FR2386408A1 - Procede de fabrication de panneaux de bardage en matiere thermoplastique - Google Patents
Procede de fabrication de panneaux de bardage en matiere thermoplastiqueInfo
- Publication number
- FR2386408A1 FR2386408A1 FR7809813A FR7809813A FR2386408A1 FR 2386408 A1 FR2386408 A1 FR 2386408A1 FR 7809813 A FR7809813 A FR 7809813A FR 7809813 A FR7809813 A FR 7809813A FR 2386408 A1 FR2386408 A1 FR 2386408A1
- Authority
- FR
- France
- Prior art keywords
- thermoplastic material
- siding panels
- panels
- manufacturing
- manufacturing siding
- 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.)
- Withdrawn
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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
- B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
- B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
- B29C48/916—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means using vacuum
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
- B29C2071/022—Annealing
-
- 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
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/904—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/906—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using roller calibration
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
Procédé pour la fabrication de panneaux de bardage pour constructions par extrusion d'un profilé rectangulaire creux en matière thermoplastique qui est conformé et calibré sous vide et refroidi. On assure la relaxation des tensions dans le profilé creux qui est ensuite découpé en deux panneaux plans séparés pour former les panneaux de bardage. Application au revêtement des murs et cloisons de bâtiments.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/785,264 US4115495A (en) | 1977-04-06 | 1977-04-06 | Processing extruded thermoplastic polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2386408A1 true FR2386408A1 (fr) | 1978-11-03 |
Family
ID=25134930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7809813A Withdrawn FR2386408A1 (fr) | 1977-04-06 | 1978-04-03 | Procede de fabrication de panneaux de bardage en matiere thermoplastique |
Country Status (10)
Country | Link |
---|---|
US (1) | US4115495A (fr) |
JP (1) | JPS53125468A (fr) |
AU (1) | AU3375078A (fr) |
BE (1) | BE865761A (fr) |
CA (1) | CA1095211A (fr) |
DE (1) | DE2811450A1 (fr) |
FR (1) | FR2386408A1 (fr) |
IT (1) | IT1094034B (fr) |
NL (1) | NL7803519A (fr) |
SE (1) | SE7803238L (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2505247A1 (fr) * | 1981-05-07 | 1982-11-12 | Idemitsu Petrochemical Co | Procede et appareil pour produire une feuille ou pellicule a orientation biaxiale |
US4685879A (en) * | 1985-06-13 | 1987-08-11 | Puerstinger Franz | Calibrator for extruded material |
EP0425942A2 (fr) * | 1989-10-31 | 1991-05-08 | INOEX GmbH | Dispositif de calibrage et de refroidissement pour un tube extrudé en matière plastique |
EP0936052A1 (fr) * | 1998-02-04 | 1999-08-18 | Röhm Gmbh | Dispositif pour la calibration de profilés creux extrudés en matière plastique |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4247506A (en) * | 1978-05-19 | 1981-01-27 | The B. F. Goodrich Company | Processing extruded elastomers |
US4357190A (en) * | 1978-12-07 | 1982-11-02 | Hancor, Inc. | Method and apparatus for manufacturing non-round plastic tubing |
DK71779A (da) * | 1979-02-19 | 1980-08-20 | Surgimed As | Fremgangsmaade og apparat til fremstilling af roerformede produkter isaer katetre |
US4527319A (en) * | 1981-09-28 | 1985-07-09 | Hancor, Inc. | Method and apparatus for manufacturing foldable conduit |
FR2596692B1 (fr) * | 1986-04-04 | 1988-09-09 | Atochem | Tubes en matiere plastique semi-cristalline extrudes presentant une resistance au choc a froid et a la traction amelioree par un traitement thermique et leur procede de fabrication |
JPS63135235A (ja) * | 1986-11-27 | 1988-06-07 | Kishimoto Sangyo Kk | 版状体を支持する支持枠素材の製法及びその構造 |
DE4026916A1 (de) * | 1990-08-25 | 1992-02-27 | Hoechst Ag | Verfahren zur herstellung von fuellmaterial fuer dreidimensional geformte textile gebilde sowie vorrichtung dafuer |
US5478516A (en) * | 1991-11-05 | 1995-12-26 | The Standard Products Company | Method of forming strip products from thermoplastic materials |
US5363540A (en) * | 1992-08-07 | 1994-11-15 | Dowbrands L.P. | Process and apparatus for controlling the gap width of a reclosable closure profile for a thermoplastic container |
US5468442A (en) * | 1994-05-25 | 1995-11-21 | Brabor S.R.L. | Apparatus and process for gauging and controlling extruded profiled elements |
US6129876A (en) * | 1996-05-03 | 2000-10-10 | Baxter International Inc. | Heat setting of medical tubings |
US7252650B1 (en) | 1996-08-02 | 2007-08-07 | Ranier Limited | Balloon catheter |
GB9616267D0 (en) * | 1996-08-02 | 1996-09-11 | Ranier Ltd | Balloon catheter |
CA2214955A1 (fr) * | 1996-09-13 | 1998-03-13 | Technoplast Kunststofftechnik Gesellschaft M.B.H. | Appareil de refroidissement de profiles en plastique |
DE19815276B4 (de) * | 1997-05-02 | 2010-04-08 | C.A. Greiner & Söhne Ges.m.b.H. | Nachbehandlungsverfahren für einen extrudierten Gegenstand |
US6635218B2 (en) * | 1998-05-22 | 2003-10-21 | Daniel W. King | Continuous production of plastic siding panels with separate shingle appearance |
WO2000012293A1 (fr) * | 1998-08-28 | 2000-03-09 | General Electric Company | Appareil et procede pour imprimer une texture a un produit d'extrusion thermoplastique |
JP3398954B2 (ja) * | 1999-03-23 | 2003-04-21 | 住友電気工業株式会社 | 合成樹脂線材の製造方法 |
AT412770B (de) | 2001-06-26 | 2005-07-25 | Greiner Extrusionstechnik Gmbh | Formgebungseinrichtung für eine extrusionsanlage |
US7282242B2 (en) * | 2003-04-23 | 2007-10-16 | Ferro Corporation | Multilayer polymer structure |
BR112012018097B1 (pt) * | 2010-01-22 | 2021-03-23 | Tubi Pty Ltd | Aparelho de formação de tubo de plástico modular, sistema de formação de tubo, e método para formar tubo de plástico empregando o aparelho de formação de tubo de plástico modular |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2375827A (en) * | 1941-08-20 | 1945-05-15 | Extruded Plastics Inc | Extruded plastic section |
US2976567A (en) * | 1957-10-16 | 1961-03-28 | Dow Chemical Co | Process and apparatus for upgrading thermoplastic film |
US3281516A (en) * | 1963-06-18 | 1966-10-25 | United States Gypsum Co | Process for making facing for siding |
US3454693A (en) * | 1963-10-23 | 1969-07-08 | Helene M Crenshaw | Process for forming plastic objects |
US3430994A (en) * | 1967-03-15 | 1969-03-04 | Keeler Brass Co | Insulating handle connector and method of making same |
US3555135A (en) * | 1968-02-29 | 1971-01-12 | Phillips Petroleum Co | Stress relieving of molded plastic structures |
US3886250A (en) * | 1971-02-26 | 1975-05-27 | Color Custom Compounding Inc | Method and apparatus for making an extruded article of rigid plastic with a grained surface |
US3899561A (en) * | 1972-04-12 | 1975-08-12 | Certain Teed Prod Corp | Method of making plastic siding |
-
1977
- 1977-04-06 US US05/785,264 patent/US4115495A/en not_active Expired - Lifetime
-
1978
- 1978-02-24 CA CA297,834A patent/CA1095211A/fr not_active Expired
- 1978-03-02 AU AU33750/78A patent/AU3375078A/en active Pending
- 1978-03-14 DE DE19782811450 patent/DE2811450A1/de active Pending
- 1978-03-21 SE SE7803238A patent/SE7803238L/xx unknown
- 1978-03-31 IT IT21881/78A patent/IT1094034B/it active
- 1978-04-03 NL NL7803519A patent/NL7803519A/xx not_active Application Discontinuation
- 1978-04-03 FR FR7809813A patent/FR2386408A1/fr not_active Withdrawn
- 1978-04-05 JP JP3930778A patent/JPS53125468A/ja active Pending
- 1978-04-06 BE BE186623A patent/BE865761A/fr unknown
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2505247A1 (fr) * | 1981-05-07 | 1982-11-12 | Idemitsu Petrochemical Co | Procede et appareil pour produire une feuille ou pellicule a orientation biaxiale |
US4685879A (en) * | 1985-06-13 | 1987-08-11 | Puerstinger Franz | Calibrator for extruded material |
EP0425942A2 (fr) * | 1989-10-31 | 1991-05-08 | INOEX GmbH | Dispositif de calibrage et de refroidissement pour un tube extrudé en matière plastique |
EP0425942A3 (en) * | 1989-10-31 | 1991-07-17 | Inoex Gmbh | Calibration and cooling apparatus for extruded plastic tubes |
EP0936052A1 (fr) * | 1998-02-04 | 1999-08-18 | Röhm Gmbh | Dispositif pour la calibration de profilés creux extrudés en matière plastique |
US6368098B2 (en) | 1998-02-04 | 2002-04-09 | Roehm Gmbh Chemische Fabrik | Apparatus for the calibration of hollow chamber sheet extruded lines |
Also Published As
Publication number | Publication date |
---|---|
JPS53125468A (en) | 1978-11-01 |
SE7803238L (sv) | 1978-10-07 |
IT1094034B (it) | 1985-07-26 |
AU3375078A (en) | 1979-09-06 |
IT7821881A0 (it) | 1978-03-31 |
CA1095211A (fr) | 1981-02-10 |
DE2811450A1 (de) | 1978-10-12 |
BE865761A (fr) | 1978-07-31 |
US4115495A (en) | 1978-09-19 |
NL7803519A (nl) | 1978-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |