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1. WO2016200858 - METHODS FOR PREPARING OPEN-CELLED POLYURETHANE FOAMS, SYSTEMS FOR USE THEREIN, AND OPEN-CELLED POLYURETHANE FOAMS PRODUCED THEREBY

Publication Number WO/2016/200858
Publication Date 15.12.2016
International Application No. PCT/US2016/036310
International Filing Date 08.06.2016
IPC
C08G 18/48 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
B29C 44/34 2006.1
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
C08G 18/76 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
70characterised by the isocyanates or isothiocyanates used
72Polyisocyanates or polyisothiocyanates
74cyclic
76aromatic
CPC
B29C 44/02
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
B29C 44/3415
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
B29C 44/40
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
36Feeding the material to be shaped
38into a closed space, i.e. to make articles of definite length
40by gravity, e.g. by casting
B29C 44/588
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
58Moulds
588with means for venting, e.g. releasing foaming gas
B29K 2075/00
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
2075Use of ; PU, i.e.; polyureas or polyurethanes ; or derivatives thereof; , as moulding material
B29K 2105/0014
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
0005containing compounding ingredients
0014Catalysts
Applicants
  • COVESTRO LLC [US]/[US]
Inventors
  • LEE, Bin
  • BARLEY, Paul O.
Agents
  • PALLADINO, Donald R.
Priority Data
14/733,11608.06.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHODS FOR PREPARING OPEN-CELLED POLYURETHANE FOAMS, SYSTEMS FOR USE THEREIN, AND OPEN-CELLED POLYURETHANE FOAMS PRODUCED THEREBY
(FR) PROCÉDÉS POUR PRÉPARER DES MOUSSES DE POLYURÉTHANE À ALVÉOLES OUVERTES, SYSTÈMES DESTINÉS À Y ÊTRE UTILISÉS ET MOUSSES DE POLYURÉTHANE À ALVÉOLES OUVERTES AINSI PRODUITES
Abstract
(EN)
Disclosed are methods and systems for preparing open-celled polyurethane foams by a discontinuous box foam process in which (a) a polyurethane foam-forming composition is deposited into a container having a gas-permeable base and (b) the polyurethane-foam forming composition is allowed to form an open-celled polyurethane foam in the container. In these methods and systems, the gas-permeable base is heated before, during, and/or after step (a) and heating is continued during at least a portion of step (b).
(FR)
L'invention concerne des procédés et des systèmes pour préparer des mousses de polyuréthane à alvéoles ouvertures par un procédé discontinu de moussage en caisson dans lequel (a) une composition formant une mousse de polyuréthane est déposée dans un récipient présentant une base perméable au gaz et (b) on laisse la composition formant une mousse de polyuréthane former une mousse de polyuréthane à alvéoles ouvertes dans le récipient. Dans ces procédés et ces systèmes, la base perméable au gaz est chauffée avant, pendant et/ou après l'étape (a) et le chauffage est poursuivi pendant au moins une partie de l'étape (b).
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