WO2003010257A1 - Compositions silicones adhesives sensibles a la pression, leur procede de preparations et leurs utilisations - Google Patents
Compositions silicones adhesives sensibles a la pression, leur procede de preparations et leurs utilisations Download PDFInfo
- Publication number
- WO2003010257A1 WO2003010257A1 PCT/FR2002/002578 FR0202578W WO03010257A1 WO 2003010257 A1 WO2003010257 A1 WO 2003010257A1 FR 0202578 W FR0202578 W FR 0202578W WO 03010257 A1 WO03010257 A1 WO 03010257A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chosen
- radical
- group
- silicone
- composition according
- Prior art date
Links
- MUSLEIYXBGEMLS-UHFFFAOYSA-N CCC1COC(C)=CC1 Chemical compound CCC1COC(C)=CC1 MUSLEIYXBGEMLS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/14—Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/28—Non-macromolecular organic substances
Definitions
- Pressure sensitive adhesive silicone compositions process for their preparation and their uses.
- the present invention relates to pressure-sensitive adhesive compositions based on silicone-free resin and silicone gum, as well as methods for preparing and using these compositions which are capable of curing by heat treatment, UV rays and / or under beam. electron.
- Silicone-based compositions are known to make surfaces adherent. In this regard, it is often necessary to apply these silicone coatings in the form of solutions in a solvent to reduce their viscosity and thus make these compositions usable in coating applications.
- the solvent does facilitate spreading of the coating composition, however, this is not satisfactory since it is then necessary to evaporate the solvent in question, which requires a great deal of energy consumption.
- its evaporation poses environmental problems and in particular problems linked to discharges into the atmosphere; this necessitates the removal and recovery of the solvent, thereby resulting in considerable equipment and energy cost.
- Another essential objective of the invention is to provide crosslinkable and / or polymerizable compositions cationically under heat treatment, and / or UV rays and / or by electron beam.
- Another objective of the invention is to provide compositions which can be used both in a thin layer and in a thick layer.
- a pressure-sensitive, solvent-free, curable adhesive composition comprising: • (a) at least one Re silicone resin containing:
- R 1 and R 2 are monovalent radicals chosen from alkyl radicals, alkenyl radicals and hydroxy radicals;
- (B) at least one Go silicone gum with a viscosity greater than 100,000 mPa.s, and preferably greater than 200,000 mPa.s, and functionalized at the chain end (s) with at least one epoxy group and / or vinyl and preferably hydroxy,
- the radicals R ⁇ represent a carbocyclic or heterocyclic aryl radical in C5-C20.
- said heterocyclic radical possibly containing as heteroelements nitrogen, sulfur, and / or oxygen.
- radical R 4 represent a linear or branched C radical alkyl radical
- R 5 is a radical selected from the group consisting of a hydrogen atom, a linear or branched C1-C25, an aryl C6-C30, and / or an alkylaryl radical in which the alkyl moiety is linear or branched in C1-C25 and the aryl part is in C -C ⁇ rj,
- the weight ratio R po ⁇ ds silicone gum GB compared to the Re silicone resin is between 0.01 and 100 and preferably between 0.1 and 10. If it is desired to obtain a coating hard and not very adhesive, this ratio R p0
- epoxy organic diluents the following compounds may be mentioned, for example: di (2,3-epoxypropyl) isophthalate, 1- (2,3-epoxypropyl) -2- (2,3- epoxypropoxy) benzene, di (2,3-epoxypropyl) adipate, 1,3-bis (2,3-epoxypropoxy) benzene, 1,3,5-tris (2,3-epoxypropoxy) benzene, 2,2-bis [ 4- (2,3-epoxypropoxy) phenyl] propane, 2,2-bis [4- (2,3-epoxypropoxy) phenyl] ether, the polyglycidyl ether of phenol-formaldehyde novolac, 3,4-epoxycyclohexylmethyl 3, 4-epoxycyclohexanecarboxylate, 1, 4-bis (2,3-epoxypropoxy) butane, 1, 2,3-tris (2,3-epoxypropoxy) propane,
- alkenyl ether organic diluents the following compounds may be mentioned, for example: dodecylvinyl ether (DDVE), cyclohexylvinyl ether (CVE), butanedioldivinyl ether (BDVE), butanediolmonovinyl ether (HBVE), cyclohexaneimethanol divinyl ether (CHDVE), cyclohexane dimethanol monovinylether (CHMVE), tnethylene glycol divinyl ether (DVE-3), and 1ane 4-dimethyl ether (4-dimethyl ether).
- DDVE dodecylvinyl ether
- CVE cyclohexylvinyl ether
- BDVE butanedioldivinyl ether
- HBVE butanediolmonovinyl ether
- CHDVE cyclohexaneimethanol divinyl ether
- CHMVE cyclohe
- Dioxolane organic diluents include, for example, dioxolane.
- the latter can comprise a species of silicone nature Dsi which can be advantageously combined with the organic species Do.
- This silicone Dsi comprises at least one motif of formula (FS):
- - R ° identical or different, represents an alkyl, cycloalkyl, aryl, alkoxy radical, preferably a lower alkyl in C ⁇ -
- - And Z is an organic substituent comprising at least one reactive epoxy, alkenylether, oxetane and / or dioxolane function.
- the amount by weight of diluent of organic nature is preferably higher than that of diluent of silicone nature.
- This silicone Dsi can be chosen from a large number of silicones carrying at least one reactive function Z, and preferably comprises at least two silicon atoms.
- These Z functions can in particular be chosen from the following radicals:
- silicone Dsi can be chosen from the species whose average formulas are given below:
- R C1 to C6 alkyl radical.
- R C1 to C6 alkyl radical.
- the cationic entity of the initiator Am is chosen from at least one entity from the group consisting of:
- this cationic entity is chosen from those of formula [(CH (CH3) 2- C ⁇ Hs -) - 1 - (- R ”)] as defined above.
- anionic entity of the initiator Am this can be of very diverse nature.
- the following species may be mentioned in particular used alone or as a mixture: BF 4 " , PF ⁇ “ , CF3SO3 “ , N (S02CF3) 2 “. And C (S02CF 3 ) 2 -.
- this anionic entity is preferably chosen from those of formula (II):
- a phenyl radical substituted by at least one electron-withdrawing group such as -CF 3, -OCF 3, -NO 2, CN, -SO 2 R 8,
- n ® being an integer name between 1 and 20 or substituted by at least 2 halogen atoms, in especially fluorine,
- R 8 being -0-C n F2 n + ⁇ , -Cn F 2n + 1 - n being an integer between 1 and 20.
- composition according to the invention can also optionally comprise at least one photosensitizer selected from the (poly) aromatic products optionally metallic and heterocyclic products.
- the photosensitizer is chosen from the following list of products: phenothiazine, tetracene, perylene, anthracene, diphenyl-9-10-anthracene, thioxanthone, 2-chlorothioxanthen-9-one, 1-chloro 4 propoxy 9H-thioxanthen-9 -one, isopropyl-OH-thioxanten-9-one, mixture of isomers 2 and 4, 2- isopropyl-9H -thioxanthen-9-one, benzophenone, [4- (4-methylphenylthio) phenyl] - phenylmethanone, 4-benzyl- 4'-methyldiphenylsulphide, acetophenone, xanthone, fluorenone, anthraquinone, 9,10-dimethylanthracene, 2-ethyl-9,10-dimethyloxy-anthracene, 2,6-dimethyl-
- composition according to the invention may contain a stabilization additive based on tertiary, secondary or primary aliphatic amine; this amine is preferably chosen from the derivatives described in patent application WO98 / 07798.
- the adhesive composition according to the invention is prepared by mixing (i) the resin Re, (ii) the silicone gum Go in solution, (iii) the diluent
- the solvent is removed by devolatilization.
- the initiator Am is then added if it is not present in the initial mixture.
- the silicone adhesive composition can be applied to various types of supports by any of the known spreading methods, for example by scraping, engraving, brushing, spraying and indirect roller coating.
- support mention may be made, for example, of paper, glass, metals, plastics or any other support based on synthetic and / or fibrous material.
- the desired coating thickness is of the order of 0.1 ⁇ m to 100 ⁇ m in a thin layer and of the order of 100 ⁇ m to 10 cm in a thick layer.
- photosensitizers preferably when the thickness of the layer is greater than a few tens of microns.
- the adhesives obtained which are sensitive to pressure can be combined with non-adhesive supports with respect to said adhesive and thus form so-called self-adhesive complexes.
- Adhesive protective papers such as labels, decorative papers, adhesive tapes are in particular produced from this type of complex.
- Other types of PSA adhesives can be developed; for example, adhesive tapes for electrical insulation, for circuits electronic, adhesive tapes to protect end caps of electric cables or adhesive tapes to mask areas exposed to plasma spraying of metals or carbides at high temperature.
- Example 1 Preparation of the crosslinkable PSA1 composition.
- a pressure sensitive adhesive composition for micaceous tape is obtained by preparing a resin in a reactive diluent medium.
- composition PS1 10% by weight of diluent cyclohexanedimethanoldivinyl ether is added to the composition PS1.
- the viscosity measured is 2000 mPa ⁇ s "1.
- 2.5 parts by weight of an 18% solution of initiator P1 are added per 100 parts by weight of this mixture.
- the composition PSA2 is thus obtained. Tests on micaceous paper or polyester film.
- compositions are applied to the Meyer 2 bar on micaceous paper or on polyester film to obtain a coating 10 micrometers thick.
- the coatings coated on the supports are then crosslinked and / or polymerized under different irradiation conditions from a movement of the coated support on a conveyor, the carpet of which scrolls under two mercury vapor lamps (UV bench, marketed by the company IST).
- the tack is measured by characterizing the force necessary to separate the support coated with a crosslinked and / or polymerized adhesive composition and a support opposite, such as a steel or glass plate.
- the tack for each of the coatings obtained is measured according to different speeds of travel of the support under the UV lamp. This gives coatings having a low, medium or strong tack.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Paints Or Removers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0109930A FR2827870A1 (fr) | 2001-07-25 | 2001-07-25 | Compositions silicones adhesives sensibles a la pression, leur procede de preparations et leurs utilisations |
FR0109930 | 2001-07-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003010257A1 true WO2003010257A1 (fr) | 2003-02-06 |
Family
ID=8865881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002578 WO2003010257A1 (fr) | 2001-07-25 | 2002-07-19 | Compositions silicones adhesives sensibles a la pression, leur procede de preparations et leurs utilisations |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2827870A1 (fr) |
WO (1) | WO2003010257A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8541481B2 (en) | 2008-10-29 | 2013-09-24 | 3M Innovative Properties Company | Gentle to skin adhesive |
US8822560B2 (en) | 2008-10-29 | 2014-09-02 | 3M Innovative Properties Company | Electron beam cured silicone release materials |
US9359529B2 (en) | 2008-10-29 | 2016-06-07 | 3M Innovative Properties Company | Electron beam cured silicone materials |
US10202721B2 (en) | 2010-04-29 | 2019-02-12 | 3M Innovative Properties Company | Electron beam cured siliconized fibrous webs |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146799A (en) * | 1961-03-28 | 1964-09-01 | Union Carbide Corp | Pressure-sensitive organopolysiloxane elastomers and articles produced therefrom |
GB2084598A (en) * | 1980-09-22 | 1982-04-15 | Gen Electric | Ultraviolet curable silicone adhesives |
WO2000019967A1 (fr) * | 1998-10-02 | 2000-04-13 | Rhodia Chimie | Composition dentaire a base d'une silicone reticulable par voie cationique |
WO2001036512A1 (fr) * | 1999-11-19 | 2001-05-25 | Rhodia Chimie | Colle pour plastique polymerisable et/ou reticulable sous irradiation a base de matrice a fonctions reactives |
-
2001
- 2001-07-25 FR FR0109930A patent/FR2827870A1/fr active Pending
-
2002
- 2002-07-19 WO PCT/FR2002/002578 patent/WO2003010257A1/fr not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3146799A (en) * | 1961-03-28 | 1964-09-01 | Union Carbide Corp | Pressure-sensitive organopolysiloxane elastomers and articles produced therefrom |
GB2084598A (en) * | 1980-09-22 | 1982-04-15 | Gen Electric | Ultraviolet curable silicone adhesives |
WO2000019967A1 (fr) * | 1998-10-02 | 2000-04-13 | Rhodia Chimie | Composition dentaire a base d'une silicone reticulable par voie cationique |
WO2001036512A1 (fr) * | 1999-11-19 | 2001-05-25 | Rhodia Chimie | Colle pour plastique polymerisable et/ou reticulable sous irradiation a base de matrice a fonctions reactives |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8541481B2 (en) | 2008-10-29 | 2013-09-24 | 3M Innovative Properties Company | Gentle to skin adhesive |
US8822559B2 (en) | 2008-10-29 | 2014-09-02 | 3D Innovative Properties Company | Electron beam cured silicone release materials |
US8822560B2 (en) | 2008-10-29 | 2014-09-02 | 3M Innovative Properties Company | Electron beam cured silicone release materials |
US9017771B2 (en) | 2008-10-29 | 2015-04-28 | 3M Innovative Properties Company | Gentle to skin adhesive |
US9359529B2 (en) | 2008-10-29 | 2016-06-07 | 3M Innovative Properties Company | Electron beam cured silicone materials |
US10202721B2 (en) | 2010-04-29 | 2019-02-12 | 3M Innovative Properties Company | Electron beam cured siliconized fibrous webs |
US11001962B2 (en) | 2010-04-29 | 2021-05-11 | 3M Innovative Properties Company | Electron beam cured siliconized fibrous webs |
Also Published As
Publication number | Publication date |
---|---|
FR2827870A1 (fr) | 2003-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0562922B1 (fr) | Compositions à base de polyorganosiloxanes à groupements fonctionnels réticulables et leur utilisation pour la réalisation de revêtements antiadhésifs | |
EP0973808A1 (fr) | Amorceurs non toxiques, resines a groupements organofonctionnels reticulables comprenant les amorceurs, et leur utilisation pour la preparation de polymeres stables et non toxiques | |
KR100384911B1 (ko) | 방사선경화성 규소-함유폴리아크릴레이트 경질도막조성물의 제조방법 및 이에의해 제조된 조성물 | |
JPH0346511B2 (fr) | ||
JPH04339816A (ja) | 制御剥離添加剤としてのエポキシ官能化シロキサン樹脂共重合体 | |
JPH07505432A (ja) | シリコーン剥離組成物 | |
FR2925908A1 (fr) | Composition reticulable/polymerisable par voie cationique comprenant un borate de iodonium et degageant une odeur acceptable | |
JPH07216308A (ja) | 軽剥離性紫外硬化性エポキシシリコーン組成物 | |
JPH0286627A (ja) | シリコーン系剥離塗工組成物 | |
EP1406957A1 (fr) | Traitement de surface de materiau plastique avec une composition organique a fonctions reactives polymerisable et/ou reticulable | |
JPH06316639A (ja) | 紫外線硬化性シリコーン剥離被覆組成物 | |
US5144051A (en) | Branched alkoxyphenyl iodonium salt photoinitiators | |
US5314929A (en) | Rapidly curable vinyl ether release coatings | |
US7276541B2 (en) | Use of hydroxyl-functional polyalkylorganosiloxanes as solvents for cationic photoinitiators for use in radiation- curable silicones | |
JPH04126767A (ja) | 紫外線硬化性オルガノポリシロキサン組成物 | |
WO2003010257A1 (fr) | Compositions silicones adhesives sensibles a la pression, leur procede de preparations et leurs utilisations | |
FR2480762A1 (fr) | Composition durcissable par les u. v. a base d'oxydes d'a-olefines et papier pour adhesif pelable revetu d'une telle composition | |
WO2002092716A1 (fr) | Compositions silicones adhesives sensibles a la pression, leur procede de preparation et leurs utilisations | |
JP2011184506A (ja) | 放射線硬化性シリコーン組成物 | |
WO2002092717A1 (fr) | Compositions silicones adhesives sensibles a la pression, leur procede de preparations et leurs utilisations | |
WO2002097003A1 (fr) | Compositions adhesives sensibles a la pression, leur procede de preparation et leurs utilisations | |
CA2297284C (fr) | Nouveaux systemes amorceurs de polymerisation et/ou de reticulation comprenant un borate d'onium et une benzophenone | |
EP0081444A1 (fr) | Procédé de réticulation de compositions organopolysiloxaniques ne comportant pas de liaisons Si-H et de radicaux organiques à insaturation éthylénique activée | |
EP0614958B1 (fr) | Compositions à base de polyorganosiloxanes réticulables par voie cationique et leur utilisation dans le domaine de l'antiadhérence papier, de la protection des fibres optiques et des circuits imprimés | |
FR2752424A1 (fr) | Composition pour couche primaire et procede pour ameliorer l'adherence des silicones a un support |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VN YU ZA ZM Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE CH CY DE DK FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |