CA984568A - Process for increasing the pressure stresses on pre-expanded hard foam materials - Google Patents

Process for increasing the pressure stresses on pre-expanded hard foam materials

Info

Publication number
CA984568A
CA984568A CA145,774A CA145774A CA984568A CA 984568 A CA984568 A CA 984568A CA 145774 A CA145774 A CA 145774A CA 984568 A CA984568 A CA 984568A
Authority
CA
Canada
Prior art keywords
increasing
foam materials
hard foam
pressure stresses
expanded hard
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
CA145,774A
Other versions
CA145774S (en
Inventor
Kurt Strauven
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 and VERTRIEBS GmbH
Original Assignee
WASSER-SAND-FORSCHUNG and VERTRIEBS GmbH
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 and VERTRIEBS GmbH filed Critical WASSER-SAND-FORSCHUNG and VERTRIEBS GmbH
Application granted granted Critical
Publication of CA984568A publication Critical patent/CA984568A/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)
CA145,774A 1971-06-29 1972-06-27 Process for increasing the pressure stresses on pre-expanded hard foam materials Expired CA984568A (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
CA984568A true CA984568A (en) 1976-03-02

Family

ID=5812104

Family Applications (1)

Application Number Title Priority Date Filing Date
CA145,774A Expired CA984568A (en) 1971-06-29 1972-06-27 Process for increasing the pressure stresses on pre-expanded hard foam materials

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
GB1401846A (en) 1975-07-30
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

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