ES8101990A1 - Procedimiento y aparato para la fabricacion de articulos de espuma de poliuretano flexible - Google Patents

Procedimiento y aparato para la fabricacion de articulos de espuma de poliuretano flexible

Info

Publication number
ES8101990A1
ES8101990A1 ES492994A ES492994A ES8101990A1 ES 8101990 A1 ES8101990 A1 ES 8101990A1 ES 492994 A ES492994 A ES 492994A ES 492994 A ES492994 A ES 492994A ES 8101990 A1 ES8101990 A1 ES 8101990A1
Authority
ES
Spain
Prior art keywords
manufacture
polyurethane foam
flexible polyurethane
foam articles
reduced pressure
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
Application number
ES492994A
Other languages
English (en)
Other versions
ES492994A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10506248&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8101990(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES492994A0 publication Critical patent/ES492994A0/es
Publication of ES8101990A1 publication Critical patent/ES8101990A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
    • 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
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C37/006—Degassing moulding material or draining off gas during moulding
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PROCEDIMIENTO Y APARATO PARA LA FABRICACION DE ARTICULOS DE ESPUMA DE POLIURETANO FLEXIBLE. EN UN MOLDE SE INTRODUCE UNA MEZCLA FORMADORA DE ESPUMA DE POLIURETANO FLEXIBLE, A BASE DE DIFENILMETANO DISOCIANATO (MDI) POLIMERICO Y UNA COMPOSICION DE POLIOL, QUE ESPUMA BAJO UNA PRESION A LA ATMOSFERICA Y ENDURECE. PARA MOLDEAR EN SERIE ARTICULOS DE ESPUMA SE INTRODUCE LA MEZCLA EN UN PRIMER MOLDE (B) CONECTADO A UN SEGUNDO MOLDE (A) QUE CONTIENE UN ARTICULO DE ESPUMA FLEXIBLE YA FORMADO, ESTANDO AMBOS A PRESION INFERIOR A LA ATMOSFERICA. DURANTE EL ESPUMADO SE MANTIENE EL MOLDE (B) A PRESION INFERIOR A LA ATMOSFERICA, POR MEDIO DE LA BOMBA DE VACIO (3), Y SE VENTILA EL MOLDE (A) SACANDO EL ARTICULO DE ESPUMA YA FORMADO EN EL. A CONTINUACION SE CONECTA EL MOLDE (B) AL (A), EN EL QUE SE HA INTRODUCIDO MAS MEZCLA ESPUMANTE, REPITIENDOSE EL PROCESO.
ES492994A 1979-07-02 1980-07-01 Procedimiento y aparato para la fabricacion de articulos de espuma de poliuretano flexible Expired ES8101990A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7922988 1979-07-02

Publications (2)

Publication Number Publication Date
ES492994A0 ES492994A0 (es) 1980-12-16
ES8101990A1 true ES8101990A1 (es) 1980-12-16

Family

ID=10506248

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492994A Expired ES8101990A1 (es) 1979-07-02 1980-07-01 Procedimiento y aparato para la fabricacion de articulos de espuma de poliuretano flexible

Country Status (3)

Country Link
EP (1) EP0023749B1 (es)
DE (1) DE3064017D1 (es)
ES (1) ES8101990A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000297A1 (en) * 1980-07-15 1982-02-04 J Blackwell Production of synthetic plastics foam material
GB8314010D0 (en) * 1983-05-20 1983-06-29 Unifoam Ag Polymeric foam
CA1290895C (en) * 1986-12-25 1991-10-15 Sadao Kumasaka Method and an apparatus for producing polyurethane foam
BE1004588A3 (nl) * 1990-09-14 1992-12-15 Recticel Werkwijze voor het vervaardigen van soepel polyurethaanschuim.
US5182313A (en) * 1992-01-09 1993-01-26 Scott Carson Method and apparatus for forming articles made of polyurethane
US5456586A (en) 1993-07-07 1995-10-10 Carson; Scott Apparatus for manufacturing articles made of polyurethane
DE19701728C2 (de) * 1997-01-20 1998-12-10 Hennecke Gmbh Verfahren und Vorrichtung zur Herstellung geschäumter Polyurethan-Formkörper
DE10258546B4 (de) * 2002-12-14 2005-03-10 Stankiewicz Gmbh Verfahren und Vorrichtung zur Herstellung geschäumter Polyurethan-Formkörper
DE102004028803A1 (de) * 2004-06-15 2006-01-12 Stankiewicz Gmbh Verfahren und Vorrichtung zur Herstellung hinterschäumter luftdurchlässiger textiler Produkte
CN110171093B (zh) * 2019-06-20 2021-04-16 滁州益佳模具设备制造有限公司 一种均匀上料混合注射的生产用发泡注塑模具

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613719B2 (de) * 1976-03-31 1980-09-11 Krauss-Maffei Ag, 8000 Muenchen Vorrichtung zum Herstellen von Formkörpern aus einem Gemisch von Kunststoffkomponenten
DE2647482A1 (de) * 1976-10-21 1978-04-27 Bayer Ag Verfahren zur herstellung von kalthaertenden, urethangruppen aufweisenden schaumstoffen

Also Published As

Publication number Publication date
EP0023749B1 (en) 1983-07-06
DE3064017D1 (en) 1983-08-11
ES492994A0 (es) 1980-12-16
EP0023749A1 (en) 1981-02-11

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