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IT1037060B - METHOD AND APPARATUS FOR THE PRODUCTION OF FOAMS AND IN PARTICULAR THE PROSUCTION OF BLOCKS OF PLASTIC SCHUIMA WITH A FLAT SUPERIOR SURFACE - Google Patents

METHOD AND APPARATUS FOR THE PRODUCTION OF FOAMS AND IN PARTICULAR THE PROSUCTION OF BLOCKS OF PLASTIC SCHUIMA WITH A FLAT SUPERIOR SURFACE

Info

Publication number
IT1037060B
IT1037060B IT7423973A IT2397374A IT1037060B IT 1037060 B IT1037060 B IT 1037060B IT 7423973 A IT7423973 A IT 7423973A IT 2397374 A IT2397374 A IT 2397374A IT 1037060 B IT1037060 B IT 1037060B
Authority
IT
Italy
Prior art keywords
schuima
prosuction
foams
blocks
plastic
Prior art date
Application number
IT7423973A
Other languages
Italian (it)
Inventor
J E Marjoram
Original Assignee
Dunlop 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
Application filed by Dunlop Ltd filed Critical Dunlop Ltd
Application granted granted Critical
Publication of IT1037060B publication Critical patent/IT1037060B/en

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
    • B29C44/58—Moulds
    • B29C44/586—Moulds with a cavity increasing in size during foaming
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Road Signs Or Road Markings (AREA)
  • Electrotherapy Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Molding Of Porous Articles (AREA)
IT7423973A 1973-05-29 1974-06-14 METHOD AND APPARATUS FOR THE PRODUCTION OF FOAMS AND IN PARTICULAR THE PROSUCTION OF BLOCKS OF PLASTIC SCHUIMA WITH A FLAT SUPERIOR SURFACE IT1037060B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2543073A GB1425612A (en) 1973-05-29 1973-05-29 Moulding of plastics foam

Publications (1)

Publication Number Publication Date
IT1037060B true IT1037060B (en) 1979-11-10

Family

ID=10227546

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7423973A IT1037060B (en) 1973-05-29 1974-06-14 METHOD AND APPARATUS FOR THE PRODUCTION OF FOAMS AND IN PARTICULAR THE PROSUCTION OF BLOCKS OF PLASTIC SCHUIMA WITH A FLAT SUPERIOR SURFACE

Country Status (19)

Country Link
JP (1) JPS5022064A (en)
AR (1) AR199346A1 (en)
BE (1) BE815707A (en)
BR (1) BR7404347D0 (en)
CA (1) CA1021118A (en)
CH (1) CH582056A5 (en)
DE (1) DE2426212A1 (en)
DK (1) DK288874A (en)
ES (1) ES426706A1 (en)
FI (1) FI162074A (en)
FR (1) FR2231503B1 (en)
GB (1) GB1425612A (en)
IE (1) IE39398B1 (en)
IT (1) IT1037060B (en)
NL (1) NL7406809A (en)
NO (1) NO140461C (en)
SE (1) SE402067B (en)
ZA (1) ZA743202B (en)
ZM (1) ZM8074A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4666393A (en) * 1986-06-13 1987-05-19 Human Industry Corporation Apparatus for manufacturing polyurethane foam slabs in a batch
GB2291002A (en) * 1994-07-08 1996-01-17 Hoover Universal Apparatus and method for producing blocks of foam
CN111745882A (en) * 2020-06-11 2020-10-09 溧阳市山湖实业有限公司 PU sheet downward moving type foaming production process and production equipment thereof
CN111974938B (en) * 2020-08-27 2024-07-30 杭州欧宸科技有限公司 Full-automatic foam mold forming machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588151A (en) * 1948-09-30 1952-03-04 Gen Electric Apparatus for producing uniform foam structures
US2649620A (en) * 1951-08-01 1953-08-25 Union Carbide & Carbon Corp Casting expanded plastics

Also Published As

Publication number Publication date
CH582056A5 (en) 1976-11-30
AU6923274A (en) 1975-11-27
BR7404347D0 (en) 1975-01-21
FR2231503A1 (en) 1974-12-27
IE39398B1 (en) 1978-09-27
DK288874A (en) 1975-01-20
NO741847L (en) 1974-12-02
GB1425612A (en) 1976-02-18
SE7407047L (en) 1974-12-02
ES426706A1 (en) 1977-01-01
NO140461C (en) 1979-09-05
JPS5022064A (en) 1975-03-08
FR2231503B1 (en) 1976-12-24
ZA743202B (en) 1975-05-28
ZM8074A1 (en) 1974-12-20
CA1021118A (en) 1977-11-22
IE39398L (en) 1974-11-29
BE815707A (en) 1974-09-16
NL7406809A (en) 1974-12-03
NO140461B (en) 1979-05-28
FI162074A (en) 1974-11-30
DE2426212A1 (en) 1974-12-19
AR199346A1 (en) 1974-08-23
SE402067B (en) 1978-06-19

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