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1. WO2000043444 - PROCESS AND APPARATUS FOR PRODUCING FOAM AND FOAM BLOCKS AND BOARDS PRODUCED

Publication Number WO/2000/043444
Publication Date 27.07.2000
International Application No. PCT/ES2000/000002
International Filing Date 05.01.2000
Chapter 2 Demand Filed 05.05.2000
IPC
B29C 44/20 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
B29C 44/34 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
34Component parts, details or accessories; Auxiliary operations
B29C 44/50 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
34Component parts, details or accessories; Auxiliary operations
36Feeding the material to be shaped
46into an open space or onto moving surfaces, i.e. to make articles of indefinite length
50using pressure difference, e.g. by extrusion or by spraying
C08J 9/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
9Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
04using blowing gases generated by a previously added blowing agent
12by a physical blowing agent
CPC
B29C 44/0484
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
02for articles of definite length, i.e. discrete articles
04consisting of at least two parts of chemically or physically different materials, e.g. having different densities
0484by having different solubility of the foaming agent
B29C 44/3419
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
34Auxiliary operations
3415Heating or cooling
3419Quick cooling
B29C 44/3442
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
34Auxiliary operations
3442Mixing, kneading or conveying the foamable material
C08J 2201/03
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2201Foams characterised by the foaming process
02characterised by mechanical pre- or post-treatments
03Extrusion of the foamable blend
C08J 2203/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2203Foams characterized by the expanding agent
06CO2, N2 or noble gases
C08J 2203/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2203Foams characterized by the expanding agent
12Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
Applicants
  • POLIGLAS, S.A. [ES/ES]; Ctra. de Barcelona, 66 E-08210 Barberà del Vallès, ES (AllExceptUS)
  • LADERA SAINZ, Jesús [ES/ES]; ES (UsOnly)
  • FIGUERAS NADAL, Laura [ES/ES]; ES (UsOnly)
Inventors
  • LADERA SAINZ, Jesús; ES
  • FIGUERAS NADAL, Laura; ES
Agents
  • REVENGA, Josep, Lluís; Aguilar Revenga Consell de Cent, 415 E-08009 Barcelona, ES
Priority Data
P 990009920.01.1999ES
Publication Language Spanish (ES)
Filing Language Spanish (ES)
Designated States
Title
(EN) PROCESS AND APPARATUS FOR PRODUCING FOAM AND FOAM BLOCKS AND BOARDS PRODUCED
(ES) PROCEDIMIENTO E INSTALACION PARA PRODUCIR ESPUMA, Y BLOQUES Y PLACAS DE ESPUMA PRODUCIDOS
(FR) PROCEDE ET INSTALLATION POUR PRODUIRE DES MOUSSES, ET BLOCS ET PLAQUES DE MOUSSE PRODUITS
Abstract
(EN)
CO2 is used as foaming agent and a first and a second control agent are injected into the plastified mixture. The first agent is used to dissolve and refrigerate the plastified mixture and consists of ethanol while the second agent is solely used to refrigerate the plastified mixture and consists of H2O2. A sufficient amount of ethanol is injected to achieve maximum CO2 dissolution in the plastified mixture. The amount of H2O2 injected is such that the foaming caused by the ethanol is kept to a minimum. The apparatus includes devices for conditioning and feeding the foaming agent and the control agents to the plastified mixture. The blocks and boards exhibit dimensional stability and good self-extinguishing characteristics.
(ES)
Se utiliza CO2 como agente espumante y se inyectan en la mezcla plastificada un primer agente y un segundo agente de control, estando destinado el primero a disolver y refrigerar la mezcla plastificada y estando constituido por etanol, mientras que el segundo agente de control está destinado solamente a refrigerar la mezcla plastificada y está constituido por H2O2, siendo la cantidad inyectada de etanol justamente la suficiente para alcanzar la máxima disolución posible de CO2 en la mezcla plastificada y siendo la cantidad inyectada de H2O2 tal que la espumación provocada por el etanol se mantenga mínima. La instalación incluye disposiciones para el acondicionado y la alimentación del agente espumante y de los agentes de control en la mezcla plastificada. Los bloques y placas presentan estabilidad dimensional y buenas características de autoextinción.
(FR)
On utilise du CO2 comme agent moussant avant d'injecter dans le mélange plastifié un premier agent et un deuxième agent de contrôle. Le premier agent a pour but de dissoudre et de refroidir le mélange et est constitué d'éthanol. Le deuxième agent a pour objet de refroidir uniquement le mélange plastifié et est constitué de H2O2. La quantité d'éthanol injectée est suffisante pour assurer la dissolution maximale du CO2 dans le mélange plastifié. La quantité d'H2O2 est suffisante pour assurer le maintien à une valeur minimale du moussage provoqué par l'éthanol. L'installation comprend des systèmes de conditionnement et d'alimentation en agent moussant et en agent de contrôle dans le mélange plastifié.Les blocs et les plaques présentent une bonne stabilité dimensionnelle et de bonnes caractéristiques d'auto-extinction.
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