EP3152182A1 - Procédé de réalisation d'un matériau de construction à base de chaux et matériau de construction obtenu - Google Patents
Procédé de réalisation d'un matériau de construction à base de chaux et matériau de construction obtenuInfo
- Publication number
- EP3152182A1 EP3152182A1 EP15736171.8A EP15736171A EP3152182A1 EP 3152182 A1 EP3152182 A1 EP 3152182A1 EP 15736171 A EP15736171 A EP 15736171A EP 3152182 A1 EP3152182 A1 EP 3152182A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lime
- main component
- filler
- added
- mixed
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/14—Minerals of vulcanic origin
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/02—Cellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the present invention relates to a process for the preparation of a building material based on lime, in which the main component is lime called "hydrated lime” to which is mixed a filler of organic and / or mineral origin to achieve a structural mass to which is added a determined volume of water calculated according to the volume of said structural mass to produce a curable and curable paste.
- the main component is lime called "hydrated lime” to which is mixed a filler of organic and / or mineral origin to achieve a structural mass to which is added a determined volume of water calculated according to the volume of said structural mass to produce a curable and curable paste.
- It also relates to a lime-based building material, in which the main component is lime called "hydrated lime” mixed with a filler of organic and / or mineral origin to produce a structural mass to which a determined volume is added. of water, this volume being calculated according to the mass of said structural mass to produce a curable and curable paste.
- lime-based building material in which the main component is lime called "hydrated lime” mixed with a filler of organic and / or mineral origin to produce a structural mass to which a determined volume is added. of water, this volume being calculated according to the mass of said structural mass to produce a curable and curable paste.
- lime-based structures has taken on a certain magnitude since the builders have realized that this material has exceptional qualities in terms of both sound insulation and thermal insulation and concerning hydraulic exchanges.
- Lime and particle or fiber blends have been developed, including but not limited to wood chips and hemp fibers to make screeds, partitions, insulating liners for doubling existing walls, bulkhead fills for wooden frame houses. The results are indisputable, so that this material certainly has a secure future if we consider changing buildings to ecological solutions, looking for simple, natural methods to make recyclable products, promoting energy saving.
- hydraulic lime is a processed product that is commonly found only in industrialized countries and is indisputably more expensive than hydrated lime, almost natural worldwide, at low cost.
- the problem of hydrated lime is that of taking this material for its hardening. Currently this catch is very slow, which constitutes a handicap for the use of the material, in spite of the advantages that it presents elsewhere. As a result, it is almost unusable in practice.
- German Patent No. 16753, of 1881 discloses a method of manufacturing a mass for the construction of parts of a building, including a fire blanket and a floor.
- the mixture of materials as described by this patent and in particular by the two claims 1 and 2 comprises inter alia in particular slaked lime and cement added components relatively disparate, minerals such as gypsum, chalk, sand and organic such as blood.
- the presence of cement has the advantage of accelerating the hardening of the mass, but a major disadvantage of preventing the natural carbonation of lime which has the advantage of being achieved through a natural and progressive absorption of carbon dioxide. As a result, the method described does not meet the problem solved by the present invention.
- the present invention proposes to overcome the aforementioned drawbacks by providing a method which makes it possible to solve the problem of the curing time of the construction material obtained, by accelerating the setting of the hydrated lime.
- the process makes this material advantageous for its hydraulic and thermal qualities, compatible with industrial use and allows it to retain the absorption capacity of carbon dioxide for natural carbonation.
- said powder based on natural materials of volcanic origin contains at least pozzolan.
- said powder based on natural materials of volcanic origin is finely ground and consists of particles between 10 ⁇ and 500 ⁇ and preferably between 10 m and 50 ⁇ .
- said charge mixed with said main component comprises particles and / or plant fibers.
- the proportion of filler in the form of hemp chips is advantageously between 20% and 200% and preferably between 50% and 80% of the weight of the main component.
- the proportion of said powder based on natural materials of volcanic origin is advantageously between 5% and 25% and preferably between 10% and 20% of the weight of the main component.
- the main component, the filler and the additive are advantageously initially mixed dry before the addition of water.
- the main component and the filler are mixed, then the water is added and finally the additive is added later.
- the building material based on lime is characterized in that it comprises an additive composed of at least one powder based on natural materials of volcanic origin.
- said powder based on natural materials of volcanic origin comprises at least pozzolan.
- Said powder based on natural materials of volcanic origin is preferably finely ground and consists of particles of between 10 .mu.m and 500 .mu.m and preferably between 10 .mu.m and 50 .mu.m.
- Said filler mixed with said main component advantageously comprises particles and / or plant fibers, in particular particles or vegetable fibers consist of products chosen from the group consisting of wood, hemp, kenaf, coconut, reeds.
- said charge mixed with said main component comprises hemp chips.
- the proportion of filler in the form of hemp chips is advantageously between 20% and 200% and preferably between 50% and 80% of the weight of the main component.
- the proportion of said powder based on natural materials of volcanic origin is advantageously between 5% and 25% and preferably between 10% and 20% of the weight of the main component.
- the lime commonly used in this context is hydraulic lime obtained from calcium carbonate Ca 2 O 3, treated in a furnace. high temperature, between 1200 ° C and 1500 ° C. This treatment has the effect of mainly transforming calcium carbonate into hydraulic lime, but also produces a certain amount of Portland cement cement, which is obtained by a treatment of calcium carbonate in an oven at a temperature of the order of 1800 ° C.
- a mixture of hydraulic lime and Portland cement that is usually used, resulting in some degradation of the hydraulic qualities of the lime, due to the presence of the inert material in the form of Portland cement. Due to the presence of cement the setting of the hydraulic lime mixture is relatively fast, so that the material obtained can be used substantially as concrete to make a screed or a facade cladding or the like.
- a mixture made from hydraulic lime and chips or organic fibers such as hemp and used as a common construction material has between 40 Kg and 70 Kg and preferably between 50 Kg and 60 Kg. hydraulic lime for an amount of organic elements of between 15 Kg and 25 Kg and preferably about 20 Kg.
- the specific gravity of this mixture is relatively high and its thermal insulation capacity is relatively low.
- hydraulic lime does not reduce the density and increase the insulating characteristics.
- use of hydraulic lime increases the cost of the building material.
- hydraulic lime which is an inert material, does not have the absorption capacity of hydrated lime, namely that of absorbing large quantities of carbon dioxide and subjecting the material to natural carbonation while by storing the excess CO2 contained in the atmosphere.
- the composition of the mixture is as follows: the main component is the hydrated lime, the filler in the form of inorganic or organic particles in the form of chips, in particular hemp chips and the additive in the form of powders based on natural materials of volcanic origin, including pozzolana.
- the proportion of The filler in the form of hemp chips is between 20% and 200% and preferably between 50% and 80% of the weight of the component, namely the hydrated lime.
- Said powder based on natural materials of volcanic origin is finely ground and consists of particles of between 10 .mu.m and 500 .mu.m and preferably between 10 .mu.m and 50 .mu.m.
- the proportion of said powder based on natural materials of volcanic origin is between 5% and 25% and preferably between 10% and 20% of the weight of the main component.
- the composition of the construction material according to the invention can be as follows: for 25 kg of hydrated lime to which approximately 20 kg of hemp and 3 kg to 5 kg of additives, for example pozzolan.
- the resulting building material has a reduced density, so that its weight is about 230 Kg / m 3 . Its thermal insulation qualities are increased, as well as its wettability and its ability to absorb moisture.
- the additive significantly increases the binding of hydrated lime particles, facilitates mixing during the preparation of the "dough" at the time of the addition of water.
- the mixture is more homogeneous and it is found that the formation of "pellets” which characterizes traditional preparations with hydraulic lime is not done in this case.
- the density of the material obtained is lower than that produced with hydraulic lime.
- the hardening is partially, but sufficiently thanks to the volcanic additive. The complete hardening is carried out over time, in the form of natural carbonation, by absorption of the carbon dioxide (CO2) contained in the atmosphere.
- the object of the invention is to allow the use of hydrated lime, or slaked lime as a base of a building material with a setting time fast enough to allow industrial application. This speed is achieved thanks to the additive.
- hydrated lime is an economical material and is found virtually worldwide, even in non-industrialized countries that are not equipped to manufacture cement.
- the qualities of the realized constructions are durable in time, because the carbonation hydrated lime occurs naturally thanks to natural exchanges and humidity.
- Volcanic powder is an economic material present on all ancient or active volcanic sites. Buildings are environmentally friendly because they are recyclable, gray energy is minimal, and they are economical because components can be found near construction sites.
- the invention is not limited to the use of hemp and pozzolan, but can be extended to similar materials having the same characteristics.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00857/14A CH709733B1 (fr) | 2014-06-04 | 2014-06-04 | Matériau de construction à base de chaux hydratée et son procédé de réalisation. |
PCT/CH2015/000085 WO2015184559A1 (fr) | 2014-06-04 | 2015-06-03 | Procede de realisation d'un materiau de construction a base de chaux et materiau de construction obtenu |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3152182A1 true EP3152182A1 (fr) | 2017-04-12 |
Family
ID=51986960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15736171.8A Ceased EP3152182A1 (fr) | 2014-06-04 | 2015-06-03 | Procédé de réalisation d'un matériau de construction à base de chaux et matériau de construction obtenu |
Country Status (4)
Country | Link |
---|---|
US (1) | US10266451B2 (fr) |
EP (1) | EP3152182A1 (fr) |
CH (1) | CH709733B1 (fr) |
WO (1) | WO2015184559A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3092577B1 (fr) * | 2019-02-07 | 2022-04-29 | Pouzzolanes Des Domes | Composition pour un enduit destiné à recouvrir une paroi |
US11905212B1 (en) * | 2020-01-20 | 2024-02-20 | The National Lime And Stone Company | Method of forming a non-dispersible granular substrate and the granular substrates formed thereby |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5249233A (en) * | 1975-10-18 | 1977-04-20 | Ibigawa Electric Ind Co Ltd | Method of producing hardend body |
EP2404885A2 (fr) * | 2010-07-06 | 2012-01-11 | Quick-Mix Gruppe Gmbh & Co. Kg | Nouveaux mélanges de matériaux de construction |
WO2013076503A1 (fr) * | 2011-11-24 | 2013-05-30 | Fibrelime Limited | Matériau de construction |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE16753C (de) * | 1900-01-01 | L. MATSCHKE, vereid. Feldmesser, und A. KÜHLE-WEIN in Berlin W., Kurfürstenstr. 168 und Borsigstrafse 17I | Verfahren zur Herstellung einer für Dachbedeckung, für feuersichere Decken und zu Fufsbodenestrich geeigneten Masse | |
FR971739A (fr) * | 1947-08-23 | 1951-01-22 | Matière servant particulièrement à la confection d'éléments de construction préfabriqués | |
US4799961A (en) * | 1986-08-19 | 1989-01-24 | Friberg Walter R | Cementuous fiber impregnated construction composition and process for formation thereof |
DE19643605C2 (de) * | 1996-10-14 | 1999-01-21 | Schiller Heiko | Wärmedämmender Baustoff und dessen Verwendung |
FR2923242A1 (fr) * | 2007-11-05 | 2009-05-08 | Lhoist Rech Et Dev Sa Sa Belge | Procede de projection en continu de beton de faible densite |
FR2946640B1 (fr) * | 2009-06-16 | 2011-06-24 | Univ Toulouse 3 Paul Sabatier | Materiau composite de construction incorporant de la chenevotte de chanvre. |
-
2014
- 2014-06-04 CH CH00857/14A patent/CH709733B1/fr not_active IP Right Cessation
-
2015
- 2015-06-03 US US15/316,369 patent/US10266451B2/en active Active
- 2015-06-03 EP EP15736171.8A patent/EP3152182A1/fr not_active Ceased
- 2015-06-03 WO PCT/CH2015/000085 patent/WO2015184559A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5249233A (en) * | 1975-10-18 | 1977-04-20 | Ibigawa Electric Ind Co Ltd | Method of producing hardend body |
EP2404885A2 (fr) * | 2010-07-06 | 2012-01-11 | Quick-Mix Gruppe Gmbh & Co. Kg | Nouveaux mélanges de matériaux de construction |
WO2013076503A1 (fr) * | 2011-11-24 | 2013-05-30 | Fibrelime Limited | Matériau de construction |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015184559A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20170183264A1 (en) | 2017-06-29 |
CH709733A1 (fr) | 2015-12-15 |
US10266451B2 (en) | 2019-04-23 |
WO2015184559A1 (fr) | 2015-12-10 |
CH709733B1 (fr) | 2018-07-13 |
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