FR2134412B1 - - Google Patents
Info
- Publication number
- FR2134412B1 FR2134412B1 FR7214273A FR7214273A FR2134412B1 FR 2134412 B1 FR2134412 B1 FR 2134412B1 FR 7214273 A FR7214273 A FR 7214273A FR 7214273 A FR7214273 A FR 7214273A FR 2134412 B1 FR2134412 B1 FR 2134412B1
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Expired
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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/10—Applying counter-pressure during expanding
- B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
- B29C44/0446—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by increasing the density locally by compressing part of the foam while still in the mould
-
- 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
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- 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
- B29C37/005—Compensating volume or shape change during moulding, in general
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712119875 DE2119875C3 (de) | 1971-04-23 | 1971-04-23 | Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2134412A1 FR2134412A1 (en) | 1972-12-08 |
FR2134412B1 true FR2134412B1 (fr) | 1975-06-20 |
Family
ID=5805679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7214273A Granted FR2134412A1 (en) | 1971-04-23 | 1972-04-21 | Hard foam prodn - with variable volume core to regulate foaming pressure |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2119875C3 (fr) |
FR (1) | FR2134412A1 (fr) |
IT (1) | IT953330B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2889480B1 (fr) * | 2005-08-05 | 2008-11-21 | Allibert Buckhorn Europ Soc Pa | Procede de rotomoulage de pieces creuses, et ossature de structure porteuse |
-
1971
- 1971-04-23 DE DE19712119875 patent/DE2119875C3/de not_active Expired
-
1972
- 1972-04-21 FR FR7214273A patent/FR2134412A1/fr active Granted
- 1972-04-21 IT IT732972A patent/IT953330B/it active
Also Published As
Publication number | Publication date |
---|---|
DE2119875A1 (de) | 1972-11-02 |
IT953330B (it) | 1973-08-10 |
DE2119875B2 (de) | 1973-06-14 |
FR2134412A1 (en) | 1972-12-08 |
DE2119875C3 (de) | 1974-01-17 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |