FR2209602A1 - Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applications - Google Patents
Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applicationsInfo
- Publication number
- FR2209602A1 FR2209602A1 FR7343445A FR7343445A FR2209602A1 FR 2209602 A1 FR2209602 A1 FR 2209602A1 FR 7343445 A FR7343445 A FR 7343445A FR 7343445 A FR7343445 A FR 7343445A FR 2209602 A1 FR2209602 A1 FR 2209602A1
- Authority
- FR
- France
- Prior art keywords
- varied
- polyurethane foam
- different applications
- variable size
- reaction progress
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
- B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
- B29B7/428—Parts or accessories, e.g. casings, feeding or discharging 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A mixer, esp. for polyurethane foam prodn., has a mixing chamber with several inlets for the constituents, and an outlet. The volume of the chamber can be varied between predetermined limits (esp. in ratio >=1:2), by applying pressure from outside the chamber onto a flexible diaphragm inside the chamber, thus reducing the volume.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5650072 | 1972-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2209602A1 true FR2209602A1 (en) | 1974-07-05 |
FR2209602B3 FR2209602B3 (en) | 1976-10-15 |
Family
ID=10476781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7343445A Granted FR2209602A1 (en) | 1972-12-07 | 1973-12-05 | Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applications |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE808200A (en) |
DE (1) | DE2360891A1 (en) |
FR (1) | FR2209602A1 (en) |
NL (1) | NL7316664A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112619545A (en) * | 2020-11-26 | 2021-04-09 | 郑来来 | Device structure capable of freely adjusting variable ratio of wall coating |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3111957A1 (en) * | 1981-03-26 | 1982-10-07 | Maschinenfabrik Hennecke Gmbh, 5090 Leverkusen | DEVICE FOR PRODUCING A FOAM OR SOLID-FLOWABLE REACTION MIXTURE FROM AT LEAST TWO FLOWABLE COMPONENTS |
-
1973
- 1973-12-04 BE BE138497A patent/BE808200A/en unknown
- 1973-12-05 NL NL7316664A patent/NL7316664A/xx unknown
- 1973-12-05 FR FR7343445A patent/FR2209602A1/en active Granted
- 1973-12-06 DE DE2360891A patent/DE2360891A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112619545A (en) * | 2020-11-26 | 2021-04-09 | 郑来来 | Device structure capable of freely adjusting variable ratio of wall coating |
Also Published As
Publication number | Publication date |
---|---|
FR2209602B3 (en) | 1976-10-15 |
NL7316664A (en) | 1974-06-11 |
BE808200A (en) | 1974-06-04 |
DE2360891A1 (en) | 1974-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |