PT66487B - Process for reducing to a minimum the densification of peripherical areas of continuous blocks in flexible polyurethane foam - Google Patents

Process for reducing to a minimum the densification of peripherical areas of continuous blocks in flexible polyurethane foam

Info

Publication number
PT66487B
PT66487B PT66487A PT6648777A PT66487B PT 66487 B PT66487 B PT 66487B PT 66487 A PT66487 A PT 66487A PT 6648777 A PT6648777 A PT 6648777A PT 66487 B PT66487 B PT 66487B
Authority
PT
Portugal
Prior art keywords
peripherical
densification
areas
minimum
reducing
Prior art date
Application number
PT66487A
Other languages
English (en)
Other versions
PT66487A (en
Original Assignee
Roday Espumaciones Ind
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 Roday Espumaciones Ind filed Critical Roday Espumaciones Ind
Publication of PT66487A publication Critical patent/PT66487A/pt
Publication of PT66487B publication Critical patent/PT66487B/pt

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
PT66487A 1976-05-24 1977-04-28 Process for reducing to a minimum the densification of peripherical areas of continuous blocks in flexible polyurethane foam PT66487B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES448190A ES448190A1 (es) 1976-05-24 1976-05-24 Procedimiento para reducir al minimo la densificacion de laszonas perifericas de bloques de espuma flexible de poliure- tano.

Publications (2)

Publication Number Publication Date
PT66487A PT66487A (en) 1977-05-01
PT66487B true PT66487B (en) 1978-09-29

Family

ID=8471629

Family Applications (1)

Application Number Title Priority Date Filing Date
PT66487A PT66487B (en) 1976-05-24 1977-04-28 Process for reducing to a minimum the densification of peripherical areas of continuous blocks in flexible polyurethane foam

Country Status (8)

Country Link
JP (1) JPS52145472A (pt)
BE (1) BE858339A (pt)
DE (1) DE2722841A1 (pt)
ES (1) ES448190A1 (pt)
FR (1) FR2352855A1 (pt)
GB (1) GB1534824A (pt)
IT (1) IT1116446B (pt)
PT (1) PT66487B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES475522A2 (es) * 1978-11-29 1979-08-16 Tecfoam Sa Mejoras introducidas en el objeto de la patente pirncipal sobre perfeccionamientos introducidos en una instalacion de bloques continuos de espuma de poliuretano carentes de costr
ES466951A1 (es) * 1978-02-14 1978-10-01 Tec Foam Sa Perfeccionamientos introducidos en una instalacion para la obtencion de bloques continuos de espuma de poliuretano ca- rentes de "costra" o capa de mayor densidad en su parte de fondo.
DE2748733A1 (de) * 1977-10-29 1979-05-10 5090 Leverkusen Verfahren und einrichtung zum kontinuierlichen herstellen von blockfoermigem schaumstoff
FI783792A7 (fi) * 1978-01-18 1979-07-19 Tecfoam Sa Foerfarande foer eliminering av en foertaetning av bottenpartiet vid framstaellning av polyuretanskumblock

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4966763A (pt) * 1972-08-25 1974-06-28
JPS50126764A (pt) * 1974-03-27 1975-10-06

Also Published As

Publication number Publication date
ES448190A1 (es) 1977-08-01
FR2352855A1 (fr) 1977-12-23
DE2722841A1 (de) 1977-12-08
BE858339A (fr) 1978-01-02
JPS52145472A (en) 1977-12-03
IT1116446B (it) 1986-02-10
PT66487A (en) 1977-05-01
GB1534824A (en) 1978-12-06

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