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1. WO1986003505 - FIBRE-REINFORCED FOAM- OR CELLULAR BODIES

Publication Number WO/1986/003505
Publication Date 19.06.1986
International Application No. PCT/SE1985/000500
International Filing Date 04.12.1985
IPC
B29C 44/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
44Shaping by internal pressure generated in the material, e.g. swelling or foaming
20for articles of indefinite length
32Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
C04B 28/14 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
14containing calcium sulfate cements
C04B 28/26 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
24containing alkyl ammonium or alkali metal silicates; containing silica sols
26Silicates of the alkali metals
C04B 30/02 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
30Compositions for artificial stone, not containing binders
02containing fibrous materials
C08L 1/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1Compositions of cellulose, modified cellulose, or cellulose derivatives
02Cellulose; Modified cellulose
D21H 27/38 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
27Special paper not otherwise provided for, e.g. made by multi-step processes
30Multi-ply
38at least one of the sheets having a fibrous composition differing from that of other sheets
CPC
B29C 44/326
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
44Shaping by internal pressure generated in the material, e.g. swelling or foaming ; ; Producing porous or cellular expanded plastics articles
20for articles of indefinite length
32Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
326Joining the preformed parts, e.g. to make flat or profiled sandwich laminates
B29K 2003/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2003Use of starch or derivatives as moulding material
B29K 2105/26
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2105Condition, form or state of moulded material ; or of the material to be shaped
26Scrap ; or recycled material
B29K 2711/12
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING 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
2711Use of natural products or their composites, not provided for in groups ; B29K2601/00 - B29K2709/00,; for preformed parts, e.g. for inserts
12Paper, e.g. cardboard
C04B 28/14
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
14containing calcium sulfate cements
C04B 28/26
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
24containing alkyl, ammonium or metal silicates; containing silica sols
26Silicates of the alkali metals
Applicants
  • LJUNGBO, Sven [SE]/[SE]
Inventors
  • LJUNGBO, Sven
Priority Data
8406134-004.12.1984SE
Publication Language English (EN)
Filing Language Swedish (SV)
Designated States
Title
(EN) FIBRE-REINFORCED FOAM- OR CELLULAR BODIES
(FR) CORPS CELLULAIRES OU EN MOUSSE RENFORCES AVEC DES FIBRES
Abstract
(EN)
Fibre-reinforced foam bodies, especially such with a high fibre content (15 - 30 per cent by weight or more) are produced by dispersing fibres in a liquid, generally water, together with tensides and gases or gas-emitting agents, fillers etc. and by in addition adding substances which increase the viscosity of the liquid so that at least during the foaming process the latter amounts to not less than 40 cP. If use is made of gas-emitting substances or gases dissolved in the liquid the foaming process is triggered by the addition of suitable reagents or by increasing the temperature or by reducing the pressure, whereupon the foaming or foamed stock is transferred to suitable moulds or to a conveyor belt and dried so as to produce solid foam bodies for e.g. transport packaging, insulating material, elastic stuffings etc. Alternatively the foaming or foamed stock can prior to drying be combined with paper or other sheets or plates so as to form laminates which can be used as corrugated board, construction elements, insulating mats etc. A particularly low density and a fine and even pore structure can be achieved by mixing into the fibre suspension soluble or capable of intense expansion in the dispersion liquid and decomprising in addition both highly hydrophile and highly hydrophobic groups.
(FR)
Des corps en mousse renforcés avec des fibres, surtout ceux ayant une teneur élevée en fibres (15 à 30 pour cent en poids, ou d'avantage) sont produits en dispersant des fibres dans un liquide, en général de l'eau, avec des agents tensio-actifs et des gaz ou des agents générateurs de gaz, des charges, etc et en ajoutant en outre des substances qui augmentent la viscosité du liquide pour que pendant le processus de moussage ce dernier s'élève au moins à 40cP. Si l'on utilise des substances génératrices de gaz ou des gaz dissous dans le liquide, le processus de moussage est déclenché par l'addition de réactifs appropriés, par l'augmentation de la température ou par la réduction de la pression. La pâte moussante ou moussée est ensuite transférée dans des moules appropriés ou à une courroie de transport et séchée pour produire des corps solides en mousse, par exemple, pour emballages de transport, matériau isolant, remplissage élastique, etc. La pâte moussante ou moussée peut également être combinée avec du papier ou d'autres feuilles ou plaques, avant le séchage, pour former des laminés pouvant être utilisés comme tôle ondulée, éléments de construction, paillassons isolants, etc. Une structure poreuse fine et uniforme, de densité particulièrement basse, peut être obtenue en mélangeant avec les fibres une suspension soluble ou susceptible d'une très grande dilatation dans le liquide de dispersion, comprenant en outre des groupes extrêmement hydrophiles et des groupes extrêmement hydrophobes.
Also published as
FI872448
Latest bibliographic data on file with the International Bureau