GB1053626A - - Google Patents
Info
- Publication number
- GB1053626A GB1053626A GB1053626DA GB1053626A GB 1053626 A GB1053626 A GB 1053626A GB 1053626D A GB1053626D A GB 1053626DA GB 1053626 A GB1053626 A GB 1053626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould cavity
- closure
- polymerization
- moulding
- lactam
- 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.)
- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/06—Rod-shaped
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
-
- 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
- B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers
-
- 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
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/06—Rods, e.g. connecting rods, rails, stakes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyamides (AREA)
Abstract
1,053,626. Moulding polyamides. BADISCHE ANILIN- & SODA-FABRIK A.G. April 29, 1964 [May 9, 1963], No. 17688/64. Heading B5A. In a process for the continuous production of mouldings from polyamides, a mixture of lactams having six to fourteen ring carbon atoms, alkaline catalysts and activators is fed into a mould cavity 1 (Fig. 1, not shown), the heated upper portion of which is closed at the bottom by an axially movable closure 3, polymerization is initiated above the closure, and as the moulding 10 is formed (Fig. 2, not shown), it is lowered at a rate corresponding to the rate of polymerization by lowering the closure 3, the polymerization mixture being continuously metered to the upper end of the mould cavity. Preferably the closure 3 is lowered by means of a threaded shaft 4 detachably secured to the closure and engaging in a pivotable variable drive 6. When the moulding 10 issues below the mould cavity 1, the shaft 4 is detached, the drive 6 swung out of the way, and the moulding is advanced by shaped rollers 11. The upper end of the mould cavity may be closed by a cover 8, and the polymerization carried out in inert gas under super-atmospheric pressure. Heating and cooling means 2 may be provided. The mould cavity may have an axial curvature, the closure being withdrawn by cable traction (Fig. 3, not shown). By suspending a suitably shaped displacement member in the mould cavity, hollow sections may be prepared. The walls of the mould may be coated with P.T.F.E. or silicone rubber. Suitable lactams include caprolactam, oenanthic lactam, capric lactam, laurolactam or C-substituted derivatives of these lactams. Many examples of alkaline catalysts and activators are given. An alkaline catalyst may be dissolved in one portion of the lactam, an activator in another, and the two portions mixed together immediately prior to entering the mould cavity. Polymerization is preferably carried out at 100-160 C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB71820A DE1266499B (en) | 1963-05-09 | 1963-05-09 | Process for the production of polyamides with molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1053626A true GB1053626A (en) | 1900-01-01 |
Family
ID=6977190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1053626D Expired GB1053626A (en) | 1963-05-09 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE647706A (en) |
| DE (1) | DE1266499B (en) |
| GB (1) | GB1053626A (en) |
| NL (1) | NL6405045A (en) |
-
0
- GB GB1053626D patent/GB1053626A/en not_active Expired
-
1963
- 1963-05-09 DE DEB71820A patent/DE1266499B/en active Pending
-
1964
- 1964-05-06 NL NL6405045A patent/NL6405045A/xx unknown
- 1964-05-08 BE BE647706D patent/BE647706A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6405045A (en) | 1964-11-10 |
| DE1266499B (en) | 1968-04-18 |
| BE647706A (en) | 1964-11-09 |
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