IT1116446B - Procedimento per ridurre l'agglomeramento di zone periferiche in espansi di poliuretano pieghevole - Google Patents

Procedimento per ridurre l'agglomeramento di zone periferiche in espansi di poliuretano pieghevole

Info

Publication number
IT1116446B
IT1116446B IT49483/77A IT4948377A IT1116446B IT 1116446 B IT1116446 B IT 1116446B IT 49483/77 A IT49483/77 A IT 49483/77A IT 4948377 A IT4948377 A IT 4948377A IT 1116446 B IT1116446 B IT 1116446B
Authority
IT
Italy
Prior art keywords
agglomeration
procedure
reduce
polyurethane foams
peripheral areas
Prior art date
Application number
IT49483/77A
Other languages
English (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
Application granted granted Critical
Publication of IT1116446B publication Critical patent/IT1116446B/it

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
IT49483/77A 1976-05-24 1977-05-20 Procedimento per ridurre l'agglomeramento di zone periferiche in espansi di poliuretano pieghevole IT1116446B (it)

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 (1)

Publication Number Publication Date
IT1116446B true IT1116446B (it) 1986-02-10

Family

ID=8471629

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49483/77A IT1116446B (it) 1976-05-24 1977-05-20 Procedimento per ridurre l'agglomeramento di zone periferiche in espansi di poliuretano pieghevole

Country Status (8)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
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
DE2748733A1 (de) * 1977-10-29 1979-05-10 5090 Leverkusen Verfahren und einrichtung zum kontinuierlichen herstellen von blockfoermigem schaumstoff
FI783792A (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 (it) * 1972-08-25 1974-06-28
JPS50126764A (it) * 1974-03-27 1975-10-06

Also Published As

Publication number Publication date
PT66487B (en) 1978-09-29
FR2352855A1 (fr) 1977-12-23
DE2722841A1 (de) 1977-12-08
BE858339A (fr) 1978-01-02
PT66487A (en) 1977-05-01
JPS52145472A (en) 1977-12-03
GB1534824A (en) 1978-12-06
ES448190A1 (es) 1977-08-01

Similar Documents

Publication Publication Date Title
FR2321872A1 (fr) Pansement auriculaire se dilatant en presence d'humidite
IT1085099B (it) Procedimento per decaffeinare caffe'
FR2352703A1 (fr) Chaise roulante pliable pour enfants
IT1061423B (it) Solfolanilossialchil polialchilsi lossani e loro uso nella formazione di espanso poliuretanico di elevata resilenza
IT1058454B (it) Tprcedimento per la produzione di schiume poliuretaniche soffici ed extra supersoffici
BE853038A (fr) Perfectionnements au finissage d'objets
BE850158A (fr) Chaise roulante pliable pour enfants
BE857186A (fr) Lit pour s'asseoir ou se coucher
AT373776B (de) Pelottengurt zum tragen im bereich der menschlichen lendenwirbelsaeule
IT1116446B (it) Procedimento per ridurre l'agglomeramento di zone periferiche in espansi di poliuretano pieghevole
IT1112107B (it) Procedimento in continuo per la epossidazione di alcheni con l'impiego di pfrossiacidi
IT1097437B (it) Mescole di polimeri dotati di migliore stabilita' idrolitica
IT1141392B (it) Procedimento di trasformazione dell'idrargillite in boemite
IT7969240A0 (it) Procedimento e dispositivo per laproduzione in continuo di schiuma poliuretanica
NO790559L (no) Blanding til fremstilling av fleksibelt polyuretanskum og katalysatorblanding til bruk i blandingen
IT1114707B (it) Perfezionamento negli espansi di poliuretano con proprieta' ignifughe
IT1077587B (it) Procedimento di formazione di giunti lungitudinali in tessuti
IT1107244B (it) Indolopironi aventi attivita' antiallergica
IT1090308B (it) Perfezionamento nella produzione di schiume poliuretaniche
IT1071312B (it) Procedimento per separare e recuperare sostanze non reagite nella sintesi dell'urea
ZA771850B (en) Improvements in or relating to the construction of articles of furniture
GB1549454A (en) Abrasives in the form of hollow spheres
IT1086368B (it) Processo per ridurre la permeabilita' di articoli carboniosi
IT8026937A0 (it) Procedimento e apparecchiatura per impedire oscillazione di nastro in movimento.
MX144368A (es) Mejoras en rasuradora para dama