RO73029B - Process and device for the extrusion of expandable plastics - Google Patents
Process and device for the extrusion of expandable plasticsInfo
- Publication number
- RO73029B RO73029B RO64758A RO6475870A RO73029B RO 73029 B RO73029 B RO 73029B RO 64758 A RO64758 A RO 64758A RO 6475870 A RO6475870 A RO 6475870A RO 73029 B RO73029 B RO 73029B
- Authority
- RO
- Romania
- Prior art keywords
- extrusion
- expandable plastics
- cavity
- extruding
- expandable
- Prior art date
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
- B29C44/36—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
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
-
- 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
- B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
- B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
-
- 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
- B29K2105/043—Skinned foam
Abstract
Inventia se refera la un procedeu pentru extruderea unor materiale plastice extensibile, cel putin într-o stare partial neexpandabila, într-un formator prelung deschis la ambele capete, dispus coaxial cu matrita si avînd o sectiune de intrare egala cu aceea a matritei si o sectiune de evacuare identica cu aceea a produsului necesar, putîndu-se prevede o cavitate în interiorul materialului în timpul extruderii prinmatrita, prin aceasta materialul extrudat se expandeaza spre interior, astfel încîtsa umple cel putin cavitatea.The invention relates to a process for extruding expandable plastics materials, at least in a partially unusable state, into a long open molding on both ends, coaxially arranged with the mold and having an input section equal to that of the die and a section the outlet of which is identical to that of the required product, and a cavity may be provided inside the material during the extrusion, thereby extruding the extrudate to the inside so as to fill at least the cavity.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6936308A FR2063589A6 (en) | 1969-10-22 | 1969-10-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
RO73029A RO73029A (en) | 1984-10-31 |
RO73029B true RO73029B (en) | 1984-11-30 |
Family
ID=9041938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO64758A RO73029B (en) | 1969-10-22 | 1970-10-22 | Process and device for the extrusion of expandable plastics |
Country Status (24)
Country | Link |
---|---|
JP (1) | JPS4812423B1 (en) |
AT (1) | AT331501B (en) |
BE (1) | BE757510R (en) |
BR (1) | BR7023259D0 (en) |
CA (1) | CA981861A (en) |
CH (1) | CH532463A (en) |
CS (1) | CS216179B2 (en) |
DE (1) | DE2050550C3 (en) |
DK (1) | DK135526B (en) |
ES (1) | ES384742A2 (en) |
FI (1) | FI52043C (en) |
FR (1) | FR2063589A6 (en) |
GB (1) | GB1318608A (en) |
HU (1) | HU163120B (en) |
IE (1) | IE34595B1 (en) |
IT (1) | IT941015B (en) |
LU (1) | LU61898A1 (en) |
NL (1) | NL167891C (en) |
NO (1) | NO132417C (en) |
OA (1) | OA152E (en) |
PL (1) | PL84474B3 (en) |
RO (1) | RO73029B (en) |
SE (1) | SE365981B (en) |
ZA (1) | ZA707038B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3931379A (en) * | 1973-07-17 | 1976-01-06 | Cosden Oil & Chemical Company | Foamed profile extrusion process |
US3954929A (en) * | 1973-10-11 | 1976-05-04 | The Dow Chemical Company | Method and apparatus for the extrusion of foamable thermoplastic materials |
US3978182A (en) * | 1973-12-26 | 1976-08-31 | Mobil Oil Corporation | Method for extruding a polystyrene foam with variations in mass concentration across the sheet and thermoforming the sheet |
IT1074365B (en) * | 1977-03-22 | 1985-04-20 | Montedison Spa | EXTRUSION PROCEDURE OF SEMI-EXPANDED PLASTIC PROFILES AND RELATED EQUIPMENT |
NO154220C (en) * | 1979-04-20 | 1986-08-20 | Sentralinst For Ind Forskning | WALL CONSTRUCTION AND PROCEDURE FOR ITS MANUFACTURING. |
DE3418506A1 (en) * | 1984-05-18 | 1985-11-21 | Fa. Carl Freudenberg, 6940 Weinheim | METHOD FOR PRODUCING FOAMS WITH HIGH THERMAL RESISTANCE |
FR2580542B1 (en) * | 1985-04-23 | 1987-07-17 | Atochem | PROCESS FOR EXTRUDING EXPANDABLE PLASTICS |
DE102007045900A1 (en) * | 2007-09-26 | 2009-04-09 | Rehau Ag + Co | Composite body and method for its production |
CN109016314A (en) * | 2017-06-09 | 2018-12-18 | 南京法宁格节能科技股份有限公司 | The double methods opened of XPS profile shapes ornamental strip mold and mould therefor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154264B (en) * | 1956-11-20 | 1963-09-12 | Reifenhaeuser Kg | Device for the continuous extrusion of molded bodies with a foam core and a shell made of thermoplastic material |
NL254014A (en) * | 1959-07-22 | 1900-01-01 | ||
FR1255499A (en) * | 1960-01-28 | 1961-03-10 | Ets Kuhlmann | Lightweight material resistant to pressure and stress, its manufacture and applications |
DE1235566B (en) * | 1962-04-30 | 1967-03-02 | Huels Chemische Werke Ag | Device for extrusion of foam profiles |
FR1428652A (en) * | 1964-03-03 | 1966-02-18 | Haveg Industries Inc | Thermoplastic polymer foam stretched then heat contracted |
FR1434808A (en) * | 1964-05-29 | 1966-04-08 | Basf Ag | Method and device for the manufacture of foamed plastic strips |
US3461496A (en) * | 1965-11-08 | 1969-08-19 | Thomas W Winstead | Apparatus for extruding a skin covered,foamed thermoplastic |
FR1498620A (en) * | 1966-09-07 | 1967-10-20 | Kuhlmann Ets | Method and device for the extrusion of expandable plastics |
-
0
- BE BE757510D patent/BE757510R/en active
-
1969
- 1969-10-22 FR FR6936308A patent/FR2063589A6/fr not_active Expired
-
1970
- 1970-10-14 IE IE1324/70A patent/IE34595B1/en unknown
- 1970-10-15 FI FI702792A patent/FI52043C/en active
- 1970-10-15 DE DE2050550A patent/DE2050550C3/en not_active Expired
- 1970-10-15 IT IT54080/70A patent/IT941015B/en active
- 1970-10-15 ZA ZA707038A patent/ZA707038B/en unknown
- 1970-10-16 GB GB4924470A patent/GB1318608A/en not_active Expired
- 1970-10-16 CA CA095,824A patent/CA981861A/en not_active Expired
- 1970-10-19 CH CH1545870A patent/CH532463A/en not_active IP Right Cessation
- 1970-10-20 LU LU61898D patent/LU61898A1/xx unknown
- 1970-10-20 AT AT944370A patent/AT331501B/en not_active IP Right Cessation
- 1970-10-20 PL PL1970143986A patent/PL84474B3/pl unknown
- 1970-10-21 NO NO3973/70A patent/NO132417C/no unknown
- 1970-10-21 SE SE14218/70A patent/SE365981B/xx unknown
- 1970-10-21 JP JP45092117A patent/JPS4812423B1/ja active Pending
- 1970-10-21 ES ES384742A patent/ES384742A2/en not_active Expired
- 1970-10-21 HU HUKU447A patent/HU163120B/hu unknown
- 1970-10-21 OA OA54063A patent/OA152E/xx unknown
- 1970-10-21 CS CS707077A patent/CS216179B2/en unknown
- 1970-10-22 RO RO64758A patent/RO73029B/en unknown
- 1970-10-22 NL NLAANVRAGE7015500,A patent/NL167891C/en not_active IP Right Cessation
- 1970-10-22 BR BR223259/70A patent/BR7023259D0/en unknown
- 1970-10-22 DK DK538270AA patent/DK135526B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB1318608A (en) | 1973-05-31 |
BE757510R (en) | 1971-04-14 |
HU163120B (en) | 1973-06-28 |
NL167891C (en) | 1987-04-16 |
BR7023259D0 (en) | 1973-04-05 |
DE2050550C3 (en) | 1984-11-08 |
CS216179B2 (en) | 1982-10-29 |
CA981861A (en) | 1976-01-20 |
CH532463A (en) | 1973-01-15 |
PL84474B3 (en) | 1976-04-30 |
DE2050550A1 (en) | 1971-04-29 |
AT331501B (en) | 1976-08-25 |
DE2050550B2 (en) | 1979-11-29 |
NO132417B (en) | 1975-08-04 |
FI52043C (en) | 1977-06-10 |
DK135526C (en) | 1977-10-24 |
FI52043B (en) | 1977-02-28 |
ES384742A2 (en) | 1973-09-01 |
RO73029A (en) | 1984-10-31 |
LU61898A1 (en) | 1971-08-10 |
IE34595B1 (en) | 1975-06-25 |
OA152E (en) | 1971-12-24 |
SE365981B (en) | 1974-04-08 |
FR2063589A6 (en) | 1971-07-09 |
NL7015500A (en) | 1971-04-26 |
ATA944370A (en) | 1975-11-15 |
JPS4812423B1 (en) | 1973-04-20 |
ZA707038B (en) | 1971-08-25 |
NO132417C (en) | 1975-11-12 |
IT941015B (en) | 1973-03-01 |
NL167891B (en) | 1981-09-16 |
IE34595L (en) | 1971-04-22 |
DK135526B (en) | 1977-05-16 |
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