CA1130523A - Process for eliminating densification of the bottom area during manufacture of blocks of polyurethane foam - Google Patents

Process for eliminating densification of the bottom area during manufacture of blocks of polyurethane foam

Info

Publication number
CA1130523A
CA1130523A CA319,766A CA319766A CA1130523A CA 1130523 A CA1130523 A CA 1130523A CA 319766 A CA319766 A CA 319766A CA 1130523 A CA1130523 A CA 1130523A
Authority
CA
Canada
Prior art keywords
foam
temperature
belt
area
tunnel
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
CA319,766A
Other languages
English (en)
French (fr)
Inventor
Roman Yarza Luaces
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.)
TECFOAM SA
Original Assignee
TECFOAM SA
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 claimed from ES466102A external-priority patent/ES466102A1/es
Priority claimed from ES473730A external-priority patent/ES473730A2/es
Application filed by TECFOAM SA filed Critical TECFOAM SA
Application granted granted Critical
Publication of CA1130523A publication Critical patent/CA1130523A/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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/28—Expanding the moulding material on continuous moving surfaces without restricting the upwards growth of the foam

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Laminated Bodies (AREA)
CA319,766A 1978-01-18 1979-01-17 Process for eliminating densification of the bottom area during manufacture of blocks of polyurethane foam Expired CA1130523A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ES466.102 1978-01-18
ES466102A ES466102A1 (es) 1978-01-18 1978-01-18 Procedimiento para eliminar la densificacion de la zona del fondo en la fabricacion de bloques de espuma de poliuretano.
ES473,730 1978-09-28
ES473730A ES473730A2 (es) 1978-09-28 1978-09-28 Mejoras introducidas en el objeto de la patente principal por procedimiento para eliminar la densificacion de la zona del fondo en la fabricacion de bloques de espuma de poliure-tano.

Publications (1)

Publication Number Publication Date
CA1130523A true CA1130523A (en) 1982-08-31

Family

ID=26155941

Family Applications (1)

Application Number Title Priority Date Filing Date
CA319,766A Expired CA1130523A (en) 1978-01-18 1979-01-17 Process for eliminating densification of the bottom area during manufacture of blocks of polyurethane foam

Country Status (18)

Country Link
AT (1) AT381277B (sv)
AU (1) AU521610B2 (sv)
BR (1) BR7900294A (sv)
CA (1) CA1130523A (sv)
CH (1) CH635028A5 (sv)
DE (1) DE2900525A1 (sv)
DK (1) DK153303C (sv)
FI (1) FI783792A (sv)
FR (1) FR2414996A1 (sv)
GB (1) GB2012657B (sv)
GR (1) GR63066B (sv)
IT (1) IT1114302B (sv)
MX (1) MX150391A (sv)
NL (1) NL7900372A (sv)
NO (1) NO790027L (sv)
PT (1) PT69056A (sv)
SE (1) SE420582B (sv)
YU (1) YU7479A (sv)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES423754A1 (es) * 1974-02-28 1976-05-01 Policastilla Nuevo procedimiento para la fabricacion de un bloque de ma-terial celular expandido con seccion circular y diametro va-riable.
DE2517664C3 (de) * 1975-04-22 1981-06-19 Metzeler Schaum Gmbh, 8940 Memmingen Verfahren zur kontinuierlichen Herstellen von rechteckigen Schaumstoffblöcken
ES215157Y (es) * 1975-09-16 1976-12-01 Policastilla, S. A. Dispositivo perfeccionado para la fabricacion continua de bloques de material celular expandido con seccion circular.
ES448190A1 (es) * 1976-05-24 1977-08-01 Roday Espumaciones Ind Procedimiento para reducir al minimo la densificacion de laszonas perifericas de bloques de espuma flexible de poliure- tano.
DE2748733A1 (de) * 1977-10-29 1979-05-10 5090 Leverkusen Verfahren und einrichtung zum kontinuierlichen herstellen von blockfoermigem schaumstoff

Also Published As

Publication number Publication date
AT381277B (de) 1986-09-25
GB2012657A (en) 1979-08-01
CH635028A5 (de) 1983-03-15
MX150391A (es) 1984-04-30
GR63066B (en) 1979-08-06
BR7900294A (pt) 1979-08-14
SE7900266L (sv) 1979-07-19
NL7900372A (nl) 1979-07-20
IT1114302B (it) 1986-01-27
DK21979A (da) 1979-07-19
FR2414996B1 (sv) 1983-11-18
YU7479A (en) 1982-10-31
IT7947543A0 (it) 1979-01-05
DE2900525C2 (sv) 1988-03-31
FR2414996A1 (fr) 1979-08-17
NO790027L (no) 1979-07-19
GB2012657B (en) 1982-03-31
FI783792A (fi) 1979-07-19
DK153303C (da) 1988-11-14
SE420582B (sv) 1981-10-19
DK153303B (da) 1988-07-04
PT69056A (en) 1979-02-01
ATA937278A (de) 1986-02-15
AU4278978A (en) 1979-07-26
AU521610B2 (en) 1982-04-22
DE2900525A1 (de) 1979-07-19

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Legal Events

Date Code Title Description
MKEX Expiry