US3867241A - Laminar disc of mineral wool - Google Patents

Laminar disc of mineral wool Download PDF

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Publication number
US3867241A
US3867241A US353535A US35353573A US3867241A US 3867241 A US3867241 A US 3867241A US 353535 A US353535 A US 353535A US 35353573 A US35353573 A US 35353573A US 3867241 A US3867241 A US 3867241A
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Prior art keywords
mineral wool
layers
disc
laminated product
article according
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Expired - Lifetime
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US353535A
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English (en)
Inventor
Ulf Karl Henrik Haglund
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Rockwool AB
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Rockwool AB
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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
    • C04B30/00—Compositions for artificial stone, not containing binders
    • C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
    • 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
    • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
    • B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/14—Mineral wool
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • 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
    • Y10T428/21—Circular sheet or circular blank
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24264—Particular fold structure [e.g., beveled, etc.]
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature
    • 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
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension

Definitions

  • ABSTRACT [52] Cl 31x ;3 A mineral wool article formed of a plurality of layers [5]] l t Cl B32; 3/04 B32b 19/02 of mineral wool discs bonded into a laminated prod- [58] "161/42 d 4 44 149 uct, said layers having bent edges relative to the interior part of the layers.
  • the most usual manner is first to fibrate the mineral melt by means of a series of rotating drums, and thereafter, by means of a stream of air, to carry away the spun material fromthe drum, whereby it is deposited on a continuously movable conveyor band, on which the mineral wool will form a mat.
  • the mineral wool On its way from the spinning apparatus to the conveyor band, the mineral wool is often sprayed with a binder means in the form of a solution of plastic, which, at a later time .during the procedure of production, should be cured.
  • the spun mineral wool will deposit itself in the form of loops or bents of fibres, which will be positioned more or less close to parallel with the level of the conveyor band, whereby a decisive sheeting of the mineral wool in the mat will be created, said sheets running at least substantially in parallel to each other as well as to the level of the conveyor band.
  • the curing of the binding means takes place, when the mineral wool, perhaps after compression, leaves the conveyor band, and this curing therefore as a rule took place by the mat being passed through a curing oven.
  • the mat is not at all compressed or only unessentially compressed, but instead it is sewn between layers of paper or other suitable material to be used in its strongly porous state.
  • the thickness of the disc should be a little overdimensioned, so that, when a panel is attached by means of nails to the disc, this disc should be compressed in the direction of its thickness, but this compression will, in relation to the dimension of the disc in the compression direction, be of essentially greater extent.
  • laminar products One cuts out from the perhaps not yet cured mineral wool mat strips, which are turned about their own longitudinal axis by 90 and thereafter again attached to each other, perhaps under compression, so that the fibre levels of said discs will run perpendicularily to the level proper of the mineral wool disc. Perhaps, the cutting in strips and the turning of said strips could also take place after curing has taken place.
  • a typical range of use of such laminar products of mineral wool is for insulation in floors.
  • the insulation layer in the form of the mineral wool disc. in these cases, should be capable of carrying up rather great loads and thereby to be executed for rather great strains in a direction perpendicular to the level of the disc.
  • the load thereby was executed by the pressure from a pressure distribution plate of some kind. As this load will attack the plate in a direction, parallel to the fibre level direction, the disc has a great power of assuming the said loads.
  • the insulation discs of mineral wool should be possible to adapt tightly adjacent to each other in the floor,'and they must then be compressible to some extent in sideward direction.
  • the property of the laminar discs to be strongly sheeted causes a weakness, as far as they rather easily split themselves up in the level of the layers under load conditions, suitable for such splitting.
  • These load conditions regularily happen to exist when handling them, for instance during transportation, moving and so on, and in work, thereby the discs are subjected to bending.
  • Bending and splitting in combination makes the breakage of the disc, especially when the bending strain causes pull strains perpendicularily to the fibre layers. Therefore, it is of great importance that the laminer discs should have a rigidity against such splitting and breaking following thereafter under influence of a bending, which one believed according to the technics used hitherto, only to be capable of ensuring by making the discs with high rigidityagainst bending.
  • cover or line the discs on at least one side but preferably on both sides with a surface liner of high rigidity, for instance glass fibre weft, which had to take up the pull load created at the tendency of bending the disc.
  • the present invention refers to a laminar product of mineral wool, which has the required rigidity against bending in all directions without. therefore being covered by any extra surface layer.
  • the fibre layers are bent at the edges of the mineral wool discs in relation to the fibre layers in the interior parts of the mineral wool that all different kinds of modifications may occur within the frame of the invention.
  • FIG. 1 shows an arrangement for the production of mineral wool discs according to the invention in a strongly simplified and schematical form
  • FIG. 2 shows a section through a mineral wool disc according to the invention, also in strongly simplified and schematical form
  • FIG. 3 shows an enlargement of the edge part of the mineral wool disc according to FIG. 2 in a way, approaching the one existing in practice.
  • FIG. 4 shows a variation of the mineral wool disc according to FIG. 2. 1
  • a path of mineral wool will be derived from a spinner machine.
  • the path 10 is conveyed in the direction of the arrow 11, for instance with intermittent feeding.
  • a strip 12 is cut off from the path by means of a knife device 13.
  • This strip thus has a length perpendicularily to the level of the paper corresponding to the width of the mineral wool path 10.
  • an elongated piston 14 enters. said piston having a bent profile on its attack surface 15, during movement in the direction of the arrow 16 for displacement of the strip 12 into the funnel-formed mouth 36 of a channel 37.
  • a mineral wool disc is built up, which is not yet cured, but which comprises cross-wardly placed laminae I2 l9 20 and so on, and which will successively move forward in the channel 37, which preferably is formed by two continuously or intermittently movable bands, one on each side of the disc to be formed.
  • the mineral wool disc will obtain a width, equal to the length of the strips, and a thickness equal to the free distance between the walls of the channel 37.
  • FIG. 2 One such disc is shown in strongly schematical form and with respect to width as well as length strongly shortened form in FIG. 2, in which every second layer has been marked. It is seen that the disc is composed by laminae or layers 24, 25, 26 and so on, the layer direction of which runs substantially such as is usual in so called cross laminated products of mineral wool, but at the edges the layers are bent over and somewhat compressed, whereby the disc will get an increased rigidity against bending in the bending direction, marked by the arrow 27. From the detail shown in FIG. 3 one will see that the bending of the fibre layers causes a compression, and that the fibre layers at the surface will overlap each other, so that the splitting tendency will practically be annulated. This splitting influence may for instance be caused due to the weight proper of the disc, if one elevates the mineral wool disc when moving same by gripping it at each end 28 and 29, respectively.
  • a laminar disc of the structure shown in FIG. 2, will have a very essentially decreased splitting tendency at bending along the arrow 27 in relation .to conventional laminar products, but nevertheless it will be weaker when bent in this direction than in the direction perpendicular thereto in the level of the disc.
  • This difference may be equalized by causing a bending also in a level, perpendicular to the level, which has been shown as the only bending level in FIG. 2.
  • Such a mineral wool disc is schematically shown in FIG. 4.
  • FIG. 4 By giving the piston 14, FIG. 1, a profile in a direction perpendicular to the level of the paper in the form of a wave-formed space curve.
  • the amplitude of the curves, which are followed by the fibre levels should suitably amount to half part of the thickness of the disc or a little more, but preferably not less.
  • the conception amplitude thereby refers to the middle line of the fibre layers, projected on the main level of the product.
  • the wave length should suitably be at least equal to the amplitude and not more than four-fold the amplitude, preferably about the double of the amplitude, in order that the best result shall be achieved.
  • An article of mineral wool comprising a plurality of layers of fibrous mineral wool discs bonded together to form a laminated product, said layers of said laminated product having bent edges relative to the interior part of said layers, said interior part comprising a major part of the width of said laminated product.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US353535A 1972-04-24 1973-04-23 Laminar disc of mineral wool Expired - Lifetime US3867241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05381/72A SE369164B (US06811534-20041102-M00003.png) 1972-04-24 1972-04-24

Publications (1)

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US3867241A true US3867241A (en) 1975-02-18

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US353535A Expired - Lifetime US3867241A (en) 1972-04-24 1973-04-23 Laminar disc of mineral wool

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US (1) US3867241A (US06811534-20041102-M00003.png)
AT (1) AT324657B (US06811534-20041102-M00003.png)
BE (1) BE798650A (US06811534-20041102-M00003.png)
CH (1) CH559105A5 (US06811534-20041102-M00003.png)
FI (1) FI51856C (US06811534-20041102-M00003.png)
FR (1) FR2182004B3 (US06811534-20041102-M00003.png)
GB (1) GB1421848A (US06811534-20041102-M00003.png)
NL (1) NL7305700A (US06811534-20041102-M00003.png)
SE (1) SE369164B (US06811534-20041102-M00003.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069362A (en) * 1975-10-14 1978-01-17 Rockwool International A/S Core material for building elements of sandwich type
US4119755A (en) * 1975-08-12 1978-10-10 Rockwool International A/S Fire retardant plate material
US20110008587A1 (en) * 2009-07-10 2011-01-13 Edward Ruskin Edge glow protection for composite component
US20190193056A1 (en) * 2016-08-17 2019-06-27 Mitsui Mining & Smelting Co., Ltd. Methane oxidation catalyst

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7910063L (sv) * 1978-12-26 1980-06-27 Vnii Teploizolyatsio Forfarande och anordning for framstellning av mineralfiberplattor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165280A (en) * 1936-06-03 1939-07-11 Owens Corning Fiberglass Corp Method and apparatus for forming a fibrous mat
US2564941A (en) * 1947-10-04 1951-08-21 Wellman Fred Method of making molded laminated articles
US3141811A (en) * 1958-04-01 1964-07-21 Johns Manville Fiber Glass Inc Fibrous laminate and method of producing the same
US3345643A (en) * 1965-03-29 1967-10-10 Mary A L Bradley Disposable dress shield
US3383272A (en) * 1961-07-28 1968-05-14 Gen Fireproofing Co Molded, resin impregnated fibrous rigid product
US3390403A (en) * 1962-12-27 1968-06-25 Jan Van Tilburg Oriented pile structure
US3642560A (en) * 1968-04-01 1972-02-15 Owens Corning Fiberglass Corp Composite articles including bonded fibrous glass with said articles having density gradients

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2165280A (en) * 1936-06-03 1939-07-11 Owens Corning Fiberglass Corp Method and apparatus for forming a fibrous mat
US2564941A (en) * 1947-10-04 1951-08-21 Wellman Fred Method of making molded laminated articles
US3141811A (en) * 1958-04-01 1964-07-21 Johns Manville Fiber Glass Inc Fibrous laminate and method of producing the same
US3383272A (en) * 1961-07-28 1968-05-14 Gen Fireproofing Co Molded, resin impregnated fibrous rigid product
US3390403A (en) * 1962-12-27 1968-06-25 Jan Van Tilburg Oriented pile structure
US3345643A (en) * 1965-03-29 1967-10-10 Mary A L Bradley Disposable dress shield
US3642560A (en) * 1968-04-01 1972-02-15 Owens Corning Fiberglass Corp Composite articles including bonded fibrous glass with said articles having density gradients

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119755A (en) * 1975-08-12 1978-10-10 Rockwool International A/S Fire retardant plate material
US4069362A (en) * 1975-10-14 1978-01-17 Rockwool International A/S Core material for building elements of sandwich type
US20110008587A1 (en) * 2009-07-10 2011-01-13 Edward Ruskin Edge glow protection for composite component
US20190193056A1 (en) * 2016-08-17 2019-06-27 Mitsui Mining & Smelting Co., Ltd. Methane oxidation catalyst

Also Published As

Publication number Publication date
CH559105A5 (US06811534-20041102-M00003.png) 1975-02-28
NL7305700A (US06811534-20041102-M00003.png) 1973-10-26
FI51856B (US06811534-20041102-M00003.png) 1976-12-31
GB1421848A (en) 1976-01-21
FR2182004B3 (US06811534-20041102-M00003.png) 1975-10-24
AT324657B (de) 1975-09-10
FR2182004A1 (US06811534-20041102-M00003.png) 1973-12-07
SE369164B (US06811534-20041102-M00003.png) 1974-08-12
BE798650A (fr) 1973-08-16
FI51856C (fi) 1977-04-12

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