and adjacent the back of the tile, which sodium aluminate at red heat provides refractory coating on said fibers thereby opposing the tendency of the soheated tile to sag.
  • tile according to claim 4 in which throughout the body of the tile is distributed the insoluble reaction product resulting from use of zinc chloride and caustic soda in the the proportion of two moles of zinc chloride and one mole of caustic soda.
  • Tile according to claim 4 having zinc oxychloride throughout the body of the tile and sodium aluminate at and adjacent the fibers at the back of the tile.
  • Flame-resistant mineral fiber tile comprising an integral fiber tile having chemical means for forming a refractory coating on mineral fibers, said means consisting of sodium aluminate located at a face layer of the tile.
  • a tile according to claim 9 in which the said face is the back of the tile in the position in which it is to be mounted in a ceiling.
  • Flame-resistant mineral fiber tile comprising an integral fiber tile having chemical means for forming a refractory coating on mineral fibers, said means consisting of sodium aluminate located throughout the tile.
  • Flame-resistant mineral fiber tile comprising an integral fiber tile having chemical means for forming a refractory coating on mineral fibers, said means consisting of zinc oxychloride located throughout the tile and of sodium aluminate at a face of the tile.

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  • Ceramic Engineering (AREA)
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US64622A 1960-10-24 1960-10-24 Flame-resistant mineral fiber tile Expired - Lifetime US3248257A (en)

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US64622A US3248257A (en) 1960-10-24 1960-10-24 Flame-resistant mineral fiber tile
GB14013/61A GB942220A (en) 1960-10-24 1961-04-18 Flame-resistant mineral fiber tile
SE6437/61A SE310145B (enrdf_load_stackoverflow) 1960-10-24 1961-06-20

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US64622A US3248257A (en) 1960-10-24 1960-10-24 Flame-resistant mineral fiber tile

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GB (1) GB942220A (enrdf_load_stackoverflow)
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484340A (en) * 1965-06-04 1969-12-16 Trade & Ind Israel Fire-proofing of cellulosic material with a bonding agent containing bromides
US3619352A (en) * 1967-07-26 1971-11-09 Bowaters Paper Co Ltd Uk Flame retardant hardboard and its manufacture
US3969567A (en) * 1973-03-13 1976-07-13 Tac Construction Materials Ltd. Improvements in and relating to board products
US4086737A (en) * 1977-01-07 1978-05-02 Johns-Manville Corporation Refractory fiber blanket module with heat shrinkage compensation
US4145852A (en) * 1976-08-30 1979-03-27 Gerhard Hahn Construction element
US4170859A (en) * 1977-10-14 1979-10-16 James Counihan Composite structure and assembly joint for a floor system
US4266384A (en) * 1979-06-22 1981-05-12 United States Gypsum Company Fire resistant ceiling furring system
US4373992A (en) * 1981-03-31 1983-02-15 Tarkett Ab Non-asbestos flooring felt containing particulate inorganic filler, a mixture of fibers and a binder
US5042215A (en) * 1988-02-08 1991-08-27 Buchtal Gesellschaft Mit Beschrankter Haftung Natural stone element for lining facades of buildings
US6228497B1 (en) 1998-01-13 2001-05-08 Usg Interiors, Inc. High temperature resistant glass fiber composition and a method for making the same

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US1224145A (en) * 1915-06-04 1917-05-01 Whipp Bros & Tod Ltd Fireproofing and bleaching of fabrics and the like.
US1224204A (en) * 1914-07-31 1917-05-01 William Henry Perkin Treatment of cotton and cotton goods and other combustible substances to render them permanently less inflammable.
US1225414A (en) * 1915-02-06 1917-05-08 Thomas John Ireland Craig Fireproofing of fabrics and other articles.
US1397858A (en) * 1917-10-30 1921-11-22 Whipp Bros & Tod Ltd Fireproofing of textile fabrics and other porous articles
US1444051A (en) * 1919-04-22 1923-02-06 Allison Charles Ridgely Fire-resisting composition
US1860134A (en) * 1930-09-10 1932-05-24 Daniel Manson Sutherland Jr Fireproof fiber product
US2019852A (en) * 1934-04-27 1935-11-05 Turner & Newall Ltd Production of asbestos cement sheets, tiles, and the like
US2108761A (en) * 1936-03-28 1938-02-15 Homasote Company Fire resistant pulp board
US2125286A (en) * 1935-10-11 1938-08-02 Plastergon Wall Board Company Building construction
US2204336A (en) * 1937-08-12 1940-06-11 Earle O Whittier Fiber
US2264976A (en) * 1938-08-03 1941-12-02 Wood Conversion Co Thermal insulation
US2267913A (en) * 1938-05-11 1941-12-30 Johns Manville Fibrous article of manufacture and method of making the same
CH276057A (fr) * 1949-02-11 1951-06-30 Corte Mario Plafond suspendu à panneaux.
US2611694A (en) * 1947-06-27 1952-09-23 Homasote Company Inc Fire resistant sheet material
US2690393A (en) * 1950-06-24 1954-09-28 Armstrong Cork Co Method of producing fire-resistant insulation
US2901379A (en) * 1956-04-09 1959-08-25 Owens Corning Fiberglass Corp High temperature resistant vitreous material
US2909446A (en) * 1954-05-01 1959-10-20 Albright & Wilson Process of flameproofing cellulosic and proteinaceous materials and resulting product
US2944930A (en) * 1957-04-16 1960-07-12 Celotex Corp Fiberboard
US2949385A (en) * 1953-01-27 1960-08-16 Monsanto Chemicals Fire-retardant process

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1224204A (en) * 1914-07-31 1917-05-01 William Henry Perkin Treatment of cotton and cotton goods and other combustible substances to render them permanently less inflammable.
US1225414A (en) * 1915-02-06 1917-05-08 Thomas John Ireland Craig Fireproofing of fabrics and other articles.
US1224145A (en) * 1915-06-04 1917-05-01 Whipp Bros & Tod Ltd Fireproofing and bleaching of fabrics and the like.
US1397858A (en) * 1917-10-30 1921-11-22 Whipp Bros & Tod Ltd Fireproofing of textile fabrics and other porous articles
US1444051A (en) * 1919-04-22 1923-02-06 Allison Charles Ridgely Fire-resisting composition
US1860134A (en) * 1930-09-10 1932-05-24 Daniel Manson Sutherland Jr Fireproof fiber product
US2019852A (en) * 1934-04-27 1935-11-05 Turner & Newall Ltd Production of asbestos cement sheets, tiles, and the like
US2125286A (en) * 1935-10-11 1938-08-02 Plastergon Wall Board Company Building construction
US2108761A (en) * 1936-03-28 1938-02-15 Homasote Company Fire resistant pulp board
US2204336A (en) * 1937-08-12 1940-06-11 Earle O Whittier Fiber
US2267913A (en) * 1938-05-11 1941-12-30 Johns Manville Fibrous article of manufacture and method of making the same
US2264976A (en) * 1938-08-03 1941-12-02 Wood Conversion Co Thermal insulation
US2611694A (en) * 1947-06-27 1952-09-23 Homasote Company Inc Fire resistant sheet material
CH276057A (fr) * 1949-02-11 1951-06-30 Corte Mario Plafond suspendu à panneaux.
US2690393A (en) * 1950-06-24 1954-09-28 Armstrong Cork Co Method of producing fire-resistant insulation
US2949385A (en) * 1953-01-27 1960-08-16 Monsanto Chemicals Fire-retardant process
US2909446A (en) * 1954-05-01 1959-10-20 Albright & Wilson Process of flameproofing cellulosic and proteinaceous materials and resulting product
US2901379A (en) * 1956-04-09 1959-08-25 Owens Corning Fiberglass Corp High temperature resistant vitreous material
US2944930A (en) * 1957-04-16 1960-07-12 Celotex Corp Fiberboard

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484340A (en) * 1965-06-04 1969-12-16 Trade & Ind Israel Fire-proofing of cellulosic material with a bonding agent containing bromides
US3619352A (en) * 1967-07-26 1971-11-09 Bowaters Paper Co Ltd Uk Flame retardant hardboard and its manufacture
US3969567A (en) * 1973-03-13 1976-07-13 Tac Construction Materials Ltd. Improvements in and relating to board products
US4145852A (en) * 1976-08-30 1979-03-27 Gerhard Hahn Construction element
US4086737A (en) * 1977-01-07 1978-05-02 Johns-Manville Corporation Refractory fiber blanket module with heat shrinkage compensation
US4170859A (en) * 1977-10-14 1979-10-16 James Counihan Composite structure and assembly joint for a floor system
US4266384A (en) * 1979-06-22 1981-05-12 United States Gypsum Company Fire resistant ceiling furring system
US4373992A (en) * 1981-03-31 1983-02-15 Tarkett Ab Non-asbestos flooring felt containing particulate inorganic filler, a mixture of fibers and a binder
US5042215A (en) * 1988-02-08 1991-08-27 Buchtal Gesellschaft Mit Beschrankter Haftung Natural stone element for lining facades of buildings
US6228497B1 (en) 1998-01-13 2001-05-08 Usg Interiors, Inc. High temperature resistant glass fiber composition and a method for making the same

Also Published As

Publication number Publication date
SE310145B (enrdf_load_stackoverflow) 1969-04-14
GB942220A (en) 1963-11-20

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