NL7712094A - PROCESS FOR THE MANUFACTURE OF MICROPOROUS, HOLLOW PROFILES, IN PARTICULAR PIPES, FOR THE SUPPLY AND DISCHARGE OF FLOWING PRODUCTS, SUCH AS GASES OR LIQUIDS. - Google Patents
PROCESS FOR THE MANUFACTURE OF MICROPOROUS, HOLLOW PROFILES, IN PARTICULAR PIPES, FOR THE SUPPLY AND DISCHARGE OF FLOWING PRODUCTS, SUCH AS GASES OR LIQUIDS.Info
- Publication number
- NL7712094A NL7712094A NL7712094A NL7712094A NL7712094A NL 7712094 A NL7712094 A NL 7712094A NL 7712094 A NL7712094 A NL 7712094A NL 7712094 A NL7712094 A NL 7712094A NL 7712094 A NL7712094 A NL 7712094A
- Authority
- NL
- Netherlands
- Prior art keywords
- microporous
- liquids
- gases
- manufacture
- discharge
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B11/00—Drainage of soil, e.g. for agricultural purposes
- E02B11/005—Drainage conduits
-
- 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
- B29C44/507—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 an annular die
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B13/00—Irrigation ditches, i.e. gravity flow, open channel water distribution systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762650718 DE2650718A1 (en) | 1976-11-05 | 1976-11-05 | PROCESS FOR MANUFACTURING MICROPOROUS HOLLOW PROFILES, IN PARTICULAR PIPES, FOR INPUT AND REMOVAL OF FLOWING SUBSTANCES SUCH AS GASES OR LIQUIDS |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7712094A true NL7712094A (en) | 1978-05-09 |
Family
ID=5992536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7712094A NL7712094A (en) | 1976-11-05 | 1977-11-02 | PROCESS FOR THE MANUFACTURE OF MICROPOROUS, HOLLOW PROFILES, IN PARTICULAR PIPES, FOR THE SUPPLY AND DISCHARGE OF FLOWING PRODUCTS, SUCH AS GASES OR LIQUIDS. |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE860462A (en) |
DE (1) | DE2650718A1 (en) |
DK (1) | DK490877A (en) |
ES (1) | ES463870A1 (en) |
FR (1) | FR2369919A1 (en) |
NL (1) | NL7712094A (en) |
SE (1) | SE7712439L (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE21649T1 (en) * | 1981-10-22 | 1986-09-15 | Ici Plc | METHOD OF MAKING A PVC IRRIGATION PIPE. |
DE4325879C3 (en) * | 1993-08-02 | 1999-05-20 | Depron Bv | Film made of a thermoplastic foam, process for its production and its use |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2807505A (en) * | 1956-07-02 | 1957-09-24 | Shuford Mills | Soil soaking devices |
DE1629423A1 (en) * | 1966-04-02 | 1971-01-14 | Gruenzweig & Hartmann | Process for the production of synthetic resin foams and use of a pipe produced by this process |
US3502753A (en) * | 1966-05-13 | 1970-03-24 | Owens Illinois Inc | Extruding foamed plastics |
BE716366A (en) * | 1967-06-22 | 1968-11-04 | ||
US3558753A (en) * | 1967-11-13 | 1971-01-26 | Int Plastics | Method of producing a porous resin by withdrawing gas from a foam extrudate while it is in a semi-molten state |
-
1976
- 1976-11-05 DE DE19762650718 patent/DE2650718A1/en not_active Ceased
-
1977
- 1977-11-02 NL NL7712094A patent/NL7712094A/en not_active Application Discontinuation
- 1977-11-03 SE SE7712439A patent/SE7712439L/en unknown
- 1977-11-04 FR FR7733288A patent/FR2369919A1/en not_active Withdrawn
- 1977-11-04 DK DK490877A patent/DK490877A/en unknown
- 1977-11-04 BE BE2056401A patent/BE860462A/en unknown
- 1977-11-04 ES ES463870A patent/ES463870A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE860462A (en) | 1978-05-05 |
SE7712439L (en) | 1978-05-06 |
DE2650718A1 (en) | 1978-05-11 |
FR2369919A1 (en) | 1978-06-02 |
ES463870A1 (en) | 1978-07-01 |
DK490877A (en) | 1978-05-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |