CN106397753B - A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof - Google Patents
A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof Download PDFInfo
- Publication number
- CN106397753B CN106397753B CN201610792940.8A CN201610792940A CN106397753B CN 106397753 B CN106397753 B CN 106397753B CN 201610792940 A CN201610792940 A CN 201610792940A CN 106397753 B CN106397753 B CN 106397753B
- Authority
- CN
- China
- Prior art keywords
- polyester resin
- parts
- acid
- perfluoropolyether
- polyalcohol
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/682—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens
- C08G63/6824—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens derived from polycarboxylic acids and polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/682—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens
- C08G63/6824—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6828—Polycarboxylic acids and polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
-
- 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
- C09D5/03—Powdery paints
-
- 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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
Abstract
The present invention relates to a kind of Heat Resistant Powder Coatings polyester resin, the polyester resin is mainly polymerized by the component of following parts by weight：20 60 parts of terminal hydroxy group perfluoropolyether, 30 70 parts of polyacid, 10 50 parts of polyalcohol, 15 parts of phosphate derivative, 5 15 parts of end-capping reagent, 0.05 0.3 parts of esterification catalyst；The polyester resin acid value is 65~75mgKOH/g, and glass transition temperature is 55~65 DEG C, and melt viscosity is 1500~5500mPa.s (200 DEG C), and the molar ratio of hydroxyl and carboxyl is 0.80 0.95 in raw material:1.Polyester resin disclosed by the invention can under 160 180 DEG C of low temperature preferably film-forming, reduce the use cost of perfluoropolyether resin, improve the adhesive force and stability of resin.
Description
Technical field
The present invention relates to a kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof.
Background technology
Since last century the seventies come out, powdery paints is because it is without organic solvent, and 100% is solid constituent, phase
Than conventional coating, have it is pollution-free, save the energy and resource, coating machinery intensity are high and that excess coating material can recycle completely etc. is excellent
Point is just applied to the painting of the shells such as household electrical appliance, auto industry, office accommodation, metal material, outdoor building more and more widely
Dress.Heat resistance powdery paints refers to be subjected to 200 DEG C or more of temperature for a long time, and film is good, and can make protection object in height
The powdery paints normally to play a role in warm environment.It is analyzed from polymer architecture, the heat resistance of polymer depends primarily on its point
Minor structure.For polyester resin since its backbone structure is based on C-O keys, heat resistance is poor, is used under conditions of certain high temperature
Easy aging afterwards, the powdery paints of support after high-temperature baking coating have dusting, obscission, therefore special at some
The polyester powder coat material needs used under environment, which are modified, carrys out lifter heat resistance.
Perfluoropolyether (PFPE) has the characteristics such as heat-resisting, anti-oxidant, radioresistance, corrosion-resistant, non-ignitable, in Material Field
To being widely applied.It is widely used, obtained using the coating of the preparations such as PFPE- polyurethane, PFPE- polyester, PFPE- epoxy resin
Good effect.Self-cleaning paint is such as made, for skyscraper and bridge spanning the sea, still has protection and dress using 10~20a
Decorations act on；For marine petroleum exploitation platform and drilling equipment, durability reaches more than 10a.E.I.Du Pont Company is once by PFPE fluoro coatings
For aluminum curtain walls, coating shows high stability, excellent weatherability and superior stain resistant in photo-oxidation process
Property, easily wipe or cleaned by rainwater.PFPE fluororesin can be made into high solid coating, not only have outdoor resistance to well
Hou Xing, wearability and chemical resistance, while meet environmental requirement, therefore the research of PFPE fluoro coatings causes people great
Concern.The powdery paints being modified using perfluoropolyether has also had a large amount of research, but uses perfluoropolyether-modified poly-
Ester powder is added in powdery paints, the adhesive force of coating can be greatly reduced, and its solidification temperature can be substantially increased.
Current common perfluoropolyether-modified polyester powder coating is required for higher temperature in curing, generally 200
DEG C or so.Excessively high solidification temperature does not only result in it in engineering plastics, timber and metal alloy compositions field using being limited
System, and the consumption of the energy is increased, while also affect production efficiency.Therefore, exploitation at low temperature (140-160 DEG C) with regard to energy
Abundant cured perfluoropolyether-modified polyester powder coating system, can not only be greatly decreased energy consumption and waste, Er Qieke
Greatly to widen its application field, there are boundless market prospects.
CN102010501A discloses a kind of polyester resin for beta-hydroxyalkylamide low temperature curing weather-resistant powder paint, by
Component including following weight percent content is obtained through melt polycondensation reaction：Polyalcohol 25~45%, aromatic polycarboxylic acid 40~
55%th, aliphatic polyol acid 0~8%, branching agent 0~5%, acidolysis agent 5~15%, esterification catalyst 0.01~0.15%.It is described
Polyester resin has relatively low solidification temperature, preferable flow leveling, mechanical performance and good anti-thick film pin hole.
CN103396537A discloses a kind of resisting high-temperature yellowing polyester thermosetting resin preparation method.This method introduces molecule
The more complicated cyclohexane dimethanol of structure and cyclohexane dioctyl phthalate improve the thermal stability of polymer, while using novel more
First hindered phenol type antioxidant and phosphite-type antioxidant are used in combination, and percentage of the antioxidant in resin is 0.3~1%.Institute
The plate face levelling and satisfactory mechanical property of the powdery paints of preparation, particularly resisting high-temperature yellowing are had excellent performance, and are toasted at 300 DEG C
Its value of chromatism (Δ Ε ＜ 1.0) is detected after 2 hours.
Invention content
The present invention improves the prior art, and specifically, exactly polyester resin is added in during preparation
Terminal hydroxy group perfluoropolyether is to further improve the physical property of coating, while in order to overcome terminal hydroxy group perfluoropolyether in reaction system
In dispersion degree it is bad the problem of, add in phosphate derivative, make terminal hydroxy group perfluoropolyether and polyalcohol in esterification process into
Row combined crosswise improves the stability of product.Applicant is found surprisingly that, terminal hydroxy group perfluor is added in high acid value polyester resin
For polyethers with polyalcohol collectively as esterification feed, the solidification temperature of obtained mixed polyester is significantly less than terminal hydroxy group perfluoropolyether list
Solely it is esterified obtained polyester product；Further, since the addition of phosphate derivative, which is avoided in esterification process, there is dispersion unevenness
It is even and the problem of influence product stability.Obtained polyester resin product chemistry stability is high, relative to terminal hydroxy group perfluoropolyether
The problem of resin ester reduces solidification temperature, and the adhesive force for also overcoming polyester resin coating is bad achieves expectation not
The technique effect arrived.
A kind of Heat Resistant Powder Coatings polyester resin, the polyester resin mainly by the component of following parts by weight polymerize and
Into：20-60 parts of terminal hydroxy group perfluoropolyether, 30-70 parts of polyacid, 10-50 parts of polyalcohol, 1-5 parts of phosphate derivative, end-capping reagent
5-15 parts, 0.05-0.3 parts of esterification catalyst；The polyester resin acid value is 65~75mgKOH/g, and glass transition temperature is
55~65 DEG C, melt viscosity is 1500~5500mPa.s (200 DEG C), and the molar ratio of hydroxyl and carboxyl is 0.80- in raw material
0.95:1。
Wherein described polyalcohol is one in neopentyl glycol, hexylene glycol, glycerine 5-10%, trimethylolethane, glucose
Kind is a variety of, and preferably described polyalcohol includes following components, neopentyl glycol 20-55mol%, hexylene glycol 20-35mol%, glycerine
5-10%, trimethylolethane 5-25mol%, glucose 5-10mol%.
The polyacid is M-phthalic acid, terephthalic acid (TPA), succinic anhydride, adipic acid, pyromellitic acid anhydride, Malaysia
It is one or more in pimaric acid；It is preferred that the polyacid includes following components, M-phthalic acid 20-45mol%, terephthaldehyde
Sour 15-35mol%, succinic anhydride 15-30mol%, adipic acid 15-35mol%, pyromellitic acid anhydride 5-10mol%, Malaysia
Pimaric acid 5-15%.
The end-capping reagent is one or more in trimellitic anhydride, phthalic anhydride, maleopimaric acid, adipic acid.
The esterification catalyst is tin oxalate, dibutyl tin laurate or butyl titanate.
The preparation method of the polyester resin includes the following steps：By terminal hydroxy group perfluoropolyether, polyalcohol, polyacid, urge
The reactants such as agent are all added in reaction kettle, are gradually warming up to 180-220 DEG C of dehydration esterification, Ran Housheng under nitrogen protection
Temperature to 240-260 DEG C continuation dehydration esterification.When reactant pH value is down to below 9, decompression is lower, and the reaction was continued and removes low boiling point
Object.When temperature of charge is down to 180-190 DEG C, adds in end-capping reagent and react 1~1.5h, polyester resin is made.
Wherein described terminal hydroxy group perfluoropolyether and the molar ratio of polyalcohol are 0.2-3:1, preferably 1-2:1.
The phosphate derivative is phosphate ester surfactant.
On the other hand, the present invention also provides a kind of powdery paints for having used above-mentioned polyester resin.Except above-mentioned polyester tree
Except fat, powdery paints further include curing agent, curing accelerator, levelling agent, texture agent, degasser, antioxidant, pigment and its
Its filler etc..Wherein, curing agent can be beta-hydroxy alkylamide and triglycidyl isocyanurate TGIC.Curing accelerator
It can be the addition compound product of isophorone diisocyanate and imidazoles.Levelling agent can be the polyacrylate with hydroxyl and carboxyl
Copolymer.Texture agent can be fluoropolymer.Degasser can be modified micronizing wax.Antioxidant can be hexichol first
Ketone compounds or benzoin compound.Pigment can be titanium dioxide, carbon black, iron oxide red, iron oxide yellow, ultramarine etc..Its
Its filler is also filler usually used in this field.The content of various composition is well-known to those skilled in the art.
Compared with prior art, Heat Resistant Powder Coatings of the invention are had the advantages that with polyester resin：
(1) can under 160-180 DEG C of low temperature preferably film-forming, reduce the use cost of perfluoropolyether resin,
The adhesive force and stability of resin are improved, not only reduces consumption and waste to the energy, and has widened its application significantly
Field, can to metal etc. can heat-resisting base material spray, the thermal sensitivity material such as timber or plastics can also be sprayed；
(2) good leveling property of powdery paints and film-forming is excellent, disclosure satisfy that industrial-scale production requirement.
Specific embodiment
The technical solution of invention is described in detail with reference to specific embodiment.
Embodiment 1
The preparation method of perfluoropolyether-modified polyester resin includes the following steps：By terminal hydroxy group perfluoropolyether, polyalcohol, more
First acid, esterification catalyst, end-capping reagent, phosphate derivative are added in reaction kettle, are gradually warming up to 180- under nitrogen protection
220 DEG C of dehydration esterifications then heat to 240-260 DEG C of continuation dehydration esterification.When reactant pH value is down to below 9, under decompression
The reaction was continued and removes low boilers.When temperature of charge is down to 180-190 DEG C, adds in end-capping reagent and react 1~1.5h, system
Obtain perfluoropolyether-modified polyester resin.Terminal hydroxy group perfluoropolyether and the molar ratio of polyalcohol are 3-5:1.
After polyester resin is mixed with curing agent, curing accelerator, levelling agent, texture agent, degasser, antioxidant, pigment
It is put into high-speed mixer and is sufficiently mixed uniformly, then feed the mixture into screw extruder and fully melt and be kneaded, so
Extrusion, tabletting, crushing afterwards, obtain powdery paints.
Comparative example 1
The preparation method of polyester resin of the present invention includes the following steps：By terminal hydroxy group perfluoropolyether, polyacid, esterification
Catalyst, end-capping reagent, phosphate derivative are added in reaction kettle, are gradually warming up to 180-220 DEG C of dehydration under nitrogen protection
Esterification then heats to 240-260 DEG C of continuation dehydration esterification.When reactant pH value is down to below 9, the reaction was continued under decompression simultaneously
Remove low boilers.When temperature of charge is down to 180-190 DEG C, adds in end-capping reagent and react 1~1.5h, institute of the present invention is made
State polyester resin.
After polyester resin is mixed with curing agent, curing accelerator, levelling agent, texture agent, degasser, antioxidant, pigment
It is put into high-speed mixer and is sufficiently mixed uniformly, then feed the mixture into screw extruder and fully melt and be kneaded, so
Extrusion, tabletting, crushing afterwards, obtain powdery paints.
Comparative example 2
The preparation method of normal polyester resin includes the following steps：By polyacid, esterification catalyst, end-capping reagent, phosphate
Derivative is added in reaction kettle, is gradually warming up to 180-220 DEG C of dehydration esterification under nitrogen protection, is then heated to 240-
260 DEG C of continuation dehydration esterifications.When reactant pH value is down to below 9, decompression is lower, and the reaction was continued and removes low boilers.It is reacting
When object temperature is down to 180-190 DEG C, adds in end-capping reagent and react 1~1.5h, normal polyester resin is made.
Normal polyester resin is mixed with curing agent, curing accelerator, levelling agent, texture agent, degasser, antioxidant, pigment
It is put into high-speed mixer and is sufficiently mixed uniformly after conjunction, then feed the mixture into screw extruder and fully melt and mix
Refining, then extrusion, tabletting, crushing, obtain powdery paints.
Comparative example 3
The preparation method for being not added with the perfluoropolyether-modified polyester resin of phosphate derivative includes the following steps：By end hydroxyl
Base perfluoropolyether, polyacid, esterification catalyst, end-capping reagent, phosphate derivative are added in reaction kettle, under nitrogen protection by
Step is warming up to 180-220 DEG C of dehydration esterification, then heats to 240-260 DEG C of continuation dehydration esterification.When reactant pH value be down to 9 with
When lower, decompression is lower, and the reaction was continued and removes low boilers.When temperature of charge is down to 180-190 DEG C, addition end-capping reagent is simultaneously anti-
1~1.5h is answered, perfluoropolyether resin is made.
Be not added with the perfluoropolyether-modified polyester resin of phosphate derivative, with curing agent, curing accelerator, levelling agent,
It is put into high-speed mixer and is sufficiently mixed uniformly after texture agent, degasser, antioxidant, pigment mixing, then add mixture
Enter in screw extruder and fully melt and be kneaded, then extrusion, tabletting, crushing, obtain powdery paints.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.The present invention's
All embodiments can only all be considered the description of the invention rather than limitation, and every technique according to the invention content is made
Any trickle amendment or equivalent replacement gone out, belongs within technical scheme of the present invention.
Claims (10)
1. a kind of Heat Resistant Powder Coatings polyester resin, it is characterised in that the polyester resin is mainly by the group of following parts by weight
Divide and be polymerized：20-60 parts of terminal hydroxy group perfluoropolyether, 30-70 parts of polyacid, 10-50 parts of polyalcohol, phosphate derivative 1-5
Part, 5-15 parts of end-capping reagent, 0.05-0.3 parts of esterification catalyst；The polyester resin acid value is 65~75mgKOH/g, and vitrifying turns
Temperature is 55~65 DEG C, and at 200 DEG C, melt viscosity is 1500~5500mPas, the molar ratio of hydroxyl and carboxyl in raw material
For 0.80-0.95:1；The phosphate derivative is phosphate ester surfactant.
2. polyester resin as described in claim 1, it is characterised in that the polyacid be M-phthalic acid, terephthalic acid (TPA),
It is one or more in succinic anhydride, adipic acid, pyromellitic acid anhydride, maleopimaric acid.
3. polyester resin as claimed in claim 2, it is characterised in that the polyacid includes following components, M-phthalic acid
20-45mol%, terephthalic acid (TPA) 15-35mol%, succinic anhydride 15-30mol%, adipic acid 15-35mol%, equal benzene tetramethyl
Acid dianhydride 5-10mol%, maleopimaric acid 5-15%.
4. polyester resin as described in claim 1, it is characterised in that the end-capping reagent is trimellitic anhydride, phthalic acid
It is one or more in acid anhydride, maleopimaric acid, adipic acid.
5. polyester resin as described in claim 1, it is characterised in that the esterification catalyst is tin oxalate, two fourth of tin dilaurate
Base tin or butyl titanate.
6. polyester resin as described in claim 1, it is characterised in that in addition to polyester resin, further include curing agent, curing promotees
Into agent, levelling agent, texture agent, degasser, antioxidant, pigment and filler.
7. such as the preparation method of claim 1-6 any one of them polyester resin, include the following steps：Terminal hydroxy group perfluor is gathered
Ether, polyalcohol, polyacid, esterification catalyst, phosphate derivative are all added in reaction kettle, are gradually risen under nitrogen protection
Temperature then heats to 240-260 DEG C of continuation dehydration esterification to 180-220 DEG C of dehydration esterification；When reactant pH value is down to less than 9
When, decompression is lower, and the reaction was continued and removes low boilers；When temperature of charge is down to 180-190 DEG C, end-capping reagent and reaction 1 are added in
The polyester resin is made in~1.5h.
8. the method for claim 7, it is characterised in that wherein described terminal hydroxy group perfluoropolyether and the molar ratio of polyalcohol
It is 0.2-3:1..
9. method as claimed in claim 8, it is characterised in that wherein described terminal hydroxy group perfluoropolyether and the molar ratio of polyalcohol
It is 1-2:1.
10. a kind of purposes that any one of the claim 1-6 polyester resin is used to manufacture to powdery paints, it is characterised in that：
By dosage than heterogeneity be put into high-speed mixer be sufficiently mixed uniformly, then feed the mixture into screw extruder and fill
Divide and melt and be kneaded, then extrusion, tabletting, crushing obtains the powdery paints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792940.8A CN106397753B (en) | 2016-08-31 | 2016-08-31 | A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792940.8A CN106397753B (en) | 2016-08-31 | 2016-08-31 | A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106397753A CN106397753A (en) | 2017-02-15 |
| CN106397753B true CN106397753B (en) | 2018-06-29 |
Family
ID=58001859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610792940.8A Active CN106397753B (en) | 2016-08-31 | 2016-08-31 | A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106397753B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108250916A (en) * | 2017-12-29 | 2018-07-06 | 安徽鑫发铝业有限公司 | A kind of aluminum section for automobile process of surface treatment |
| CN113527988B (en) * | 2021-08-12 | 2022-08-16 | 杭州瑞辰塑业有限公司 | Self-cleaning powder coating for household appliances and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416819B1 (en) * | 2000-06-30 | 2002-07-09 | Nex Press Solutions Llc | Method of preparing low-temperature-cure polymer composition |
-
2016
- 2016-08-31 CN CN201610792940.8A patent/CN106397753B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416819B1 (en) * | 2000-06-30 | 2002-07-09 | Nex Press Solutions Llc | Method of preparing low-temperature-cure polymer composition |
Non-Patent Citations (1)
| Title |
|---|
| "全氟聚醚改性聚酯粉末涂料的研究";李站铁等;《上海涂料》;20140130;第52卷(第1期);第6-8页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106397753A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103131308B (en) | A kind of be superly weather-proofly dry mixed extinction powder coating just acid number bicomponent terminal carboxyl polyester resin composition and application thereof | |
| CN104530408B (en) | Extra-weather-proof polyester resin for powder coating, the powdery paints using this resin and preparation method thereof | |
| CN106243937B (en) | A kind of dry-mixed extinction type powdery paints with good low temperature curing performance and preparation method thereof | |
| CN105254860B (en) | A kind of Constructional Machinery polyester resin for powder coating and preparation method thereof | |
| CN101735431B (en) | Weather resistant polyester resin with excellent water-boiling resisting performance and method for preparing same | |
| CN109280468B (en) | Organic silicon modified polyester resin for super-weather-resistant powder coating and preparation method thereof | |
| CN104448265B (en) | Thermal transfer polyester resin for powder coating that a kind of low-temperature setting is energy-saving and preparation method thereof | |
| CN104910659B (en) | A kind of weatherability modified polyester resin powdery paints | |
| CN104497289B (en) | Low temperature curing type vibrin used for powder coating, the powder coating using this resin and preparation method thereof | |
| CN106543420A (en) | High TGIC type polyester resin for powder coating of a kind of water boiling resistance color fastness and preparation method thereof | |
| KR102374055B1 (en) | Powder paint for home appliance coil material and its manufacturing method | |
| CN105273581B (en) | A kind of high IR rapid curing coil powdery paints and preparation method thereof | |
| CN106397753B (en) | A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof | |
| CN106752940B (en) | A kind of high glaze, impact resistance and extra-weather-proof fluorine-containing polyester resin of powdery paints carboxyl end group and preparation method thereof | |
| CN109306232A (en) | A kind of effective powder coating polyester resin of automobile exhausting and preparation method thereof | |
| CN1635038A (en) | Method for preparing novel F level high speed polyurethane enamelled wire paint | |
| CN107200833B (en) | A kind of epoxy resin cure precoating Polyester resin for anticorrosive powder paint and preparation method thereof | |
| CN106750222A (en) | A kind of extra-weather-proof fluorine-containing polyester resin of end carboxyl used for powder coating and preparation method thereof | |
| CN103289543B (en) | A kind of automobile finish powder coating | |
| CN112341915A (en) | Weather-resistant powder coating and preparation method thereof | |
| CN109401550A (en) | 50/50 low temperature curing type polyester resin, preparation method and application | |
| CN1635039A (en) | Method for preparing novel B level high speed polyurethane enamelled wire paint | |
| CN114106304A (en) | Low-temperature curing weather-resistant polyester resin, low-temperature curing weather-resistant powder coating and preparation method | |
| CN110305569B (en) | Polyester resin based on phenyl succinic anhydride and preparation method thereof | |
| CN103289544B (en) | A kind of automobile finish powder coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Ronghui Inventor after: Jiang Rong Inventor after: Bi Haipeng Inventor after: Wang Yonglei Inventor after: Sun Chengqiang Inventor before: Zheng Ronghui Inventor before: Bao Guanliang Inventor before: Wang Yonglei Inventor before: Sun Chengqiang |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |