GB2149719A - A method of bonding a laminated assembly - Google Patents
A method of bonding a laminated assembly Download PDFInfo
- Publication number
- GB2149719A GB2149719A GB08330297A GB8330297A GB2149719A GB 2149719 A GB2149719 A GB 2149719A GB 08330297 A GB08330297 A GB 08330297A GB 8330297 A GB8330297 A GB 8330297A GB 2149719 A GB2149719 A GB 2149719A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate sections
- adjoining
- adhesive
- bonding
- bead
- 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- Withdrawn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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/482—Drying adhesives, e.g. solvent based adhesives
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
- B29C65/487—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their shape, e.g. being fibres or being spherical
- B29C65/4875—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their shape, e.g. being fibres or being spherical being spherical, e.g. particles or powders
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
- B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
- B29C65/7826—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being non-integral with the parts to be joined, e.g. particles
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/536—Joining substantially flat single elements to hollow articles to form tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
- B29C65/4885—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their composition being non-plastics
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
- B29C65/4885—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their composition being non-plastics
- B29C65/489—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives characterised by their composition being non-plastics being metals
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
A bonding agent comprising an adhesive 6 impregnated with bead-like particles 7 of plastic, glass or metal, of substantially uniform size is applied to at least one face of adjoining plate sections 2, 3 of a laminated pipe bracket assembly 1 so that, when they are clamped together, the adjoining plate sections are bonded with a bond line thickness corresponding to the size of the bead-like particles 7. <IMAGE>
Description
SPECIFICATION
A method of bonding a laminated assembly
The present invention is concerned with laminated pipe brackets or the like, and particularly with a method of bonding the laminations together to form a pipe bracket.
In laminated assemblies containing valve devices or other operating devices, the adjoining plate sections of the assembly are connected together by bolts, which enables the assembly to be dismantled to service the operating mechanisms contained in the valve assembly. On the other hand, laminated assemblies containing only passageways, such as the well-known pipe brackets employed with railway brake control valves, for example, need not be serviced and therefore can be permanently assembled by bonding together the adjoining plates forming the assembly.
The passageways in these pipe brackets are usually formed at the interface of the adjoining plate laminations by forming channels in the face of one plate section, with the face of the mating plate section closing the channels to form the passageways.
The adhesive used to bond the plate laminations serves .the additional function of sealing the area between the passageways.
To obtain maximum strength of the bond, the bond line thickness must be closely controlled. Accordingly, it is common practice to use shims between the adjoining plate laminations to establish the desired thickness of the bond. The mating faces of the adjoining plate sections are coated with adhesive and then clamped together following placement of the shims. The shims support the clamping force and thereby establish the desired bond line thickness. To ensure full contact of the adhesive with the adjoining plate sections in this case, it is necessary to apply an excessive amount of adhesive. Thus, when the adjoining plate sections are pressed together, this excess adhesive squeezes out until the desired bond line thickness is obtained, as determined by the shim thickness.
Extreme care is required in piacing these shims at various locations on the surfaces to be bonded and this is time-consuming and thus expensive. Also, the considerable waste of adhesive is expensive.
According to this invention a method of bonding together adjoining plate sections of a laminated assembly comprises the steps of:
(a) mixing a plurality of bead-like particles with an adhesive to form a bonding agent;
(b) coating the face of at least one of the adjoining plate sections with the bonding agent; and,
(c) clamping the adjoining plate sections together until the bonding agent dries, or cures, so that the bead-like particles establish a bond line having a thickness corresponding to the size of the bead-like particles.
A particular example of a method of making a pipe bracket assembly in accordance with this invention will now be described with reference to the accompanying single figure drawing which is a partial cross-section through a laminated assembly in which adjoining plates are bonded together to form passageways.
A laminated pipe bracket assembly 1 comprising a pair of adjoining plate sections 2 and 3, are bonded together with a suitable adhesive, such as an epoxy resin. The purpose of the laminated pipe bracket assembly 1 is to form passageways 4 in a simplified and less costly manner. Channels 5 are formed in the face of one plate section 2. These channels are closed to form the desired passageways, by bonding the adjoining plate section 3 in place. The bonded joint 6 between the plate sections 2 and 3 serves as a seal between adjacent passageways 4 formed by the channels 5, in addition to securing the plate sections together.
To obtain optimum bond strength between plate sections 2 and 3, and size uniformity of the respective laminated assemblies 1, it is desirable to establish and maintain a predetermined bond line thickness. This is accomplished by premixing a plurality of uniformly-sized beads 7 with the bonding adhesive. These beads may be of a plastic, glass, metal, or other materiai. The prepared bonding agent is applied to the adjoining faces of plate sections 2 and 3, after which the adjoining faces are pressed together and clamped in place. The beads 7 are interspersed randomly throughout the adhesive, and are of sufficient strength to withstand the clamping force exerted between the plates 2 and 3, and thereby establish the desired bond line thickness. In addition, the beads 7 aid in leveling the adhesive to approximately the proper thickness before clamping.
The bead-impregnated bonding agent eliminates the need for shims and the time-consuming task of locating them. Furthermore, in applying the bonding agent, the beads 7 tend to serve as a leveling guide to minimize the excess adhesive required to assure proper bonding and thus reduce adhesive waste. The resultant method of bonding is thus more efficient and less costly.
1. A method of bonding together adjoining plate sections of a laminated assembly comprising the steps of:
(a) mixing a plurality of bead-like particles with an adhesive to form a bonding agent;
(b) coating the face of at least one of the adjoining plate sections with the bonding agent; and,
(c) clamping the adjoining plate sections together until the bonding agent dries, or cures, so that the bead-like particles establish a bond line having a thickness corresponding to the size of the bead-like particles.
2. A method according to claim 1, in which the bead-like particles are substantially uniform in size.
3. A method according to claim 1 or 2, in which one of the adjoining plate sections is formed with at least one channel in its face.
4. A method according to any one of the preceding claims, in which the adjoining plate sections form a laminated pipe bracket.
5. A method substantially as described with ref
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A method of bonding together adjoining plate sections of a laminated assembly comprising the steps of:
(a) mixing a plurality of bead-like particles with an adhesive to form a bonding agent;
(b) coating the face of at least one of the adjoining plate sections with the bonding agent; and,
(c) clamping the adjoining plate sections together until the bonding agent dries, or cures, so that the bead-like particles establish a bond line having a thickness corresponding to the size of the bead-like particles.
2. A method according to claim 1, in which the bead-like particles are substantially uniform in size.
3. A method according to claim 1 or 2, in which one of the adjoining plate sections is formed with at least one channel in its face.
4. A method according to any one of the preceding claims, in which the adjoining plate sections form a laminated pipe bracket.
5. A method substantially as described with ref erence to the accompanying drawing.
6. The method according to any one of the preceding claims, wherein the bead-like particles are of sufficient strength to support the force with which the plate sections are clamped together, whereby the thickness of the bond line formed between the plate sections is determined by the size of the beads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08330297A GB2149719A (en) | 1983-11-14 | 1983-11-14 | A method of bonding a laminated assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08330297A GB2149719A (en) | 1983-11-14 | 1983-11-14 | A method of bonding a laminated assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8330297D0 GB8330297D0 (en) | 1983-12-21 |
| GB2149719A true GB2149719A (en) | 1985-06-19 |
Family
ID=10551716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08330297A Withdrawn GB2149719A (en) | 1983-11-14 | 1983-11-14 | A method of bonding a laminated assembly |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2149719A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294754A3 (en) * | 1987-06-12 | 1990-05-30 | Teroson Gmbh | Process and apparatus for bonding two substantially flat elements |
| WO1996032594A1 (en) * | 1995-03-27 | 1996-10-17 | Lotus Cars Limited | Method of manufacture of a structure and a structural member for use in the method |
| EP1106843A1 (en) * | 1999-12-08 | 2001-06-13 | ABB Industry Oy | Duct and method for forming the same |
| US20100044376A1 (en) * | 2006-11-21 | 2010-02-25 | Gyros Patent Ab | Method of bonding a micrifluidic device and a microfluidic device |
| DE19504482B4 (en) * | 1995-02-10 | 2010-04-01 | Martinrea Industries, Inc., Manchester | Method and apparatus for adhesive bonding using non-compressible particles |
| FR2960881A1 (en) * | 2010-06-08 | 2011-12-09 | Astrium Sas | Structural pasting of two parts made of composite material comprises applying adhesive on joining surface of the two parts and pasting two parts by applying solid particles partially encrusted in two parts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154611A (en) * | 1965-06-07 | 1969-06-11 | Douglas Aircraft Co Inc | Glass Laminates. |
| GB1411222A (en) * | 1971-04-21 | 1975-10-22 | Interwest General Corp | Method of manufacturing sandwich elements |
| GB1548226A (en) * | 1976-03-09 | 1979-07-04 | Clarke R W | Joining members together by fusion |
| GB2026385A (en) * | 1978-07-18 | 1980-02-06 | Barchas M | Labelling laminate |
-
1983
- 1983-11-14 GB GB08330297A patent/GB2149719A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154611A (en) * | 1965-06-07 | 1969-06-11 | Douglas Aircraft Co Inc | Glass Laminates. |
| GB1411222A (en) * | 1971-04-21 | 1975-10-22 | Interwest General Corp | Method of manufacturing sandwich elements |
| GB1548226A (en) * | 1976-03-09 | 1979-07-04 | Clarke R W | Joining members together by fusion |
| GB2026385A (en) * | 1978-07-18 | 1980-02-06 | Barchas M | Labelling laminate |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0294754A3 (en) * | 1987-06-12 | 1990-05-30 | Teroson Gmbh | Process and apparatus for bonding two substantially flat elements |
| DE19504482B4 (en) * | 1995-02-10 | 2010-04-01 | Martinrea Industries, Inc., Manchester | Method and apparatus for adhesive bonding using non-compressible particles |
| WO1996032594A1 (en) * | 1995-03-27 | 1996-10-17 | Lotus Cars Limited | Method of manufacture of a structure and a structural member for use in the method |
| US6294043B1 (en) | 1995-03-27 | 2001-09-25 | Lotus Car Limited | Method of manufacture of a structure and a structural member for use in the method |
| EP1106843A1 (en) * | 1999-12-08 | 2001-06-13 | ABB Industry Oy | Duct and method for forming the same |
| US20100044376A1 (en) * | 2006-11-21 | 2010-02-25 | Gyros Patent Ab | Method of bonding a micrifluidic device and a microfluidic device |
| EP2083949A4 (en) * | 2006-11-21 | 2010-07-28 | Gyros Patent Ab | Method of bonding a micrifluidic device and a microfluidic device |
| FR2960881A1 (en) * | 2010-06-08 | 2011-12-09 | Astrium Sas | Structural pasting of two parts made of composite material comprises applying adhesive on joining surface of the two parts and pasting two parts by applying solid particles partially encrusted in two parts |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8330297D0 (en) | 1983-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |