US3843486A - Method of manufacturing sandwich elements - Google Patents
Method of manufacturing sandwich elements Download PDFInfo
- Publication number
- US3843486A US3843486A US00135854A US13585471A US3843486A US 3843486 A US3843486 A US 3843486A US 00135854 A US00135854 A US 00135854A US 13585471 A US13585471 A US 13585471A US 3843486 A US3843486 A US 3843486A
- Authority
- US
- United States
- Prior art keywords
- layer
- binder
- solid particles
- support member
- particles
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 53
- 239000002245 particle Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000007787 solid Substances 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000003892 spreading Methods 0.000 claims abstract description 12
- 239000011162 core material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical class O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
- 239000004312 hexamethylene tetramine Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- -1 polyethylenes Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
- B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
- B29C37/0082—Mechanical anchoring
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D24/00—Producing articles with hollow walls
- B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
- B29D24/005—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having joined ribs, e.g. honeycomb
-
- 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
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B13/06—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/16—Layered products comprising a layer of metal next to a particulate layer
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/068—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of particles
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/146—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers whereby one or more of the layers is a honeycomb structure
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
-
- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
-
- 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
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
- E04C2/36—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
- B29K2105/0845—Woven fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/20—Inserts
- B29K2105/206—Meshes, lattices or nets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2711/00—Use of natural products or their composites, not provided for in groups B29K2601/00 - B29K2709/00, for preformed parts, e.g. for inserts
- B29K2711/12—Paper, e.g. cardboard
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
-
- 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
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/12—Mixture of at least two particles made of different materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
- B32B2311/00—Metals, their alloys or their compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/08—Glass
-
- 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
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- 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
- B32B2327/00—Polyvinylhalogenides
- B32B2327/06—PVC, i.e. polyvinylchloride
-
- 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
- B32B2329/00—Polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals
-
- 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
- B32B2331/00—Polyvinylesters
- B32B2331/04—Polymers of vinyl acetate, e.g. PVA
-
- 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
- B32B2363/00—Epoxy resins
-
- 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
- B32B2371/00—Polyethers, e.g. PEEK, i.e. polyether-etherketone; PEK, i.e. polyetherketone
-
- 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
- B32B2375/00—Polyureas; Polyurethanes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
Definitions
- the distance material is liable to penetrate to different depths in the external unit or units, thereby causing the pattern of the distance material to be visible in patches on the external unit or units of the sandwich elements.
- the degree of adhesion between the external unit or units and the distance material will vary with the depth to which the distance material penetrates into the external unit or units.
- Another disadvantage is that the thickness of a number of sandwich elements as well as the thickness of one sandwich element varies, owing to the fact that the distance material penetrates into the external unit or units to different depths.
- the main object of the present invention is therefore to eliminate these disadvantages.
- a strip-like support member of flexible sheet material intended to regulate the depth to which the distance material penetrates into the external unit or units of the sandwich element is applied in said external unit or units when each of said units is spread out on a base, at a predetermined level from the base.
- the method comprises the steps of spreading out a first layer of a mixture of solid particles and liquid resinous binder on a base, applying a strip-like support member on the surface of said first layer, spreading out a second layer of a mixture of solid particles and liquid resinous binder on said first layer and said support member, the quantity of "Ice the binder in at least said mixture forming said second layer exceeding the volume of spaces between the solid particles in said mixture forming said second layer, subsequently allowing the solid particles to settle and to form a settled layer of particles with binder therebetween, forming from the excess binder an outer layer, inserting into said outer layer and into engagement with said support member one side of a distance material of cellular structure to at least partially absorb and/or pick up said excess binder, and finally allowing said binder to harden.
- the method of the present invention may be used to produce both flat and curved sandwich structures, in which one or both sides of the core element, i.e., the distance material is or are united with a spread-out layer of binder and solid particles in accordance with the improved meth- 0d.
- FIG. 1 illustrates by way of example a system for spreading out an external unit of a sandwich element
- FIG. 2 illustrates a cross section of a part of a sandwich element manufactured in accordance with the invention.
- a first layer 3 of the mixture of liquid resinous binder and solid particles is spread out by means of a doctor device 2 on a fiat base 1, which is arranged to move in the direction indicated by the arrow A, the mixture being supplied from a first supply 4.
- a strip-like support member shown as a sheet of flexible material 6 is fed from a supply reel 5 between the supply 4 and the doctor device 2 in a manner whereby the support member 6 lies substantially in the surface of the first layer 3.
- a further doctor device 7 which is arranged to spread out a second layer 8 of a mixture of liquid resinous binder and solid particles, this latter mixture being supplied from a second supply 9.
- the quantity of binder in the latter mixture exceeds the volume of the spaces between the solid particles.
- the solid particles in the second layer 8 spread out by the doctor device 7 are allowed to settle so that an outer layer 10 consisting substantially of the excess binder and a settled layer 11 of particles with binder therebetween is formed progressively as the layer 8 is distributed.
- the combined layer or external unit 12 of binder and solid particles and the support member 6 enclosed therein is then united with a core or distance material 13, by means of which the outer layer 10 of excess binder is broken.
- the distance material 13 is inserted into the outer layer 10 and into engagement with the support member 6, which is located at a predetermined distance from the outer surface 14 of the sandwich element.
- the distance material 13 absorbs and/or picks up the outer layer 10 of excess binder.
- the quantity of excess binder forming the outer layer 10 is adjusted so that the excess provides for sufficient contact with or adhesion to the located distance material 13, thereby providing an effective connection between the distance material and the external unit 12 of the sandwich element.
- the excess binder also serves to facilitate the distribution of the mixture of binder and solid particles by means of the doctor device 7.
- the other opposite side of the distance material may also be united with a combined layer or external unit 12 of binder and settled particles produced on a base in a manner similar to that described in the aforegoing.
- the support member intended to fix the position of the distance material may consist of a materiai which cmpletely or partially absorbs a possible excess of binder present in the first layer 3.
- the support member may also consist of an absorptive or a non-absorptive material which is permeable to the binder and the solid particles thereby permitting a possible excess of binder present in the first layer 3 to collect at the surface, owing to the fact that solid particles in the second layer are able to pass through the permeable support member when settling.
- Paper, net structures of metal or plastics, gauze ribbon and fabric of glass fibre are examples of suitable material for the support member.
- the liquid resinous binder may, for example, be an isophthalic, phthalic, bisphenolic or other polyester containing a curing agent in the form of, for instance, hexamethylenetetramine.
- a binder which may be used with the present invention are polyvinyl chlorides, polyvinyl acetates, polymers of polyethers, poly urethanes, polyethylenes, combinations of phenol formaldehydes, and synthetic resins of epoxy type.
- the solid particles present in the mixtures may comprise sand, e.g. having an average grain size of 0.15 mm.
- the solid particles may also comprise, for example, stone powder, stone crush, granular slag or metal powder or suitable mixtures of these materials (including sand).
- the distance material is intended to break or penetrate the outer layer of excess binder collected at the surface and may therefore consists of a material which entirely or partially absorbs the excess binder, or may be in the form of a material which picks up the excess binder in spaces in the distance material without absorping the same as shown in FIG. 2.
- suitable distance material include corrugated board and so-called honeycomb board and similar material having a cellular structure.
- As an absorbent distance material it is possible to use a mixture of sand with a deficiency of polyester.
- the base onto which the first layer is spread out may be made, for example, of glass or stainless metal sheet.
- the base is treated with a suitable release agent for facilitate removal of the base from the finished sandwich structure.
- the binder may also be spread out on a base which is intended to be included in the finished sandwich structure.
- a fireproof sandwich element can be produced by spreading out the binder or the particles on gypsum board.
- second layer used in the aforegoing and in the following claims refers to a layer which may be either continuous or discontinuous. Thus, the second layer may also be applied in zones.
- a method of manufacturing sandwich elements comprising the steps of spreading out a first layer of a mixture of solid particles and liquid resinous binder on a base, applying a support member of flexible sheet material on the surface of said first layer, spreading out a second layer of a mixture of solid particles and liquid resinous binder on said first layer and said support member, the quantity of solid particles in said mixture forming said second layer being such that upon subsequently allowing the solid particles to settle and to form a settled layer of particles with binder therebetween, an outer layer of binder in excess of that which settles between the particles is formed atop said settled layer, inserting one side portion of a core board element of open-celled structure into and through said outer layer and into engagement with said support member, and said support member keeping said core board element out of contact with said base, so that some binder of said outer layer enters and is picked up by the cells of said core board element, and finally allowing said binder to harden.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Abstract
1. A METHOD OF MANUFACTURING SANDWICH ELEMENTS, COMPRISING THE STEPS OF SPREADING OUT A FIRST LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON A BASE, APPLYING A SUPPORT MEMBER OF FLEXIBLE SHEET MATERIAL ON THE SURFACE OF SAID FIRST LAYER, SPREADING OUT A SECOND LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON SAID FIRST LAYER AND SAID SUPPORT MEMBER, THE QUANTITY OF SOLID PARTICLES IN SAID MIXTURE FORMING SAID SECOND LAYER BEING SUCH THAT UPON SUBSEQUENTLY ALLOWING THE SOLID PARTICLES TO SETTLE AND TO FORM A SETTLE LAYER OF PARTICLES WITH BINDER THEREBETWEEN, AN OUTER LAYER OF BINDER IN EXCESS OF THAT WHICH SETTLES BETWEEN THE PARTICLES IS FORMED ATOP SAID SETTLED LAYER, INSERTING ONE SIDE PORTION OF A CORE BOARD ELEMENT OF OPEN-CELLED STRUCTURE INTO AND THROUGH SAID OUTER LAYER AND INTO ENGAGEMENT WITH SAID SUPPORT MEMBER, AND SAID SUPPORT MEMBER SEEPING SAID CORE BOARD ELENENT OUT OF CONTACT WITH SAID BASE, SO THAT SOME BINDER OF SAID OUTER LAYER ENTERS AND IS PICKED UP BY THE CELLS OF SAID CORE BOARD ELEMENT, AND FINALLY ALLOWING SAID BINDER TO HARDEN.
Description
Oct. 22, 1974 v K. L.B.JOHANSSON ETAL 3,843,486
METHOD OF MANUFACTURING SANDWIC}! ELEMENTS Filed April 21. 1971 Fig.1
United States Patent US. Cl. 156276 2 Claims ABSTRACT OF THE DISCLOSURE A method of manufacturing sandwich elements by spreading a mixture of solid particles and liquid resinous binder on a base as a layer, applying a flexible sheet on the surface of this first layer, then spreading out a second layer of particles and binder on the sheet and allowing the solid particles to settle and to form a settled layer of particles and an outer layer of binder in excess of that which settles between the particles, inserting a core board element of open celled structure into and through the outer layer and into engagement with said support member, so that some binder is picked up by the cells of said core board element, and finally allowing the binder to harden. The face of a panel so formed is not marked by the core material.
The present invention relates to an improved method of manufacturing sandwich elements which can be used as wall or floor panels in buildings.
There is known to the art a method for manufacturing sandwich elements according to which a mixture of solid particles and liquid resinous binder is spread on a base, the quantity of said binder exceeding the volume of the spaces between the solid particles, whereafter the solid particles are allowed to settle so that a settled layer of particles and an outer layer of excess binder is formed. This outer layer is then broken by inserting therein one side of a distance material, such as a core board element of open celled structure, and then the binder is allowed to harden. The other opposite side of the distance material may also be inserted in an outer layer of excess binder of a similar external unit consisting of a settled layer of solid particles and an outer layer of excess binder.
It has been found when manufacturing such sandwich elements that the distance material is liable to penetrate to different depths in the external unit or units, thereby causing the pattern of the distance material to be visible in patches on the external unit or units of the sandwich elements. Moreover, the degree of adhesion between the external unit or units and the distance material will vary with the depth to which the distance material penetrates into the external unit or units. Another disadvantage is that the thickness of a number of sandwich elements as well as the thickness of one sandwich element varies, owing to the fact that the distance material penetrates into the external unit or units to different depths.
The main object of the present invention is therefore to eliminate these disadvantages. With the improved method of the present invention, a strip-like support member of flexible sheet material intended to regulate the depth to which the distance material penetrates into the external unit or units of the sandwich element is applied in said external unit or units when each of said units is spread out on a base, at a predetermined level from the base. The method comprises the steps of spreading out a first layer of a mixture of solid particles and liquid resinous binder on a base, applying a strip-like support member on the surface of said first layer, spreading out a second layer of a mixture of solid particles and liquid resinous binder on said first layer and said support member, the quantity of "Ice the binder in at least said mixture forming said second layer exceeding the volume of spaces between the solid particles in said mixture forming said second layer, subsequently allowing the solid particles to settle and to form a settled layer of particles with binder therebetween, forming from the excess binder an outer layer, inserting into said outer layer and into engagement with said support member one side of a distance material of cellular structure to at least partially absorb and/or pick up said excess binder, and finally allowing said binder to harden.
The method of the present invention may be used to produce both flat and curved sandwich structures, in which one or both sides of the core element, i.e., the distance material is or are united with a spread-out layer of binder and solid particles in accordance with the improved meth- 0d.
The invention will now be described in detail with reference to the accompanying drawing, in which FIG. 1 illustrates by way of example a system for spreading out an external unit of a sandwich element, and FIG. 2 illustrates a cross section of a part of a sandwich element manufactured in accordance with the invention.
A first layer 3 of the mixture of liquid resinous binder and solid particles is spread out by means of a doctor device 2 on a fiat base 1, which is arranged to move in the direction indicated by the arrow A, the mixture being supplied from a first supply 4. At the same time as the first layer is spread out on the base by the doctor device 2, a strip-like support member shown as a sheet of flexible material 6 is fed from a supply reel 5 between the supply 4 and the doctor device 2 in a manner whereby the support member 6 lies substantially in the surface of the first layer 3. Located behind the doctor device 2, when seen in the direction of movement of the base 1, is a further doctor device 7 which is arranged to spread out a second layer 8 of a mixture of liquid resinous binder and solid particles, this latter mixture being supplied from a second supply 9. The quantity of binder in the latter mixture exceeds the volume of the spaces between the solid particles. The solid particles in the second layer 8 spread out by the doctor device 7 are allowed to settle so that an outer layer 10 consisting substantially of the excess binder and a settled layer 11 of particles with binder therebetween is formed progressively as the layer 8 is distributed.
The combined layer or external unit 12 of binder and solid particles and the support member 6 enclosed therein is then united with a core or distance material 13, by means of which the outer layer 10 of excess binder is broken. The distance material 13 is inserted into the outer layer 10 and into engagement with the support member 6, which is located at a predetermined distance from the outer surface 14 of the sandwich element. The distance material 13 absorbs and/or picks up the outer layer 10 of excess binder. The quantity of excess binder forming the outer layer 10 is adjusted so that the excess provides for sufficient contact with or adhesion to the located distance material 13, thereby providing an effective connection between the distance material and the external unit 12 of the sandwich element. The excess binder also serves to facilitate the distribution of the mixture of binder and solid particles by means of the doctor device 7. It is therefore to advantage to include an excess of binder in the mixture distributed from the supply 4. This latter excess may be collected at the outer layer 10, owing to the fact that the particles in the second layer 8 settle down to the first layer 3, the particles of which also settle, although the latter excess of binder may also be absorbed entirely or partially by the inserted support member 6, which may consist of an absorbent material. The quantity of excess binder in the two mixtures need not necessarily be the same.
As illustrated in FIG. 2, the other opposite side of the distance material may also be united with a combined layer or external unit 12 of binder and settled particles produced on a base in a manner similar to that described in the aforegoing.
The support member intended to fix the position of the distance material may consist of a materiai which cmpletely or partially absorbs a possible excess of binder present in the first layer 3. The support member may also consist of an absorptive or a non-absorptive material which is permeable to the binder and the solid particles thereby permitting a possible excess of binder present in the first layer 3 to collect at the surface, owing to the fact that solid particles in the second layer are able to pass through the permeable support member when settling. Paper, net structures of metal or plastics, gauze ribbon and fabric of glass fibre are examples of suitable material for the support member.
The liquid resinous binder may, for example, be an isophthalic, phthalic, bisphenolic or other polyester containing a curing agent in the form of, for instance, hexamethylenetetramine. Further examples of a binder which may be used with the present invention are polyvinyl chlorides, polyvinyl acetates, polymers of polyethers, poly urethanes, polyethylenes, combinations of phenol formaldehydes, and synthetic resins of epoxy type.
The solid particles present in the mixtures may comprise sand, e.g. having an average grain size of 0.15 mm. The solid particles may also comprise, for example, stone powder, stone crush, granular slag or metal powder or suitable mixtures of these materials (including sand).
The distance material is intended to break or penetrate the outer layer of excess binder collected at the surface and may therefore consists of a material which entirely or partially absorbs the excess binder, or may be in the form of a material which picks up the excess binder in spaces in the distance material without absorping the same as shown in FIG. 2. Examples of suitable distance material include corrugated board and so-called honeycomb board and similar material having a cellular structure. As an absorbent distance material it is possible to use a mixture of sand with a deficiency of polyester.
The base onto which the first layer is spread out may be made, for example, of glass or stainless metal sheet. The base is treated with a suitable release agent for facilitate removal of the base from the finished sandwich structure. The binder may also be spread out on a base which is intended to be included in the finished sandwich structure. For example, a fireproof sandwich element can be produced by spreading out the binder or the particles on gypsum board.
The term second layer used in the aforegoing and in the following claims refers to a layer which may be either continuous or discontinuous. Thus, the second layer may also be applied in zones.
What we claim is:
1. A method of manufacturing sandwich elements, comprising the steps of spreading out a first layer of a mixture of solid particles and liquid resinous binder on a base, applying a support member of flexible sheet material on the surface of said first layer, spreading out a second layer of a mixture of solid particles and liquid resinous binder on said first layer and said support member, the quantity of solid particles in said mixture forming said second layer being such that upon subsequently allowing the solid particles to settle and to form a settled layer of particles with binder therebetween, an outer layer of binder in excess of that which settles between the particles is formed atop said settled layer, inserting one side portion of a core board element of open-celled structure into and through said outer layer and into engagement with said support member, and said support member keeping said core board element out of contact with said base, so that some binder of said outer layer enters and is picked up by the cells of said core board element, and finally allowing said binder to harden.
2. A method according to claim 1, wherein an opposite side portion of said core board element is also inserted into another composite layer formed according to claim 1, after which the binder is allowed to harden on both sides of the core board element simultaneously.
References Cited UNITED STATES PATENTS 1,504,805 8/1924 Borsodi 156-276 2,748,019 5/1956 Schramn 156276 2,831,794 4/ 8 Elemendorf 156-276 DAVID KLEIN, Primary Examiner J. L. GOODROW, Assistant Examiner U.S. Cl. X.R. 156280
Claims (1)
1. A METHOD OF MANUFACTURING SANDWICH ELEMENTS, COMPRISING THE STEPS OF SPREADING OUT A FIRST LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON A BASE, APPLYING A SUPPORT MEMBER OF FLEXIBLE SHEET MATERIAL ON THE SURFACE OF SAID FIRST LAYER, SPREADING OUT A SECOND LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON SAID FIRST LAYER AND SAID SUPPORT MEMBER, THE QUANTITY OF SOLID PARTICLES IN SAID MIXTURE FORMING SAID SECOND LAYER BEING SUCH THAT UPON SUBSEQUENTLY ALLOWING THE SOLID PARTICLES TO SETTLE AND TO FORM A SETTLE LAYER OF PARTICLES WITH BINDER THEREBETWEEN, AN OUTER LAYER OF BINDER IN EXCESS OF THAT WHICH SETTLES BETWEEN THE PARTICLES IS FORMED ATOP SAID SETTLED LAYER, INSERTING ONE SIDE PORTION OF A CORE BOARD ELEMENT OF OPEN-CELLED STRUCTURE INTO AND THROUGH SAID OUTER LAYER AND INTO ENGAGEMENT WITH SAID SUPPORT MEMBER, AND SAID SUPPORT MEMBER SEEPING SAID CORE BOARD ELENENT OUT OF CONTACT WITH SAID BASE, SO THAT SOME BINDER OF SAID OUTER LAYER ENTERS AND IS PICKED UP BY THE CELLS OF SAID CORE BOARD ELEMENT, AND FINALLY ALLOWING SAID BINDER TO HARDEN.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00135854A US3843486A (en) | 1971-04-21 | 1971-04-21 | Method of manufacturing sandwich elements |
DE19712152558 DE2152558A1 (en) | 1971-04-21 | 1971-10-21 | METHOD OF MANUFACTURING SANDWICH ELEMENTS |
NL7114555A NL7114555A (en) | 1971-04-21 | 1971-10-22 | |
GB4921271A GB1411222A (en) | 1971-04-21 | 1971-10-22 | Method of manufacturing sandwich elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00135854A US3843486A (en) | 1971-04-21 | 1971-04-21 | Method of manufacturing sandwich elements |
Publications (1)
Publication Number | Publication Date |
---|---|
US3843486A true US3843486A (en) | 1974-10-22 |
Family
ID=22470024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00135854A Expired - Lifetime US3843486A (en) | 1971-04-21 | 1971-04-21 | Method of manufacturing sandwich elements |
Country Status (4)
Country | Link |
---|---|
US (1) | US3843486A (en) |
DE (1) | DE2152558A1 (en) |
GB (1) | GB1411222A (en) |
NL (1) | NL7114555A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4208228A (en) * | 1978-07-10 | 1980-06-17 | Lennart Johansson | Method of making building panel structure |
WO1998008640A2 (en) * | 1996-08-28 | 1998-03-05 | Nicholas Mcmahon | Structure comprising honeycomb core and outer skin and method for its fabrication |
NL1009856C2 (en) * | 1998-08-13 | 2000-02-15 | Rudolf Peter Ammer | Translucent laminate construction material, comprises honeycomb core embedded in thermoset material layers on either side |
EP1319503A1 (en) * | 2001-12-17 | 2003-06-18 | Bayer Ag | Composite parts of outer layers and polyurethane sandwich-materials and their production |
WO2005092585A1 (en) * | 2004-02-27 | 2005-10-06 | Eurocopter | Fabric prepreg by two distinct thermosetting matrixes |
WO2006079860A1 (en) * | 2005-01-31 | 2006-08-03 | Kompozitor Mûanyagipari Fejlesztõ Kft. | Structural element, especially laminated panel and process for the manufacturing of such structural element |
WO2013058703A1 (en) * | 2011-10-18 | 2013-04-25 | Lpi Light Panel Innovation Ab | Method of manufacturing a sandwich material board |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149719A (en) * | 1983-11-14 | 1985-06-19 | American Standard Inc | A method of bonding a laminated assembly |
US4664955A (en) * | 1986-03-21 | 1987-05-12 | Swiss Aluminium Ltd. | Natural stone facing composite laminate |
CN111155739A (en) * | 2020-01-21 | 2020-05-15 | 宜兴市尧龙竹木制品有限公司 | Composite floor and manufacturing process thereof |
-
1971
- 1971-04-21 US US00135854A patent/US3843486A/en not_active Expired - Lifetime
- 1971-10-21 DE DE19712152558 patent/DE2152558A1/en active Pending
- 1971-10-22 GB GB4921271A patent/GB1411222A/en not_active Expired
- 1971-10-22 NL NL7114555A patent/NL7114555A/xx unknown
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4208228A (en) * | 1978-07-10 | 1980-06-17 | Lennart Johansson | Method of making building panel structure |
WO1998008640A2 (en) * | 1996-08-28 | 1998-03-05 | Nicholas Mcmahon | Structure comprising honeycomb core and outer skin and method for its fabrication |
WO1998008640A3 (en) * | 1996-08-28 | 1998-06-04 | Nicholas Mcmahon | Structure comprising honeycomb core and outer skin and method for its fabrication |
CN1081502C (en) * | 1996-08-28 | 2002-03-27 | 尼古拉斯·麦克马洪 | Structure comprising honeycomb core and outer skin and method for its fabrication |
NL1009856C2 (en) * | 1998-08-13 | 2000-02-15 | Rudolf Peter Ammer | Translucent laminate construction material, comprises honeycomb core embedded in thermoset material layers on either side |
EP1319503A1 (en) * | 2001-12-17 | 2003-06-18 | Bayer Ag | Composite parts of outer layers and polyurethane sandwich-materials and their production |
US6761953B2 (en) | 2001-12-17 | 2004-07-13 | Bayer Aktiengesellschaft | Laminated parts made of outer layers and polyurethane sandwich materials and their production |
CN1321816C (en) * | 2001-12-17 | 2007-06-20 | 拜尔公司 | Laminated part made of external layers and polyurethane sandwich material and producing method thereof |
WO2005092585A1 (en) * | 2004-02-27 | 2005-10-06 | Eurocopter | Fabric prepreg by two distinct thermosetting matrixes |
WO2006079860A1 (en) * | 2005-01-31 | 2006-08-03 | Kompozitor Mûanyagipari Fejlesztõ Kft. | Structural element, especially laminated panel and process for the manufacturing of such structural element |
WO2013058703A1 (en) * | 2011-10-18 | 2013-04-25 | Lpi Light Panel Innovation Ab | Method of manufacturing a sandwich material board |
Also Published As
Publication number | Publication date |
---|---|
DE2152558A1 (en) | 1973-04-26 |
NL7114555A (en) | 1973-04-25 |
GB1411222A (en) | 1975-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3843486A (en) | Method of manufacturing sandwich elements | |
US4094380A (en) | Multi layer sound-proofing structure | |
US3874980A (en) | Composite foam panel with fibrous facing sheets | |
RU96108944A (en) | ABRASIVE PRODUCTS IN THE COMPOSITION OF WHICH A FIXING COATING APPLIED BY LAMINATION IS INCLUDED | |
DE2845700A1 (en) | ROOF COVER FILM, PARTICULARLY ROOF PAPER | |
CN105143571B (en) | Composite multi-story building panel with enhanced sound damping | |
DE69927895T2 (en) | Radio wave absorbing noncombustible honeycomb material and radio wave absorber using this material | |
SE8004007L (en) | BUILDING MATERIAL DISC WITH A CORE OF CEMENTARY MATERIAL, AS GYPS, AND PROCEDURE FOR PRODUCING THEREOF | |
SE445626B (en) | BUILDING AND CONSTRUCTION ELEMENTS AND PROCEDURE FOR ITS MANUFACTURING | |
EP2994283B1 (en) | Dry mortar panel and method for the production thereof | |
US3182747A (en) | Sound absorbing micro-porous wall panel structures | |
US4386676A (en) | Sound-damping mat or drape | |
DE3508933C2 (en) | ||
US3308462A (en) | Magnetic laminate | |
GB1216171A (en) | Method of manufacturing flat or curved units, wall panels or the like | |
CA2114620A1 (en) | Inorganic Constructional Board and Method of Manufacturing the Same | |
US4005954A (en) | Production of plaster floors by the flooding process | |
DE3147174A1 (en) | Sound-absorbing wall panelling or wall panelling element | |
IL37990A (en) | Manufacture of sandwich-like building elements | |
CA2067391A1 (en) | Liquid absorbent block | |
JPS6138950Y2 (en) | ||
EP2386697A2 (en) | Thermal insulation panels, thermal insulation systems comprising such thermal insulation panels and method for producing such thermal insulation panels | |
DE102006002541B4 (en) | Composite with visible fabric layer and manufacturing process | |
JPH0784354B2 (en) | Concrete curing pad and curing method using this concrete curing pad | |
FR2429872A1 (en) | Soil coverings incorporating nonwoven polyester matting - to prevent soil erosion or leaching out of muds, clays etc. |