WO2020054710A1 - Récipient en mousse à soufflage direct - Google Patents

Récipient en mousse à soufflage direct Download PDF

Info

Publication number
WO2020054710A1
WO2020054710A1 PCT/JP2019/035529 JP2019035529W WO2020054710A1 WO 2020054710 A1 WO2020054710 A1 WO 2020054710A1 JP 2019035529 W JP2019035529 W JP 2019035529W WO 2020054710 A1 WO2020054710 A1 WO 2020054710A1
Authority
WO
WIPO (PCT)
Prior art keywords
foaming
nozzle
nozzle portion
direct blow
blow
Prior art date
Application number
PCT/JP2019/035529
Other languages
English (en)
Japanese (ja)
Inventor
裕喜 飯野
市川　健太郎
山口　裕司
Original Assignee
東洋製罐グループホールディングス株式会社
メビウスパッケージング株式会社
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 東洋製罐グループホールディングス株式会社, メビウスパッケージング株式会社 filed Critical 東洋製罐グループホールディングス株式会社
Publication of WO2020054710A1 publication Critical patent/WO2020054710A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent

Definitions

  • the present invention relates to a foam container obtained by direct blow molding.
  • plastic foam molded articles have excellent mechanical properties such as lightness and heat insulation, as well as rigidity, and are applied to various uses.
  • foaming by a so-called microcellular technique using an inert gas as a foaming agent.
  • inert gas as a foaming agent.
  • the foam cells become coarse.
  • the foam cells can be made to have a distribution, so that it can be applied to the field of packaging containers.
  • Patent Document 2 discloses that a foamable resin mixed with an inert gas as a foaming agent is melt-extruded. It has been proposed to subsequently form the container, ie a direct blow foam container, by blow molding.
  • foaming when foaming is applied to direct blow molding, there is a problem that foaming occurs even in a nozzle portion where a screw, a support ring, and the like are formed, which causes a problem such as a decrease in strength of the nozzle portion.
  • a preform for a container is molded by injection molding and a foaming technique is applied to a container obtained by blow molding the preform, a melt of a foaming resin containing a foaming agent (inert gas) is used. Since the filling is performed in the closed injection mold, foaming in the mold can be restricted by applying a holding pressure by overfilling the mold, so that foaming in the nozzle portion can be suppressed. .
  • the nozzle section has a lower draw ratio than the body section and is less susceptible to bubble compression due to blow air as in the case of the body section. If no special measures are taken, the bubble rate is lower than that of the body section. And it will be equal or higher.
  • a separately molded nozzle portion made of a non-foaming resin containing no foaming agent is fixed to the foaming container by means such as adhesion. Means can be employed. However, with such means, the container cannot be formed by one molding, and the production cost is increased.
  • an object of the present invention is to form a nozzle and a body connected thereto by direct blow molding without employing a means such as adhesion, and at the same time, foaming in the nozzle is effectively suppressed.
  • a direct blow foam container To provide a direct blow foam container.
  • the present inventors when producing a foam container by direct blow molding using a foaming resin containing a foaming agent, insert a blow nozzle into a blow mold, the clearance between the nozzle and the blow mold. By finely adjusting the pressure, the molding at the nozzle portion becomes a compression molding, thereby finding that the foaming at the nozzle portion can be effectively suppressed, thereby completing the present invention.
  • the nozzle portion and the body portion are integrally formed by direct blow molding using a foaming resin containing at least a foaming agent, and foam cells are distributed in the nozzle portion and the body portion.
  • a bubble rate at the nozzle portion is 70% or less of a bubble ratio at the body portion.
  • the bubble rate at the nozzle portion is 10% or less;
  • the outer surface of the container is a non-foamed outer layer formed of a non-foamed resin not containing a foaming agent, and the foamed cells are distributed on the inner surface side of the non-foamed outer layer. Layers are provided, (3) a non-foamed inner layer formed of the non-foamed resin is provided on the inner side of the foamed layer; (4)
  • the non-foaming resin the same thermoplastic resin as that used for forming the foaming resin is used; Is preferred.
  • the direct blow foam container of the present invention is formed integrally with the nozzle portion and the body portion by direct blow molding using a foaming resin containing a foaming agent, and does not separately mold the nozzle portion. Absent. Therefore, the productivity is high, and an increase in manufacturing cost can be avoided.
  • the most important feature of the present invention is that the bubble rate of the nozzle part is 70% of the bubble rate of the body part while the nozzle part is molded using a foaming resin containing a foaming agent similarly to the body part. The following is a significant reduction. That is, in the present invention, since the bubble ratio of the nozzle portion is greatly reduced as compared with the body portion, a decrease in strength due to foaming at the nozzle portion is effectively suppressed.
  • FIG. 2A is a schematic side cross-sectional view showing a distribution form of foam cells in a nozzle of the container of FIG. 1 and FIG.
  • FIG. 4 is a view for explaining means for suppressing foaming at a nozzle portion in the blowing step of FIG. 3.
  • FIG. 9 is a diagram illustrating a relationship between a nozzle portion compression ratio and a nozzle portion bubble ratio indicated by an experimental result in the first embodiment.
  • FIG. 9 is a diagram illustrating a relationship between a nozzle portion bubble rate and a nozzle portion compressive strength indicated by an experimental result in Example 1.
  • the direct blow foaming container of the present invention is indicated by reference numeral 10 as a whole, and has a nozzle portion 11 and a body portion 13 connected to the nozzle portion 11, and a lower end of the body portion 13 has a bottom portion. 15 has a closed configuration.
  • the nozzle portion 11 is not blown, and a projection 11a such as a thread for fixing a lid (not shown) such as a cap is formed on a straight outer surface.
  • a lid not shown
  • the trunk portion 13 is a blown portion and has a smooth outer surface which is swollen as a whole.
  • this foam container 10 is molded using a foaming resin containing a foaming agent, as shown in FIG. 20 are distributed.
  • foaming in the nozzle portion 11 is effectively suppressed, and the bubble rate (the existence ratio of the foam cells 20) in the nozzle portion 11 is 70% or less of the bubble rate in the body portion 13, In particular, it is suppressed to 50% or less.
  • This bubble rate is calculated from the specific gravity measured using a hydrometer.
  • a central region O 10 mm above the center portion Ho of the height H of the body portion 13 may be cut out, measured and calculated, and the bubble rate of the body portion 13 may be obtained.
  • the foaming of the nozzle portion 11 is largely suppressed as compared with the body portion 13, a reduction in the strength of the nozzle portion 11 is effectively avoided.
  • the bubble rate of the body portion 13 is usually in the range of about 10 to 30% from the viewpoint of securing advantages such as lightening and light-shielding properties by foaming without losing strength.
  • the foaming container 10 is manufactured by direct blow molding using a foaming resin containing a foaming agent.
  • this direct blow molding basically, as shown in FIG. 3, the foamable resin is melt-extruded to form a tubular parison 31, and the parison 31 is immediately cooled by a cooled blow mold.
  • the blow molds 33 and 33 are closed with the blow nozzle 35 inserted into the parison 31 and the bottom of the parison 31 is closed.
  • a surface 33a for forming the nozzle portion 11 is formed on the upper inner surface of the blow dies 33, 33, and a surface 33b for forming the body portion 13 is formed below the surface 33a.
  • a concave portion corresponding to the protrusion 11a in FIG. 1 is formed on the surface 33a for forming the nozzle portion 11.
  • the blow nozzle 35 is inserted into the parison 31, and a blow fluid such as air is supplied, whereby the blow fluid is shaped into the container 10 as shown in FIG. Foaming will take place.
  • the foamable resin is prepared by supplying a foaming agent to the thermoplastic resin melt-kneaded in the extruder.
  • thermoplastic resin various thermoplastic resins which can be directly blow-molded can be used.
  • various polyolefins and polyesters such as polyethylene terephthalate (PET), polyethylene naphthalate (PNT), and polybutylene terephthalate (PBT) are preferably used,
  • PET polyethylene terephthalate
  • PNT polyethylene naphthalate
  • PBT polybutylene terephthalate
  • polyolefin is preferably used from the viewpoint of flexibility required for a direct blow container.
  • polyolefins include polyethylene such as low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), and linear ultra low density polyethylene (LVLDPE).
  • polypropylene, ethylene-propylene copolymer, polybutene-1, ethylene-butene-1 copolymer, propylene-butene-1 copolymer, ethylene-propylene-butene-1 copolymer, ethylene-vinyl acetate copolymer Coalescence, ion-crosslinked olefin copolymer (ionomer) and the like can be exemplified.
  • a polyolefin those having a so-called extrusion grade melt flow rate (MFR; ASTM-D-1238, 230 ° C.), for example, those having an MFR of 0.1 to 0.7 g / 10 min are preferably used. Is done.
  • the foaming agent to be mixed with the thermoplastic resin as described above a chemical foaming agent such as various carbonate compounds and azo compounds, and a physical foaming agent represented by an inert gas such as nitrogen and carbon dioxide are used.
  • an inert gas is preferably used from the viewpoint of controlling foaming.
  • the amount of the foaming agent supplied to the thermoplastic resin for direct blow molding in the molten state may be an amount such that an appropriate amount of foam cells is generated in the body portion 13 from melt extrusion to blow molding, and specifically, although it depends on the type, when nitrogen, which is an inert gas, is used as the blowing agent, the amount is preferably about 0.05 to 0.1 part by mass per 100 parts by mass of the resin.
  • foaming in the nozzle portion 11 must be suppressed as compared with the body portion 13.
  • a method of inserting the blow nozzle 35 into the parison 31 is adopted.
  • Such a technique is called a driving type.
  • a technique called a needle type in which the blow nozzle 35 is inserted into the parison 31 without inserting the blow nozzle 35 into the parison 31 and a blow fluid is introduced into the parison 31 to perform blow molding is known.
  • the needle type since the nozzle portion 11 is also shaped by the blow air, foaming cannot be suppressed effectively.
  • the tip portion of a blow nozzle 35 having a supply path of a blow fluid such as air has a straight outer surface 35a and a gradual flow toward the tip.
  • the blow nozzle 35 has a tapered outer surface 35b with a reduced diameter, and the blow nozzle 35 is arranged such that the straight outer surface 35a faces the upper inner surface 33a of the blow dies 33, 33 (the surface 33a for forming the nozzle portion 11).
  • a clearance CL is formed between the straight body portion 35a of the blow nozzle 35 and the inner surface 33a of the blow mold 33, and the size of the clearance CL is large.
  • the parison 31 is compression-molded, and the nozzle portion 11 is formed on the upper part of the parison 31, and the lower part expands and is thinned by the next blow. It will be shaped in the form of the trunk 13.
  • the clearance CL by finely adjusting the clearance CL to suppress foaming at the nozzle portion 11, foaming at the nozzle portion 11 is significantly suppressed as compared with the body portion 13.
  • the bubble rate can be set in a predetermined range. That is, at the time of melt extrusion, the inert gas in the resin or the gas generated by the decomposition of the foaming agent expands, and the resin is solidified by cooling by a blow mold. As a result, the foam cell 30 is generated.
  • a large compressive force can be applied by adjusting the clearance CL between the blow nozzle 35 and the inner surface 33a of the blow mold. That is, foaming at the surface can be suppressed.
  • the specific value of the clearance CL varies depending on the melt viscosity of the resin to be used and the amount of the foaming agent, and cannot be specified unconditionally. However, in general, the clearance CL and the thickness t of the parison 31 are different. It is preferable that the ratio CL / t is 0.5 or less, particularly 0.4 or less in order to set the bubble rate of the nozzle portion 11 in the above-described range.
  • direct blow molding is performed by a driving method.
  • the clearance CL between the straight body portion 35a of the blow nozzle 35 and the inner surface 33a of the blow mold 33 is reduced to the thickness of the parison 31.
  • the bubble rate in the nozzle portion 11 can be largely suppressed as compared with the body portion 13, thereby effectively preventing a decrease in the strength in the nozzle portion 11. be able to.
  • the foaming container 10 is formed by direct blow molding using a foaming resin in which a foaming agent is mixed, but in the present invention, a non-foaming resin containing no foaming agent is used in combination. Then, the foamed container 10 can be molded.
  • a non-foamed layer in which the foamed cells 20 are not distributed on the surface of the foamed layer in which the foamed cells 20 are distributed is used as a skin layer.
  • a skin layer is usually provided on the outer surface side of the foam layer, but can also be provided on the inner surface side of the foam layer. That is, in the present invention, the following layer structure can be adopted.
  • Container inner surface Foam layer / skin layer (non-foam layer): Container outer surface
  • Container inner surface Skin layer (non-foam layer) / foam layer / skin layer (non-foam layer): Container outer surface
  • Container inner surface Skin layer (Non-foamed layer) / foamed layer: outer surface of container
  • the formation of the skin layer as described above can effectively prevent the formation of surface irregularities due to foaming.
  • a skin layer is formed on the outer surface side of the container, the appearance of the container is prevented from deteriorating due to foaming, and the printing characteristics of the container can be enhanced.
  • the skin layer is provided on the outer surface side. Is most preferred.
  • the skin layer is provided on the inner surface side of the container, there is an advantage that the discharge property of the contents can be enhanced by the smoothness of the inner surface depending on the type of the contents of the container.
  • the non-foamable resin forming the skin layer as described above, it is preferable to use the resin used for the foamable resin forming the foamed layer. That is, by using such a resin, a layer structure in which both layers are firmly bonded can be secured without providing an adhesive layer or the like between the foam layer and the skin layer.
  • the thickness of the skin layer is not particularly limited.
  • the bubble ratio in the body 13 is maintained in the above range (10 to 30%). It is preferable to set the thickness of the skin layer such that Thereby, advantages such as appearance characteristics of the skin layer can be enjoyed without impairing the advantages of foaming.
  • the above-described direct blow container 10 of the present invention has a light weight and a high light-shielding property due to foaming, and also effectively avoids a decrease in the strength of the nozzle portion 11 due to foaming, and has high dimensional accuracy.
  • the present invention as described above is not limited to this, but takes advantage of the flexibility inherent in containers obtained by direct blow molding to make viscous contents such as cosmetics, liquid detergents, pharmaceuticals, and liquid seasonings. It is suitably applied to a container for storing materials and the like.
  • Example 1 A foamed bottle was produced using a blow mold and a blow mold having no uneven shape such as a screw or a support ring in a compression molding portion formed by a blow nozzle.
  • the clearance CL between the blow mold and the blow nozzle was kept constant at 1.3 mm, and CL / t was changed by setting the parison thickness t to 2.8 mm to 3.4 mm.
  • the thickness of the parison was changed by changing the clearance at the exit of the die while keeping the rotation speed of the extruder and the addition amount of the foaming agent constant.
  • the bubble ratio of the parison and the bottle nozzle before blowing and the compressive strength of the nozzle were measured for the produced bottle.
  • the specific gravity was measured using an electronic hydrometer (MDS-300, manufactured by Alpha Mirage Co., Ltd.), and was calculated by comparing the specific gravity of the non-foamed bottle.
  • MDS-300 manufactured by Alpha Mirage Co., Ltd.
  • For the compressive strength of the nozzle part cut out a range of 10 mm from the top of the nozzle part, apply a compressive load from the circumferential direction using a universal testing machine Tensilon (UCT-5T manufactured by Orientec), and measure the load when pressing down 4 mm did.
  • FIG. 5 is a graph showing the relationship between the compression ratio (the ratio CL / t between the mold clearance CL and the parison thickness t) at the nozzle portion and the bubble rate based on the experimental results.
  • FIG. 6 is a graph showing the relationship between the bubble ratio and the compression strength of the nozzle portion. It can be confirmed from FIG. 5 that the bubble rate decreases as the compression rate increases, and from FIG. 6, it can be confirmed that the lower the bubble rate, the higher the compression strength of the nozzle portion. For this reason, it can be said that suppressing the bubble rate of the nozzle portion is effective for fitting with the lid and suppressing overrun when tightening the screw.
  • Example 2 By adjusting the pressure at the time of blowing and changing the degree of compression of the bubbles, foamed bottles having different body bubble ratios were produced.
  • the produced bottle was compressed vertically by a universal testing machine Tensilon (UCT-5T, manufactured by Orientec), and the maximum load when the bottle buckled was measured as the longitudinal compressive strength.
  • Foaming direct blow container 11 Nozzle part 13: Body part 15: Bottom part 20: Foaming cell 31: Parison 33: Blow mold 35: Blow nozzle

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

L'invention concerne un récipient en mousse à soufflage direct dans lequel le moussage dans la partie buse est efficacement réduit, tout en formant en même temps d'un seul tenant une partie buse et une partie corps reliée à celle-ci par moulage par soufflage direct, sans utiliser de moyens tels que l'adhérence. De plus, la présente invention concerne un récipient à moussage par soufflage direct (10) dans lequel une partie buse (11) et une partie corps (13) sont formées d'un seul tenant par moulage par soufflage direct à l'aide d'une résine moussante qui contient au moins un agent moussant, et des cellules en mousse sont réparties à l'intérieur de la partie buse (11) et de la partie corps, caractérisé en ce que le taux de moussage de la partie buse (11) ne dépasse pas 70 % du taux de moussage de la partie corps (13).
PCT/JP2019/035529 2018-09-13 2019-09-10 Récipient en mousse à soufflage direct WO2020054710A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018171115A JP6651590B1 (ja) 2018-09-13 2018-09-13 ダイレクトブロー発泡容器
JP2018-171115 2018-09-13

Publications (1)

Publication Number Publication Date
WO2020054710A1 true WO2020054710A1 (fr) 2020-03-19

Family

ID=69568387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/035529 WO2020054710A1 (fr) 2018-09-13 2019-09-10 Récipient en mousse à soufflage direct

Country Status (2)

Country Link
JP (1) JP6651590B1 (fr)
WO (1) WO2020054710A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001527106A (ja) * 1997-12-19 2001-12-25 トレクセル・インコーポレーテッド 微孔性フォームの押出し／吹込み成形プロセス及びそれによって製造される製品
JP2010274958A (ja) * 2009-05-28 2010-12-09 Yoshino Kogyosho Co Ltd 容器
JP2013095050A (ja) * 2011-10-31 2013-05-20 Toyo Seikan Kaisha Ltd 発泡樹脂成形品
JP2013100491A (ja) * 2011-10-17 2013-05-23 Japan Polypropylene Corp ポリプロピレン系樹脂組成物および発泡成形体
WO2013118718A1 (fr) * 2012-02-07 2013-08-15 東洋製罐グループホールディングス株式会社 Mousse de dépôt en phase vapeur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001527106A (ja) * 1997-12-19 2001-12-25 トレクセル・インコーポレーテッド 微孔性フォームの押出し／吹込み成形プロセス及びそれによって製造される製品
JP2010274958A (ja) * 2009-05-28 2010-12-09 Yoshino Kogyosho Co Ltd 容器
JP2013100491A (ja) * 2011-10-17 2013-05-23 Japan Polypropylene Corp ポリプロピレン系樹脂組成物および発泡成形体
JP2013095050A (ja) * 2011-10-31 2013-05-20 Toyo Seikan Kaisha Ltd 発泡樹脂成形品
WO2013118718A1 (fr) * 2012-02-07 2013-08-15 東洋製罐グループホールディングス株式会社 Mousse de dépôt en phase vapeur

Also Published As

Publication number Publication date
JP2020041093A (ja) 2020-03-19
JP6651590B1 (ja) 2020-02-19

Similar Documents

Publication Publication Date Title
US9283697B2 (en) Stretched and foamed plastic container and method of producing the same
EP2764978B1 (fr) Récipient en matière plastique en mousse étirée et procédé de fabrication de ce récipient
JP5584987B2 (ja) 非発泡ガス含浸成形体及び発泡プラスチック容器
JP5018593B2 (ja) 発泡プラスチック容器
WO2007007867A1 (fr) Récipient plastique à aspect perlé et son procédé de production
KR101731417B1 (ko) 올레핀계 수지제 발포 연신 성형체
JP5929082B2 (ja) 発泡延伸プラスチック容器及びその製造方法
JP4853110B2 (ja) 樹脂一体成形体の製造方法
JP4853109B2 (ja) 樹脂一体成形体及びその製造方法
JP5239479B2 (ja) 部分発泡共射出成形体の製造方法及び部分発泡共射出成形体
WO2020054710A1 (fr) Récipient en mousse à soufflage direct
JP5954105B2 (ja) プロピレン系樹脂製発泡延伸成形体及びその製造方法
JP5929101B2 (ja) 発泡樹脂成形品
KR102077509B1 (ko) 복합 발포 용기
JP5929085B2 (ja) 発泡延伸容器及びその製造方法
JP5971131B2 (ja) ポリオレフィン樹脂製発泡延伸容器
JP2016078922A (ja) ポリオレフィン製発泡延伸容器
JP4710120B2 (ja) 内面補強中空容器のブロー成形方法およびその装置
WO2024078911A1 (fr) Article comprenant du polyéthylène recyclé et renouvelable
JP5392425B2 (ja) 容器用プリフォーム及びその製造方法
JP2007223141A (ja) 発泡成形体の製造方法および発泡成形体

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19859814

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19859814

Country of ref document: EP

Kind code of ref document: A1