Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
• • 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
  • B32B19/06—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to a fibrous or filamentary layer
• • 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
  • E04B1/82—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 sound only
  • E04B1/84—Sound-absorbing elements
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
  • B32B2307/102—Insulating
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/30—Properties of the layers or laminate having particular thermal properties
  • B32B2307/306—Resistant to heat
  • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
• • 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
  • B32B2471/00—Floor coverings
  • B32B2471/04—Mats
• • 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
  • E04B1/82—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 sound only
  • E04B1/84—Sound-absorbing elements
  • E04B2001/8457—Solid slabs or blocks
  • E04B2001/8461—Solid slabs or blocks layered

Definitions

• the present invention relates to a method of producing a pliable fire protection and/or sound insulation mat, said mat comprising at least one mineral-fiber based felt layer. Furthermore, the invention concerns a fire protection and/or sound insulation mat produced according to said method.
• fire compartmentalizations and fire insula- tions are accomplished using building boards and/or mineral wool boards, bricks or concrete. Obviously, these materials are not compatible with nonplanar surfaces. Moreover, stiff boards require a supporting frame to keep them in place. Surface insulation materials suited for shotcreeting (e.g., cement-based compounds) typically require a reinforcement fabric to fortify the applied insulation.
• the method according to the invention is character ⁇ ized in that at least one side of at least one felt layer is coated with a fire protection and/or sound insulation compound.
• An embodiment of the method according to the invention is characterized in that one surface of the felt layer is coated by spraying an ablation compound with an energy binding/dissipating compound.
• Another embodiment of the method according to the invention is characterized in that onto the ablation compound layer applied by spraying onto one felt layer is laid a second mineral-fiber felt layer and the layers of the multilayer structure thus formed are attached to each other by pressing.
• the fire protection and/or sound insulation mat according to the invention is characterized in that at least one surface of at least one felt layer is coated with a fire protection and/or sound insulation compound.
• An embodiment of the fire protection and/or sound insula ⁇ tion mat according to the invention is characterized in that one surface of the felt layer is spray-coated with an energy binding/dissipating ablation compound using, e.g., a high-pressure pump.
• Another embodiment of the method according to the invention is characterized in that the mat comprises two felt layers and a layer of an ablation compound applied between said felt layers .
• the multilayer mat according to the invention is superior to the prior art in several aspects .
• the mat In fire hazard opera ⁇ tions such as welding works, the mat is capable of provid ⁇ ing fire protection against ignition and damage to surfaces of various equipment caused by welding sparks and metal/slag spatter.
• the multilayer mat is capable of catching sparks and spatter thus preventing their bouncing about, while even larger blobs of spatter cannot penetrate the mat.
• the mat according to the invention has an appreciably improved heat insulation capability over a glass-fiber cloth or mat conventionally employed for similar purposes.
• the multilayer mat is stiffer than a glass-fiber mat, whereby the multilayer mat can be used to form a fire compartment about fire hazard opera ⁇ tions by hanging the mat from, e.g., ceiling structures.
• the mat is pliable permitting its fitting in tight places and easy transporta ⁇ tion as a roll.
• the mat according to the invention also provides ergonomic benefits: it can be used as a soft platform for, e.g., cushioning a worker's knees in difficult working positions.
• the mat according to the invention may also be used for fire compartmentalization in, e.g., the ceiling spaces of two-apartment houses ⁇ rivitalo? .
• the mat is essentially easier to use in retrofit operations and transport to the tight spaces of ceilings as compared with conventional building boards and mineral wool insulations.
• the mat according to the invention functions as noise and sound insulation.
• the high density of the ablation layer compound combined with the inherent density of the mineral fiber felt achieves a structure exhibiting effective noise abatement and cutoff of acoustic vibra ⁇ tions.
• the multilayer mat is essentially easier to mount about different machinery and other sources of noise than any of the above-mentioned building board structures.
• Figure 1 is a cross-sectional view of a two-layer mat according to the invention.
• Figure 2 is a cross-sectional view of a three-layer mat according to the invention.
• the fire protection and/or sound insulation mat comprises a fire-resistant, thin mineral- fiber based non-woven felt (mineral fiber felt) 1 and a layer of a water/oil-resistant fire protection compound 2.
• the mineral-fiber felt 1 is produced from nonflammable, inorganic mineral wool fibers and organic polymer fibers .
• the fire protection compound 2 is applied as a water-based emulsion of a so-called ablation compound initially developed for fire protection of cables in such projects as space technology research run by NASA.
• the compound is vended in Finland by, e.g., Oy Pyramid-Tekniikka Ltd. under the tradename "KBS-Coating" .
• KBS-Coating The function of an ablative coat is based on physical and chemical reactions occurring in the compound at elevated temperatures . By virtue of such reactions, the compound is capable of effectively consuming (binding) energy, whereby the compound provides a cooling effect on the protected material surface. Such a reaction is called endothermic .
• the ablation compound releases nitrogen at elevated temperatures, whereby oxygen required for combustion is prevented from reaching the material protected by the coat thus making the protected material nonflammable.
• the ablation compound comprises an inorganic dispersion, a solvent-free system, a nonflammable pigment, a binder, fiber material and fire-resistance improving agents .
• the multilayer mat according to the invention is produced by first spray-coating the mineral-fiber felt 1 with the ablation compound 2 using, e.g., a high-pressure pump.
• the good adhesive properties of the ablation compound 2 make the coat "tack" well on the mineral-fiber felt 1.
• the total thickness of the mat shown in Fig. 1 is advantageously approx. 4 mm.
• onto the layer of the ablation compound 2 is next placed a second mineral-fiber felt 3.
• the entire multilayer mat is finally pressed to achieve a compact structure.
• the total thickness of the mat shown in Fig. 2 is advantageously approx. 7 mm.
• the mat structure is pliable.
• the mat is typically delivered in rolls with a width of 1.5 m, standard length of 2.0 m and maximum length of 10 m.
• these exemplifying dimensions are in no way limiting to the invention, but rather, can be varied.
• a bedroom was temporarily divided into fire compartments by means of a vertical multilayer mat supported from the ceiling.
• To one side (combustion compartment) of the partitioning mat was ignited a fire which was allowed to extinguish slowly.
• the space on the other side of the mat was termed the cold compartment.
• Temperatures during the progress of the combustion process were measured in both the combustion and cold compartments. The measurement point was located approx. 200 mm downward from the ceiling.
• the temperatures vs . time were as follows :

Landscapes

• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Acoustics & Sound (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Laminated Bodies (AREA)
• Building Environments (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8538886

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (3)

• 1993
  • 1993-11-01 FI FI934835A patent/FI934835A0/fi not_active Application Discontinuation
• 1994
  • 1994-11-01 WO PCT/FI1994/000488 patent/WO1995012716A1/en active Search and Examination

Patent Citations (3)

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