CN106800878A - A kind of plastic sheeting and its coating of oil-stain-preventing selfreparing - Google Patents
A kind of plastic sheeting and its coating of oil-stain-preventing selfreparing Download PDFInfo
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- CN106800878A CN106800878A CN201611255922.2A CN201611255922A CN106800878A CN 106800878 A CN106800878 A CN 106800878A CN 201611255922 A CN201611255922 A CN 201611255922A CN 106800878 A CN106800878 A CN 106800878A
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- Prior art keywords
- stain
- oil
- preventing
- plastic sheeting
- selfreparing
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Classifications
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- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
-
- 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
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- 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)
- Laminated Bodies (AREA)
Abstract
The invention provides a kind of plastic sheeting of oil-stain-preventing selfreparing, it includes plastic sheeting matrix and the oil-stain-preventing reconditioning layer being formed on plastic sheeting matrix；Wherein, the oil-stain-preventing reconditioning layer is formed by being heating and curing by the oil-stain-preventing self-healing coatings being coated on plastic sheeting matrix；Oil-stain-preventing self-healing coatings are including polyalcohol, PIC, fluorine auxiliary agent etc..The plastic sheeting of oil-stain-preventing selfreparing of the invention, problem can not be recovered after efficiently solving cured film product self-inflicted injury, while having oil-stain-preventing effect concurrently, be effectively prevented from outer bound pair product and produced stain.
Description
Technical field
The present invention relates to a kind of oil-stain-preventing selfreparing plastic sheeting and be coated on heated solid on plastic sheeting matrix
Change can form the coating of oil-stain-preventing reconditioning layer.
Background technology
At present, the optical component of the liquid crystal display such as mobile phone, computer, the function PET film of decoration technique inside mold, automobile table
The films such as surface protective film, are all the plastic sheetings for having carried out stiffened treatment.Because the plastic sheeting after stiffened treatment, there is higher
Hardness and wearability, so that plastic sheeting can resist the wiping of outside, scratch.But, outside active force exceedes hardening
Scuffing and breakage can be produced after the limit that layer is born, itself cannot be recovered.Therefore, the presence of self-repair function can make modeling
Material film is avoided damage to, and effectively substitutes cured film.
Chinese patent application 02127555.6 disclose it is a kind of have prevent reflection function, so-called absorb near red while having
The optical correction function and the also excellent optical thin film of productivity ratio of outside line and tint correction.The characteristics of this optical thin film, exists
In have be made up of the photo-curable resin with self-repairability transparent resin layer, be present in that the transparent resin layer is unilateral to be prevented
Reflecting layer and be present in the transparent resin layer this prevent reflecting layer opposite side contain the color with color tone correcting property
The color tone correcting layer of element.
Chinese patent 200610041692.X discloses a kind of restorative procedure of plasma display screen heat pressing badness, and it first will
The UV cured UV resins/silica gel being bonded between plasma panel and TCP/COF tears；Then side is blown with heat gun
Tear TCP/COF for TCP/COF and screen heated pressure section side, the temperature control of heat gun at 120 DEG C-180 DEG C, away from heated pressure section 2-
3CM；Then another side heat gun blow Anisotropically conductive film ACF with screen heated pressure section, temperature control at 120 DEG C -180 DEG C, away from heat
2-3CM of laminate section, while scraping off Anisotropically conductive film ACF with printed circuit board, cleans silver electrode, and check whether electrode damages；
Under the non-degree of impairment of silver electrode, by plasma display screen heat pressing machine again hot pressing.The method increase the success of hot pressing reparation
Rate, can protect Plasmia indicating panel silver electrode.
At present, the plastic sheeting product for being capable of selfreparing is there is no in the prior art.
In addition, these products of mobile phone, computer, automobile are easier to be stained with stain by being contacted with people, external environment, and
And at present in self-repair material without there is oil-stain-preventing effect, oil-stain-preventing function is added on selfreparing plastic sheeting, it is more prone to
Stain is wiped, the cleanliness factor on surface is maintained.
The content of the invention
In order to solve the above problems, being capable of oil-stain-preventing selfreparing plastic sheeting and use it is an object of the invention to provide one kind
In the oil-stain-preventing self-healing coatings that oil-stain-preventing self-repairing control is formed on plastic sheeting matrix.
On the one hand, in order to realize above-mentioned purpose, the invention provides a kind of plastic sheeting of oil-stain-preventing selfreparing, its bag
Include plastic sheeting matrix and the oil-stain-preventing reconditioning layer being formed on plastic sheeting matrix；Wherein, the oil-stain-preventing reconditioning layer is
Formed by being heating and curing by the oil-stain-preventing self-healing coatings being coated on plastic sheeting matrix；The oil-stain-preventing selfreparing
Coating includes following component:
Polyalcohol 50-80 parts
PIC 20-60 parts
8-13 parts of fluorine auxiliary agent.
Above-mentioned oil-stain-preventing self-healing coatings further comprise solvent and other a small amount of functional aids.
In the plastic sheeting of oil-stain-preventing selfreparing of the invention, the plastic sheeting matrix that it is used is preferably by thermoplasticity
What polymer was formed, the thermoplastic polymer is selected from PET, polybutylene terephthalate (PBT), poly- naphthalene
Naphthalate, makrolon, polymethyl methacrylate, cellulose triacetate, polypropylene, thermoplastic polyurethane elastic
At least one in body rubber.This plastic sheeting matrix can be film matrix that is non-stretched, being stretched uniaxially or biaxially.
It is highly preferred that the thermoplastic polymer is selected from polyethylene terephthalate thin film, polycarbonate film, thermoplastic
At least one in property polyurethane elastomer rubber film and polymethyl methacrylate film.
In the plastic sheeting of oil-stain-preventing selfreparing of the invention, NCO/OH in the polyalcohol and PIC that are used
It is preferably controlled in the range of 0.9-1.5.
Preferably, in the plastic sheeting of oil-stain-preventing selfreparing of the invention, the polyalcohol for being used is PEPA
Or PPG, such as acrylic acid series multiple alcohol (such as acryl polyol)；It is 100- more preferably using hydroxyl value
The PEPA or PPG of 300mgKOH/g；It is the polyester of 100-300mgKOH/g further preferably to use hydroxyl value
Polyalcohol.
In the plastic sheeting of oil-stain-preventing selfreparing of the invention, it is different that the PIC for being used is preferably aliphatic poly
Cyanate or aliphatic polymeric isocyanate modified body, more preferably aliphatic polymeric isocyanate modified body, more preferably have
Machine Si modification aliphatic polymeric isocyanate.
In the plastic sheeting of oil-stain-preventing selfreparing of the invention, the fluorine auxiliary agent for being used is preferably PFPE auxiliary agent,
More preferably end is by the PFPE auxiliary agent of hydroxyl modification.
In the present invention, the thickness of oil-stain-preventing coatings is preferably 5-50 microns, more preferably 15-25 microns.
On the other hand, to realize goal of the invention of the invention, plastic sheeting matrix to be used for present invention also offers one kind
Oil-stain-preventing self-healing coatings, the oil-stain-preventing self-healing coatings through being heating and curing can be formed on the plastic sheeting matrix prevent
Greasy dirt reconditioning layer, the oil-stain-preventing self-healing coatings include following component:
Above-mentioned oil-stain-preventing self-healing coatings can further include some a small amount of functional aids.
Preferably, in oil-stain-preventing self-healing coatings of the invention, NCO/ in the polyalcohol and PIC that are used
OH is preferably controlled in the range of 0.9-1.5.
It is further preferred that in oil-stain-preventing self-healing coatings of the invention, the polyalcohol for being used is PEPA
Or PPG, the PIC for being used is aliphatic polymeric isocyanate or aliphatic polymeric isocyanate modified body,
The fluorine auxiliary agent for being used is PFPE auxiliary agent.
Another further aspect, present invention also offers the production method of the plastic sheeting for preparing oil-stain-preventing selfreparing.In the present invention
The method that the mode of being heating and curing manufactures oil-stain-preventing self-repairing control, including following operation：Heat curing-type is coated with plastic sheeting matrix
Oil-stain-preventing self-healing coatings, oil-stain-preventing coatings are again by being heating and curing operation and maturation operation obtains oil-stain-preventing selfreparing
Plastic sheeting.
In the present invention, above-mentioned coating method can use nick rubbing method, slot coated method, Mayer rod coatings method, roller coat
Method, scraper for coating method etc.；It is preferred that using slot coated method.
It is coated on plastic sheeting matrix by oil-stain-preventing self-healing coatings of the invention, is formed by the mode of being heating and curing
Oil-stain-preventing reconditioning layer, the plastic sheeting so as to oil-stain-preventing selfreparing is obtained, after efficiently solving cured film product self-inflicted injury
Problem can not be recovered, while having oil-stain-preventing effect concurrently, outer bound pair product is effectively prevented from and is produced stain.
Below, with reference to the drawings and specific embodiments, the present invention is further illustrated, but these specific embodiments
Simply to the explanation of some specific specific embodiments of the invention, it is not limited to the present invention.Guarantor of the invention
Shield scope is defined by the scope described in claims.
Brief description of the drawings
Fig. 1 is the production oil-stain-preventing self-repairing control production process figure that is heating and curing.
Specific embodiment
Embodiment 1
The oil-stain-preventing self-healing coatings that are heating and curing of the present embodiment, count by weight, including following component：
Preparation method：By 50 parts of ltalester 353 (Italian Galstaff), 70 parts of butyl esters, 3 parts of DAC-HP (great Jin
Fluorination work) 0.5h is mixed, then add 21 parts of N-75 (Bayer), mix 15min.
Oil-stain-preventing self-repairing control preparation method：According to Fig. 1 production processes, from PET film, predrying temperature control
In 120-150 DEG C, drying time, in 5min, 20 microns of oil-stain-preventing self-repairing controls of thickness of dry film is obtained according to this condition.
Embodiment 2
The oil-stain-preventing self-healing coatings that are heating and curing of the present embodiment, count by weight, and it includes following component：
Preparation method：By 60 parts of PLACCEL 308 (DAICEL Co., Ltd.), 100 parts of butyl esters, 3 parts of DAC-HP (great Jin fluorine
Chemical industry) 0.5h is mixed, then add 39 parts of TAKENATE 170 (Mitsui Chemicals), mix 15min.
Embodiment 3
The oil-stain-preventing self-healing coatings that are heating and curing of the present embodiment, count by weight, including following component：
Preparation method：By 75 parts of ltalester 353 (Italian Galstaff), 100 parts of butyl esters, 9 parts of DAC-HP (great Jin
Fluorination work) 1.0h is mixed, then add 21 parts of N-75 (Bayer), mix 20min.
Oil-stain-preventing self-repairing control preparation method：According to Fig. 1 production processes, from PET film, predrying temperature control
In 120-150 DEG C, drying time, in 5min, 30 microns of oil-stain-preventing self-repairing controls of thickness of dry film is obtained according to this condition.
Embodiment 4
The oil-stain-preventing self-healing coatings that are heating and curing of the present embodiment, count by weight, and it includes following component：
Preparation method：By 60 parts of PLACCEL 308 (DAICEL Co., Ltd.), 110 parts of butyl esters, 12 parts of DAC-HP (great Jin
Fluorination work) 0.8h is mixed, then add 59 parts of TAKENATE 170 (Mitsui Chemicals), mix 18min.
Survey its performance and be shown in Table 1.
Table 1
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Self-repairability | Can repair automatically | Can repair automatically | Can repair automatically | Can repair automatically |
| The selfreparing time | 20s | 4s | 18s | 3s |
| Adhesive force | 0 grade | 0 grade | 0 grade | 0 grade |
| Pierce through hardness | 3H | 4H | 3H | 4H |
| Oil-stain-preventing | ◎ | ○ | ◎ | ◎ |
A, self-repairability：21cm*30cm testing samples are taken, brass wire brush (brass wire diameter is used under heavy burden 750g power
0.076mm, copper wire 1.9cm long, copper wire area 9cm*5cm) carry out test and reciprocate 10 times, can observation crackle be repaiied automatically
It is multiple.
B, selfreparing time：The time required to being scratched to reparation completely from coating.
C, adhesive force：Tested by GB/T 9286-1998.
D, puncture hardness：Tested by GB/T6739-2006, pencil hardness is scratched when can not repair automatically with coating as coating
Hardness.
E, oil-stain-preventing：Oil pen slides a circle of diameter 1cm on film surface, is wiped with non-woven fabrics, and viewing wipes effect
Really.
" ◎ " is represented and easily wiped
"○" represents erasable
"×" represents not erasable.
Claims (10)
1. a kind of plastic sheeting of oil-stain-preventing selfreparing, it includes plastic sheeting matrix and is formed in anti-on plastic sheeting matrix
Greasy dirt reconditioning layer；Wherein, the oil-stain-preventing reconditioning layer is reviewed one's lessons by oneself by the oil-stain-preventing being coated on the plastic sheeting matrix
Overcoating material is by being heating and curing and being formed；Described oil-stain-preventing self-healing coatings include following component:
Polyalcohol 50-80 parts
PIC 20-60 parts
2-13 parts of fluorine auxiliary agent.
2. the plastic sheeting of oil-stain-preventing selfreparing as claimed in claim 1, wherein, described plastic sheeting matrix is by thermoplastic
Property polymer formed, the thermoplastic polymer selected from PET, polybutylene terephthalate (PBT),
PEN, makrolon, polymethyl methacrylate, cellulose triacetate, polypropylene, thermoplastic polyurethane
At least one in elastomer rubber.
3. the plastic sheeting of oil-stain-preventing selfreparing as claimed in claim 2, wherein, the thermoplastic polymer is selected from poly- right
Polyethylene terephthalate film, polycarbonate film, TPUE rubber film and polymethyl methacrylate
At least one in film.
4. the plastic sheeting of oil-stain-preventing selfreparing as claimed in claim 1, wherein, in described polyalcohol and PIC
NCO/OH is controlled in the range of 0.9-1.5.
5. the plastic sheeting of oil-stain-preventing selfreparing as claimed in claim 1, wherein, described polyalcohol for PEPA or
Person's PPG, preferably hydroxyl value are the PEPA or PPG of 100-300mgKOH/g.
6. the plastic sheeting of oil-stain-preventing selfreparing as claimed in claim 1, wherein, described PIC is aliphatic poly
Isocyanates or aliphatic polymeric isocyanate modified body, preferably aliphatic polymeric isocyanate modified body, more preferably organosilicon change
Property aliphatic polymeric isocyanate.
7. the plastic sheeting of the oil-stain-preventing selfreparing as described in one of claim 1-6, wherein, described fluorine auxiliary agent is poly- for perfluor
Ether auxiliary agent, preferably end are by the PFPE auxiliary agent of hydroxyl modification.
8. a kind of oil-stain-preventing self-healing coatings on plastic sheeting matrix, the oil-stain-preventing self-healing coatings are by being heating and curing
Oil-stain-preventing reconditioning layer can be formed on the plastic sheeting matrix, wherein, described oil-stain-preventing self-healing coatings include as follows
Component:
9. oil-stain-preventing self-healing coatings as claimed in claim 8, wherein, NCO/OH in described polyalcohol and PIC
Control is in the range of 0.9-1.5.
10. oil-stain-preventing self-healing coatings as claimed in claim 8 or 9, wherein, described polyalcohol for PEPA or
PPG, described PIC is aliphatic polymeric isocyanate or aliphatic polymeric isocyanate modified body, described
Fluorine auxiliary agent is PFPE auxiliary agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255922.2A CN106800878A (en) | 2016-12-30 | 2016-12-30 | A kind of plastic sheeting and its coating of oil-stain-preventing selfreparing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611255922.2A CN106800878A (en) | 2016-12-30 | 2016-12-30 | A kind of plastic sheeting and its coating of oil-stain-preventing selfreparing |
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| CN106800878A true CN106800878A (en) | 2017-06-06 |
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| CN201611255922.2A Pending CN106800878A (en) | 2016-12-30 | 2016-12-30 | A kind of plastic sheeting and its coating of oil-stain-preventing selfreparing |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271450A (en) * | 2017-06-20 | 2017-10-20 | 深圳市华星光电技术有限公司 | A kind of detection method of polyamide/silicon nitride film compactness |
| CN108084861A (en) * | 2017-12-29 | 2018-05-29 | 常州山由帝杉防护材料制造有限公司 | Selfreparing oil-stain-preventing coating and preparation method thereof, protecting film comprising the coating and preparation method thereof |
| CN108148489A (en) * | 2017-12-05 | 2018-06-12 | 杏晖光学（厦门）有限公司 | A kind of oil rub resistance self-healing coatings and preparation method thereof, application |
| CN108641574A (en) * | 2018-05-09 | 2018-10-12 | 欧利生东邦涂料（东莞）有限公司 | A kind of recoverability acrylic acid high-gloss paint |
| CN109181520A (en) * | 2018-09-05 | 2019-01-11 | 纳琳威纳米科技南通有限公司 | A kind of hot repair overcoating material and preparation method thereof with shape memory function |
| CN109321118A (en) * | 2018-09-30 | 2019-02-12 | 无锡卡秀堡辉涂料有限公司 | A kind of high durable can repair the coating of coating and its preparation |
| CN109868073A (en) * | 2018-12-11 | 2019-06-11 | 浙江世窗光学薄膜制造有限公司 | A kind of film and preparation method thereof that changes colour with self-repair function |
| CN109897367A (en) * | 2018-11-07 | 2019-06-18 | 桐城市鸿江包装有限公司 | Dust-proof bottle cover material and preparation method thereof |
| CN109912802A (en) * | 2017-12-13 | 2019-06-21 | 上海飞凯光电材料股份有限公司 | A kind of fluorine silicon resin, preparation method, coatings |
| US11708469B2 (en) | 2020-12-07 | 2023-07-25 | Saint-Gobain Performance Plastics Corporation | Composite film and methods of forming a composite film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104903102A (en) * | 2013-01-09 | 2015-09-09 | 东丽株式会社 | Laminated film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104903102A (en) * | 2013-01-09 | 2015-09-09 | 东丽株式会社 | Laminated film |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271450A (en) * | 2017-06-20 | 2017-10-20 | 深圳市华星光电技术有限公司 | A kind of detection method of polyamide/silicon nitride film compactness |
| CN108148489A (en) * | 2017-12-05 | 2018-06-12 | 杏晖光学（厦门）有限公司 | A kind of oil rub resistance self-healing coatings and preparation method thereof, application |
| CN109912802A (en) * | 2017-12-13 | 2019-06-21 | 上海飞凯光电材料股份有限公司 | A kind of fluorine silicon resin, preparation method, coatings |
| CN109912802B (en) * | 2017-12-13 | 2021-10-08 | 上海飞凯材料科技股份有限公司 | Fluorosilicone resin, preparation method and self-repairing coating |
| CN108084861A (en) * | 2017-12-29 | 2018-05-29 | 常州山由帝杉防护材料制造有限公司 | Selfreparing oil-stain-preventing coating and preparation method thereof, protecting film comprising the coating and preparation method thereof |
| CN108084861B (en) * | 2017-12-29 | 2023-08-04 | 常州山由帝杉防护材料制造有限公司 | Self-repairing oil stain-proof coating and preparation method thereof, protective film containing coating and preparation method thereof |
| CN108641574A (en) * | 2018-05-09 | 2018-10-12 | 欧利生东邦涂料（东莞）有限公司 | A kind of recoverability acrylic acid high-gloss paint |
| CN109181520A (en) * | 2018-09-05 | 2019-01-11 | 纳琳威纳米科技南通有限公司 | A kind of hot repair overcoating material and preparation method thereof with shape memory function |
| CN109321118A (en) * | 2018-09-30 | 2019-02-12 | 无锡卡秀堡辉涂料有限公司 | A kind of high durable can repair the coating of coating and its preparation |
| CN109897367A (en) * | 2018-11-07 | 2019-06-18 | 桐城市鸿江包装有限公司 | Dust-proof bottle cover material and preparation method thereof |
| CN109868073A (en) * | 2018-12-11 | 2019-06-11 | 浙江世窗光学薄膜制造有限公司 | A kind of film and preparation method thereof that changes colour with self-repair function |
| US11708469B2 (en) | 2020-12-07 | 2023-07-25 | Saint-Gobain Performance Plastics Corporation | Composite film and methods of forming a composite film |
| US12043715B2 (en) | 2020-12-07 | 2024-07-23 | Saint-Gobain Performance Plastics Corporation | Composite film and methods of forming a composite film |
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