GB1401846A - Process for pre-expanded rigid plastics foam material - Google Patents

Process for pre-expanded rigid plastics foam material

Info

Publication number
GB1401846A
GB1401846A GB3017272A GB3017272A GB1401846A GB 1401846 A GB1401846 A GB 1401846A GB 3017272 A GB3017272 A GB 3017272A GB 3017272 A GB3017272 A GB 3017272A GB 1401846 A GB1401846 A GB 1401846A
Authority
GB
United Kingdom
Prior art keywords
foam
rigid plastics
cooling
june
foam material
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
GB3017272A
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.)
WASSER SAND FORSCHUNG und VERT
Original Assignee
WASSER SAND FORSCHUNG und VERT
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 WASSER SAND FORSCHUNG und VERT filed Critical WASSER SAND FORSCHUNG und VERT
Publication of GB1401846A publication Critical patent/GB1401846A/en
Expired 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
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Laminated Bodies (AREA)

Abstract

1401846 Modifying rigid plastics foams WASSER - SAND - FORSHUNG & VERTRIEBS GmbH 28 June 1972 [29 June 1971] 30172/72 Heading C3C A pre-expanded rigid plastics foam made of individual cellular particles is modified by simultaneously heating and compressing the foam and then subjecting the hot compressed foam to shock cooling (i.e. rapid and forced withdrawal of heat) under compression whereby the surfaces of the foam are hardened. In the example a foamed sheet is placed in a heating chamber 1, having a heating plate 2, where it is heated and pressed, the sheet is then placed in a cooling-chamber 4, having cooling plates, 5, where it is shock cooled under pressure.
GB3017272A 1971-06-29 1972-06-28 Process for pre-expanded rigid plastics foam material Expired GB1401846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712132234 DE2132234C3 (en) 1971-06-29 1971-06-29 Process for improving the physical properties of fully expanded rigid foam bodies which are built up from individual cellular particles

Publications (1)

Publication Number Publication Date
GB1401846A true GB1401846A (en) 1975-07-30

Family

ID=5812104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3017272A Expired GB1401846A (en) 1971-06-29 1972-06-28 Process for pre-expanded rigid plastics foam material

Country Status (13)

Country Link
AT (1) AT321565B (en)
BE (1) BE785519A (en)
CA (1) CA984568A (en)
CH (1) CH540112A (en)
DE (1) DE2132234C3 (en)
DK (1) DK133861C (en)
ES (1) ES404168A1 (en)
FI (1) FI52538C (en)
FR (1) FR2143726B1 (en)
GB (1) GB1401846A (en)
IT (1) IT956908B (en)
NL (1) NL7208787A (en)
SE (1) SE389637B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5736075A (en) * 1996-10-22 1998-04-07 C.J. Associates, Ltd. Method of forming a molded product using a freezing step

Also Published As

Publication number Publication date
FI52538C (en) 1977-10-10
IT956908B (en) 1973-10-10
DE2132234B2 (en) 1974-02-07
DK133861C (en) 1976-12-27
DE2132234A1 (en) 1973-03-01
DK133861B (en) 1976-08-02
CH540112A (en) 1973-08-15
ES404168A1 (en) 1975-06-01
FR2143726B1 (en) 1975-03-07
FR2143726A1 (en) 1973-02-09
CA984568A (en) 1976-03-02
SE389637B (en) 1976-11-15
BE785519A (en) 1972-12-28
NL7208787A (en) 1973-01-03
FI52538B (en) 1977-06-30
DE2132234C3 (en) 1974-09-05
AT321565B (en) 1975-04-10

Similar Documents

Publication Publication Date Title
US2899708A (en) Modification and control of plastic
GB1069029A (en) Method of modifying a foamed article
US3131426A (en) Apparatus for curing foamed materials
GB820906A (en) Improvements in or relating to mouldable thermoplastic material
GB1251414A (en)
US3119147A (en) Apparatus for producing flexible styrene polymers
GB1401846A (en) Process for pre-expanded rigid plastics foam material
US3504064A (en) Method of compressing and subsequently re - expanding urea - formaldehyde foam
GB1168273A (en) Method of and apparatus for Producing Embossed Thermoplastic Sheet
ES348143A2 (en) Process for producing a cellular product from expanded pearls of synthetic resin
ES8303971A1 (en) Process for the production of a continuous sheet of foamed synthetic, thermoplastic polymer by extrusion.
GB1077595A (en) Process for obtaining pearls of expanded polystyrene
US3368009A (en) Process for molding synthetic expanded thermoplastic material
ES373817A1 (en) Process for controlling the amount of densification in polyurethane foams and products produced thereby
ES449383A1 (en) A thermoconformation device for configuring molded pieces in bands or plates of thermoplastic material. (Machine-translation by Google Translate, not legally binding)
US2052899A (en) Preextended cork
US2158083A (en) Process of manufacturing expanded rubber
GB853194A (en) Process for the production of shaped parts of plasticized polyolefins
GB701066A (en) Production of closed cell cellular bodies from thermo-plastic masses
SU85866A1 (en) The method of manufacture of foams in the form of sheets
GB1065994A (en) Crushed polyurethane foam and method of making same
GB957566A (en) Process for the manufacture of shaped objects of foamed glass
FR2394385A1 (en) Appts. for pre:expanding polymeric beads - in which the beads are swept around the surface of a heated chamber
GB1101818A (en) Method of producing collapsed expandable cellular product
NL7706966A (en) Appts. for pre:expanding polymeric beads - in which the beads are swept around the surface of a heated chamber

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee