FR2114992A1 - Moulding heat-expandable thermoplastic - Google Patents

Moulding heat-expandable thermoplastic

Info

Publication number
FR2114992A1
FR2114992A1 FR7041591A FR7041591A FR2114992A1 FR 2114992 A1 FR2114992 A1 FR 2114992A1 FR 7041591 A FR7041591 A FR 7041591A FR 7041591 A FR7041591 A FR 7041591A FR 2114992 A1 FR2114992 A1 FR 2114992A1
Authority
FR
France
Prior art keywords
beads
layer
expandable thermoplastic
moulding heat
heat
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.)
Granted
Application number
FR7041591A
Other languages
French (fr)
Other versions
FR2114992B1 (en
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.)
CAPLAN Ltd
Original Assignee
CAPLAN 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
Priority to AU21958/70A priority Critical patent/AU455570B2/en
Priority to DE19702054843 priority patent/DE2054843C3/en
Priority to NL7016372A priority patent/NL7016372A/xx
Application filed by CAPLAN Ltd filed Critical CAPLAN Ltd
Priority to FR7041591A priority patent/FR2114992A1/en
Publication of FR2114992A1 publication Critical patent/FR2114992A1/en
Application granted granted Critical
Publication of FR2114992B1 publication Critical patent/FR2114992B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C08J9/228—Forming foamed products
    • C08J9/232—Forming foamed products by sintering expandable particles
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0492—Devices for feeding the different materials
    • 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
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B5/00—Hulls characterised by their construction of non-metallic material
    • B63B5/24—Hulls characterised by their construction of non-metallic material made predominantly of plastics
    • 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
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3067—Ships
    • B29L2031/307—Hulls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/771—Seats

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Molding Of Porous Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Moulding heat-expandable thermoplastic. Process comprises confining heat-expandable beads of the material within a mould and then heating the beads so as to fuse them together where the beads are deposited in the mould in two or more layers, the beads of one layer having no pre-expansior or being pre-expanded less than the beads in another layer so that the part of the article formed by the one layer of beads is denser and stronger than the part of the article formed by the other layer of beads.
FR7041591A 1970-11-19 1970-11-19 Moulding heat-expandable thermoplastic Granted FR2114992A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU21958/70A AU455570B2 (en) 1970-11-19 1970-11-06 Moulding heat-expandable thermoplastic material
DE19702054843 DE2054843C3 (en) 1970-11-07 Method and device for the production of objects from foamed plastic
NL7016372A NL7016372A (en) 1970-11-19 1970-11-09
FR7041591A FR2114992A1 (en) 1970-11-19 1970-11-19 Moulding heat-expandable thermoplastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7041591A FR2114992A1 (en) 1970-11-19 1970-11-19 Moulding heat-expandable thermoplastic

Publications (2)

Publication Number Publication Date
FR2114992A1 true FR2114992A1 (en) 1972-07-07
FR2114992B1 FR2114992B1 (en) 1975-03-21

Family

ID=9064415

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041591A Granted FR2114992A1 (en) 1970-11-19 1970-11-19 Moulding heat-expandable thermoplastic

Country Status (3)

Country Link
AU (1) AU455570B2 (en)
FR (1) FR2114992A1 (en)
NL (1) NL7016372A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002876A1 (en) * 1983-01-31 1984-08-02 Saplest Method for manufacturing an alveolar synthetic material part and parts obtained thereby

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002876A1 (en) * 1983-01-31 1984-08-02 Saplest Method for manufacturing an alveolar synthetic material part and parts obtained thereby
FR2540037A1 (en) * 1983-01-31 1984-08-03 Lalloz Guy PROCESS FOR MANUFACTURING A COMPOSITE WORKPIECE OF ALVEOLARY SYNTHETIC MATERIAL AND OBTAINED PIECES
GB2146945A (en) * 1983-01-31 1985-05-01 Guy Lalloz Method for manufacturing an alveolar synthetic material part and parts obtained thereby

Also Published As

Publication number Publication date
NL7016372A (en) 1972-05-12
DE2054843B2 (en) 1976-03-11
FR2114992B1 (en) 1975-03-21
AU455570B2 (en) 1974-11-12
AU2195870A (en) 1972-05-11
DE2054843A1 (en) 1972-05-10

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Legal Events

Date Code Title Description
ST Notification of lapse