EP1360382B1 - Bauplatte mit abschnitten verschiedener durchschnittlicher druckfestigkeit - Google Patents

Bauplatte mit abschnitten verschiedener durchschnittlicher druckfestigkeit Download PDF

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Publication number
EP1360382B1
EP1360382B1 EP02701003A EP02701003A EP1360382B1 EP 1360382 B1 EP1360382 B1 EP 1360382B1 EP 02701003 A EP02701003 A EP 02701003A EP 02701003 A EP02701003 A EP 02701003A EP 1360382 B1 EP1360382 B1 EP 1360382B1
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EP
European Patent Office
Prior art keywords
panel
domain
building
foam
domains
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Expired - Lifetime
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EP02701003A
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English (en)
French (fr)
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EP1360382A1 (de
Inventor
Alain M. Sagnard
Martin F. Reimers
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Dow Global Technologies LLC
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Dow Global Technologies LLC
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • 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
    • E04B1/7654—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 comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • 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
    • E04B1/7654—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 comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
    • E04B1/7658—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 comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
    • E04D13/1625—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for supporting the insulating material between the purlins or rafters
    • E04D13/1631—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for supporting the insulating material between the purlins or rafters the means deriving from the nature or the shape of the insulating material itself
    • 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
    • E04B2001/7695—Panels with adjustable width
    • 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
    • Y10T428/19—Sheets or webs edge spliced or joined

Definitions

  • the present invention relates to a building panel having at least two panel domains of different average compressive strengths.
  • the panel is useful for filling cavities having non-uniform dimensions, having obstacles disposed therein, or both.
  • Building structures typically contain a framework defining a plurality of cavities with the framework acting as cavity walls.
  • buildings often have a wood or metal framework comprised of studs and joists spaced a certain distance apart.
  • the studs and joists act as cavity walls.
  • a distance between two studs or joists defines a cavity spacing and a volume between two studs or two joists defines a cavity.
  • cavities come in a variety of sizes and shapes and may have obstacles, such as electrical conduit or plumbing pipes, disposed therein. Fitting panels tightly into cavities of varying dimensions and containing a variety of obstacles requires either manufacturing a specific panel for each different cavity or the use of a panel that is sufficiently flexible to conform to different cavity sizes, shapes and obstacles.
  • Fibrous materials such as glass wool and cellulose fiber
  • Fibrous batting is also especially flexible, allowing the batting to buckle, sag, or droop when spanning a wide cavity such as between rafter joists.
  • Rigid polymeric foam such as polystyrene (PS) and rigid polyurethane foam, is attractive as thermal insulation in cavities, but performs less than optimally in conforming to various cavity sizes, shapes and obstacles. Rigid polymeric foam typically requires cutting to conform to a specific cavity.
  • Flexible polymeric foam such as flexible polyurethane foam (FPU) conforms more readily to cavity variations than a rigid foam board. Unfortunately, the flexibility also allows the foam to buckle, sag or droop when spanning a wide cavity such as between rafter joists.
  • FPU flexible polyurethane foam
  • a panel for fitting into cavities has a combination of flexible properties for conforming to cavity shapes, sizes and obstacles and rigid properties to hinder buckling and sagging of the panel when disposed within a cavity.
  • United States patent application 09/706,110 discloses one such panel comprising a combination of hollow and solid coalesced foam strands (see, page 14 lines 7-17).
  • German patent DE8809539U published 15 September 1988 discloses, with reference to Figure 1 thereof, a thermal insulating panel comprising a core of hard plastic foam with two longitudinal edges to which strips of elastically deformable soft plastic foam are attached. In use the two strips are compressed and the panel is clamped between two rafters, the strips lying against the rafters.
  • German patent DE2700468B published 22 June 1978 discloses a thermal insulating inner lining for a roof, in which a thermal insulating panel is positioned between roof rafters, compressible thermal insulating strips being provided between the panel and rafters, the edges of the panel and the thermal insulatin strips resting on support elements fixed to the rafers.
  • a building panel comprising at least two panel domains, wherein each panel domain has an essentially homogeneous compressive strength and an average compressive strength; wherein said panel:
  • At least one panel domain is a conformable panel domain that allows the panel to reversibly bend from a planar to a non-planar configuration.
  • the present invention meets a need by providing a panel that can fit into cavities having various sizes, shapes and obstacles yet does not suffer from handicaps attributed to fibrous materials, rigid foam, or flexible polymeric foam and which is free of hollow and solid foam stands.
  • the panel of the present invention has a slit which facilitates bending of the panel into a non-planar configuration for insertion into a cavity.
  • the panel of the present invention does not require the use of separate supporting elements to retain it within the cavity.
  • a "building panel” refers to a single article useful in fabricating buildings and structures containing cavities.
  • building panel and “panel” are interchangeable.
  • a building panel can be any shape or dimension that has two opposing surfaces, at least one of which is a "primary face".
  • the primary face of a building panel has a surface area equal to that of the highest surface area face on the panel.
  • a building panel may have two primary faces as long as they are opposing and not adjoining.
  • a primary face is desirably a square or rectangle, although it may be any shape, including circular.
  • Building panels having a square or rectangular primary face are square or rectangular building panels, respectively.
  • a primary face is parallel to its opposing face.
  • the face or faces joining a primary face to its opposing face are minor faces, forming a perimeter around the building panel. Examples of minor faces include opposing ends and opposing edges of a square or rectangular building panel.
  • Pant thickness is a perpendicular distance between a primary face and its opposing face.
  • the panel thickness at any point on a primary surface of the building panel is preferably one centimeter (cm) or greater, more preferably 2 cm or greater and may be 5 cm or greater, 10 cm or greater, even 20 cm or greater.
  • cm centimeter
  • a building panel may have contours on one or more surface.
  • a primary surface may have a decorative design or a functional contour, such as cone-like protrusions for acoustical attenuation.
  • the building panel may include grooves to facilitate conforming around obstacles within a cavity or to facilitate bending of the panel.
  • the building panels of the present invention have an essentially uniform panel thickness.
  • a building panel has an essentially uniform panel thickness if a difference in panel thickness at any two points on a primary surface of a building panel is less than 10 percent (%) of an average of the panel thickness at those two points or 5 millimeters (mm), whichever is greater.
  • the building panel has a panel thickness difference of less than 3 mm, more preferably less than 2 mm between any two points in the building panel.
  • a building panel of the present invention further comprises at least two panel domains.
  • a "panel domain” is a section of a building panel that extends a building panel's length, width, thickness, or a combination thereof.
  • a panel domain typically contains at least 1 percent, preferably at least 2 percent, more preferably at least 5 percent, still more preferably at least 10 percent and less than 100 percent of a building panel's volume.
  • suitable panel domains include bands, strips, plugs (such as cylindrical plugs extending the thickness of a building panel) or a combination thereof.
  • panel domains are "bands". Bands are panel domains that traverse a primary face of a building panel. Desirably, a band also extends the thickness of the panel.
  • a band may extend through the panel thickness and extend to opposing ends (the length) of a rectangular building panel.
  • Panel domains may have any shape and size and may differ in size, shape and physical properties within a building panel.
  • at least one panel domain, more preferably at least two panel domains, more preferably all panel domains in a building panel have a thermal conductivity of 0.1 Watt per meter-Kelvin (W/m*K) or less, more desirably 0.065 W/m*K or less, most desirably 0.045 W/m*K or less. Determine thermal conductivity according to ASTM method C-518-98.
  • Each panel domain has an essentially homogeneous compressive strength and an average compressive strength.
  • Essentially homogeneous compressive strength means that any section of the panel domain containing 20 percent of the panel domain volume has an average compressive strength in any direction within 20 percent, preferably within 10 percent of any other section of similar dimensions of the panel domain containing 20 percent of the panel domain volume that is compressed in the same direction and orientation. Measure compressive strength values according to American Society for Testing and Materials (ASTM) method D1621 unless otherwise noted.
  • ASTM American Society for Testing and Materials
  • Average compressive strength is the average compressive strength over a compression range of 0-50 percent, more preferably over a compression range of 0-80 percent.
  • ranges include boundary values unless otherwise stated.
  • Panel domains may be made of wood, metal, glass, rubber, fibrous materials, inorganic foams, organic foams, and combinations thereof.
  • fibrous materials include fiber batting, glass wool, mineral wool, polymeric fiber batting, carbonaceous fibers, and rock wool.
  • Building panels may comprise at least two adjacent domains containing fibrous material provided that if the fibrous material has a fiber orientation, the fiber orientation of one domain is non-orthogonal to the fiber orientation in at least one adjacent domain.
  • United States Patent 4,025,680 discloses a fibrous thermal insulation comprising a plurality of abutting parallel strips of fiber with the fiber orientation in the strips alternating at right angles in the adjacent strips (see, column 2 lines 5-11). Such a material is not within the scope of the present invention since the fiber orientation of each strip (or panel domain) is at a right angle (orthogonal) to the fiber orientation of each adjacent strip.
  • At least one panel domain is free of fibrous materials, more preferably the entire building panel is free of fibrous materials. Still more preferably, at least one panel domain is a polymeric foam; most preferably all panel domains in a building panel comprise polymeric foam.
  • Suitable polymeric foams include those containing one or more of the following: polystyrene (PS) polymers and copolymers; polyesters, polyolefins such as polyethylene (PE), polypropylene (PP), PE copolymers such as ethylene/styrene interpolymers (ESI), and PP copolymers; and polyurethane.
  • PS polystyrene
  • PP polypropylene
  • PE copolymers such as ethylene/styrene interpolymers (ESI), and PP copolymers
  • polyurethane polyurethane.
  • Polymeric foams can contain a blend of polymers, such as PP and PE blends.
  • Polymeric foams preferably have a density of 100 kilograms per cubic meter (kg/m 3 ) or less, more preferably 50 kg/m 3 or less. Foams having a density of greater than 100 kg/m 3 generally have undesirable thermal insulating properties. Foams generally have a density greater than 5 kg/m 3 .
  • Polymeric foams have an average cell diameter. Determine average cell diameter by measuring cell diameters on a cross-section of a foam.
  • the average cell diameter for the foam is an average diameter for 20 or more randomly selected cell cross-sections on the foam cross-section.
  • the diameter of non-spherical cells is the average of the longest and shortest chord through the center of the cell cross-section. View the foam cross-section using optical or electron microscopy.
  • Polymeric foams useful in this invention preferably have an average cell diameter of 0.01 mm or greater, more preferably 0.1 mm or greater, still more preferably, 0.3 mm or greater.
  • the average cell diameter is 10 mm or less, more preferably 4 mm or less, still more preferably 2 mm or less.
  • a foam that has an average cell diameter below 0.01 mm tends to have an undesirably high density.
  • a foam that has an average cell diameter greater than 10 mm tends to be a poor thermal insulator.
  • Building panels of the present invention comprise at least two panel domains that differ in average compressive strength. Measure compressive strength with similar panel domain sections that are of similar size and shape and by compressing in the same direction and orientation.
  • the two panel domains differ in average compressive strength when compressed in a dimension corresponding to a building panel's width.
  • the two panel domains differ in average compressive strength by at least 5 percent, preferably at least 10 percent, more preferably at least 25 percent, and can differ in average compressive strength by 50 percent or more, 100 percent or more, even 200 percent or more.
  • At least one panel domain is conformable.
  • a conformable panel domain is compressible and resilient, thereby imparting a compressibility and compressive recovery to the building panel.
  • a conformable panel domain is advantageously smaller in the dimension of compression than any other dimension so as to hinder buckling of the panel domain during compression.
  • Compressibility at 10 percent compression characterizes the compressibility of a panel domain.
  • a conformable panel domain preferably has a compressive strength at 10 percent compression of 0.1 kiloPascals (kPa) or more, more preferably 0.2 kPa or more, and still more preferably 0.3 kPa or more and 200 kPa or less, more preferably 50 kPa or less, still more preferably 20 kPa or less.
  • a panel domain having a compressive strength less than 0.1 kPa typically lacks sufficient durability while a panel domain having compressive strength greater than 200 kPa is generally too difficult to compress.
  • Percent recovery from 50 percent compression characterizes the resiliency of a panel domain. Measure percent recovery by applying a compressive force to a panel domain sufficient to compress the panel domain to 50 percent of its non-compressed thickness. Relieve the compressive force and measure the panel domain thickness after 24 hours. The panel domain thickness 24 hours after relieving the compressive force divided by the uncompressed thickness of the panel domain is the compressive recovery for the panel domain.
  • a conformable panel domain preferably has a compressive recovery of 60 percent or more, more preferably 70 percent or more, still more preferably 80 percent or more.
  • Compressing at least one conformable panel domain in a building panel reduces at least one dimension of the building panel. Reducing a dimension of a building panel can allow insertion of the building panel into, for example, a cavity having a width less than the uncompressed dimension of the building panel.
  • the building panel has a compressive recovery when no longer compressing the conformable panel domain(s).
  • the compressive recovery of a building panel supplies sufficient pressure against cavity walls to frictionally retain the building panel within a cavity.
  • the compressive recovery will cause a building panel to apply a pressure of between 100 Newtons-per-square-meter (N/m 2 ) or more and 200,000 N/m 2 or less.
  • N/m 2 Newtons-per-square-meter
  • the pressure is 200 N/m 2 or more, more preferably 300 N/m 2 or more.
  • a pressure of less than 100 N/m 2 is generally insufficient to frictionally retain a building panel within a cavity without buckling or sagging.
  • the pressure is preferably 50,000 N/m 2 or less, more preferably 30,000 N/m 2 or less. Building panels that apply a pressure greater than 200,000 N/m 2 are typically very difficult to compress.
  • Suitable conformable panel domains include polymeric foam and fibrous materials such as fiber batting, glasswool, carbonaceous fiber, and mineral wool.
  • the conformable panel domain is a polymeric foam, more preferably an open-celled polymeric foam.
  • Foams for use in conformable panel domains desirably have an open cell content of 5 percent or more, more desirably 10 percent or more, still more desirably 30 percent or more, and most desirably 50 percent or more, according to ASTM method D2856-A.
  • a polymeric foam having less than 5 percent open cell content often lacks a desirable compressibility.
  • Adjacent panel domains within a building panel may have distinct, gradient, or variable boundaries. Two adjacent panel domains have a distinct boundary when at least one building panel property, such as compressive strength or density, abruptly changes from that of one panel domain to that of another panel domain. An abrupt change is one occurring in a distance of 0.5 cm or less, preferably 0.2 cm or less, more preferably 0.1 cm or less. For example, gluing two pieces of polymeric foam having different compressive strengths together along adjacent edges can create a building panel having two panel domains and a distinct boundary between those panel domains. Distinct boundaries separating panel domains by greater than 0.5 cm tend to become gradient boundaries or variable boundaries, or even another panel domain.
  • two panel domains may have a gradient boundary where at least one property is either in between that of each individual panel domain or gradually changes from that of one panel domain to that of an adjacent panel domain.
  • extruding two foams having different densities such that they blend together at an interface can produce a building panel having a gradient boundary that gradually changes from the density of one panel domain to that of the adjacent panel domain.
  • the interface between two panel domains connected with a lap joint would also constitute a gradient boundary.
  • Two panel domains may instead have a variable boundary where at least one building panel property is variable but not steadily changing across the boundary from that of one panel domain to that of the other.
  • Bands preferably traverse the largest dimension of a primary face (the building panel length) and that of its opposing face. Bands may extend orthogonally from one end of the building panel to an opposing end, traverse the building panel diagonally such as from one corner to an opposing corner, or may extend from one end to another in a non-linear shape. Bands can be any shape and size, though they preferably are thicker than they are wide to prevent buckling during compression.
  • One desirable building panel configuration contains a conformable band along at least one edge of a square or rectangular building panel. Such a band is a "conformable edge band". Conformable edge bands allow the building panel to conform to obstacles, such as conduit and plumbing pipes, along cavity walls.
  • Another beneficial building panel configuration comprises conformable panel domains along the ends of the building panel that can fit to obstacles that extend across the end of the building panel within a cavity.
  • a building panel be it square, rectangular or some other shape, may have a perimeter comprising one or more conformable panel domains.
  • Another variation of the square or rectangular building panel comprises at least one conformable band within the building panel that allows the building panel to bend into a non-planar configuration, facilitating insertion into a cavity.
  • One desirable panel domain configuration for the building panels of the present invention has alternating conformable and rigid panel domains, or alternating rigid and conformable bands.
  • a rigid panel domain is a panel domain having a higher average compressive strength than any adjoining conformable panel domain.
  • a square or rectangular building panel may have alternating rigid and conformable bands.
  • FIGs 1, 2a, 2b, and 2c show examples of building panels having alternating conformable and rigid panel domains.
  • FIG 1 shows an example of a building panel 10 (not according to the present invention) having a panel thickness T and comprising two panel domains, 20 and 30.
  • Panel domains 20 and 30 are bands within building panel 10.
  • Panel domain 20 has a higher average compressive strength than panel domain 30.
  • a primary face 15 of building panel 10 comprises faces 22 and 32, respectively, of panel domains 20 and 30.
  • FIG 1 shows an interface 40 between panel domains 20 and 30 as a variable boundary.
  • FIG 1 shows an edge 12 of building panel 10, which also serves as an edge of panel domain 30.
  • Building panel 10 has a length L equaling that of panel domain 30.
  • Building panel 10 has width W.
  • FIGs 2a, 2b and 2c show an example of a building panel 50 according to the present invention having five panel domains 60, 70, 80, 90, and 100. All five panel domains are bands of building panel 50. Panel domains 60, 80, and 100 are conformable. Panel domain 80 allows building panel 50 to bend into a non-planar configuration.
  • FIG 2a shows building panel 50 and cavity 115. The width W' of building panel 50 is larger than the spacing between cavity walls 110 and 120, which define cavity 115.
  • FIG 2b shows building panel 50 after bending into a non-planar configuration for insertion into cavity 115. Applying force F against panel domain 80 returns building panel 50 into a planar configuration within cavity 115, compressing panel domains 60, 80, and 100.
  • FIG 2c shows building panel 50 within cavity 115.
  • Building panels of the present invention include at least one slit traversing a primary face or a face opposing a primary face and extending to a depth less than the panel thickness. Such slits facilitate bending a building panel into a non-planar configuration for insertion into a cavity.
  • FIGs 2a, 2b, and 2c also show such a slit 82 in panel domain 80.
  • FIG 2b shows slit 82 open slightly when building panel 50 bends into a non-planar configuration, thereby facilitating the bending of building panel 50.
  • FIG 3a shows a building panel 130 (not according to the present invention) with two panel domains 132 and 134.
  • Panel domain 134 is a conformable panel domain disposed around the perimeter of building panel 130.
  • FIG 3a shows panel domain 134 as a single piece, but it may also consist of multiple pieces.
  • FIG 3b shows a similar building panel 140 (not according to the present invention) having panel domain 142 and multiple conformable panel domains 144, 146, 148, and 150 around the perimeter of building panel 140.
  • Building panels may have a tongue or a groove profile on at least one minor face.
  • a tongue profile contains a tongue and, preferably, one or two shoulders.
  • a groove profile contains a groove and, preferably, one or two shoulders.
  • a tongue on one building panel advantageously fits into a groove on an adjacent building panel to form a joint between building panels. Any tongue and groove shape is feasible, but rounded shapes are beneficial, enabling the tongue of one building panel to roll into the groove of another building panel. Shoulders assist in keeping the tongue of one building panel from moving out of the groove of an adjacent building panel, thereby causing buckling or sagging at the joint between the two building panels.
  • Shoulders consist of greater than zero percent, preferably 5 percent or more, more preferably 10 percent or more of the panel thickness and desirably 95 percent or less, preferably 80 percent or less and more preferably 60 percent or less of the panel thickness. If the shoulders consist of greater than 95 percent of the panel thickness the tongue tends to easily break.
  • FIGs 4a and 4b show an end-on view of two building panels 160 and 170 (not according to the present invention), and cavity 185, defined by cavity walls 180 and 190.
  • Building panel 160 comprises a conformable panel domain 162 and a rigid panel domain 163 with a tongue profile comprising a tongue 164 and shoulders 166 and 168.
  • Building panel 170 comprises a conformable panel domain 172 and a rigid panel domain 173 with a groove profile comprising a groove 174 and shoulders 176 and 178.
  • Building panels 160 and 170 connectively insert into cavity 185 by placing conformable panel domains 162 and 172 against cavity walls 180 and 190, respectively, and sliding tongue 164 into groove 174 while applying force F' against rigid panel domains 163 and 173.
  • FIG 4b shows building panels 160 and 170 connectively inserted into cavity 185 with conformable panel domains 162 and 172 compressed slightly.
  • One suitable method for preparing building panels of the present invention is by joining together discrete panel domains, such as different pieces of polymeric foam or combinations of polymeric foam and fibrous materials, to form a single building panel.
  • discrete panel domains such as different pieces of polymeric foam or combinations of polymeric foam and fibrous materials
  • a skilled artisan can identify any of a number of means suitable for joining together two panel domains including double sided tape, epoxy or polyurethane adhesives, latex adhesives, hinges, and wires inserted into and possibly through adjoining panel domains. Melt welding polymeric panel domains together using heat or solvents is also acceptable.
  • Another suitable method for preparing building panels of the present invention is by chemically, mechanically, or both chemically and mechanically modifying at least one domain within a building panel initially having an essentially homogeneous compressive strength. For example, buckling or fracturing cell walls or perforating, slicing, or removing portions of a polymeric foam panel domain tends to lower the compressive strength of that panel domain. Slices within a panel domain may be either in a plane or perpendicular to a plane of compression and still lower a compressive strength of the panel domain. Slices in the plane of compression may result in localized buckling of the panel domain. Chemically modifying a panel domain of a polymeric foam also can create panel domains of differing compressive strength.
  • adding a plasticizer to a polymeric foam tends to lower its compressive strength while adding a crosslinker tends to increase the compressive strength of the foam.
  • Chemical and mechanical modifications are also useful for creating domains of differing compressive strengths in building panels that do not have an initially essentially homogeneous compressive strength.
  • Still another acceptable method for preparing a building panel of the present invention is by simultaneously manufacturing the panel domains in such a manner that adjacent panel domains join during manufacturing. For example, coextruding different polymeric foams through dies adjacent to each other such that, during expansion, the polymer foams contact each other and coalesce at a joint where contact occurs. The different foams then form different panel domains in a polymeric foam building panel.
  • coalesced strand foam technology is acceptable for preparing building panels of the present invention.
  • coalesced strand foam technology has unique advantages over other foam technologies in preparing the building panels.
  • Coalesced strand foam technology involves extruding a foamable gel through a die comprising multiple holes to foam a strand foam.
  • the "strands" extrude through the holes, expand, and bind to one another creating a structure, such as a building panel, comprising multiple foam strands.
  • a foam structure comprising a number of coalesced foam strands is a strand foam.
  • Each strand has a skin and a core. The skin wraps around the core and has a higher density than the core. Stands typically bind together as their skins coalesce during expansion. The use of an adhesive to bind strands together or help assist in binding strands together is also acceptable.
  • the compressive strength of a strand foam is a function of many parameters.
  • compressive strength corresponds to compressive strength during radial strand compression when in reference to a strand foam.
  • a strand foam having a given number of strands per cross-sectional area typically has a higher compressive strength than a strand foam having fewer strands per cross-sectional area.
  • One possible reason for a higher compressive strength in the strand foam having more strands per cross-sectional area is that more strands correspond to more skin in a strand foam cross section. The skin establishes a support structure through the strand foam cross section that resists compression.
  • Interstrand spaces also lower a strand foam's compressive strength. Interstrand spaces form when strands are sufficiently small or spaced sufficiently far apart so that neighboring strands touch one another only periodically while expanding. The places where the strands do not touch remain as voids between strands. These voids are interstrand spaces. Interstrand spaces reduce the compressive strength of a strand foam by allowing strands to compress into the spaces instead of into a neighboring strand.
  • Modifying a die through which the foam strands extrude can modify many strand foam parameters, including the compressive strength of a strand foam.
  • a die typically has a certain number of holes per unit area. The holes have a certain shape, size, and a certain orientation in the die. For a given foamable gel extruded through the die to form a strand foam, the number of holes per unit area in the die dictates the number of strands per unit cross-sectional area in the resulting strand foam.
  • the hole shape dictates the shape of the foam strands.
  • the hole size dictates the strand size.
  • the hole orientation dictates the interstrand orientation in the strand foam.
  • Extruding a foamable gel through a die having two or more sections differing in at least one of the following: number of holes per unit area, hole shapes, and hole spacings can create a strand foam having different panel domains.
  • one section of a die may have a specific number of holes per unit area and an adjacent section of the die may have fewer holes per unit area.
  • Expanding a foamable gel through such a die will create a strand foam building panel having one panel domain of a specific number of strands per cross-sectional area adjoined to another panel domain having fewer strands per cross-sectional area.
  • the panel domain having fewer strands per cross-sectional area will have a lower compressive strength than the panel domain having more strands per cross-sectional area.
  • Foam strands may be solid or hollow. Solid strands have foam through the full cross-section of the strand. Hollow strands have foam only around a circumference of the strand cross-section such that the center of the strand cross-section does not contain foam. Hollow strands, and their preparation, are further described in United States patent application number 09/706,110 ('110) (see, page 2 line 30 through page 5 line 17). Hollow strands tend to have a lower compressive strength when compressed radially than solid strands. Building panels of the present invention may contain hollow strands or solid strands, but are essentially free of a combination of hollow and solid strands.
  • a building panel is essentially free of a combination of hollow and solid strands if the difference between the number of solid foam strands and the number of hollow foam strands is greater than 90 percent, preferably greater than 95 percent, more preferably greater than 98 percent of the total number of strands.
  • Polymeric strand foam typically comprises at least one organic polymer for preparing polymeric strand foam.
  • Organic polymers include alkylene aromatic polymers, polyolefins, rubber-modified alkylene aromatic polymers, alkylene aromatic copolymers, hydrogenated alkylene aromatic polymers and copolymers, alpha-olefin homopolymers and copolymers, or blends of the foregoing polymers with a rubber.
  • Preferred polymers include homopolymers and copolymers of PP, PE, and PS, including ESI.
  • FIGs 5a and 5b show building panels 220 and 230 (neither according to the present invention) working in conjunction to span cavity 205.
  • Building panel 220 contains panel domains 222 and 224.
  • Panel domain 222 is conformable.
  • Building panel 230 contains single panel domain 232 having opposing edges 234 and 236.
  • FIG 5a shows building panels 220 and 230 inserting into cavity 205, with panel domain 222 against cavity wall 200 and edge 234 of panel domain 232 against cavity wall 210.
  • Panel domain 222 compresses as the building panels insert into cavity 205.
  • FIG 5b shows building panels 220 and 230 within cavity 205.
  • a building panel of the present invention may connect to at least one other building panel, which may or may not be within the scope of this invention, using at least one hinge to create a hinged building panel.
  • a hinged building panel is capable of reversibly bending at the hinge(s) to assume a non-planar configuration for insertion into a cavity.
  • at least one panel domain may connect at least one other panel domain via at least one hinge.
  • Suitable hinges include bendable polymer or metal strips, polymer or metal films, or actual devices designed for hingedly connecting structures. Hinges may attach to the primary faces of adjacent building panels or panel domains, attach to minor faces of adjacent building panels or panel domains, or penetrate into adjoining building panels or panel domains.
  • One building panel variation includes a hinge between one or two conformable panel domains where, upon insertion of the building panel into a cavity, the conformable panel domain(s) compresses and conforms around the hinge to tightly contact the panel domain to which it is hingedly connected.
  • Panel domains can include facers on at least one surface, particularly a primary surface.
  • Suitable facers include polymeric films, metal sheets and foils (such as aluminum foil), paper, woven and non-woven materials including glass fiber and cloth, and combinations thereof.
  • Such facers can provide additional air barrier properties to a building panel, can act as a hinge between panel domains, can enhance the decorative nature of the building panel and assist in keeping the building panel from buckling or sagging. Facers can, but need not, cover an entire surface of a building panel.
  • a foam building panel comprising a single foam can have cylindrical plugs of another foam (or some other panel domain material), that has either a higher or lower compressive strength than the foam building panel, disposed through the foam thickness in a specific pattern to direct compression of a foam under pressure.
  • building panels comprising a principal domain material can have tapered or grooved sections that are filled with a domain material other than the principal panel domain material.
  • Building panels of the present invention are useful as thermal insulation, acoustical attenuators and insulators, decorations, or simply to fill a cavity to, for example, keep insects or rodents from entering the cavity.
  • the building panels are particularly useful for placing within wall and roof cavities in houses, garages and other buildings.
  • the building panels of the present invention are also useful for placing within wall cavities of, for example, portable insulating containers.
  • Ex 1 illustrates a building panel of the present invention originating from a single strand foam panel. Ex 1 contains a conformable panel domain that is not along a panel edge.
  • Ex 2 illustrates a building panel of the present invention similar to Ex 1 that further comprises conformable panel domain on opposing panel edges ("conformable edge bands").
  • Ex 2 is similar to the panel in FIG 2a and 2b.
  • Ex 2 can conform to larger diameter obstacles on the wall of a cavity than a similar panel free of conformable edge bands, such as Ex 1.
  • Ex 1 and Ex 2 using panels of polyolefin-based coalesced strand foam (such as PROPEL TM 12-20 polymeric foam, PROPEL is a trademark of The Dow Chemical Company) 130 cm long, 60 cm wide, and 10 cm thick.
  • create a conformable panel domain in Ex 1 and Ex 2 by perforating through the foam in a 10 cm wide band through the center of the building panel. Perforate by needle punching using 2 mm diameter needles positioned 5 mm apart along orthogonal axes.
  • create conformable edge bands on Ex 2 by perforating a panel domain 5 cm wide along the edges of Ex 2, using the same needle punching procedure as when forming the 10 cm wide conformable band.
  • the non-perforated panel domains in Ex 1 and Ex 2 are rigid panel domains. Both Ex 1 and 2 illustrate building panels having panel domains that are bands.
  • Table 1 shows the compressive strength for the rigid and conformable panel domains of Ex 1 and 2. Percent strain corresponds to percent compression. Table 1. Compressive Strength in kPa For the Panel Domains in Ex 1 and 2. Panel Domain 10% Strain 25% strain 50% strain 70% strain 90% strain Rigid 23.3 29.0 72.8 123 294 Conformable 12.5 20.8 33.6 54.8 191
  • each stud has a width (defining the depth of the cavity) of greater than 10 cm. Tilt the studs so that the cavity is at a 45 degree angle, relative to horizontal, to simulate a roof pitch.
  • the object simulates, for example, a cable, conduit, or pipe along a stud or joist.
  • Ex 1 or Ex 2 Place either Ex 1 or Ex 2 into the cavity by first bending the building panel along the slit in the 10 cm wide conformable band, inserting the panel edges into the cavity and against the stud surfaces, and then pressing along the slit until the building panel is fully inside the cavity (see, for example, FIGs 2a and 2b). Both Ex 1 and 2 tightly fit into the cavity without buckling when the stud spacing is between 60 cm and 56 cm. Buckling occurs in the building panel when the spacing is less than 56 cm, with buckling most evident in the 10 cm wide conformable band.
  • Ex 1 conforms to a cylindrical object having a diameter of 5 mm or less, forming a tight seal with the stud. Ex 1 does not form a tight seal around a cylindrical object having a 10 mm diameter or greater.
  • Ex 2 conforms to a cylindrical object having a 15 mm diameter, forming a tight seal with the stud.
  • Ex 3 illustrates a building panel of the present invention that contains a polyurethane foam conformable panel domain. Ex 3 further illustrates an advantage of having a conformable edge band for conforming around objects on a cavity wall. Ex 3 has a structure similar to that of the building panel in FIGs 2a and 2b. The panel domains in Ex 3 are examples of bands.
  • Table 3 shows the compressive strength profile for the PU foam.
  • the compressive strength for the PS foam is 229 kPa at yield.
  • Table 3. Compressive Strength of Flexible Polyurethane Foam (in kPa) 10% strain 25% strain 50% strain 70% strain 90% strain 5.07 5.47 5.77 8.72 61.96 Insert Ex 3 into the testing cavity using the procedure described in Ex 1 and 2. Ex 3 fits into cavities having a spacing from 60 cm to 56 cm without buckling and tightly conforms around a cylindrical object having a 15 mm diameter on a major planar surface of the cavity wall.
  • the rigid polyurethane foam has a density of 35 kg/m 3 , according to EN1602, a compressive strength of 146 kPa at yield, and a thermal conductivity of 19 milliwatts per meter-Kelvin (mW/m*K).
  • Ex 4 performs similarly to Ex 3 and further illustrates a building panel of the present invention comprised of polyurethane foam.
  • the thermal conductivity of the hard polyurethane foam makes this a particularly attractive thermally insulating building panel.
  • Ex 5 illustrates an all-fiber building panel of the present invention.
  • Table 4 shows the compressive strengths of the non-compressed (rigid) bands and the compressed (conformable) band. Table 4. Compressive strength in kPa for compressed and non-compressed bands in Ex 5. Panel Domain 5% Strain 10% strain 25% strain 50% strain Non-Compressed (rigid) 2.5 5.2 9.9 18 Compressed (conformable) 1.1 1.4 2.9 16
  • Ex 5 securely fits with a cavity spacing of 57 cm using the cavity wall test apparatus from Ex 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Finishing Walls (AREA)

Claims (10)

  1. Eine Bauplatte, enthaltend wenigstens zwei Bereiche in der Platte, wobei jeder Bereich in der Platte eine im Wesentlichen gleichmäßige Druckfestigkeit hat und eine mittlere Druckfestigkeit, wobei die Platte:
    (a) wenigstens zwei Bereiche in der Platte hat, die unterschiedliche mittlere Druckfestigkeiten haben;
    (b) im Wesentlichen frei von einer Kombination von hohlen und festen Schaumsträngen ist;
    (c) eine im Wesentlichen gleichmäßige Plattendicke hat;
    (d) wenigstens einen nachgiebigen Bereich in der Platte hat, der sich von einer primären Oberfläche zu einer dieser gegenüberliegenden Oberfläche ausdehnt und der, wenn er zusammengedrückt wird, wenigstens eine Dimension der Platte verringert, was es erlaubt, dass die Platte vollständig in einen Hohlraum eingepasst werden kann, der durch Hohlraumwände gebildet ist;
    (e) einen Schlitz hat, der bis in eine Tiefe vordringt, die geringer ist als die Dicke der Platte, welcher die primäre Oberfläche, oder die Oberfläche, die der primären Oberfläche gegenüberliegt, durchquert und der das Biegen der Platte in eine nichtplanare räumliche Anordnung für das Einpassen in diesen Hohlraum erleichtert; und
    (f) ein Kompressions-Rückstellvermögen hat, das, wenn die Platte in diesen Hohlraum eingepasst worden ist, einen ausreichenden Druck gegen die Wände des Hohlraums bereitstellt, dass die Bauplatte in dem Hohlraum durch Reibung verbleibt, wobei dieser Druck 100 N/m2 oder mehr und 200.000 N/m2 oder weniger beträgt; und
    wobei, wenn diese Platte wenigstens zwei benachbarte Plattenbereiche hat, die faserförmiges Material mit einer Faserorientierung enthalten, die Faserorientierung eines Plattenbereiches nichtorthogonal ist zu der Faserorientierung wenigstens eines benachbarten Plattenbereiches.
  2. Die Platte nach Anspruch 1, wobei jeder Plattenbereich einen Polymerschaum enthält.
  3. Die Platte nach Anspruch 1 oder 2, wobei wenigstens ein Plattenbereich ein nachgiebiger Plattenbereich ist, der es ermöglicht, die Platte reversibel aus einer planaren in eine nichtplanare Anordnung zu biegen.
  4. Die Platte nach einem der Ansprüche 1 bis 3, wobei die Platte alternierend nachgiebige und feste Plattenbereiche aufweist.
  5. Die Platte nach einem der Ansprüche 1 bis 4, wobei die Plattenbereiche als Streifen vorliegen.
  6. Die Platte nach einem der Ansprüche 1 bis 5, wobei wenigstens ein Plattenbereich koaleszierende Polymerschaumstreifen umfasst.
  7. Die Platte nach einem der Ansprüche 1 bis 6, wobei wenigstens ein Plattenbereich ein Polymerschaum ist, der einen Gehalt an offenen Zellen von 5% oder mehr aufweist gemäß der American Society for Testing and Materials Methode D2856-A.
  8. Die Platte nach Anspruch 7, wobei der mittlere Zelldurchmesser des Schaumes innerhalb eines Bereiches von 0,1 mm bis 4 mm liegt, die Dichte des Schaumes innerhalb eines Bereiches von 5 kg/m3 bis 50 kg/m3 liegt, und wobei der Schaum einen Gehalt an offenen Zellen von 50% oder mehr hat gemäß der American Society for Testing and Materials Methode D2856-A.
  9. Die Platte nach einem der Ansprüche 1 bis 8, wobei wenigstens eine primäre Oberfläche ein dekoratives Design, ein funktionelles Profil oder sowohl ein dekoratives Design, als auch ein funktionelles Profil umfasst.
  10. Die Platte nach einem der Ansprüche 1 bis 9, wobei diese Platte quadratisch oder rechteckig ist, und wobei diese Platte wenigstens einen nachgiebigen Kantenstreifen umfasst.
EP02701003A 2001-02-02 2002-01-03 Bauplatte mit abschnitten verschiedener durchschnittlicher druckfestigkeit Expired - Lifetime EP1360382B1 (de)

Applications Claiming Priority (3)

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US26611201P 2001-02-02 2001-02-02
US266112P 2001-02-02
PCT/US2002/000127 WO2002063112A1 (en) 2001-02-02 2002-01-03 Building panel having at least two panel domains of different average compressive strength

Publications (2)

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EP1360382A1 EP1360382A1 (de) 2003-11-12
EP1360382B1 true EP1360382B1 (de) 2006-10-11

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US (1) US20020144480A1 (de)
EP (1) EP1360382B1 (de)
JP (1) JP2004518836A (de)
KR (1) KR20030089696A (de)
CN (1) CN1233910C (de)
AT (1) ATE342409T1 (de)
CA (1) CA2436573A1 (de)
DE (1) DE60215309T2 (de)
ES (1) ES2271213T3 (de)
MX (1) MXPA03006908A (de)
PT (1) PT1360382E (de)
TW (1) TW500861B (de)
WO (1) WO2002063112A1 (de)

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EP3385464A1 (de) 2017-04-05 2018-10-10 Recticel Isolierplatte und verfahren zu deren befestigung
US10801205B2 (en) 2018-10-23 2020-10-13 Carlisle Construction Materials, LLC Insulation board with improved performance
US11319708B2 (en) 2018-10-23 2022-05-03 Carlisle Construction Materials, LLC Insulation board with improved performance

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JP4818077B2 (ja) * 2006-11-22 2011-11-16 積水化成品工業株式会社 床用断熱材
JP5378665B2 (ja) * 2007-08-29 2013-12-25 ダウ化工株式会社 冷凍倉庫用の複合断熱板
US20100313507A1 (en) * 2008-01-23 2010-12-16 Carlos Castro Building structures containing external vapor permeable foam insulation
DE102008061542A1 (de) * 2008-12-02 2010-06-10 Eugen Gonon Bauplatte, insbesondere Fassadenplatte als Wärme/Schalldämmung für Außenfassaden, sowie Verfahren zum Verlegen solcher Bauplatten
SI2345535T1 (sl) * 2010-01-18 2017-01-31 Armacell Enterprise Gmbh & Co. Kg Sistem zaščite pred ognjem za ekspandirane polimere
US8528284B2 (en) 2011-08-11 2013-09-10 Mark A. Aspenson Thermal energy venting system
JP5615389B2 (ja) * 2013-01-09 2014-10-29 東洋ゴム工業株式会社 建築構造体及びその製造方法
US20140335292A1 (en) * 2013-05-07 2014-11-13 King Fahd University Of Petroleum And Minerals Thermal insulation panel for buildings
GB2576363B (en) * 2018-08-16 2023-03-01 Ultraframe Uk Ltd Partition panel
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EP3385464A1 (de) 2017-04-05 2018-10-10 Recticel Isolierplatte und verfahren zu deren befestigung
US10801205B2 (en) 2018-10-23 2020-10-13 Carlisle Construction Materials, LLC Insulation board with improved performance
US11319708B2 (en) 2018-10-23 2022-05-03 Carlisle Construction Materials, LLC Insulation board with improved performance
US11808040B2 (en) 2018-10-23 2023-11-07 Carlisle Construction Materials, LLC Insulation board with improved performance

Also Published As

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DE60215309D1 (de) 2006-11-23
CA2436573A1 (en) 2002-08-15
CN1491307A (zh) 2004-04-21
CN1233910C (zh) 2005-12-28
MXPA03006908A (es) 2004-05-05
ATE342409T1 (de) 2006-11-15
TW500861B (en) 2002-09-01
EP1360382A1 (de) 2003-11-12
JP2004518836A (ja) 2004-06-24
DE60215309T2 (de) 2007-05-24
PT1360382E (pt) 2007-01-31
ES2271213T3 (es) 2007-04-16
WO2002063112A1 (en) 2002-08-15
KR20030089696A (ko) 2003-11-22
US20020144480A1 (en) 2002-10-10

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