CN107722809A - A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof - Google Patents

A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof Download PDF

Info

Publication number
CN107722809A
CN107722809A CN201711015600.5A CN201711015600A CN107722809A CN 107722809 A CN107722809 A CN 107722809A CN 201711015600 A CN201711015600 A CN 201711015600A CN 107722809 A CN107722809 A CN 107722809A
Authority
CN
China
Prior art keywords
parts
metope
wall finiss
mouldy
coming
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.)
Pending
Application number
CN201711015600.5A
Other languages
Chinese (zh)
Inventor
钟金华
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.)
Guangdong Badelao Building Materials Technology Co ltd
Original Assignee
Guangdong Badelao Building Materials Technology Co ltd
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 Guangdong Badelao Building Materials Technology Co ltd filed Critical Guangdong Badelao Building Materials Technology Co ltd
Priority to CN201711015600.5A priority Critical patent/CN107722809A/en
Publication of CN107722809A publication Critical patent/CN107722809A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16Antifouling paints; Underwater paints
    • C09D5/1687Use of special additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Plant Pathology (AREA)
  • Colloid Chemistry (AREA)

Abstract

The invention discloses a kind of ecological wall finiss for preventing that metope is mouldy, coming off, including following components, as mass fraction:50 60 parts of 30 40 parts of aqueous polyurethane dispersion, 20 35 parts of modification infusorial earth, 10 15 parts of microporous calcium silicate, 10 15 parts of calcium stearate, 35 parts of silicone emulsion, 25 parts of composite assistant, 35 parts of surfactant, 35 parts of antioxidant, 5 10 parts of UV absorbers and deionized water.The invention also discloses a kind of preparation method for the ecological wall finiss for preventing that metope is mouldy, coming off.The wall finiss has oleophobic hydrophobic function, avoid water droplet and greasy dirt is attached to metope, improve the clean performance of wall finiss, and the wall finiss brushing is after metope, because porous material content is high, the sound absorption qualities of metope are substantially increased, there is good soundproof effect, improve the comfortableness of people's living environment.

Description

A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof
Technical field
The present invention relates to wall finiss to produce and process field, specifically a kind of ecological wall finiss for preventing that metope is mouldy, coming off And preparation method thereof.
Background technology
Wall finiss is using extensively in the life and work of people, and especially in finishing field, the use of wall finiss increases Add the aesthetic measure in house, it is welcomed by the people.
As people are to environmental protection and the attention of own health, used emulsion paint need to have the spy of environmental protection in fitment process Do not require, first choice need to meet HJ2537-2014《Environmental labelling product technical requirements water paint》And GB18582-2008《Room Limits of harmful substances in interior trim finishing material interior wall coating》Requirement, but existing wall finiss is after use, is passed through on metope Water droplet and greasy dirt often are attached with, causes metope easily dirty, have impact on the living environment of people.
The content of the invention
It is an object of the invention to provide a kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof, with Solve the problems, such as to propose in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme:
A kind of ecological wall finiss for preventing that metope is mouldy, coming off, including following components, as mass fraction:Water-based poly- ammonia Ester dispersion 30-40 parts, modification infusorial earth 20-35 parts, microporous calcium silicate 10-15 parts, calcium stearate 10-15 parts, silicone emulsion 3-5 parts, composite assistant 2-5 parts, surfactant 3-5 parts, antioxidant 3-5 parts, UV absorbers 5-10 parts and deionization Water 50-60 parts.
As the further scheme of the present invention:The above-mentioned ecological wall finiss for preventing that metope is mouldy, coming off, including with the following group Point, as mass fraction:Aqueous polyurethane dispersion 33-37 parts, modification infusorial earth 23-28 parts, microporous calcium silicate 11-13 parts, Calcium stearate 12-14 parts, silicone emulsion 4-5 parts, composite assistant 2-3 parts, surfactant 3-4 parts, antioxidant 3-5 parts, purple Outer light absorber 8-9 parts and deionized water 50-60 parts.
As further scheme of the invention:The above-mentioned ecological wall finiss for preventing that metope is mouldy, coming off, including with the following group Point, as mass fraction:25 parts of aqueous polyurethane dispersion, 35 parts of modification infusorial earth, 12 parts of microporous calcium silicate, calcium stearate 13 Part, 4 parts of silicone emulsion, 3 parts of composite assistant, 4 parts of surfactant, 4 parts of antioxidant, 8 parts of UV absorbers and deionization 55 parts of water.
As further scheme of the invention:Described modification infusorial earth is that diatomite powder passes through faintly acid copper sulphate Solution is prepared through concussion.
As further scheme of the invention:Described antioxidant is 2,2,6,6- tetramethylpiperidinols, antioxidant For;One kind in 2,6- three-level butyl -4- methylphenols, pentaerythritol ester.
As further scheme of the invention:Described UV absorbers are septichen phenyl ester, 2- (2 ˊ-the ˊ of hydroxyl-5-aminomethyl phenyl) one or more of mixtures in BTA or ESCALOL 567.
The preparation method of the above-mentioned ecological wall finiss for preventing that metope is mouldy, coming off, is concretely comprised the following steps:
S1, diatomite modified:Diatomite addition is entered in copper-bath, is positioned in oscillator and shakes, during concussion Between be 2h, filtering drying grind into powder, vacuum preserves.
S2, modification infusorial earth, microporous calcium silicate and calcium stearate be mixed evenly, cross 300 mesh sieves, pulverize End, prepare intermediate blend A.
S3, intermediate blend A prepared by step S2 is added in deionized water, add aqueous polyurethane dispersion, heating Stirring, heating-up temperature are 40-50 DEG C, stir, prepare solvent.
S4, silicone emulsion, composite assistant and surfactant, mistake after stirring are added in solvent prepared by step S3 Filter, prepares wall finiss crude product.
S5, after addition UV absorbers stir in wall finiss crude product prepared by step S4, it is sealed, produces Finished product.
Compared with prior art, the beneficial effects of the invention are as follows:The wall finiss has oleophobic hydrophobic function, avoids water droplet And greasy dirt is attached to metope, the clean performance of wall finiss is improved, and the wall finiss brushing is after metope, due to porous material Expect that content is high, substantially increase the sound absorption qualities of metope, there is good soundproof effect, improve the comfortable of people's living environment Property.
Embodiment
Technical scheme is described in more detail with reference to embodiment.
Embodiment 1
A kind of ecological wall finiss for preventing that metope is mouldy, coming off, including following components, as mass fraction:Water-based poly- ammonia 30 parts of ester dispersion, 20 parts of modification infusorial earth, 10 parts of microporous calcium silicate, 10 parts of calcium stearate, 3 parts of silicone emulsion, composite assistant 2 Part, 3 parts of surfactant, 3 parts of antioxidant, 5 parts of UV absorbers and 50 parts of deionized water.
Described modification infusorial earth is that diatomite powder is prepared by faintly acid copper-bath through concussion.
Described antioxidant is 2,2,6,6- tetramethylpiperidinols, and antioxidant is;2,6- three-level butyl -4- methylbenzenes One kind in phenol, pentaerythritol ester.
Described UV absorbers are septichen phenyl ester, 2- (the 2 ˊ-ˊ of hydroxyl-5-aminomethyl phenyl) benzo three One or more of mixtures in nitrogen azoles or ESCALOL 567.
A kind of preparation method for the ecological wall finiss for preventing that metope is mouldy described above, coming off, is comprised the following steps that:
S1, diatomite modified:Diatomite addition is entered in copper-bath, is positioned in oscillator and shakes, during concussion Between be 2h, filtering drying grind into powder, vacuum preserves.
S2, modification infusorial earth, microporous calcium silicate and calcium stearate be mixed evenly, cross 300 mesh sieves, pulverize End, prepare intermediate blend A.
S3, intermediate blend A prepared by step S2 is added in deionized water, add aqueous polyurethane dispersion, heating Stirring, heating-up temperature are 40-50 DEG C, stir, prepare solvent.
S4, silicone emulsion, composite assistant and surfactant, mistake after stirring are added in solvent prepared by step S3 Filter, prepares wall finiss crude product.
S5, after addition UV absorbers stir in wall finiss crude product prepared by step S4, it is sealed, produces Finished product.
Embodiment 2
A kind of ecological wall finiss for preventing that metope is mouldy, coming off, including following components, as mass fraction:Water-based poly- ammonia 35 parts of ester dispersion, 25 parts of modification infusorial earth, 12 parts of microporous calcium silicate, 13 parts of calcium stearate, 4 parts of silicone emulsion, composite assistant 3 Part, 4 parts of surfactant, 4 parts of antioxidant, 8 parts of UV absorbers and 55 parts of deionized water.
Described modification infusorial earth is that diatomite powder is prepared by faintly acid copper-bath through concussion.
Described antioxidant is 2,2,6,6- tetramethylpiperidinols, and antioxidant is;2,6- three-level butyl -4- methylbenzenes One kind in phenol, pentaerythritol ester.
Described UV absorbers are septichen phenyl ester, 2- (the 2 ˊ-ˊ of hydroxyl-5-aminomethyl phenyl) benzo three One or more of mixtures in nitrogen azoles or ESCALOL 567.
A kind of preparation method for the ecological wall finiss for preventing that metope is mouldy described above, coming off, is comprised the following steps that:
S1, diatomite modified:Diatomite addition is entered in copper-bath, is positioned in oscillator and shakes, during concussion Between be 2h, filtering drying grind into powder, vacuum preserves.
S2, modification infusorial earth, microporous calcium silicate and calcium stearate be mixed evenly, cross 300 mesh sieves, pulverize End, prepare intermediate blend A.
S3, intermediate blend A prepared by step S2 is added in deionized water, add aqueous polyurethane dispersion, heating Stirring, heating-up temperature are 40-50 DEG C, stir, prepare solvent.
S4, silicone emulsion, composite assistant and surfactant, mistake after stirring are added in solvent prepared by step S3 Filter, prepares wall finiss crude product.
S5, after addition UV absorbers stir in wall finiss crude product prepared by step S4, it is sealed, produces Finished product.
Embodiment 3
A kind of ecological wall finiss for preventing that metope is mouldy, coming off, including following components, as mass fraction:Water-based poly- ammonia 40 parts of ester dispersion, 40 parts of modification infusorial earth, 15 parts of microporous calcium silicate, 15 parts of calcium stearate, 5 parts of silicone emulsion, composite assistant 5 Part, 5 parts of surfactant, 5 parts of antioxidant, 10 parts of UV absorbers and 60 parts of deionized water.
Described modification infusorial earth is that diatomite powder is prepared by faintly acid copper-bath through concussion.
Described antioxidant is 2,2,6,6- tetramethylpiperidinols, and antioxidant is;2,6- three-level butyl -4- methylbenzenes One kind in phenol, pentaerythritol ester.
Described UV absorbers are septichen phenyl ester, 2- (the 2 ˊ-ˊ of hydroxyl-5-aminomethyl phenyl) benzo three One or more of mixtures in nitrogen azoles or ESCALOL 567.
A kind of preparation method for the ecological wall finiss for preventing that metope is mouldy described above, coming off, is comprised the following steps that:
S1, diatomite modified:Diatomite addition is entered in copper-bath, is positioned in oscillator and shakes, during concussion Between be 2h, filtering drying grind into powder, vacuum preserves.
S2, modification infusorial earth, microporous calcium silicate and calcium stearate be mixed evenly, cross 300 mesh sieves, pulverize End, prepare intermediate blend A.
S3, intermediate blend A prepared by step S2 is added in deionized water, add aqueous polyurethane dispersion, heating Stirring, heating-up temperature are 40-50 DEG C, stir, prepare solvent.
S4, silicone emulsion, composite assistant and surfactant, mistake after stirring are added in solvent prepared by step S3 Filter, prepares wall finiss crude product.
S5, after addition UV absorbers stir in wall finiss crude product prepared by step S4, it is sealed, produces Finished product.
The better embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party Formula, can also be on the premise of present inventive concept not be departed from one skilled in the relevant art's possessed knowledge Various changes can be made.

Claims (7)

1. a kind of ecological wall finiss for preventing that metope is mouldy, coming off, it is characterised in that including following components, as mass fraction: Aqueous polyurethane dispersion 30-40 parts, modification infusorial earth 20-35 parts, microporous calcium silicate 10-15 parts, calcium stearate 10-15 parts, Silicone emulsion 3-5 parts, composite assistant 2-5 parts, surfactant 3-5 parts, antioxidant 3-5 parts, UV absorbers 5-10 parts With deionized water 50-60 parts.
A kind of 2. ecological wall finiss for preventing that metope is mouldy, coming off according to claim 1, it is characterised in that including with Lower component, as mass fraction:Aqueous polyurethane dispersion 33-37 parts, modification infusorial earth 23-28 parts, microporous calcium silicate 11-13 Part, calcium stearate 12-14 parts, silicone emulsion 4-5 parts, composite assistant 2-3 parts, surfactant 3-4 parts, antioxidant 3-5 parts, UV absorbers 8-9 parts and deionized water 50-60 parts.
A kind of 3. ecological wall finiss for preventing that metope is mouldy, coming off according to claim 1, it is characterised in that including with Lower component, as mass fraction:25 parts of aqueous polyurethane dispersion, 35 parts of modification infusorial earth, 12 parts of microporous calcium silicate, stearic acid 13 parts of calcium, 4 parts of silicone emulsion, 3 parts of composite assistant, 4 parts of surfactant, 4 parts of antioxidant, 8 parts of UV absorbers and go 55 parts of ionized water.
4. according to a kind of any described ecological wall finisses for preventing that metope is mouldy, coming off of claim 1-3, it is characterised in that Described modification infusorial earth is that diatomite powder is prepared by faintly acid copper-bath through concussion.
5. a kind of ecological wall finiss for preventing that metope is mouldy, coming off according to claim 4, it is characterised in that described Antioxidant is 2,2,6,6- tetramethylpiperidinols, and antioxidant is;In 2,6- three-level butyl -4- methylphenols, pentaerythritol ester One kind.
6. a kind of ecological wall finiss for preventing that metope is mouldy, coming off according to claim 5, it is characterised in that described UV absorbers are septichen phenyl ester, 2- (the 2 ˊ-ˊ of hydroxyl-5-aminomethyl phenyl) BTAs or 2- hydroxyls-4- One or more of mixtures in methoxy benzophenone.
7. a kind of a kind of preparation method of ecological wall finiss for preventing that metope is mouldy, coming off as described in claim 1-3 is any, Characterized in that, concretely comprise the following steps:
S1, diatomite modified:By diatomite addition enter copper-bath in, be positioned in oscillator and shake, concussion the time be 2h, filtering drying grind into powder, vacuum preserve.
S2, modification infusorial earth, microporous calcium silicate and calcium stearate be mixed evenly, cross 300 mesh sieves, grind into powder, system Standby intermediate blend A.
S3, the intermediate blend A for adding step S2 preparations in deionized water, addition aqueous polyurethane dispersion, heating stirring, Heating-up temperature is 40-50 DEG C, stirs, prepares solvent.
S4, silicone emulsion, composite assistant and surfactant are added in solvent prepared by step S3, are filtered after stirring, Prepare wall finiss crude product.
S5, after addition UV absorbers stir in wall finiss crude product prepared by step S4, it is sealed, produces into Product.
CN201711015600.5A 2017-10-25 2017-10-25 A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof Pending CN107722809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711015600.5A CN107722809A (en) 2017-10-25 2017-10-25 A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711015600.5A CN107722809A (en) 2017-10-25 2017-10-25 A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107722809A true CN107722809A (en) 2018-02-23

Family

ID=61214011

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711015600.5A Pending CN107722809A (en) 2017-10-25 2017-10-25 A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107722809A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102910849A (en) * 2012-10-23 2013-02-06 长白朝鲜族自治县天宝硅藻土功能制品有限公司 Modified diatomite and preparation method of modified diatomite preparation method, as well as compound external wall insulation material containing modified diatomite and preparation method of material
KR101405322B1 (en) * 2014-02-28 2014-06-11 부림산업개발(주) Inorganic ceramic paint for curing at room temperature and painting method using the same
CN104371397A (en) * 2014-10-31 2015-02-25 浙江乔兴建设集团湖州智能科技有限公司 Novel internal wall paint
CN105505177A (en) * 2016-02-03 2016-04-20 宁波保税区韬鸿化工科技有限公司 Composite photocatalyst air purification water-based interior wall coating and preparation method thereof
CN106085063A (en) * 2016-06-12 2016-11-09 芜湖县双宝建材有限公司 A kind of anti tear environment protecting water-based paint
CN107189659A (en) * 2017-06-12 2017-09-22 安徽名士达新材料有限公司 A kind of antibacterial water color polyurethane carpentry paint and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102910849A (en) * 2012-10-23 2013-02-06 长白朝鲜族自治县天宝硅藻土功能制品有限公司 Modified diatomite and preparation method of modified diatomite preparation method, as well as compound external wall insulation material containing modified diatomite and preparation method of material
KR101405322B1 (en) * 2014-02-28 2014-06-11 부림산업개발(주) Inorganic ceramic paint for curing at room temperature and painting method using the same
CN104371397A (en) * 2014-10-31 2015-02-25 浙江乔兴建设集团湖州智能科技有限公司 Novel internal wall paint
CN105505177A (en) * 2016-02-03 2016-04-20 宁波保税区韬鸿化工科技有限公司 Composite photocatalyst air purification water-based interior wall coating and preparation method thereof
CN106085063A (en) * 2016-06-12 2016-11-09 芜湖县双宝建材有限公司 A kind of anti tear environment protecting water-based paint
CN107189659A (en) * 2017-06-12 2017-09-22 安徽名士达新材料有限公司 A kind of antibacterial water color polyurethane carpentry paint and preparation method thereof

Similar Documents

Publication Publication Date Title
CN103881500B (en) High-weather-resistance high-stain-resistance white paint for outdoor woodware and preparation method of paint
CN103396710B (en) A kind of water-based indoor ultrathin steel structure frie retardant coating and preparation technology thereof
CN104497765A (en) Inner wall latex paint capable of removing formaldehyde and preparation method of inner wall latex paint
EP0551378B1 (en) Method of activating n-methyl-2-pyrrolidone (nmp) and/or gamma-butyrolactone (blo) varnish and paint remover solvents
CN104789123B (en) One kind suppresses Chlorococcum growth one-component antifouling flush paint and preparation method thereof
CN102229771A (en) Diatomaceous earth active paint and preparation method thereof
CN105295459A (en) Ecological shell powder wall paint
CN108912995B (en) Environment-friendly water-based two-component polyurethane anticorrosive finish paint and preparation method thereof
CN107118648A (en) A kind of new type environment friendly coating and preparation method thereof
CN110317499A (en) A kind of inner-wall coating composition and preparation method thereof with visible light catalytic effect
CN110982354A (en) Antibacterial and mildew-proof interior wall coating for building and preparation method and application thereof
CN102188782B (en) Nano infiltration based method for clearing and solidification of free formaldehyde in biotype plate
CN105295622A (en) Ecological shell powder coating substrate
CN113122030A (en) Diatomite modified inorganic water-based paint and preparation method thereof
CN104277638A (en) Anti-oil-pollution anti-bacterial self-cleaning type water-based paint and preparation method thereof
CN109135517A (en) A kind of water-based epoxy acrylic anticorrosive paint
CN107502114A (en) A kind of water paint for internal walls for formaldehyde absorbing and preparation method thereof
CN107722809A (en) A kind of ecological wall finiss for preventing that metope is mouldy, coming off and preparation method thereof
CN102850863B (en) A kind of Five-in-one wall finish and production technology thereof
CN103131229B (en) Sealant used for aqueous acrylic acid ester emulsion coating and application method
WO2009092725A3 (en) Coated and functionalized particles, polymer containing same, method for preparing same and uses thereof
US20230174819A1 (en) Rapid hydrophobic surface modification compositions and methods of use thereof
CN105219246B (en) A kind of water-based warm wooden priming paint and preparation method thereof
CN104419276A (en) Graffiti-resistant interior wall paint formula and preparation method thereof
CN110373053A (en) A kind of environment-friendly type glass frosting water paint, and its preparation method and application

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
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180223