CN109694487A - A kind of reflection-type near ultraviolet cut-off protective film - Google Patents
A kind of reflection-type near ultraviolet cut-off protective film Download PDFInfo
- Publication number
- CN109694487A CN109694487A CN201711032405.3A CN201711032405A CN109694487A CN 109694487 A CN109694487 A CN 109694487A CN 201711032405 A CN201711032405 A CN 201711032405A CN 109694487 A CN109694487 A CN 109694487A
- Authority
- CN
- China
- Prior art keywords
- near ultraviolet
- reflection
- film
- protective film
- chiral
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- 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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/02—Polyamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a kind of reflection-type near ultraviolets to end protective film; it include: high-transparent film substrate; on film substrate surface, coating near ultraviolet ends coating; the near ultraviolet cut-off coating is the polymeric coating layer with reflection function; it is assembled using macromolecular structure; control different polymer monomer combination, initiator amount and initiation conditions; form molecular density gradient difference; and then realize height refringence inside high molecular polymer; realize height index matching; the part reflection for reaching 400-450nm wave band, realizes near ultraviolet cutoff function.Near ultraviolet of the invention ends protective film, and simple process only need to be coated with one layer of polymeric coating layer in substrate surface；The performances such as the transparency of near ultraviolet cut-off protective film of the present invention is good, hardness is high, adhesive force is strong, processability is good, are advantageously implemented industrialization.Manufactured film is widely used in 3C Product screen protecting film, while the brightness that the part black light reflected also can be improved colour gamut, enhance product light source.
Description
Technical field
The present invention relates to protection technical field of membrane more particularly to a kind of reflection-type near ultraviolet to end protective film.
Background technique
A large amount of blue light is remained in LED, computer bias light artificial light sources, so that artificial light is whiter, brighter, some
Especially white bright light to people's blueing always feeling, here it is blue light ratio it is excessively high caused by.All kinds of computers, television screen,
All contain the shortwave blue light of a large amount of irregular frequency in the visible light that the various novel artificial light sources such as energy-saving lamp issue.Long-term
Blue light illumination retina can generate free radicals, and these free radicals will lead to retinal pigment epithelium decline, so as to cause
A variety of ophthalmology diseases such as retinopathy.
Blue light is largely present in the light such as computer monitor, fluorescent lamp, mobile phone, digital product, display screen, LED, the wave
Blue light in length can be such that the macular area toxin amount in eyes increases, and seriously threaten our eye health.Wherein, wavelength 400-
Shortwave blue light between 450nm is maximum to the extent of injury of retina.
Currently, the research of the near ultraviolet cut-off protective film of relevant report is relatively fewer, multi-layer co-extruded (utilize is focused primarily upon
The refringence of two kinds of materials, multiple-layer stacked realize specific band reflection) and coating process.But its disadvantage is also evident from: work
Skill is complicated, and equipment investment is high, low efficiency, higher cost.
The present invention relates to a kind of reflection-type near ultraviolets to end protective film, only need to be coated with one layer of macromolecule in substrate surface and apply
Layer, is assembled using macromolecular structure, is controlled different polymer monomer combination, initiator amount and initiation conditions, is formed molecule
Density gradient is poor, and then realizes height refringence inside high molecular polymer, realizes height index matching, reaches 400-
The part of 450nm wave band is reflected, and realizes near ultraviolet cutoff function, while the part black light reflected also can be improved colour gamut, increase
The brightness of strong product light source.
Summary of the invention
In order to overcome the complex process of existing near ultraviolet cut film, equipment investment is high, low efficiency, higher cost.The present invention
It is related to a kind of reflection-type near ultraviolet cut-off protective film, which ends protective film simple process and low cost, adhesive force
Good, transparency is high, can reach the part reflection of 400-450nm wave band.
To achieve the above object, the technical solution adopted by the present invention is that:
The present invention relates to a kind of reflection-type near ultraviolet end protective film, which is characterized in that it include high-transparent film substrate and
On film substrate surface, coating near ultraviolet ends polymeric coating layer.
High-transparent film substrate as described above is polyester film, polycarbonate resin, polystyrene film, polyacrylate
One or more of film, polymethacrylates film, polyurethane film, polyvinyl resin and polyvinyl chloride film mix
Close object；The thickness of substrate is at 20-250 μm.
Polymeric coating layer as described above includes: the donor or receptor of hydrogen bond, achiral polymerisable monomer, Chiral polymerisable
Monomer and solvent become crosslinking polymer network by polymerization；The mass percent of the component of achiral polymerisable monomer 1~
Between 50%wt；The constituent mass percentage of Chiral polymerisable monomer is between 1~70%wt；The quality percentage of the component of solvent
Than between 1~80%wt；Further, initiator of the mass percent of component between 0~10%wt is added, accelerates polymerization
Speed；Moistening flatting agent of the mass percent of component between 0.0001~5%wt is added, improves the knot of macromolecule and substrate
Conjunction ability and film forming.
The donor or receptor of hydrogen bond as described above, contain amino, imido grpup, nitro, hydroxyl, carboxyl, pyridyl group, piperidines
One or more group in base, isonicotinic acid.
The chiral primitive of Chiral polymerisable monomer as described above is chiral isoamyl alcohol, chiral sec-octyl alcohol, chiral phenyl second two
One in the chloro- 4- methyl-1-hexanol of alcohol, 6-, the bromo- 4- methyl-1 of 6--hexanol, isobide, anhydromannitol and Binaphthol
It is a or multiple.
Achiral polymerisable monomer or Chiral polymerisable monomer as described above have one or more polymerizable groups, can gather
Conjunction group be acryloyl group, methylacryloyl, fluoropropene base, Chloroallyl, trifluoromethyl acrylic, oxetanyl,
Vinyl ether, vinyl ketone base, dimaleoyl imino, phenyl maleimide base, vinyl, styryl, diacetyl
With one of epoxy group or a variety of.
Initiator as described above is multifunctional initiator and macromole evocating agent, such as crosses ketenes silane acetal, oxidation
Benzoyl, benzoin ethers, benzil ketals class, diaryl iodonium salt, triarylsulfonium salt, diphenyl iodine arsenate, benzene
Ethyl ketone class, benzophenone, 4- methoxyphenyl phenyl-iodide tetrafluoroborate, 4- methoxyphenyl phenyl-iodide hexafluoro phosphonic acids
Salt, 4- tert-butyl-phenyl iodine diphenyl iodine hexafluorophosphonate, 4- methoxyphenyl diphenyl sulfonium tetrahydro phosphonate, triphen
Base sulfonium tetraborate, 4- methoxyphenyl diphenyl sulfonium trifluoromethayl sulfonic acid ester, 4- phenyl thiophenyl diphenyl sulfonium six
One of fluorine arsenate, benzil dimethyl ketal and double-phenylphosphine oxide are a variety of.
Solvent as described above is tetrahydrofuran, acetonitrile, benzene,toluene,xylene, acetone, cyclopropanone, cyclohexanone, toluene
Cyclohexanone, dioxane, ethylene glycol, glycerine, styrene, perchloroethylene, trichloro ethylene, ethylene glycol ether, triethanolamine,
One of hexamethylene, pentane, hexane, octane, ethyl acetate, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether
Or it is several.It is preferred that having good dissolubility energy boiling point between 60-200 DEG C polymer monomer, being non-toxic or low-toxic, corrosion-free
Property, recyclable solvent.
Macromolecule coating fluid as described above further include polymerization inhibitor, defoaming agent, diluent, ultraviolet absorbing agent, alignment agent,
One of surfactant, uv-curable glue and heat-curable glue are a variety of.
Compared with prior art, the invention has the beneficial effects that:
1. manufacture craft of the invention is simple, only it need to be coated with one layer of macromolecule coating fluid in substrate surface, prepared resulting
Near ultraviolet cut film has good thermo mechanical stability and weatherability, and light transmittance is high, nontoxic, applied widely, and more
Layer squeezes out, coating process is compared, and greatly reduces cost；
2. polymer monomer used in the present invention there are several compositions, two or more molecular density products may be implemented, lead to
It crosses chiral molecule cross-link together, high low-refraction collocation in same high polymer may be implemented, reach the portion of 400-450nm wave band
Divide reflection, realizes near ultraviolet cutoff function；Meanwhile the brightness that the blue light of part reflection can be improved colour gamut, enhance light source.
Detailed description of the invention
Fig. 1 is the polymerisable monomer structural formula in one embodiment of the invention in macromolecule coating fluid, wherein (a) is hand
Property polymerisable monomer a structural formula, (b) be achiral monomers polymerized monomer a structural formula.
Fig. 2 is the transmitted light spectrogram of the reflection-type near ultraviolet cut-off protective film provided.
Specific embodiment
Below in conjunction with specific embodiment, technical scheme is described further.
1. the excessively smooth iron plate of tinfoil is put into baking oven first, it is baked to 70-90 DEG C (practical is normally 75-80 DEG C)；
2. 10 parts of 10% polyethyleneimine is secondly taken, 10 parts of Chiral polymerisable monomer (a), achiral polymerisable monomer (b)
10 parts, initiator cross 0.6 part, 0.1 part levelling agent Solvesso150 of ketenes silane acetal, 20 parts of cyclohexanone, 100 parts of toluene,
0.2 part of curing agent DACH, above-mentioned material stirring is uniformly mixed, and near ultraviolet is made and ends macromolecule coating fluid, with RDS4# bar
(10 μm of wet film gap), control wet-film thickness are 2-20 μm and are uniformly coated on 50 μm of the PET without any HC or primer；
3. wet film is put on baking oven tinfoil or iron plate after the completion of coating, solvent is removed to 1min within baking 15 seconds.Due to
There are hydrogen bond action between chiral polymerized monomer and nitroaniline, Chiral polymerisable monomer molecule is migrated to nitrobenzene amine layer, with
Other polymerized monomers form concentration gradient, and then form pitch gradient；
4. finally taking the film out by 40mj/cm2-800mj/cm2UV curing, fixed pitch gradient obtains near ultraviolet
Cut film tests its performance.Transmitted light spectrogram is as shown in Figure 2.
It is finally noted that the purpose for publicizing and implementing mode is to help to further understand the present invention, but ability
The technical staff in domain is understood that without departing from the spirit and scope of the invention and the appended claims, various replacements and
Modification is all possible.Therefore, the present invention should not be limited to embodiment disclosure of that, the scope of protection of present invention with
Subject to the range that claims define.
Claims (9)
1. the present invention relates to a kind of reflection-type near ultraviolet end protective film, which is characterized in that it include high-transparent film substrate and
Film substrate surface is coated with macromolecule near ultraviolet and ends coating, and the near ultraviolet cut-off coating is the high score with reflection function
Sub- coating.
2. a kind of reflection-type near ultraviolet according to claim 1 ends protective film, it is characterised in that: the high-transparent film
Substrate is polyester film, polycarbonate resin, polystyrene film, polyacrylate film, polymethacrylates film, gathers
The mixture of one or more of urethane film, polyvinyl resin and polyvinyl chloride film；The thickness of substrate is at 20-250 μm.
3. a kind of reflection-type near ultraviolet according to claim 1 ends protective film, it is characterised in that: the macromolecule applies
Layer includes: the donor or receptor of hydrogen bond, and achiral polymerisable monomer, Chiral polymerisable monomer and solvent are become by polymerization and handed over
Linked polymer network；The mass percent of the component of achiral polymerisable monomer is between 1~50%wt；Chiral polymerisable monomer
Constituent mass percentage between 1~70%wt；The mass percent of the component of solvent is between 1~80%wt；Further,
Initiator of the mass percent of component between 0~10%wt is added, accelerates polymerization speed；The mass percent of component is added
Moistening flatting agent between 0.0001~5%wt improves the binding ability and film forming of macromolecule and substrate.
4. a kind of reflection-type near ultraviolet ends protective film according to claim 3, it is characterised in that: the donor of the hydrogen bond or
Person's receptor contains one or more base in amino, imido grpup, nitro, hydroxyl, carboxyl, pyridyl group, piperidyl, isonicotinic acid
Group.
5. a kind of reflection-type near ultraviolet according to claim 3 ends protective film, it is characterised in that: the Chiral polymerisable
The chiral primitive of monomer is chiral isoamyl alcohol, chiral sec-octyl alcohol, chiral styrene glycol, the chloro- 4- methyl-1-hexanol of 6-, 6- bromo-
One or more of 4- methyl-1-hexanol, isobide, anhydromannitol and Binaphthol.
6. a kind of reflection-type near ultraviolet according to claim 3 ends protective film, it is characterised in that: the achirality can gather
Closing monomer or Chiral polymerisable monomer has one or more polymerizable groups, and polymerizable groups are acryloyl group, metering system
Acyl group, fluoropropene base, Chloroallyl, trifluoromethyl acrylic, oxetanyl, vinyl ether, vinyl ketone base, Malaysia
One of imide, phenyl maleimide base, vinyl, styryl, diacetyl and epoxy group are a variety of.
7. a kind of reflection-type near ultraviolet according to claim 3 ends protective film, it is characterised in that: the initiator is more
Functional group initiator and macromole evocating agent such as cross ketenes silane acetal, Benzoyl Oxide, benzoin ethers, benzil contracting
Ketone, diaryl iodonium salt, triarylsulfonium salt, diphenyl iodine arsenate, acetophenones, benzophenone, 4- methoxyl group
Phenyl iodine tetrafluoroborate, 4- methoxyphenyl phenyl-iodide hexafluorophosphonate, 4- tert-butyl-phenyl iodine diphenyl
Iodine hexafluorophosphonate, 4- methoxyphenyl diphenyl sulfonium tetrahydro phosphonate, triphenylsulfonium tetraborate, 4- methoxybenzene
Base diphenyl sulfonium trifluoromethayl sulfonic acid ester, 4- phenyl thiophenyl diphenyl sulfonium hexafluoro arsenate, benzil dimethyl ketal
With one of double-phenylphosphine oxide or a variety of.
8. a kind of reflection-type near ultraviolet according to claim 3 ends protective film, it is characterised in that: the solvent is four
Hydrogen furans, acetonitrile, benzene,toluene,xylene, acetone, cyclopropanone, cyclohexanone, toluene cyclohexanone, dioxane, ethylene glycol, the third three
Alcohol, styrene, perchloroethylene, trichloro ethylene, ethylene glycol ether, triethanolamine, hexamethylene, pentane, hexane, octane, acetic acid
One or more of ethyl ester, glycol monoethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether.It is preferred that having to polymer monomer
Solvent of the good dissolubility energy boiling point between 60 DEG C -200 DEG C, non-toxic or low-toxic, non-corrosive, recyclable.
9. a kind of reflection-type near ultraviolet ends protective film according to claim 3, it is characterised in that: the macromolecule coating
Liquid further includes polymerization inhibitor, defoaming agent, diluent, ultraviolet absorbing agent, alignment agent, surfactant, uv-curable glue and thermosetting
Change one of glue or a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032405.3A CN109694487A (en) | 2017-10-23 | 2017-10-23 | A kind of reflection-type near ultraviolet cut-off protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711032405.3A CN109694487A (en) | 2017-10-23 | 2017-10-23 | A kind of reflection-type near ultraviolet cut-off protective film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109694487A true CN109694487A (en) | 2019-04-30 |
Family
ID=66230009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711032405.3A Withdrawn CN109694487A (en) | 2017-10-23 | 2017-10-23 | A kind of reflection-type near ultraviolet cut-off protective film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109694487A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117409A (en) * | 2019-12-31 | 2020-05-08 | 苏州艾科迪新材料科技有限公司 | Colorful polymer coating and preparation method thereof |
| CN112694634A (en) * | 2020-12-22 | 2021-04-23 | 海安浩驰科技有限公司 | Preparation method and application of film material with spectrum selective reflection colorful coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1414048A (en) * | 2001-10-25 | 2003-04-30 | 捷时雅株式会社 | Solidified composition forming as protective membrane, forming method of the membrance and the membrane |
| US20050202263A1 (en) * | 2004-03-09 | 2005-09-15 | Jonathan Sargent | Barrier layer to prevent the loss of additives in an underlying layer |
| CN105229090A (en) * | 2013-05-31 | 2016-01-06 | 3M创新有限公司 | LBL self assembly comprises method and the goods of the polymer electrolyte of photoabsorption or Photostabilised compound |
| CN105425327A (en) * | 2015-12-10 | 2016-03-23 | 北京海川利元材料科技有限公司 | Cholesteric liquid crystal and reflective-type circular polarization sheet thereof, and manufacturing method |
-
2017
- 2017-10-23 CN CN201711032405.3A patent/CN109694487A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1414048A (en) * | 2001-10-25 | 2003-04-30 | 捷时雅株式会社 | Solidified composition forming as protective membrane, forming method of the membrance and the membrane |
| US20050202263A1 (en) * | 2004-03-09 | 2005-09-15 | Jonathan Sargent | Barrier layer to prevent the loss of additives in an underlying layer |
| CN105229090A (en) * | 2013-05-31 | 2016-01-06 | 3M创新有限公司 | LBL self assembly comprises method and the goods of the polymer electrolyte of photoabsorption or Photostabilised compound |
| CN105425327A (en) * | 2015-12-10 | 2016-03-23 | 北京海川利元材料科技有限公司 | Cholesteric liquid crystal and reflective-type circular polarization sheet thereof, and manufacturing method |
Non-Patent Citations (1)
| Title |
|---|
| 于文霞: "《商务礼仪》", 30 September 2017, 山东科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117409A (en) * | 2019-12-31 | 2020-05-08 | 苏州艾科迪新材料科技有限公司 | Colorful polymer coating and preparation method thereof |
| CN112694634A (en) * | 2020-12-22 | 2021-04-23 | 海安浩驰科技有限公司 | Preparation method and application of film material with spectrum selective reflection colorful coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109206648A (en) | A kind of reflection-type colorful film | |
| EP0273710B2 (en) | Resin having high refractive index, process for producing said resin and optical materials composed of said resin | |
| CN102763010B (en) | Polarizing plate, method for producing same and image display device comprising same | |
| US9726975B2 (en) | Photoresist composition | |
| CN105492578B (en) | Compound liquid-crystal composition, display element and electric field detector | |
| CN104520337A (en) | Liquid optical adhesive compositions | |
| JP7505760B2 (en) | Blue light blocking system containing pyrazoline and/or cinnamic acid compounds | |
| CN104797672A (en) | Adhesive including pendant (meth) acryloyl groups, article, and method | |
| CN102351978B (en) | Soluble polyfunctional (methyl) acrylate copolymer and manufacture method, curable resin composition and cured article | |
| CN109694487A (en) | A kind of reflection-type near ultraviolet cut-off protective film | |
| CN108727624A (en) | A kind of preparation method and applications of self-assembled nanometer composite high-molecular functional material | |
| CN115305017B (en) | High refractive index optical organic glue composition and preparation method and use method thereof | |
| CN109696720A (en) | A kind of reflection-type near ultraviolet cut-off diffusion barrier | |
| JP2009019157A (en) | Photochromic curable composition | |
| CN106397662B (en) | A kind of acroleic acid microgel latex and preparation method thereof with automatic repair function | |
| CN109455945A (en) | A kind of reflection-type anti-blue light glass and preparation method thereof | |
| CA2581192A1 (en) | Fluoropolymers, methods for their production, and thermosetting compositions containing them | |
| JP3730266B2 (en) | Shading film | |
| WO2012014641A1 (en) | Curable resin composition and molded article | |
| CN109735246A (en) | A kind of cell phone rear cover film and preparation method thereof | |
| CN109694488A (en) | A kind of reflection-type eyeglass near ultraviolet cut film | |
| CN109694490A (en) | A kind of changeable colour near ultraviolet cut-off PET film for vehicle window protection | |
| CN109696719A (en) | A kind of reflection-type near ultraviolet cut-off quantum dot film | |
| CN103589302A (en) | Low-odor ultraviolet curing primer | |
| CN109694489A (en) | A kind of changeable colour near ultraviolet cut-off TPU film for vehicle window protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190430 |
|
| WW01 | Invention patent application withdrawn after publication |