FR2223169A2 - Foam moulding - using cooled mixture with increased catalyst - Google Patents

Foam moulding - using cooled mixture with increased catalyst

Info

Publication number
FR2223169A2
FR2223169A2 FR7311769A FR7311769A FR2223169A2 FR 2223169 A2 FR2223169 A2 FR 2223169A2 FR 7311769 A FR7311769 A FR 7311769A FR 7311769 A FR7311769 A FR 7311769A FR 2223169 A2 FR2223169 A2 FR 2223169A2
Authority
FR
France
Prior art keywords
cooled mixture
increased catalyst
mixture
foam moulding
catalyst
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.)
Pending
Application number
FR7311769A
Other languages
French (fr)
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.)
PEUGEOT and RENAULT
Original Assignee
PEUGEOT and RENAULT
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
Application filed by PEUGEOT and RENAULT filed Critical PEUGEOT and RENAULT
Priority to FR7311769A priority Critical patent/FR2223169A2/en
Priority to IT2302273A priority patent/IT983890B/en
Priority to JP4144573A priority patent/JPS4918960A/ja
Priority to DE19732318794 priority patent/DE2318794A1/en
Publication of FR2223169A2 publication Critical patent/FR2223169A2/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B29C44/3484—Stopping the foaming reaction until the material is heated or re-heated
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

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

Abstract

Designed for moulding polyurethane foam automobile components, the mixture's catalyst is increased up to 3 times to accelerate the chemical reaction time, while cooling the mixture to about 0 degree C ensures that the delay time between mould closing and the start of foaming remains unchanged. Method increases process speeds without reducing product quality.
FR7311769A 1972-04-14 1973-04-02 Foam moulding - using cooled mixture with increased catalyst Pending FR2223169A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7311769A FR2223169A2 (en) 1973-04-02 1973-04-02 Foam moulding - using cooled mixture with increased catalyst
IT2302273A IT983890B (en) 1972-04-14 1973-04-13 MOLDING PROCESS FOR ALVEOLAR PIECES IN PARTICULAR OF EXPANDED NET POLYU
JP4144573A JPS4918960A (en) 1972-04-14 1973-04-13
DE19732318794 DE2318794A1 (en) 1972-04-14 1973-04-13 Foam moulding - using cooled mixture with increased catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7311769A FR2223169A2 (en) 1973-04-02 1973-04-02 Foam moulding - using cooled mixture with increased catalyst

Publications (1)

Publication Number Publication Date
FR2223169A2 true FR2223169A2 (en) 1974-10-25

Family

ID=9117248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7311769A Pending FR2223169A2 (en) 1972-04-14 1973-04-02 Foam moulding - using cooled mixture with increased catalyst

Country Status (1)

Country Link
FR (1) FR2223169A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006381A1 (en) * 1978-06-13 1980-01-09 INDUSTRIES ET TECHNIQUES D'AMEUBLEMENT Société dite: Device for moulding foamed plastic articles
DE3535151A1 (en) * 1985-10-02 1987-04-09 Bernd Brandes METHOD AND DEVICE FOR PRODUCING A TEMPERATURE-INSULATED PIPE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006381A1 (en) * 1978-06-13 1980-01-09 INDUSTRIES ET TECHNIQUES D'AMEUBLEMENT Société dite: Device for moulding foamed plastic articles
DE3535151A1 (en) * 1985-10-02 1987-04-09 Bernd Brandes METHOD AND DEVICE FOR PRODUCING A TEMPERATURE-INSULATED PIPE

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