WO1999042283A1 - Vitrage anti-laceration - Google Patents
Vitrage anti-laceration Download PDFInfo
- Publication number
- WO1999042283A1 WO1999042283A1 PCT/FR1999/000395 FR9900395W WO9942283A1 WO 1999042283 A1 WO1999042283 A1 WO 1999042283A1 FR 9900395 W FR9900395 W FR 9900395W WO 9942283 A1 WO9942283 A1 WO 9942283A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glazing
- laceration
- laminated glazing
- use according
- glass
- Prior art date
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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10082—Properties of the bulk of a glass sheet
- B32B17/10091—Properties of the bulk of a glass sheet thermally hardened
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10743—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing acrylate (co)polymers or salts thereof
-
- 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
- B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
Definitions
- the invention belongs to the field of glazing and is, in particular, relating to the protection of persons near a glazing when the latter is broken.
- the sinking of the glazing towards the passenger compartment originating in particular sometimes from the folding of the bodywork elements or of the frame which contains the glazing constitutes, in this respect, quite understandably, a circumstance all the more aggravating since it occurs with training glazing profiles in more acute angles penetrating inside the passenger compartment. Indeed, some shards of broken glass located near such relatively sharp angles have sharp edges directed towards the occupants. We obviously try to minimize as much as possible the laceration affecting the faces of the occupants.
- patent application EP 0 418 123 A1 describes the improvement of the acoustic attenuation properties, obtained by using a suitable interlayer 0.8 to 2.0 mm thick.
- This interlayer is made of a vinyl chloride-glycidyl methacrylate copolymer; certain thermoplastic PUs may also be suitable, PVB being on the contrary avoided.
- Patent application EP 0 816 064 A1 relates to the lightening of the same type of glazing with maintenance of satisfactory mechanical properties, in particular in flexural strength.
- the use of thin glass sheets, of thicknesses approximately equal to 0.5 mm, is made possible by the use of particular, relatively hard spacers, having a Young's modulus at least equal to 20 MPa, such as an ionomer resin, certain polyurethanes, certain polyesters, poly (ethylene terephthalate), certain acrylic resins.
- the subject of the invention is the use of laminated glazing essentially consisting of two sheets of glass connected by means of an intermediate adhesive layer of thickness greater than
- the anti-laceration property is assessed on mannequins according to tests described in the publication "Pickard J., Brereton P., Hewson A.: An objective method of assessing laceration damage to simulated facial tissues - The Triplex Laceration Index - Proceeding of 17 111 Lecture - American Association of Automotive Medicine 1973 - Pages 148-165 ”.
- This publication defines a measurement scale for laceration between 0 and around 13 in practice, or even higher, observed on the head of a vinyl mannequin, covered with two calibrated leathers.
- the parameter noted, called TLI for Triplex Laceration Index
- TLI Triplex Laceration Index
- the glazing is used as anti-laceration glazing in the non-intact state or, in other words, as glazing having anti-laceration properties vis-à-vis an occupant or of a dummy hitting it when it is already broken. It is easy to understand that the laceration is much greater under these conditions than when the occupant strikes an integral glazing surface which only fragments afterwards.
- a second variant of the invention preferred to the previous one, corresponds to even more demanding conditions for measuring the anti-laceration property. This is the use of laminated glazing defined above as glazing having anti-laceration properties in the non-integral and folded state.
- This variant particularly refers to the case of glazing mounted, as part of the experiment, in a frame articulated along at least one axis; in the event of an impact from outside the vehicle, a frame of this type undergoes angular deformation up to a predetermined minimum angle, slightly less than 180 °, causing the glazing to sink into a short distance in the passenger compartment.
- the glazing Along the hinge axis of the frame, the glazing has a rounded U-shaped top or a V-shaped edge, as the case may be.
- the pieces of glass located near the axis of articulation are all the more dangerous as their edges are directed with a certain incident angle towards the occupants.
- anti-laceration glazing within the meaning of the invention, is meant a glazing with anti-laceration properties significantly improved compared to those of a conventional laminate, in particular automotive side glazing including the TLI, measured under extremely rigorous conditions such as on non-integral and folded glazing, does not exceed 7, and in a particularly preferred manner 6.
- the thickness of the interlayer adhesive layer does not exceed 2 mm, or even 1.90 mm or even 1.53 mm. Indeed, increasing this thickness to higher values no longer provides a significant improvement in the anti-laceration effect, but has as main consequence an increase and an increase in the cost of the glazing.
- any plastic material usually used as an adhesive between two sheets of glass can be retained, it being understood that the total thickness of the interlayer layer is greater than 0.76 mm.
- Polyvinyl butyral, polyurethane, in particular thermoplastic polyurethane, RIM polyurethane, are well suited for this purpose, 5 polycarbonate, poly (methyl methacrylate), polypropylene, ethylene / vinyl acetate copolymer, cycloolefinic copolymer, polyethylene in particular in the form of an ionomer resin such as a (meth) acrylic acid and ethylene copolymer, neutralized by a polyamine, thermoplastic polyester, in particular poly (ethylene terephthalate), unsaturated thermosetting polyester, optionally modified acrylic resin, vinyl chloride / glycidyl methacrylate copolymer.
- the intermediate adhesive layer may consist of a single layer based on one of these plastics, combined with the usual additives, in particular with plasticizers in variable proportions.
- the standard PVB, as well as its "acoustic" grade, are perfectly suitable as well as other compositions having excellent acoustic attenuation properties, as described in application EP 0 418 123 A1.
- the intermediate adhesive layer consists of a stack of thickness greater than 0.76 mm of several layers as they have just been defined.
- stacks with acoustic weakening properties consisting for example of a layer of PVB or other material suitable for the present invention and a layer of an acoustic resin separated by a barrier film of poly (terephthalate d 'ethylene), as described in patent application EP 0 763 420 A1, the content of which is incorporated herein by reference.
- each of the two glass sheets of the laminated glazing has a thickness of between 0.1 and 3 mm, in particular at least equal to 1.5 mm, and has a compression stress at heart in the central zone of between 1 and 50 MPa, advantageously at least equal to 20 MPa.
- the glass used is float glass, more or less toughened, that is to say from the fully toughened state to simply annealed and, preferably, semi-toughened.
- the invention also relates to the use of laminated glazing comprising at least one functional layer. This can consist of one of the layers or sheets 6 described above, obtained by incorporating the desired function in this layer or this sheet, the composition of which is chosen in a manner suitable for this purpose.
- It can also be a more or less thin layer or a film interposed between a glass sheet and the interlayer adhesive layer or between two constituent layers of this interlayer adhesive, or alternatively a layer or a functional film directly in contact with the ambient air, either outside or inside the vehicle.
- a functional layer may consist of a hydrophobic / oleophobic layer, grafted in the form of a thin layer of thickness between 2 and 50 nm on the outer surface of a glass sheet, or self-supported on a plastic film such as poly (vinyl fluoride) (PVF) or poly (vinylidene fluoride) (PVDF) applied to the exterior surface of the glass sheet.
- the functional layer also comprises a decorative and / or masking layer, covering all or part of the surface of the laminated glazing.
- This layer can, for example, replace the screen-printed decoration frequently deposited on the periphery of the interior face of glazing, in particular for motor vehicles, in order to mask, for an observer located outside the vehicle, the bodywork elements forming the frame of the bay and the bead of glue which is thus protected from degradation by ultraviolet radiation. It may include elements of opaque or transparent colored decoration, making it possible to produce elements of color matching the bodywork or interior equipment, logos, etc.
- the optically selective layers consisting of stacks of layers which are distinguished by a high transmission in the visible range (wavelengths from 400 to 800 nm) and absorption and / or reflection high in the ultraviolet ( ⁇ 400 nm) and infrared (> 800 nm) range.
- These layers may consist of thin metallic layers, for example based on silver, of thicknesses between 2 and 7 35 nm, separated from each other as well as from other adjacent layers or films by dielectric layers of indium oxides or nitrides, tin, silicon, zinc, titanium, tungsten, tantalum, niobium, aluminum, zirconium ..., thicknesses generally between 10 and 150 nm.
- These layers can comprise at least one colored layer in the mass.
- All of these layers can conduct electricity; it can belong to the family of anti-solar stacks, used to limit the supply of heat by solar radiation in closed spaces or to that of low-emissive stacks, used on the contrary to limit the heat loss in closed spaces, mainly due to transmission of infrared radiation through the glazing.
- anti-solar stacks used to limit the supply of heat by solar radiation in closed spaces or to that of low-emissive stacks, used on the contrary to limit the heat loss in closed spaces, mainly due to transmission of infrared radiation through the glazing.
- the functional layers are formed in a known manner by application of liquid precursors, according to conventional flow-coating techniques, quenching, spraying of liquid or curtain, by pyrolysis or by evaporation according to techniques such as CVD (Chemical Vapor Deposition), plasma, possibly under vacuum.
- the decor and masking layer (s) is (are) provided on support films, in particular made of plastic, according to techniques used in printing: screen printing, flexography, inkjet, laser printing.
- optically selective stacks calls for successive depositions by sputtering, in particular assisted by magnetic field or the like.
- the formation of the functional layers is completed with the possible application of heating and / or in particular ultraviolet radiation, according to polymerization, sol-gel, crosslinking, etc. processes.
- the laminated glazing comprises, on at least one of its external faces, a plastic sheet. It is very particularly a sheet having anti-laceration and, possibly, self-healing properties. 8 disposed on the face of the glazing facing the passenger compartment of the vehicle or the interior of the building.
- a plastic sheet comprises, for example, a layer of thermoplastic polyurethane serving for adhesion to the glass sheet, and a layer of outer thermosetting polyurethane, that is to say in direct contact. with the atmosphere of the passenger compartment or the interior of the building; it is described in patent FR 2 398 606, incorporated here for reference, and improves the anti-laceration properties of the glazing.
- the use according to the invention is very particularly aimed at automobile glazing and, preferably, any fixed or movable automotive lateral glazing, for example vertically.
- Use as a windshield and rear window can be considered to be part of the invention by analogy, although the technical problem which it solves and, in particular the definition of TLI below, relates exclusively to side automobile glazing; in the same way, use as building glazing is also within the scope of the invention.
- the TLI Triple Laceration Index
- lateral automobile glazing made up of two sheets of float glass 2, 1 mm thick, sandwiching a PVB interlayer of variable thickness.
- One of the glass sheets is simply annealed, that is to say it has not been subjected to any tempering; the other was partially hardened, to a degree corresponding to a surface stress of 45 ⁇ 10 MPa, which is equivalent to a compressive stress at the core in the central zone approximately equal to 22 ⁇ 5 MPa.
- the measurement is carried out on a mannequin which strikes the broken glazing mounted in an articulated frame having undergone an angular deformation corresponding to a depression of the glazing of 75 mm in the passenger compartment at the level of the axis of articulation.
- the glazing has a length of 600 mm and a width of 450 mm.
- the measured TLI is recorded in the table below for each thickness of PVB and type of glass used.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Joining Of Glass To Other Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9908167-9A BR9908167A (pt) | 1998-02-23 | 1999-02-22 | Utilização de uma vidraça laminada |
PL99342544A PL342544A1 (en) | 1998-02-23 | 1999-02-22 | Anti-splatter glazing |
EP99904928A EP1060075A1 (fr) | 1998-02-23 | 1999-02-22 | Vitrage anti-laceration |
JP2000532268A JP2002503627A (ja) | 1998-02-23 | 1999-02-22 | 裂傷防止ガラス |
KR1020007009250A KR20010034521A (ko) | 1998-02-23 | 1999-02-22 | 열상 방지 글레이징 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9802136A FR2775282B1 (fr) | 1998-02-23 | 1998-02-23 | Utilisation d'un vitrage feuillete a couche intercalaire epaisse comme vitrage anti-laceration |
FR98/02136 | 1998-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999042283A1 true WO1999042283A1 (fr) | 1999-08-26 |
Family
ID=9523241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/000395 WO1999042283A1 (fr) | 1998-02-23 | 1999-02-22 | Vitrage anti-laceration |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1060075A1 (fr) |
JP (1) | JP2002503627A (fr) |
KR (1) | KR20010034521A (fr) |
BR (1) | BR9908167A (fr) |
FR (1) | FR2775282B1 (fr) |
PL (1) | PL342544A1 (fr) |
WO (1) | WO1999042283A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4884575B2 (ja) | 2010-05-13 | 2012-02-29 | 三井・デュポンポリケミカル株式会社 | 多層材料、太陽電池用封止材、安全(合わせ)ガラス用中間膜、太陽電池モジュール及び安全(合わせ)ガラス |
BE1020755A3 (fr) * | 2012-06-19 | 2014-04-01 | Agc Glass Europe | Toit vitre de vehicule automobile. |
US10899112B2 (en) * | 2014-11-10 | 2021-01-26 | Kuraray Co., Ltd. | Interlayer film for laminated glass and laminated glass |
JPWO2019098335A1 (ja) * | 2017-11-16 | 2020-12-17 | 有限会社サンサーラコーポレーション | ガラス貼り合わせ用中間フィルム、及びそれを使用した貼り合わせガラス |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816064A1 (fr) * | 1996-06-25 | 1998-01-07 | Saint-Gobain Vitrage | Vitrage composite en verre et matière plastique et procédé de détermination des paramètres géométriques optimaux de ce vitrage |
-
1998
- 1998-02-23 FR FR9802136A patent/FR2775282B1/fr not_active Expired - Fee Related
-
1999
- 1999-02-22 WO PCT/FR1999/000395 patent/WO1999042283A1/fr not_active Application Discontinuation
- 1999-02-22 KR KR1020007009250A patent/KR20010034521A/ko not_active Application Discontinuation
- 1999-02-22 PL PL99342544A patent/PL342544A1/xx not_active Application Discontinuation
- 1999-02-22 BR BR9908167-9A patent/BR9908167A/pt not_active Application Discontinuation
- 1999-02-22 JP JP2000532268A patent/JP2002503627A/ja not_active Withdrawn
- 1999-02-22 EP EP99904928A patent/EP1060075A1/fr not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0816064A1 (fr) * | 1996-06-25 | 1998-01-07 | Saint-Gobain Vitrage | Vitrage composite en verre et matière plastique et procédé de détermination des paramètres géométriques optimaux de ce vitrage |
Also Published As
Publication number | Publication date |
---|---|
FR2775282B1 (fr) | 2000-04-14 |
BR9908167A (pt) | 2000-10-31 |
FR2775282A1 (fr) | 1999-08-27 |
JP2002503627A (ja) | 2002-02-05 |
PL342544A1 (en) | 2001-06-18 |
KR20010034521A (ko) | 2001-04-25 |
EP1060075A1 (fr) | 2000-12-20 |
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