US20190376280A1 - Method of manufacturing a flame-retardant heat insulating formed product - Google Patents
Method of manufacturing a flame-retardant heat insulating formed product Download PDFInfo
- Publication number
- US20190376280A1 US20190376280A1 US16/433,685 US201916433685A US2019376280A1 US 20190376280 A1 US20190376280 A1 US 20190376280A1 US 201916433685 A US201916433685 A US 201916433685A US 2019376280 A1 US2019376280 A1 US 2019376280A1
- Authority
- US
- United States
- Prior art keywords
- flame
- heat insulating
- retardant heat
- formed product
- manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 239000003063 flame retardant Substances 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000000123 paper Substances 0.000 claims abstract description 23
- 229920000742 Cotton Polymers 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 239000004327 boric acid Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229920000728 polyester Polymers 0.000 claims abstract description 4
- -1 polyethylene Polymers 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 125000005619 boric acid group Chemical group 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 35
- 239000011810 insulating material Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229920003043 Cellulose fiber Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009958 sewing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000002075 main ingredient Substances 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 229910021538 borax Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/36—Moistening and heating webs to facilitate mechanical deformation and drying deformed webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
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- 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
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/12—Moulding of mats from fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B27N9/00—Arrangements for fireproofing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
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- 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
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- 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
- D04H1/554—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 by radio-frequency heating
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- 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
- D04H1/558—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 in combination with mechanical or physical treatments other than embossing
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- D—TEXTILES; PAPER
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- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
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- D21H13/02—Synthetic cellulose fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
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- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
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- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
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- D—TEXTILES; PAPER
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- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
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- D21J1/06—Drying
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
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- 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
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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- 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
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/026—Mattresses, mats, blankets or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K21/00—Fireproofing materials
- C09K21/02—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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/742—Use of special materials; Materials having special structures or shape
- E04B2001/745—Vegetal products, e.g. plant stems, barks
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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- 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
- E04B2001/742—Use of special materials; Materials having special structures or shape
- E04B2001/746—Recycled materials, e.g. made of used tires, bumpers or newspapers
Definitions
- the present invention relates to a method of manufacturing a flame-retardant heat insulating formed product in the shape of a mat and the like.
- glass wool, rock wool and the like which are inexpensive and good in workability, are used.
- the glass wool and the like have problems with a hygiene perspective, and since recycling is difficult, are not good for the environment.
- cellulose fibers obtained by defibrating paper such as used paper are excellent as heat insulating materials, but are expensive. Further, in construction, since work is performed by a blowing scheme, dust tends to occur and is bad for the environment, and there is a drawback that workability is poor.
- the inventor of the present invention improved problems of conventional heat insulating materials, and has proposed a heat insulating material which has a sound insulation effect and flame-retardant effect, and is excellent in construction workability and economic efficiency. Further, the heat insulating material enables the material to be recycled, and therefore, is also excellent in environmental characteristics (see Patent Document 1).
- a heat insulating material prepared by stirring and mixing cellulose fibers obtained by defibrating paper and cotton-shaped synthetic fibers with polypropylene as the main ingredient, and further mixing boric acid and borax.
- a mat-shaped formed product for storing the above-mentioned heat insulating material to apply the heat insulating material to a wall and ceiling of a structure (see FIGS. 2 and 3 ).
- Paper such as used paper is defibrated to prepare cellulose fibers.
- Synthetic fibers with polypropylene as the main ingredient are prepared and crushed into cotton shapes.
- the heat insulating material of a structure is obtained by stirring and mixing the cellulose fibers prepared in the step of above-mentioned (1) and cotton-shaped synthetic fibers with polypropylene as the main ingredient prepared in the step of above-mentioned (2). Further, boric acid and borax are mixed.
- FIG. 2 is a perspective view of the mat-shaped formed product
- FIG. 3 is a cross-sectional view along the line A-A of FIG. 2 .
- Three end portions of a bag body 2 of two overlapped nonwoven fabric, paper, film or the like are joined by a method using sewing, melting, adhesive or the like.
- An opened end portion of the bag body 2 is opened to fill with a loose material 4 made of the heat insulating material, and the opened end portion is joined by a method using sewing, melting, adhesive or the like to prepare the mat-shaped formed product.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2017-89208
- Step of opening an opened end portion of the bag body 2 to fill with a loose material 4 and joining the opened end portion by a method using sewing, melting, adhesive or the like.
- the means for attaining the object of the present invention is as described below.
- a method of manufacturing a flame-retardant heat insulating formed product including the step of pouring water in used paper or a pulp material to defibrate and obtain defibrated cotton, the step of charging a flame retardant into the defibrated cotton, and by stirring and heating, obtaining flame-retardant heat insulating defibrated cotton, the step of charging short fibers with a low melting point into the flame-retardant heat insulating defibrated cotton, and by mixing and stirring, obtaining a flame-retardant heat insulating loose material, the step of filling a forming die made of paper provided with a lid with the flame-retardant heat insulating loose material, the step of heating the flame-retardant heat insulating loose material together with the forming die with a microwave heating apparatus to form, and the step of removing a formed product from the forming die.
- raw materials of the forming die to manufacture the flame-retardant heat insulating formed product may be paper such as corrugated cardboard commonly used in packing and the like. Then, since a forming die formed from a metal die or wood die is not used, it is possible to promptly manufacture the forming die, and to obtain the flame-retardant heat insulating formed product having the sound insulation effect at very low cost.
- FIG. 1 contains schematic diagrams to explain a method of manufacturing a flame-retardant heat insulating formed product according to the present invention
- FIG. 2 is a perspective view of a mat-shaped formed product filled with a heat insulating material as a loose material
- FIG. 3 is a cross-sectional view along the line A-A of FIG. 2 .
- a mat-shaped flame-retardant heat insulating formed product will be exemplified as a flame-retardant heat insulating formed product to describe a manufacturing method thereof.
- FIGS. 1A to 1C are schematic diagrams to explain steps up to manufacturing of a flame-retardant heat insulating loose material.
- FIGS. 1D and 1E are schematic diagrams to explain steps up to manufacturing of a forming die made of paper
- FIGS. 1F to 1H are schematic diagrams to explain steps of from filling the prepared forming die made of paper with the flame-retardant heat insulating loose material to obtaining a flame-retardant heat insulating formed product.
- a flame retardant such as boric acid and boron is charged into the defibrated cotton, and by stirring and heating, flame-retardant heat insulating defibrated cotton is obtained.
- short fibers with a low melting point such as polyester, polyethylene and polypropylene are charged into the flame-retardant heat insulating defibrated cotton, and by mixing and stirring, the flame-retardant heat insulating loose material is obtained.
- the forming die is provided with a lid having a plurality of air vents, and is configured to be structure where the thickness is thin, as compared with the vertical and horizontal lengths.
- Corrugated cardboard made of paper commonly used in packing and the like is prepared, is subjected to cutting creasing processing according to a development diagram as shown in FIG. 1D as one example, and next, is built to be the forming die made of paper having a lid as shown in FIG. 1E .
- One example of the forming die made of paper is as shown in FIG. 1E , and various shapes are considered as its shape, and are selected as appropriate corresponding to a shape of a required flame-retardant heat insulating formed product.
- the thickness of the corrugated cardboard required of the forming die is about 3 mm in the case where the sum of vertical and horizontal lengths and thickness is about 100 cm, is about 5 mm in the case where the sum ranges from about 100 cm to 150 cm, and is 5 mm or more in the case where the sum is 150 cm or more.
- corrugated cardboard with a thickness of 3 mm may be used.
- the lid is put on.
- the lid of the forming die is to prevent the filled flame-retardant heat insulating loose material from being dissipated from the upper portion, at the time of carrying and at the time of microwave heating.
- the lid of the forming die has an effect of promoting forming by heating, on average, the flame-retardant heat insulating loose material filled with steam heat at the time of microwave heating.
- the lidded forming die filled with the flame-retardant heat insulating loose material is heated with a microwave heating apparatus.
- the lid of the forming die is provided with air vents for ventilation. It is preferable that the diameter of the air vent is about 5 mm, and that a plurality of vents is provided at intervals ranging from 2 cm to 5 cm.
- the short fiber with a low melting point contained in the flame-retardant heat insulating loose material reaches a melting point by heating at a temperature of 110° C. or more.
- the flame-retardant heat insulating loose material is mutually joined.
- the mat-shaped formed product is removed from the forming die, and by natural cooling, the mat-shaped flame-retardant heat insulating formed product is obtained as shown in FIG. 1H .
- One example of a manufacturing process of the mat-shaped formed product is as described below.
- a beforehand prepared forming die made of corrugated cardboard provided with a lid having air vents is filled with the flame-retardant heat insulating loose material.
- the flame-retardant heat insulating loose material is heated together with the forming die with a microwave heating apparatus at a temperature of 110° C. or more for 120 seconds to 600 seconds.
- the flame-retardant heat insulating formed product made the shape of a mat is removed from the forming die, and is subjected to natural cooling.
- the method of manufacturing a mat-shaped formed pro duct is exemplified and described as the Embodiment, but the formed product according to the present invention is not limited to the mat-shaped product.
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- Acoustics & Sound (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
A method of manufacturing a flame-retardant heat insulating formed product in the shape of a mat includes pouring water in used paper or a pulp material to defibrate and obtain defibrated cotton. A flame retardant such as a boric acid is charged into the defibrated cotton. By stirring and heating, a flame-retardant heat insulating defibrated cotton is obtained. Short fibers with a low melting point made of polyester or the like are charged into the flame-retardant heat insulating defibrated cotton. By mixing and stirring, a flame-retardant heat insulating loose material is obtained. A forming die made of corrugated cardboard provided with a lid having air vents is filled with the flame-retardant heat insulating loose material. The flame-retardant heat insulating loose material together with the forming die are heated with a microwave heating apparatus to form. A mat-shaped formed product is removed from the forming die.
Description
- The present invention relates to a method of manufacturing a flame-retardant heat insulating formed product in the shape of a mat and the like.
- As heat insulating materials used in a wall, ceiling and the like of a structure, glass wool, rock wool and the like, which are inexpensive and good in workability, are used. However, the glass wool and the like have problems with a hygiene perspective, and since recycling is difficult, are not good for the environment.
- On the other hand, cellulose fibers obtained by defibrating paper such as used paper are excellent as heat insulating materials, but are expensive. Further, in construction, since work is performed by a blowing scheme, dust tends to occur and is bad for the environment, and there is a drawback that workability is poor.
- In view of the aforementioned respect, as heat insulating materials of structures, glass wool and the like are used in almost construction examples.
- In terms of such a background, the inventor of the present invention improved problems of conventional heat insulating materials, and has proposed a heat insulating material which has a sound insulation effect and flame-retardant effect, and is excellent in construction workability and economic efficiency. Further, the heat insulating material enables the material to be recycled, and therefore, is also excellent in environmental characteristics (see Patent Document 1).
- The general outlines of the proposed heat insulating material are as described below.
- (1) A heat insulating material prepared by stirring and mixing cellulose fibers obtained by defibrating paper and cotton-shaped synthetic fibers with polypropylene as the main ingredient, and further mixing boric acid and borax.
(2) A mat-shaped formed product for storing the above-mentioned heat insulating material to apply the heat insulating material to a wall and ceiling of a structure (seeFIGS. 2 and 3 ). - (1) Paper such as used paper is defibrated to prepare cellulose fibers.
(2) Synthetic fibers with polypropylene as the main ingredient are prepared and crushed into cotton shapes.
(3) The heat insulating material of a structure is obtained by stirring and mixing the cellulose fibers prepared in the step of above-mentioned (1) and cotton-shaped synthetic fibers with polypropylene as the main ingredient prepared in the step of above-mentioned (2). Further, boric acid and borax are mixed. - Manufacturing of the mat-shaped formed product filled with the heat insulating material as a loose material will be described with reference to
FIGS. 2 and 3 . -
FIG. 2 is a perspective view of the mat-shaped formed product, andFIG. 3 is a cross-sectional view along the line A-A ofFIG. 2 . - Three end portions of a
bag body 2 of two overlapped nonwoven fabric, paper, film or the like are joined by a method using sewing, melting, adhesive or the like. - An opened end portion of the
bag body 2 is opened to fill with a loose material 4 made of the heat insulating material, and the opened end portion is joined by a method using sewing, melting, adhesive or the like to prepare the mat-shaped formed product. - [Patent Document 1] Japanese Unexamined Patent Publication No. 2017-89208
- In the method of manufacturing the formed product shown in
FIGS. 2 and 3 proposed previously, since the following steps are required, there has been a drawback that the formed product is high in cost. - (1) Step of joining three end portions of a
bag body 2 of two overlapped nonwoven fabric, paper, film or the like by a method using sewing, melting, adhesive or the like.
(2) Step of opening an opened end portion of thebag body 2 to fill with a loose material 4, and joining the opened end portion by a method using sewing, melting, adhesive or the like. - Accordingly, it is an object of the present invention to provide a method of manufacturing a flame-retardant heat insulating formed product in the shape of a mat and the like which has a sound insulation effect, is excellent in environmental characteristics and is excellent in economic efficiency with the manufacturing steps simplified.
- The means for attaining the object of the present invention is as described below.
- (1) A method of manufacturing a flame-retardant heat insulating formed product, including the step of pouring water in used paper or a pulp material to defibrate and obtain defibrated cotton, the step of charging a flame retardant into the defibrated cotton, and by stirring and heating, obtaining flame-retardant heat insulating defibrated cotton, the step of charging short fibers with a low melting point into the flame-retardant heat insulating defibrated cotton, and by mixing and stirring, obtaining a flame-retardant heat insulating loose material, the step of filling a forming die made of paper provided with a lid with the flame-retardant heat insulating loose material, the step of heating the flame-retardant heat insulating loose material together with the forming die with a microwave heating apparatus to form, and the step of removing a formed product from the forming die.
(2) The method of manufacturing a flame-retardant heat insulating formed product as described in (1), characterized in that the forming die made of paper is a forming die made of corrugated cardboard.
(3) The method of manufacturing a flame-retardant heat insulating formed product as described in (1) or (2), characterized in that the lid of the forming die is a lid having an air vent.
(4) The method of manufacturing a flame-retardant heat insulating formed product as described in any one of (1) to (3), characterized in that the flame retardant is a boric acid or boron.
(5) The method of manufacturing a flame-retardant heat insulating formed product as described in any one of (1) to (4), characterized in that the short fibers with a low melting point are made of polyester, polyethylene or polypropylene.
(6) The method of manufacturing a flame-retardant heat insulating formed product as described in any one of (1) to (5), characterized in that the flame-retardant heat insulating formed product is a mat-shaped formed product. - According to the present invention, raw materials of the forming die to manufacture the flame-retardant heat insulating formed product may be paper such as corrugated cardboard commonly used in packing and the like. Then, since a forming die formed from a metal die or wood die is not used, it is possible to promptly manufacture the forming die, and to obtain the flame-retardant heat insulating formed product having the sound insulation effect at very low cost.
-
FIG. 1 contains schematic diagrams to explain a method of manufacturing a flame-retardant heat insulating formed product according to the present invention; -
FIG. 2 is a perspective view of a mat-shaped formed product filled with a heat insulating material as a loose material; and -
FIG. 3 is a cross-sectional view along the line A-A ofFIG. 2 . - A mat-shaped flame-retardant heat insulating formed product will be exemplified as a flame-retardant heat insulating formed product to describe a manufacturing method thereof.
-
FIGS. 1A to 1C are schematic diagrams to explain steps up to manufacturing of a flame-retardant heat insulating loose material. - Further,
FIGS. 1D and 1E are schematic diagrams to explain steps up to manufacturing of a forming die made of paper, andFIGS. 1F to 1H are schematic diagrams to explain steps of from filling the prepared forming die made of paper with the flame-retardant heat insulating loose material to obtaining a flame-retardant heat insulating formed product. - In manufacturing of the flame-retardant heat insulating loose material, as shown in
FIG. 1A , first, water is poured in used paper or a pulp material to defibrate and obtain defibrated cotton. - Next, as shown in
FIG. 1B , a flame retardant such as boric acid and boron is charged into the defibrated cotton, and by stirring and heating, flame-retardant heat insulating defibrated cotton is obtained. - Further, as shown in
FIG. 1C , short fibers with a low melting point such as polyester, polyethylene and polypropylene are charged into the flame-retardant heat insulating defibrated cotton, and by mixing and stirring, the flame-retardant heat insulating loose material is obtained. - The forming die is provided with a lid having a plurality of air vents, and is configured to be structure where the thickness is thin, as compared with the vertical and horizontal lengths.
- Corrugated cardboard made of paper commonly used in packing and the like is prepared, is subjected to cutting creasing processing according to a development diagram as shown in
FIG. 1D as one example, and next, is built to be the forming die made of paper having a lid as shown inFIG. 1E . - One example of the forming die made of paper is as shown in
FIG. 1E , and various shapes are considered as its shape, and are selected as appropriate corresponding to a shape of a required flame-retardant heat insulating formed product. - It is preferable that the thickness of the corrugated cardboard required of the forming die is about 3 mm in the case where the sum of vertical and horizontal lengths and thickness is about 100 cm, is about 5 mm in the case where the sum ranges from about 100 cm to 150 cm, and is 5 mm or more in the case where the sum is 150 cm or more.
- In addition, in the case of the low number of production lots, corrugated cardboard with a thickness of 3 mm may be used.
- As shown in
FIG. 1F , after filling the forming die made of paper with the flame-retardant heat insulating loose material and compressing, the lid is put on. The lid of the forming die is to prevent the filled flame-retardant heat insulating loose material from being dissipated from the upper portion, at the time of carrying and at the time of microwave heating. - Further, the lid of the forming die has an effect of promoting forming by heating, on average, the flame-retardant heat insulating loose material filled with steam heat at the time of microwave heating.
- Next, as shown in
FIG. 1G , the lidded forming die filled with the flame-retardant heat insulating loose material is heated with a microwave heating apparatus. - At the time of microwave heating, moisture of the flame-retardant heat insulating loose material is heated and vaporized. Therefore, the lid of the forming die is provided with air vents for ventilation. It is preferable that the diameter of the air vent is about 5 mm, and that a plurality of vents is provided at intervals ranging from 2 cm to 5 cm.
- The short fiber with a low melting point contained in the flame-retardant heat insulating loose material reaches a melting point by heating at a temperature of 110° C. or more. By fusing of the short fiber with a low melting point, the flame-retardant heat insulating loose material is mutually joined. After heating and forming with the microwave heating apparatus, the mat-shaped formed product is removed from the forming die, and by natural cooling, the mat-shaped flame-retardant heat insulating formed product is obtained as shown in
FIG. 1H . - One example of a manufacturing process of the mat-shaped formed product is as described below.
- (1) In 1 kg of used paper or pulp material, water is poured in a weight ratio of 30% to 45%, and the resultant is defibrated for 120 seconds to 300 seconds to be defibrated cotton.
(2) Into the defibrated cotton is charged 150 g of boric acid, the resultant is stirred and heated for 60 seconds to impregnate, and flame-retardant heat insulating defibrated cotton is obtained.
(3) Into the flame-retardant heat insulating defibrated cotton is charged 300 g to 800 g (30% to 80% in a weight ratio) of short fibers with a low melting point, and the resultant is mixed and stirred for 60 seconds to obtain a flame-retardant heat insulating loose material.
(4) A beforehand prepared forming die made of corrugated cardboard provided with a lid having air vents is filled with the flame-retardant heat insulating loose material.
(5) The flame-retardant heat insulating loose material is heated together with the forming die with a microwave heating apparatus at a temperature of 110° C. or more for 120 seconds to 600 seconds.
(6) The flame-retardant heat insulating formed product made the shape of a mat is removed from the forming die, and is subjected to natural cooling. - In addition, in the present Description, the method of manufacturing a mat-shaped formed pro duct is exemplified and described as the Embodiment, but the formed product according to the present invention is not limited to the mat-shaped product.
- It is needless to say that any appropriate design modification is capable of being made to manufacturing of the flame-retardant heat insulating formed product, without departing from the scope of the claims.
Claims (6)
1. A method of manufacturing a flame-retardant heat insulating formed product, including:
pouring water in used paper or a pulp material to defibrate and obtain defibrated cotton;
charging a flame retardant into the defibrated cotton, and by stirring and heating, obtaining flame-retardant heat insulating defibrated cotton;
charging short fibers with a low melting point into the flame-retardant heat insulating defibrated cotton, and by mixing and stirring, obtaining a flame-retardant heat insulating loose material;
filling a forming die made of paper provided with a lid with the flame-retardant heat insulating loose material;
heating the flame-retardant heat insulating loose material together with the forming die with a microwave heating apparatus to form; and
removing a formed product from the forming die.
2. The method of manufacturing a flame-retardant heat insulating formed product according to claim 1 , wherein the forming die made of paper is a forming die made of corrugated cardboard.
3. The method of manufacturing a flame-retardant heat insulating formed product according to claim 1 , wherein the lid of the forming die has an air vent.
4. The method of manufacturing a flame-retardant heat insulating formed product according to claim 1 , wherein the flame retardant is a boric acid or boron.
5. The method of manufacturing a flame-retardant heat insulating formed product according to claim 1 , wherein the short fibers with a low melting point are made of polyester, polyethylene or polypropylene.
6. The method of manufacturing a flame-retardant heat insulating formed product according to claim 1 , wherein the flame-retardant heat insulating formed product is a mat-shaped formed product.
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JP2018109259A JP6402299B1 (en) | 2018-06-07 | 2018-06-07 | Preparation method of flame retardant insulation |
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US (1) | US20190376280A1 (en) |
EP (1) | EP3578701B1 (en) |
JP (1) | JP6402299B1 (en) |
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US20210070235A1 (en) * | 2019-09-06 | 2021-03-11 | GM Global Technology Operations LLC | Direct molded acoustic insulators |
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JP2021154543A (en) * | 2020-03-25 | 2021-10-07 | 昌夫 山田 | Manufacturing method of compact |
CN111764050B (en) * | 2020-06-19 | 2021-08-10 | 北京卫星制造厂有限公司 | Insulation board production line |
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DE69300499T2 (en) * | 1992-03-13 | 1996-02-29 | Settsu Corp | Method of making a cushion from waste paper or pulp. |
JP2535286B2 (en) * | 1992-06-23 | 1996-09-18 | セッツ株式会社 | Method of forming cushioning material using waste paper or pulp |
JPH1143853A (en) * | 1997-07-18 | 1999-02-16 | Sintokogio Ltd | Molding of fibrous elastic member and apparatus therefor |
JP2003105887A (en) * | 2001-07-25 | 2003-04-09 | Hikari Toshi Sogo Sekkei:Kk | Cellulose fiber-made heat insulator |
JP2005009062A (en) * | 2002-12-03 | 2005-01-13 | Tamapack Kk | Waste paper fibrous material utilizing system and waste paper defibrating machine |
CN1851187B (en) * | 2006-04-29 | 2011-11-23 | 崔南华 | Thermosetting acoustical cotton, and its production method |
JP2007296810A (en) * | 2006-05-02 | 2007-11-15 | Kuritee:Kk | Block or molded article and its manufacturing method |
WO2008004431A1 (en) * | 2006-07-03 | 2008-01-10 | Nagoya Oilchemical Co., Ltd. | Fiber sheet |
US7744143B2 (en) * | 2007-01-10 | 2010-06-29 | Federal Mogul Powertrain | Nonwoven panel and method of construction thereof |
CN101737589A (en) * | 2008-11-21 | 2010-06-16 | 尤尼吉可纺织品株式会社 | Sound absorption heat insulating material |
FR3006693B1 (en) * | 2013-06-05 | 2016-04-01 | Menuiseries Elva | METHOD FOR MANUFACTURING COMPOSITE MATERIAL BASED ON NATURAL FIBERS SENSITIVE WITH MYCELIUM AND PIECE OBTAINED BY SUCH A METHOD |
CN103950084B (en) * | 2014-04-28 | 2016-03-30 | 复旦大学 | Microwave sizing stalk manufactures the method for environmental protection wood materials |
CN105328760A (en) * | 2014-08-15 | 2016-02-17 | 哈尔滨盛世华林科技有限公司 | Manufacturing method for environment-friendly and energy-saving decoration board resisting fire, electromagnetic radiation and static |
TWM512602U (en) * | 2014-12-12 | 2015-11-21 | Golden Arrow Printing Co Ltd | Microwave drying assembly for wet pulp molding process |
CN105131627B (en) * | 2015-08-10 | 2017-10-13 | 广西大学 | A kind of composite flame-retardant agent and its method for preparing flame retardant fibre board |
JP2017089208A (en) | 2015-11-09 | 2017-05-25 | 特定非営利活動法人 体育環境発明機構 | Humidity-controlling heat insulation material for building and manufacturing method thereof, molding material for humidity control and heat insulation of building, and molded body |
KR101754907B1 (en) * | 2016-06-10 | 2017-07-06 | 김진규 | Functional cellulose composite fiber panel and preparation method thereof |
CN106426497A (en) * | 2016-11-10 | 2017-02-22 | 吉林省林业科学研究院 | Fiber plate and manufacturing method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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US20210070235A1 (en) * | 2019-09-06 | 2021-03-11 | GM Global Technology Operations LLC | Direct molded acoustic insulators |
US11498495B2 (en) * | 2019-09-06 | 2022-11-15 | GM Global Technology Operations LLC | Direct molded acoustic insulators |
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CN110578272A (en) | 2019-12-17 |
JP6402299B1 (en) | 2018-10-10 |
KR20190139123A (en) | 2019-12-17 |
EP3578701B1 (en) | 2021-01-27 |
TWI690400B (en) | 2020-04-11 |
EP3578701A1 (en) | 2019-12-11 |
CN110578272B (en) | 2021-11-09 |
TW202000408A (en) | 2020-01-01 |
JP2019209291A (en) | 2019-12-12 |
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