CN108034351A - A kind of one-component coarse granule sealing strip coating and preparation method thereof - Google Patents

A kind of one-component coarse granule sealing strip coating and preparation method thereof Download PDF

Info

Publication number
CN108034351A
CN108034351A CN201711249801.1A CN201711249801A CN108034351A CN 108034351 A CN108034351 A CN 108034351A CN 201711249801 A CN201711249801 A CN 201711249801A CN 108034351 A CN108034351 A CN 108034351A
Authority
CN
China
Prior art keywords
sealing strip
coating
coarse granule
strip coating
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711249801.1A
Other languages
Chinese (zh)
Other versions
CN108034351B (en
Inventor
王新轲
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.)
SHANGHAI 3N CHEMICALS CO Ltd
Original Assignee
SHANGHAI 3N CHEMICALS 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 SHANGHAI 3N CHEMICALS CO Ltd filed Critical SHANGHAI 3N CHEMICALS CO Ltd
Priority to CN201711249801.1A priority Critical patent/CN108034351B/en
Publication of CN108034351A publication Critical patent/CN108034351A/en
Application granted granted Critical
Publication of CN108034351B publication Critical patent/CN108034351B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C09D175/06Polyurethanes from polyesters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Sealing Material Composition (AREA)

Abstract

The invention discloses a kind of one-component coarse granule sealing strip coating and preparation method thereof, film forming matter, solvent, feature powder and a variety of auxiliary agents are included;The auxiliary agent includes carbon black, defoamer, dispersant, wetting agent, hand feeling agent and auxiliary rheological agents.The present invention reduces the friction coefficient of coating and eliminates the automobile abnormal sound that sealing strip is produced with metal plate friction when distorting road traveling, increase the wear-resisting property of weather strip for automobile by adding bulky grain feature powder;It can slow down particle precipitation by adding auxiliary rheological agents, improve the storage stability of coating;Pliability, the wearability of sealing strip coating using polycarbonate polyurethane resin tooth;The organic siliconresin of addition enhances the feel and heat resistance of sealing strip coating;Organic solvent is replaced by solvent of water, there is the feature of environmental protection;Addition moisture dissipates blocked isocyanate, avoids needing additionally to add curing agent during two-component coating use, and use and storage are more convenient, further increases coating physical property.

Description

A kind of one-component coarse granule sealing strip coating and preparation method thereof
Technical field
The present invention relates to a kind of sealing strip coating and preparation method thereof, more particularly to a kind of one-component coarse granule sealing bar painting Material and preparation method thereof.
Background technology
One of the important spare part of weather strip for automobile as automobile, is widely used in arrangements for automotive doors, luggage case and standby The positions such as case, play sealing function, can prevent the entrance of exterior dust storm and rainwater dust, moreover it is possible to play damping, decoration and Sound insulation etc. acts on.Sealing strip material is mainly EPDM blown rubbers, general using in the side of one coating of sealing strip surface spraying Method, increase sealing strip wear-resisting property, anti-pollution characteristic, improves service life.
Automobile sealing strip when distorting road traveling can easily produce abnormal sound, can not only reduce visitor with metal plate friction at present Comfort when family is ridden, and the service life of weather strip for automobile can be reduced, therefore reduce abnormal sound and be increasingly becoming automobile engineering The emphasis of teacher's concern.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of one-component coarse granule sealing strip coating, can substantially reduce Automobile sealing strip when distorting road traveling produces abnormal sound with metal plate friction, increases the wear-resisting property of weather strip for automobile, improves car Comfort when with the service life of sealing strip and by bus.
The present invention is to provide a kind of one-component coarse granule sealing strip to solve the technical solution that above-mentioned technical problem uses Coating, includes film forming matter, solvent, feature powder and a variety of auxiliary agents.
Above-mentioned one-component coarse granule sealing strip coating, wherein, the film forming matter includes waterborne polyurethane resin, has Machine silicones, watersoluble chlorinated polyolefin adhesion promoter and moisture dissipate blocked isocyanate;The solvent is deionization Water;The feature powder is polyamide powder;The auxiliary agent includes carbon black, defoamer, dispersant, wetting agent, feel Agent and auxiliary rheological agents.
Above-mentioned one-component coarse granule sealing strip coating, wherein, the mass percentage of each component is as follows:
Above-mentioned one-component coarse granule sealing strip coating, wherein, the aqueous polyurethane gathers for waterborne, polycarbonate type Urethane resin.
Above-mentioned one-component coarse granule sealing strip coating, wherein, the auxiliary rheological agents are polamides, add water Property coating after formed with thixotropic fluidity tridimensional network.
Above-mentioned one-component coarse granule sealing strip coating, wherein, the powder is polyamide powder, its particle diameter distribution compared with It is narrow, average grain diameter 80um.
Above-mentioned one-component coarse granule sealing strip coating, wherein, the moisture dissipates the deblocking temperature of blocked isocyanate For 110-120 DEG C.
The present invention also provides a kind of preparation method of one-component coarse granule sealing strip coating to solve above-mentioned technical problem, its In, in turn include the following steps:A) polyurethane resin, defoamer, dispersant, wetting agent are added sequentially in reaction kettle successively Stirring;B) polyamide powder stirring is added;C) plus hand feeling agent, carbon black, blocked isocyanate and auxiliary rheological agents stir, Ran Houjia Enter deionized water dilution;D) plus coating finished product is made in organic siliconresin, watersoluble chlorinated polyolefin
The preparation method of above-mentioned one-component coarse granule sealing strip coating, wherein, it is defoamer in the step a), scattered Agent, wetting agent are added with stirring is linear, and speed of agitator turns/min, stir mixing 30min for 800-1000;In the step b) first Speed of agitator is reduced to 500-800 and turns/min, polyamide powder is then added, increases mixing speed extremely after addition 1000-1400 turns/min, jitter time 40min;In the step c) first by mixing speed be reduced to 800-1000 turn/ Min, then sequentially adds hand feeling agent, carbon black, blocked isocyanate, auxiliary rheological agents stirring, then adds deionized water dilution, Time is 30min;Mixing speed is reduced to 500-600 turns/min and sequentially added in the step d) and adds organic siliconresin, water Property chloridized polyolefin system allocated, time 20min is finally filtered with 100 mesh filter cloths, packing, and coating finished product is made.
The present invention contrast prior art has following beneficial effect:One-component coarse granule provided by the invention seals bar painting Material, due to the addition of coarse granule Silon powder, not only reduces automobile sealing strip when distorting road traveling and rubs with metal plate Wipe the abnormal sound produced, moreover it is possible to increase the wear-resisting property of weather strip for automobile, to improving the service life of automobile sealing strip and riding When comfort play positive effect;Particle layering can be reduced by adding auxiliary rheological agents, improves the storage stability of coating; Pliability, the wearability of sealing strip coating using polycarbonate polyurethane resin tooth;The organic siliconresin enhancing of addition The feel and heat resistance of sealing strip coating;Addition moisture dissipates blocked isocyanate, avoids needing during two-component coating use Curing agent is additionally added, reduces manually and avoids two-component coating preparing the defects of rear usage time is short, use and deposit Store up more convenient.
Brief description of the drawings
Fig. 1 is one-component coarse granule sealing strip coating preparation flow diagram of the present invention;
Fig. 2 is the electron micrograph of coating layer thickness after one-component coarse granule coating spraying prepared by the embodiment of the present invention;
Fig. 3 is certain existing electron micrograph without coating layer thickness after particulate coating material spraying.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
One-component coarse granule sealing strip coating provided by the invention, including it is film forming matter, solvent, feature powder, a variety of Auxiliary agent, the film forming matter include waterborne polyurethane resin, organic siliconresin, watersoluble chlorinated polyolefin adhesion promoter, Moisture dissipates blocked isocyanate;The solvent is deionized water;The feature powder is polyamide powder;Described Auxiliary agent includes carbon black, defoamer, dispersant, wetting agent, hand feeling agent, auxiliary rheological agents, and the mass percentage of each component is such as Under:
One-component coarse granule sealing strip coating provided by the invention, the active ingredient of the auxiliary rheological agents is polyamide-based Material, after adding water paint, can form tridimensional network in system used, thixotropic fluidity be produced, so as to prevent pigment Sedimentation and improvement film sag resistance;For content between 0.2%-0.4%, coarse granule sealing strip coating appearance performance is optimal, applies Expect that storage stability is optimal, spraying effect is optimal;The powder is polyamide powder, its particle diameter distribution is relatively narrow, average grain diameter In 80um or so;The moisture dissipates 110-120 DEG C of the deblocking temperature of blocked isocyanate, can increase coating physical property and Adhesive force.
Fig. 1 is referred to, the preparation method of one-component coarse granule sealing strip coating provided by the invention is as follows:Respectively will Two kinds of polyurethane resins of 34.8kg and 17.4kg, defoamer 0.4kg, dispersant 0.8kg, wetting agent 0.4kg are added sequentially to In reaction kettle, stir mixing, speed of agitator is 800 turns/min, mixing time 30min, fully by auxiliary agent (defoaming, scattered, profit It is wet) it is dispersed in polyurethane resin.
Mixing speed is reduced to 600 turns/min, prevents from splashing when adding powder, then adds coarse grained polyamide powder 11kg, part is taken out from having measured in advance in 58.55kg deionized waters, viscous wall powder is washed out with water, then improve speed of agitator and arrive 1200 turns/min, jitter time 40min, so that powder lot dispersing is uniform.
Mixing speed is reduced to 800 turns/min, it is different then to sequentially add hand feeling agent 2.08kg, carbon black 3.41kg, enclosed type Cyanate 20.32kg, auxiliary rheological agents 0.4kg, deionized water, jitter time 30min.
Mixing speed is reduced to 600 turns/min, a large amount of bubbles of high-speed stirred generation always is avoided and causes mechanical demulsification, add Enter organic siliconresin 30.5kg, watersoluble chlorinated vistanex 15.3kg, the allotment time is 20min.
Finally filtered with 100 mesh filter cloths, packing, it is about 200kg that coating finished product, which is made,.One-component prepared by embodiment The 50 DEG C of storage experiments of coarse granule sealing strip coating and the agranular sealing strip coating of one-component, the results are shown in Table 1.
Table 1
By the one-component coarse granule sealing strip coating prepared in above-described embodiment and existing one-component without coarse grained close Strip of paper used for sealing coating is sprayed on sponge strip seal respectively, drying condition:200 DEG C/3min, applied respectively using testing electronic microscope The appearance of layer is as shown in Figure 2 and Figure 3:Sealing strip is according to standard GMW14170 standard wear-resisting tests, 1kg load glass bistriques, test It the results are shown in Table 2.
Table 2
Therefore one-component coarse granule sealing strip coating produced by the present invention, due to adding feature powder, not only drop The low automobile abnormal sound that sealing strip is produced with metal plate friction when distorting road traveling, moreover it is possible to increase the wearability of weather strip for automobile Energy, improves the service life of weather strip for automobile.It can slow down particle layering by adding auxiliary rheological agents, improve the storage of coating Stability.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill Art personnel, without departing from the spirit and scope of the present invention, when can make a little modification and it is perfect, therefore the present invention protection model Enclose to work as and be subject to what claims were defined.

Claims (9)

1. a kind of one-component coarse granule sealing strip coating, it is characterised in that include film forming matter, solvent, feature powder and more Kind auxiliary agent.
2. one-component coarse granule sealing strip coating as claimed in claim 1, it is characterised in that the film forming matter includes water Property polyurethane resin, organic siliconresin, watersoluble chlorinated polyolefin adhesion promoter and moisture dissipate blocked isocyanate;It is described Solvent be deionized water;The feature powder is polyamide powder;The auxiliary agent includes carbon black, defoamer, disperses Agent, wetting agent, hand feeling agent and auxiliary rheological agents.
3. one-component coarse granule sealing strip coating as claimed in claim 2, it is characterised in that the mass percentage of each component It is as follows:
4. one-component coarse granule sealing strip coating as claimed in claim 2, it is characterised in that the aqueous polyurethane is water Property polycarbonate polyurethane resin.
5. one-component coarse granule sealing strip coating as claimed in claim 2, it is characterised in that the auxiliary rheological agents are polyamides Amine substance, the tridimensional network with thixotropic fluidity is formed after adding water paint.
6. one-component coarse granule sealing strip coating as claimed in claim 2, it is characterised in that the powder is Silon Material, its particle diameter distribution is relatively narrow, average grain diameter 80um.
7. one-component coarse granule sealing strip coating as claimed in claim 2, it is characterised in that the moisture dissipates enclosed type isocyanide The deblocking temperature of acid esters is 110-120 DEG C.
8. a kind of preparation method of one-component coarse granule sealing strip coating, it is characterised in that in turn include the following steps:
A) successively polyurethane resin, defoamer, dispersant, wetting agent are added sequentially to stir in reaction kettle;
B) polyamide powder stirring is added;
C) plus hand feeling agent, carbon black, blocked isocyanate and auxiliary rheological agents stir, and then add deionized water dilution;
D) plus coating finished product is made in organic siliconresin, watersoluble chlorinated polyolefin.
9. the preparation method of one-component coarse granule sealing strip coating according to claim 8, it is characterised in that the step It is rapid a) in defoamer, dispersant, wetting agent added with stirring is linear, speed of agitator turns/min, stir mixing for 800-1000 30min;Speed of agitator is first reduced to 500-800 in the step b) and turns/min, then adds polyamide powder, addition finishes Afterwards increase mixing speed to 1000-1400 turn/min, jitter time 40min;First mixing speed is dropped in the step c) As low as 800-1000 turns/min, then sequentially adds hand feeling agent, carbon black, blocked isocyanate, auxiliary rheological agents stirring, Ran Houjia Enter deionized water dilution, time 30min;Mixing speed is reduced to 500-600 turns/min in the step d) to sequentially add Organic siliconresin, watersoluble chlorinated polyolefin system is added to be allocated, time 20min, is finally filtered with 100 mesh filter cloths, packing, Coating finished product is made.
CN201711249801.1A 2017-12-01 2017-12-01 Single-component coarse-particle sealing strip coating and preparation method thereof Active CN108034351B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711249801.1A CN108034351B (en) 2017-12-01 2017-12-01 Single-component coarse-particle sealing strip coating and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711249801.1A CN108034351B (en) 2017-12-01 2017-12-01 Single-component coarse-particle sealing strip coating and preparation method thereof

Publications (2)

Publication Number Publication Date
CN108034351A true CN108034351A (en) 2018-05-15
CN108034351B CN108034351B (en) 2020-10-23

Family

ID=62095126

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711249801.1A Active CN108034351B (en) 2017-12-01 2017-12-01 Single-component coarse-particle sealing strip coating and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108034351B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112920705A (en) * 2021-01-20 2021-06-08 兴科电子(东莞)有限公司 High-wear-resistance matte hand feeling oil and preparation method and application method thereof
CN113773738A (en) * 2021-09-13 2021-12-10 陈正林 Automobile sealing strip front end spraying coating and preparation method thereof
CN114798289A (en) * 2022-05-24 2022-07-29 建新赵氏科技股份有限公司 Spraying method for automobile frameless sealing strip
WO2024174410A1 (en) * 2023-02-24 2024-08-29 上海蓝欧化工科技有限公司 Water-based coating for front-end spraying of automobile sealing strip, and preparation method and application method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101161746A (en) * 2006-10-12 2008-04-16 国家淀粉及化学投资控股公司 Waterbased low noise generating coating
CN102040905A (en) * 2010-11-30 2011-05-04 上海蓝欧化工科技有限公司 Water-base coating composition and preparation method thereof
CN106700918A (en) * 2017-01-09 2017-05-24 上海三恩化工有限公司 Coating for flocking tape roller coating and preparation method of coating

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101161746A (en) * 2006-10-12 2008-04-16 国家淀粉及化学投资控股公司 Waterbased low noise generating coating
CN102040905A (en) * 2010-11-30 2011-05-04 上海蓝欧化工科技有限公司 Water-base coating composition and preparation method thereof
CN106700918A (en) * 2017-01-09 2017-05-24 上海三恩化工有限公司 Coating for flocking tape roller coating and preparation method of coating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱万强: "《涂料基础教程》", 30 June 2012, 西南交通大学出版社 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112920705A (en) * 2021-01-20 2021-06-08 兴科电子(东莞)有限公司 High-wear-resistance matte hand feeling oil and preparation method and application method thereof
CN112920705B (en) * 2021-01-20 2022-04-22 兴科电子(东莞)有限公司 High-wear-resistance matte hand feeling oil and preparation method and application method thereof
CN113773738A (en) * 2021-09-13 2021-12-10 陈正林 Automobile sealing strip front end spraying coating and preparation method thereof
CN114798289A (en) * 2022-05-24 2022-07-29 建新赵氏科技股份有限公司 Spraying method for automobile frameless sealing strip
CN114798289B (en) * 2022-05-24 2023-08-25 建新赵氏科技股份有限公司 Spraying method for frameless sealing strip of automobile
WO2024174410A1 (en) * 2023-02-24 2024-08-29 上海蓝欧化工科技有限公司 Water-based coating for front-end spraying of automobile sealing strip, and preparation method and application method therefor

Also Published As

Publication number Publication date
CN108034351B (en) 2020-10-23

Similar Documents

Publication Publication Date Title
CN108034351A (en) A kind of one-component coarse granule sealing strip coating and preparation method thereof
CN100554352C (en) The preparation method of the nanometer aqueous automobile paint of scrape resistant
CN103146289B (en) A kind of automatically cleaning anti-corrosion and super-weatherability powder coating and its preparation method and application
CN101250376B (en) Silicone exterior wall paint and preparation method thereof
KR100928798B1 (en) Chromium-free resin solution composition with improved alkali resistance and processability, surface treatment method and surface treated steel sheet using same
CN103260775B (en) Method for the formation of multi-layer paint films
CN101111629A (en) Chrome free composition for metal surface treatment and surface-treated metal sheet
CN103205184A (en) Polyester powder coating for preventing auto parts from being corroded and weathered
CN107163810A (en) A kind of low VOC TPO automotive interior materials and preparation method thereof
CN107892871A (en) A kind of anticorrosion microwave absorbing coating and preparation method thereof
CN107523193A (en) A kind of high salt spray resistance of magnesium alloy substrates weather-proof protective coating, preparation method and application method by force
JPWO2009031198A1 (en) Method for forming multilayer coating film and method for producing coated product
CN106987201A (en) Aqueous polyurethane floating coating and preparation method thereof
KR20130013232A (en) Hybrid glossless clear paint composition for vehicles
JP2024524111A (en) Multi-component powder coating compositions and methods for heat-sensitive substrates
CN108912960A (en) A kind of selfreparing anticorrosive paint
CN107053779B (en) A kind of slim half overlay film television set metal backing
CN108329801A (en) A kind of environment protection integrated waterproof coating and preparation method thereof
CN107793653A (en) A kind of imitative metallochrome of high flowing is exempted to spray ASA materials and preparation method thereof
CN107418442A (en) A kind of new hydrophilic glass self-cleaning coating and preparation method thereof
CN208760395U (en) A kind of automobile back door balustrade exterior panelling
CN109468019A (en) A kind of solvent-free protective coating and preparation method suitable for wide variety of substrates
CN108084840A (en) A kind of pure epoxy powdery paints and preparation method thereof
CN114213937A (en) Zinc-rich powder coating and preparation method and application thereof
CN103897531A (en) Oil paint composition and surface coating method for window of mobile phone

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
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: One component coarse particle sealing strip coating and its preparation method

Effective date of registration: 20220616

Granted publication date: 20201023

Pledgee: The Bank of Shanghai branch Caohejing Limited by Share Ltd.

Pledgor: SHANGHAI 3N CHEMICALS Co.,Ltd.

Registration number: Y2022310000064

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20221111

Granted publication date: 20201023

Pledgee: The Bank of Shanghai branch Caohejing Limited by Share Ltd.

Pledgor: SHANGHAI 3N CHEMICALS Co.,Ltd.

Registration number: Y2022310000064

PC01 Cancellation of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A single component coarse particle sealing strip coating and its preparation method

Effective date of registration: 20231115

Granted publication date: 20201023

Pledgee: Postal Savings Bank of China Limited Shanghai Jinshan District Branch

Pledgor: SHANGHAI 3N CHEMICALS Co.,Ltd.

Registration number: Y2023310000747

PE01 Entry into force of the registration of the contract for pledge of patent right