EP4140973A1 - Suspension of explosive composition of pill fuse head for industrial electric detonators - Google Patents

Suspension of explosive composition of pill fuse head for industrial electric detonators Download PDF

Info

Publication number
EP4140973A1
EP4140973A1 EP22020161.0A EP22020161A EP4140973A1 EP 4140973 A1 EP4140973 A1 EP 4140973A1 EP 22020161 A EP22020161 A EP 22020161A EP 4140973 A1 EP4140973 A1 EP 4140973A1
Authority
EP
European Patent Office
Prior art keywords
portions
pill
suspension
explosive composition
electric
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.)
Granted
Application number
EP22020161.0A
Other languages
German (de)
French (fr)
Other versions
EP4140973B1 (en
Inventor
Pavel Valenta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Austin Detonator sro
Original Assignee
Austin Detonator sro
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Austin Detonator sro filed Critical Austin Detonator sro
Publication of EP4140973A1 publication Critical patent/EP4140973A1/en
Application granted granted Critical
Publication of EP4140973B1 publication Critical patent/EP4140973B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/04—Compositions containing a nitrated organic compound the nitrated compound being an aromatic
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B29/00—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate
    • C06B29/02—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal
    • C06B29/16—Compositions containing an inorganic oxygen-halogen salt, e.g. chlorate, perchlorate of an alkali metal with a nitrated organic compound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/128—Bridge initiators characterised by the composition of the pyrotechnic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/08—Primers; Detonators
    • F42C19/12—Primers; Detonators electric

Definitions

  • the invention concerns the suspension of explosive composition of pill fuse head for industrial electric detonators created by dipping technology on its skeleton formed by metal lamellas and a resistance wire.
  • suspensions of explosive compositions in solutions of nitrocellulose or fluoroelastomer in an organic solvent are used for the technology of the production of electric pill fuse heads by dipping.
  • Those suspensions contain an explosive based on a lead salt and other components based on lead and non-lead oxidizers, metal powders, and binders, such as mentioned nitrocellulose or fluoroelastomer.
  • the dipping technology is based on simultaneous immersion of several thousand electric pill skeletons, formed by metal lamellas with a resistance wire, into a suspension of explosive composition, and thus the formation of electric pill fuse heads. These wet fuse heads are then dried out to remove the organic solvent, after which the fuse heads of the electric pills are provided with a lacquer layer of conventional lacquers to ensure mechanical and dimensional strength.
  • suspensions of explosive composition must exhibit constancy of composition and sedimentation of the individual components must not occur.
  • the explosive composition of the pill fuse heads after the organic solvents have been dried out, then coats the resistance wire, which is usually made of a NiCr alloy in a weight ratio of 80/20 and whose diameter ranges from 30 to 100 micrometres, or of a CuNi alloy containing 44% Ni, with a diameter of 170 micrometres.
  • the explosive pill composition determines the electrical parameters of the electric pill with respect to the resistance wire, such as: safe current and ignition current.
  • the electric pill thus formed can be used in an electric industrial detonator, where, after passing a predefined electrical impulse, the resistance wire of the electric pill is heated and subsequently the pill explosive composition is initiated, the burst of flame of which then transmits the heat burst to the pyrotechnic delay composition of the industrial electric detonator.
  • the explosive composition must be sufficiently sensitive to the definably heated resistance wire of the electric pill to ignite it.
  • the created burst of flame, formed by the explosive transformation of the individual components, then must not have an excessive pressure effect, but must have the calorific capacity to initiate the delay pyrotechnic composition of the electric detonator.
  • the organic solvent is amyl acetate, butyl acetate, propyl acetate, or isomers thereof.
  • Such suspension of explosive composition has suitable rheological properties because its individual components do not sediment and it is technologically processable for multiple applications to the electric pill skeleton formed by metal lamellas with the resistance wire forming a bridge, where after the drying operation forms the electric pill fuse head.
  • the listed formula of the suspension of explosive composition applied to the resistance wire of the electric pill then, after drying the organic solvent and providing the lacquer layer, ensures the required sensitivity of the electric pill to initiation when heating the resistance wire of varying material composition and diameter, and the formed fumes after its explosive transformation generate regular burst of flame and allow regular ignition of the pyrotechnic delay composition in the electric detonator.
  • the concerned composition of the fuse head of the electric pill is harmless from the point of view of ecology because it does not contain any non-ecological components and does not create such by its explosive transformation.
  • the explosive composition and its products after the explosive transformation are thus environmentally friendly.
  • the mentioned explosive composition can also be used as a separate electric pill or in an electric igniter assembly also for use in fireworks.
  • Fig. 1 shows a vertical front cross section of the electric pill
  • Fig. 2 shows a vertical side cross section of this pill.
  • the electric pill in Figs. 1 and 2 is formed by two metal lamellas 4 between which a resistance wire is arranged 3. Fixation of the lamellas 4 with the attached resistance wire 3 is made by a plastic clip 5 .
  • the suspension of explosive composition 2 is applied to the resistance wire 3, or to the skeleton formed by endings of the lamellas 4 with the resistance wire 3, according to this technical solution and using the dipping technology. After drying out and removal of organic solvents, the explosive composition is provided with lacquer layer 1, in this case a nitrocellulose lacquer ensuring the mechanical strength of the electric pill fuse head thus formed.
  • the suspension of the explosive composition 2 consists of 48 wt. portions of the potassium salt of dinitrobenzofuroxane, 25 wt. portions of potassium perchlorate, 9 wt. portions of zirconium, 9 wt. portions of boron, and 9 wt. portions of calcium silicide in a 1% solution of nitrocellulose in amyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with a wire diameter of 30 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 0.18A and ignition current 1A.
  • the suspension of explosive composition 2 consists of 48 wt. portions of the potassium salt of dinitrobenzofuroxane, 25 wt. portions of potassium perchlorate, 9 wt. portions of zirconium, 9 wt. portions of boron and, 9 wt. portions of calcium silicide in a 3% solution of fluoroelastomer in butyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with the wire diameter of 55 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 0.45A and ignition current 1.5A.
  • the suspension of explosive composition 2 consists of 55 wt. portions of the potassium salt of dinitrobenzofuroxane, 15 wt. portions of potassium perchlorate, 10 wt. portions of zirconium, 10 wt. portions of boron, and 10 wt. portions of calcium silicide in a 5% solution of nitrocellulose in amyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with the wire diameter of 45 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 0.25A and ignition current 1.1A.
  • the suspension of explosive composition 2 consists of 40 wt. portions of the potassium salt of dinitrobenzofuroxane, 15 wt. portions of potassium perchlorate, 15 wt. portions of zirconium, 15 wt. portions of boron, and 15 wt. portions of calcium silicide in a 5% solution of nitrocellulose in amyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with the wire diameter of 100 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 1.2A and ignition current 3.5A.
  • the suspension of explosive composition 2 consists of 55 wt. portions of the potassium salt of dinitrobenzofuroxane, 12 wt. portions of potassium perchlorate, 8 wt. portions of zirconium, 10 wt. portions of boron, and 15 wt. portions of calcium silicide in a 3% solution of nitrocellulose in butyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of CuNi (44% of Ni) alloy with the wire diameter of 170 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 4A and ignition current 25A.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Air Bags (AREA)
  • Dental Preparations (AREA)

Abstract

The suspension of explosive composition of pill fuse heads for industrial electric detonators consisting of 30 - 60 wt. portions of potassium salt of dinitrobenzofuroxane, 15 - 35 wt. portions of potassium perchlorate, 5 - 20 wt. portions of zirconium, 5 - 20 wt. portions of boron, and 5 - 20 wt. portions of calcium silicide in a 1 - 5% solution of nitrocellulose or fluoroelastomer in an organic solvent. The organic solvent may be amyl acetate, butyl acetate, propyl acetate, or isomers thereof.

Description

    Field of the Invention
  • The invention concerns the suspension of explosive composition of pill fuse head for industrial electric detonators created by dipping technology on its skeleton formed by metal lamellas and a resistance wire.
    • State of the Art
  • At present, suspensions of explosive compositions in solutions of nitrocellulose or fluoroelastomer in an organic solvent are used for the technology of the production of electric pill fuse heads by dipping. Those suspensions contain an explosive based on a lead salt and other components based on lead and non-lead oxidizers, metal powders, and binders, such as mentioned nitrocellulose or fluoroelastomer.
  • The dipping technology is based on simultaneous immersion of several thousand electric pill skeletons, formed by metal lamellas with a resistance wire, into a suspension of explosive composition, and thus the formation of electric pill fuse heads. These wet fuse heads are then dried out to remove the organic solvent, after which the fuse heads of the electric pills are provided with a lacquer layer of conventional lacquers to ensure mechanical and dimensional strength. In the dipping technology, suspensions of explosive composition must exhibit constancy of composition and sedimentation of the individual components must not occur.
  • The explosive composition of the pill fuse heads, after the organic solvents have been dried out, then coats the resistance wire, which is usually made of a NiCr alloy in a weight ratio of 80/20 and whose diameter ranges from 30 to 100 micrometres, or of a CuNi alloy containing 44% Ni, with a diameter of 170 micrometres. The explosive pill composition then determines the electrical parameters of the electric pill with respect to the resistance wire, such as: safe current and ignition current.
  • The electric pill thus formed can be used in an electric industrial detonator, where, after passing a predefined electrical impulse, the resistance wire of the electric pill is heated and subsequently the pill explosive composition is initiated, the burst of flame of which then transmits the heat burst to the pyrotechnic delay composition of the industrial electric detonator.
  • Therefore, the explosive composition must be sufficiently sensitive to the definably heated resistance wire of the electric pill to ignite it. The created burst of flame, formed by the explosive transformation of the individual components, then must not have an excessive pressure effect, but must have the calorific capacity to initiate the delay pyrotechnic composition of the electric detonator.
  • The above currently used formula of suspensions of the explosive composition of electric pill fuse heads is, however, unacceptable from the ecological point of view according to the current European legislation.
    • Principle of the Invention
  • The above shortcomings are eliminated by the suspension of explosive composition of pill fuse head for industrial electric detonators according to this invention, the essence of which is that it consists of 30 - 60 wt. portions of the potassium salt of dinitrobenzofuroxane, 15 - 35 wt. portions of potassium perchlorate, 5 - 20 wt. portions of zirconium, 5 - 20 wt. portions of boron, and 5 - 20 wt. portions of calcium silicide in 1 - 5% solution of nitrocellulose or fluoroelastomer in an organic solvent.
  • For proper function, it is withal advantageous, if the organic solvent is amyl acetate, butyl acetate, propyl acetate, or isomers thereof.
  • Such suspension of explosive composition has suitable rheological properties because its individual components do not sediment and it is technologically processable for multiple applications to the electric pill skeleton formed by metal lamellas with the resistance wire forming a bridge, where after the drying operation forms the electric pill fuse head.
  • The listed formula of the suspension of explosive composition applied to the resistance wire of the electric pill then, after drying the organic solvent and providing the lacquer layer, ensures the required sensitivity of the electric pill to initiation when heating the resistance wire of varying material composition and diameter, and the formed fumes after its explosive transformation generate regular burst of flame and allow regular ignition of the pyrotechnic delay composition in the electric detonator.
  • The concerned composition of the fuse head of the electric pill is harmless from the point of view of ecology because it does not contain any non-ecological components and does not create such by its explosive transformation. The explosive composition and its products after the explosive transformation are thus environmentally friendly.
  • The mentioned explosive composition can also be used as a separate electric pill or in an electric igniter assembly also for use in fireworks.
    • Brief Description of the Figures in the Drawing
  • The invention will be further elucidated with the aid of the drawing, in which Fig. 1 shows a vertical front cross section of the electric pill and Fig. 2 shows a vertical side cross section of this pill.
    • Examples of the Invention Design
  • The electric pill in Figs. 1 and 2 is formed by two metal lamellas 4 between which a resistance wire is arranged 3. Fixation of the lamellas 4 with the attached resistance wire 3 is made by a plastic clip 5. The suspension of explosive composition 2 is applied to the resistance wire 3, or to the skeleton formed by endings of the lamellas 4 with the resistance wire 3, according to this technical solution and using the dipping technology. After drying out and removal of organic solvents, the explosive composition is provided with lacquer layer 1, in this case a nitrocellulose lacquer ensuring the mechanical strength of the electric pill fuse head thus formed.
    • Example 1
  • The suspension of the explosive composition 2 consists of 48 wt. portions of the potassium salt of dinitrobenzofuroxane, 25 wt. portions of potassium perchlorate, 9 wt. portions of zirconium, 9 wt. portions of boron, and 9 wt. portions of calcium silicide in a 1% solution of nitrocellulose in amyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with a wire diameter of 30 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 0.18A and ignition current 1A.
    • Example 2
  • The suspension of explosive composition 2 consists of 48 wt. portions of the potassium salt of dinitrobenzofuroxane, 25 wt. portions of potassium perchlorate, 9 wt. portions of zirconium, 9 wt. portions of boron and, 9 wt. portions of calcium silicide in a 3% solution of fluoroelastomer in butyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with the wire diameter of 55 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 0.45A and ignition current 1.5A.
    • Example 3
  • The suspension of explosive composition 2 consists of 55 wt. portions of the potassium salt of dinitrobenzofuroxane, 15 wt. portions of potassium perchlorate, 10 wt. portions of zirconium, 10 wt. portions of boron, and 10 wt. portions of calcium silicide in a 5% solution of nitrocellulose in amyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with the wire diameter of 45 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 0.25A and ignition current 1.1A.
    • Example 4
  • The suspension of explosive composition 2 consists of 40 wt. portions of the potassium salt of dinitrobenzofuroxane, 15 wt. portions of potassium perchlorate, 15 wt. portions of zirconium, 15 wt. portions of boron, and 15 wt. portions of calcium silicide in a 5% solution of nitrocellulose in amyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of NiCr (80/20) alloy with the wire diameter of 100 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 1.2A and ignition current 3.5A.
    • Example 5
  • The suspension of explosive composition 2 consists of 55 wt. portions of the potassium salt of dinitrobenzofuroxane, 12 wt. portions of potassium perchlorate, 8 wt. portions of zirconium, 10 wt. portions of boron, and 15 wt. portions of calcium silicide in a 3% solution of nitrocellulose in butyl acetate.
  • This suspension was applied by the dipping technology to a skeleton with a resistance wire 3 made of CuNi (44% of Ni) alloy with the wire diameter of 170 micrometres, in which case the subsequently formed electric pill fuse head exhibited the parameters of safe current 4A and ignition current 25A.

Claims (2)

  1. The Suspension of Explosive Composition of Pill Fuse Head for Industrial Electric Detonators, characterized by consisting of 30 - 60 portions of the potassium salt of dinitrobenzofuroxane, 15 - 35 wt. portions of potassium perchlorate, 5 - 20 wt. portions of zirconium, 5 - 20 wt. portions of boron, and 5 - 20 wt. portions of calcium silicide in a 1 - 5% solution of fluoroelastomer in an organic solvent.
  2. The Suspension of Explosive Composition of Pill Fuse Head for Industrial Electric Detonators according to Claim 1, characterized by the fact that the organic solvent is amyl acetate, butyl acetate, propyl acetate, or isomers thereof.
EP22020161.0A 2021-04-12 2022-04-08 Suspension of explosive composition of pill fuse head for industrial electric detonators Active EP4140973B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2021-180A CZ2021180A3 (en) 2021-04-12 2021-04-12 A suspension of explosive pill-head composition for industrial electric detonators

Publications (2)

Publication Number Publication Date
EP4140973A1 true EP4140973A1 (en) 2023-03-01
EP4140973B1 EP4140973B1 (en) 2024-02-28

Family

ID=83601205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22020161.0A Active EP4140973B1 (en) 2021-04-12 2022-04-08 Suspension of explosive composition of pill fuse head for industrial electric detonators

Country Status (3)

Country Link
EP (1) EP4140973B1 (en)
CZ (1) CZ2021180A3 (en)
PL (1) PL4140973T3 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030110971A1 (en) * 2001-12-14 2003-06-19 Livbag Snc Process for the preparation of an electropyrotechnic initiator by use of an aqueous adhesive
CZ294317B6 (en) * 2001-06-08 2004-11-10 Indet Safety Systems A. S. Pyrotechnical composition for electrical initiators with reduced toxicity
FR2861389A1 (en) * 2003-10-22 2005-04-29 Davey Bickford Pyrotechnic composition for use in an electric initiator, especially for automobile airbags, comprises zirconium, boron, oxidant and binder.
US20050183805A1 (en) * 2004-01-23 2005-08-25 Pile Donald A. Priming mixtures for small arms
CZ35228U1 (en) * 2021-04-12 2021-07-13 Austin Detonator S.R.O. Suspension of an explosive composition of the pilule for industrial electric detonators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ294317B6 (en) * 2001-06-08 2004-11-10 Indet Safety Systems A. S. Pyrotechnical composition for electrical initiators with reduced toxicity
US20030110971A1 (en) * 2001-12-14 2003-06-19 Livbag Snc Process for the preparation of an electropyrotechnic initiator by use of an aqueous adhesive
FR2861389A1 (en) * 2003-10-22 2005-04-29 Davey Bickford Pyrotechnic composition for use in an electric initiator, especially for automobile airbags, comprises zirconium, boron, oxidant and binder.
US20050183805A1 (en) * 2004-01-23 2005-08-25 Pile Donald A. Priming mixtures for small arms
CZ35228U1 (en) * 2021-04-12 2021-07-13 Austin Detonator S.R.O. Suspension of an explosive composition of the pilule for industrial electric detonators

Also Published As

Publication number Publication date
PL4140973T3 (en) 2024-05-06
CZ2021180A3 (en) 2022-10-19
EP4140973B1 (en) 2024-02-28

Similar Documents

Publication Publication Date Title
US3134329A (en) Exploding bridgewire coating
US5945627A (en) Detonators comprising a high energy pyrotechnic
US2775200A (en) Priming device
GB1587858A (en) Electric igniter
CN101825419B (en) Exploding device with multi-varying section and detonator applying same
US4374686A (en) Delay composition for detonators
AU2003254091A8 (en) Lead-free electric match compositions
US2801585A (en) Squib
US3779167A (en) Electrical initiator
EP4140973A1 (en) Suspension of explosive composition of pill fuse head for industrial electric detonators
US4586435A (en) Electric detonator
CZ35228U1 (en) Suspension of an explosive composition of the pilule for industrial electric detonators
US3286628A (en) Electric detonator ignition systems
US3788225A (en) Warhead, particularly for fighting ships
US2008366A (en) Igniter powder
US2402235A (en) Blasting initiator
RU176158U1 (en) ELECTRIC IGNITOR
US2398683A (en) Cartridge for actuating gas pres
US2360698A (en) Detonator
US5392713A (en) Shock insensitive initiating devices
US2995086A (en) Fuseheads
US2086532A (en) Electric blasting initiator
US2185370A (en) Electric initiator
US2363254A (en) Blasting cap
US3317360A (en) Preparation of electric blasting cap mixture containing amorphous boron and lead oxide

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230531

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: F42C 19/12 20060101ALI20230927BHEP

Ipc: C06C 7/00 20060101AFI20230927BHEP

INTG Intention to grant announced

Effective date: 20231025

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602022002072

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240628

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240529

REG Reference to a national code

Ref country code: EE

Ref legal event code: FG4A

Ref document number: E024258

Country of ref document: EE

Effective date: 20240514

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240528

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240528

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240628

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240529

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240628

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1661136

Country of ref document: AT

Kind code of ref document: T

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240628

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602022002072

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240408

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20240430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240408

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240428

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240430

26N No opposition filed

Effective date: 20241129

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20250311

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250402

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20250404

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: EE

Payment date: 20250407

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20220408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20220408

REG Reference to a national code

Ref country code: CH

Ref legal event code: H13

Free format text: ST27 STATUS EVENT CODE: U-0-0-H10-H13 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20251125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20250430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20260310

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20260316

Year of fee payment: 5