IT946463B - Processo e dispositivo per la pro duzione di blocchi di materiale espanso con superficie piana in forme aperte - Google Patents

Processo e dispositivo per la pro duzione di blocchi di materiale espanso con superficie piana in forme aperte

Info

Publication number
IT946463B
IT946463B IT1923672A IT1923672A IT946463B IT 946463 B IT946463 B IT 946463B IT 1923672 A IT1923672 A IT 1923672A IT 1923672 A IT1923672 A IT 1923672A IT 946463 B IT946463 B IT 946463B
Authority
IT
Italy
Prior art keywords
blocks
production
flat surface
expanded material
open forms
Prior art date
Application number
IT1923672A
Other languages
English (en)
Italian (it)
Original Assignee
Continental Gummi Werke Ag
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 DE19712101238 external-priority patent/DE2101238C3/de
Application filed by Continental Gummi Werke Ag filed Critical Continental Gummi Werke Ag
Application granted granted Critical
Publication of IT946463B publication Critical patent/IT946463B/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
    • B29C44/34—Auxiliary operations
    • B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid
    • 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
    • B29C44/005—Avoiding skin formation; Making foams with porous surfaces
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/467—Foam spreading or levelling devices
    • 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
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/006—Degassing moulding material or draining off gas during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
IT1923672A 1971-01-12 1972-01-11 Processo e dispositivo per la pro duzione di blocchi di materiale espanso con superficie piana in forme aperte IT946463B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712101238 DE2101238C3 (de) 1971-01-12 Verfahren und Vorrichtung zur Herstellung von Schaumstoffblöcken mit ebener Oberfläche in offenen Formen

Publications (1)

Publication Number Publication Date
IT946463B true IT946463B (it) 1973-05-21

Family

ID=5795673

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1923672A IT946463B (it) 1971-01-12 1972-01-11 Processo e dispositivo per la pro duzione di blocchi di materiale espanso con superficie piana in forme aperte

Country Status (8)

Country Link
AT (1) AT335168B (es)
BE (1) BE777216A (es)
DK (1) DK134889C (es)
ES (1) ES398763A1 (es)
FR (1) FR2121520B1 (es)
GB (1) GB1380645A (es)
IT (1) IT946463B (es)
NL (1) NL7118216A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU170123B (es) * 1975-05-29 1977-04-28
DE3842625C1 (es) * 1988-12-17 1990-05-31 Bayer Ag, 5090 Leverkusen, De
BE1004588A3 (nl) * 1990-09-14 1992-12-15 Recticel Werkwijze voor het vervaardigen van soepel polyurethaanschuim.
CN110789049B (zh) * 2019-12-10 2024-10-11 杭州塑团机械有限公司 一种泡塑机移模系统

Also Published As

Publication number Publication date
DK134889B (da) 1977-02-07
DK134889C (da) 1977-06-27
BE777216A (fr) 1972-01-14
NL7118216A (es) 1972-07-14
ATA19872A (de) 1976-06-15
ES398763A1 (es) 1975-05-01
AT335168B (de) 1977-02-25
DE2101238B2 (de) 1975-11-13
GB1380645A (en) 1975-01-15
FR2121520B1 (es) 1974-07-05
FR2121520A1 (es) 1972-08-25
DE2101238A1 (de) 1972-07-27

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