CN110156974A - A kind of Heat Resistant Powder Coatings polyester resin - Google Patents
A kind of Heat Resistant Powder Coatings polyester resin Download PDFInfo
- Publication number
- CN110156974A CN110156974A CN201910374055.1A CN201910374055A CN110156974A CN 110156974 A CN110156974 A CN 110156974A CN 201910374055 A CN201910374055 A CN 201910374055A CN 110156974 A CN110156974 A CN 110156974A
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- Prior art keywords
- polyester resin
- parts
- heat resistant
- powder coatings
- resistant powder
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Classifications
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- 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
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy 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
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
-
- 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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/87—Non-metals or inter-compounds thereof
-
- 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
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C09D167/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
-
- 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
Abstract
The invention discloses a kind of Heat Resistant Powder Coatings polyester resin, with terephthalic acid (TPA), M-phthalic acid, cyclohexane cyclohexanedimethanodibasic and neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, three polyglycerols are as base-material, prepare polyester resin, during the preparation process, pass through catalyst Dibutyltin oxide or p-methyl benzenesulfonic acid, under the effect of the catalyst, improve the water solubility of polyester resin, reduce the use to organic solvent, improve environmental-protecting performance, polyester resin of the invention has suitable glass transition temperature and viscosity, the powdery paints of preparation has excellent heat resistance and mechanical performance and good water boiling resistance, high temperature resistance polyester resin is by using trimethylolpropane, and control its usage amount, so that polyester resin possesses high molecular weight and high reticular structure, it is suitble to promote the use of.
Description
Technical field
The present invention relates to a kind of polyester resin, in particular to a kind of Heat Resistant Powder Coatings polyester resin.
Background technique
Powdery paints is the solid powdery synthetic resin coating formed with hard resin and pigment, filler and auxiliary agent etc..
It is different with usual vehicle type coating and water paint, its decentralized medium not instead of solvent and water, air.It has solvent-free
The characteristics of pollution, 100% film forming, low energy consumption.Powdery paints has thermoplasticity and thermosetting property two major classes.The painting of thermoplastic powder coating
Film outward appearance (gloss and levelability) is poor, and the adhesive force between metal is also poor, so applied in painting dressing automobiles field seldom,
Painting dressing automobiles generally use thermosetting powder coating, thermosetting powder coating be using thermoset synthetic resin as film forming matter,
Resin first melts in drying course, then smooth hard film is solidified into after being chemically crosslinked.Outside the paint film that this kind of coating is formed
Sight and various mechanical performances and corrosion resistance are able to satisfy the requirement of automobile covering with paint.
Polyester resin powder coating has unique property, for example, due to polyester tree compared with other types powdery paints
Rouge has polar group, so powder utilization is higher than epoxy resin, yellowing is not easy in baking process, glossiness is high, good leveling property, paint
Film is plentiful, of light color etc..Polyester powder coating is largely used because of its excellent comprehensive performance, weather resistance and relatively low cost
In outdoor facilities such as building, automobile, traffic routes, at present the thermosetting powder coating of more than half be all using polyester resin as
Base-material preparation.
With the continuous renewal of the high speed development of social economy and technology in recent years, various new products are constantly introduced to the market,
A variety of different requirements are proposed to the performance of powdery paints, on this basis, the functions such as antimicrobial form, corrosion resistant type, heat resistant type
Property product exploitation and application be increasingly becoming the developing direction of powdery paints.In general, heat resistant powder coating refers to smearing energy
The high temperature of long-term 200 degrees Celsius of tolerance or more, disease keep good smearing mechanical performance, make protected substrate in hot environment
In normally play a role.
Polyester powder coating currently on the market carries out heat resistance the study found that most of coating is Celsius lower than 150
It can be used for a long time under conditions of degree, but higher than in 200 degrees Celsius of environment, coating shows apparent loss of gloss phenomenon, attached
Put forth effort decline, coating embrittlement, it is obvious turn yellow, flexibility lowers and dusting etc. destroys existing, so that coating is lost the protection to substrate
Effect.The high temperature resistance of existing polyester resin is not good enough, it is therefore necessary to research and develop a kind of Heat Resistant Powder Coatings polyester
Resin.
Summary of the invention
The present invention provides a kind of Heat Resistant Powder Coatings polyester resin.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of Heat Resistant Powder Coatings polyester resin of the present invention, the polyester resin includes the raw material of following mass parts: polynary
20-80 parts sour, 15-50 parts of polyalcohol, 10-30 parts of hydroxyethylation bisphenol-A, 40-70 parts of trimethylolpropane, trimethylolethane
30-60 parts, it is 1-4 parts of catalyst, 0.5-1.5 parts of promotor, powder 2-5 parts anti-oxidant.
As a preferred technical solution of the present invention, the polyester resin includes the raw material of following mass parts: polyacid
50 parts, 33 parts of polyalcohol, 20 parts of hydroxyethylation bisphenol-A, 55 parts of trimethylolpropane, 45 parts of trimethylolethane, catalyst 3
Part, 1 part of promotor, 3.5 parts of anti-oxidant powder.
As a preferred technical solution of the present invention, the polyacid is terephthalic acid (TPA), M-phthalic acid, hexamethylene
The mixture of one or more of dioctyl phthalate.
As a preferred technical solution of the present invention, the polyalcohol is neopentyl glycol, diethylene glycol, glycerine, two
The mixture of one or more of polyglycerol, three polyglycerols.
As a preferred technical solution of the present invention, the catalyst is Dibutyltin oxide or p-methyl benzenesulfonic acid.
As a preferred technical solution of the present invention, the promotor is boron trifluoride complex, metal organic salt, phosphine
One or more of mixtures of class compound.
As a preferred technical solution of the present invention, the anti-oxidant powder is tert-butyl hydroquinone, butylhydroxy fennel
One or more of fragrant ether and dibutyl hydroxy toluene.
As a preferred technical solution of the present invention, specific steps are as follows:
(1) reaction kettle is added in polyacid, polyalcohol, hydroxyethylation bisphenol-A, trimethylolpropane, trimethylolethane, it will be anti-
It answers kettle to increase the temperature to 90-120 DEG C, stirs 20-50min, be filled with nitrogen, catalyst is added, be warming up to 200-230 DEG C, reaction
1-3 hours；
(2) reaction temperature is increased to 240-260 DEG C, is stirred 30-60min, is reacted；
(3) temperature of reaction kettle is reduced to 160-190 DEG C, anti-oxidant powder and promotor is added, vacuumizes, make air pressure-
Between 0.05MPa to -0.1MPa, 60-80min is kept, Heat Resistant Powder Coatings polyester resin is obtained.
The beneficial effects obtained by the present invention are as follows being: a kind of Heat Resistant Powder Coatings polyester resin of the present invention, to benzene two
Formic acid, M-phthalic acid, cyclohexane cyclohexanedimethanodibasic and neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, three polyglycerols
As base-material, polyester resin is prepared, during the preparation process, by catalyst Dibutyltin oxide or p-methyl benzenesulfonic acid, is being urged
Under the action of agent, the water solubility of polyester resin is improved, reduces the use to organic solvent, improves environmental-protecting performance, the present invention
Polyester resin there is suitable glass transition temperature and viscosity, the powdery paints of preparation has excellent heat resistance and machinery
Performance and good water boiling resistance are toasted under the conditions of 270 degrees Celsius/6 hours or 300 degrees Celsius/1 hour, and coating is basic
Not loss of gloss, gloss retention rate with higher.High temperature resistance polyester resin controls its use by using trimethylolpropane
Amount, so that polyester resin possesses high molecular weight and high reticular structure；By controlling acid-alcohol ratio, the acid value range of finished product is controlled
Between 28-32, so that reducing TGIC dosage when polyester resin and curing agent solidification are crosslinked, it is suitble to promote.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of Heat Resistant Powder Coatings polyester resin of the present invention, the polyester resin includes the raw material of following mass parts: polynary
Sour 20 parts, 15 parts of polyalcohol, 10 parts of hydroxyethylation bisphenol-A, 40 parts of trimethylolpropane, 30 parts of trimethylolethane, catalyst 1
Part, 0.5 part of promotor, 2 parts of anti-oxidant powder.
The polyacid is the mixture of terephthalic acid (TPA), M-phthalic acid, cyclohexane cyclohexanedimethanodibasic.
The polyalcohol is neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, the mixture in three polyglycerols.
The catalyst is p-methyl benzenesulfonic acid.
The promotor is the mixture of boron trifluoride complex, metal organic salt, phosphine compound.
The anti-oxidant powder is tert-butyl hydroquinone and dibutyl hydroxy toluene.
Specific steps are as follows:
(1) reaction kettle is added in polyacid, polyalcohol, hydroxyethylation bisphenol-A, trimethylolpropane, trimethylolethane, it will be anti-
It answers kettle to increase the temperature to 90 DEG C, stirs 20min, be filled with nitrogen, catalyst is added, be warming up to 200 DEG C, react 1 hour；
(2) reaction temperature is increased to 240 DEG C, is stirred 30min, is reacted；
(3) temperature of reaction kettle is reduced to 160 DEG C, anti-oxidant powder and promotor is added, vacuumizes, makes air pressure in -0.05MPa
Between to -0.1MPa, 60min is kept, Heat Resistant Powder Coatings polyester resin is obtained.
Embodiment 2
A kind of Heat Resistant Powder Coatings polyester resin of the present invention, the polyester resin includes the raw material of following mass parts: polynary
Sour 50 parts, 33 parts of polyalcohol, 20 parts of hydroxyethylation bisphenol-A, 55 parts of trimethylolpropane, 45 parts of trimethylolethane, catalyst 3
Part, 1 part of promotor, 3.5 parts of anti-oxidant powder.
The polyacid is the mixture of terephthalic acid (TPA), M-phthalic acid, cyclohexane cyclohexanedimethanodibasic.
The polyalcohol is the mixture of neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, three polyglycerols.
The catalyst is Dibutyltin oxide.
The promotor is the mixture of boron trifluoride complex, metal organic salt, phosphine compound.
The anti-oxidant powder is tert-butyl hydroquinone, butylated hydroxy anisole and dibutyl hydroxy toluene.
Specific steps are as follows:
(1) reaction kettle is added in polyacid, polyalcohol, hydroxyethylation bisphenol-A, trimethylolpropane, trimethylolethane, it will be anti-
It answers kettle to increase the temperature to 110 DEG C, stirs 35min, be filled with nitrogen, catalyst is added, be warming up to 215 DEG C, react 1.5 hours；
(2) reaction temperature is increased to 250 DEG C, is stirred 45min, is reacted；
(3) temperature of reaction kettle is reduced to 170 DEG C, anti-oxidant powder and promotor is added, vacuumizes, makes air pressure in -0.05MPa
Between to -0.1MPa, 70min is kept, Heat Resistant Powder Coatings polyester resin is obtained.
Embodiment 3
A kind of Heat Resistant Powder Coatings polyester resin of the present invention, the polyester resin includes the raw material of following mass parts: polynary
Sour 80 parts, 50 parts of polyalcohol, 30 parts of hydroxyethylation bisphenol-A, 70 parts of trimethylolpropane, 60 parts of trimethylolethane, catalyst 4
Part, 1.5 parts of promotor, 5 parts of anti-oxidant powder.
The polyacid is the mixture of terephthalic acid (TPA), M-phthalic acid, cyclohexane cyclohexanedimethanodibasic.
The polyalcohol is neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, the mixture in three polyglycerols.
The catalyst is p-methyl benzenesulfonic acid.
The promotor is the mixture of boron trifluoride complex, metal organic salt, phosphine compound.
The anti-oxidant powder is tert-butyl hydroquinone, butylated hydroxy anisole and dibutyl hydroxy toluene.
Specific steps are as follows:
(1) reaction kettle is added in polyacid, polyalcohol, hydroxyethylation bisphenol-A, trimethylolpropane, trimethylolethane, it will be anti-
It answers kettle to increase the temperature to 90 DEG C, stirs 50min, be filled with nitrogen, catalyst is added, be warming up to 230 DEG C, react 3 hours；
(2) reaction temperature is increased to 240 DEG C, is stirred 30min, is reacted；
(3) temperature of reaction kettle is reduced to 190 DEG C, anti-oxidant powder and promotor is added, vacuumizes, makes air pressure in -0.05MPa
Between to -0.1MPa, 60min is kept, Heat Resistant Powder Coatings polyester resin is obtained.
Embodiment 4
A kind of Heat Resistant Powder Coatings polyester resin of the present invention, the polyester resin includes the raw material of following mass parts: polynary
Sour 80 parts, 15 parts of polyalcohol, 30 parts of hydroxyethylation bisphenol-A, 40 parts of trimethylolpropane, 60 parts of trimethylolethane, catalyst 1
Part, 1.5 parts of promotor, 5 parts of anti-oxidant powder.
The polyacid is the mixture of one or more of terephthalic acid (TPA), M-phthalic acid, cyclohexane cyclohexanedimethanodibasic.
The polyalcohol is the mixture of neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, three polyglycerols.
The catalyst is Dibutyltin oxide.
The promotor is the mixture of boron trifluoride complex, metal organic salt, phosphine compound.
The anti-oxidant powder is tert-butyl hydroquinone, butylated hydroxy anisole and dibutyl hydroxy toluene.
Specific steps are as follows:
(1) reaction kettle is added in polyacid, polyalcohol, hydroxyethylation bisphenol-A, trimethylolpropane, trimethylolethane, it will be anti-
It answers kettle to increase the temperature to 120 DEG C, stirs 50min, be filled with nitrogen, catalyst is added, be warming up to 200 DEG C, react 3 hours；
(2) reaction temperature is increased to 260 DEG C, is stirred 30min, is reacted；
(3) temperature of reaction kettle is reduced to 160 DEG C, anti-oxidant powder and promotor is added, vacuumizes, makes air pressure in -0.05MPa
Between to -0.1MPa, 60min is kept, Heat Resistant Powder Coatings polyester resin is obtained.
A kind of Heat Resistant Powder Coatings polyester resin of the present invention, with terephthalic acid (TPA), M-phthalic acid, hexamethylene diformazan
Acid and neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, three polyglycerols prepare polyester resin, are making as base-material
During standby, by catalyst Dibutyltin oxide or p-methyl benzenesulfonic acid, under the effect of the catalyst, polyester resin is improved
Water solubility, reduce use to organic solvent, improve environmental-protecting performance, polyester resin of the invention has suitable gamma transition
The powdery paints of temperature and viscosity, preparation has excellent heat resistance and mechanical performance and good water boiling resistance, 270
Degree Celsius/toasted under the conditions of 6 hours or 300 degrees Celsius/1 hour, coating not loss of gloss substantially, gloss retention rate with higher.
High temperature resistance polyester resin controls its usage amount by using trimethylolpropane, so that polyester resin possesses high molecular weight
And high reticular structure；By controlling acid-alcohol ratio, the acid value range of finished product is controlled between 28-32, so that polyester resin
When solidifying crosslinking with curing agent, TGIC dosage is reduced, is suitble to promote.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of Heat Resistant Powder Coatings polyester resin, which is characterized in that the polyester resin includes the original of following mass parts
Material: 20-80 parts of polyacid, 15-50 parts of polyalcohol, 10-30 parts of hydroxyethylation bisphenol-A, 40-70 parts of trimethylolpropane, three hydroxyls
It is 30-60 parts of methyl ethane, 1-4 parts of catalyst, 0.5-1.5 parts of promotor, powder 2-5 parts anti-oxidant.
2. a kind of Heat Resistant Powder Coatings polyester resin according to claim 1, which is characterized in that the polyester resin
Raw material including following mass parts: 50 parts of polyacid, 33 parts of polyalcohol, 20 parts of hydroxyethylation bisphenol-A, trimethylolpropane 55
Part, 45 parts of trimethylolethane, 3 parts of catalyst, 1 part of promotor, 3.5 parts of anti-oxidant powder.
3. a kind of Heat Resistant Powder Coatings polyester resin according to claim 1, which is characterized in that the polyacid is
The mixture of one or more of terephthalic acid (TPA), M-phthalic acid, cyclohexane cyclohexanedimethanodibasic.
4. a kind of Heat Resistant Powder Coatings polyester resin according to claim 1, which is characterized in that the polyalcohol is
The mixture of one or more of neopentyl glycol, diethylene glycol, glycerine, two polyglycerols, three polyglycerols.
5. a kind of Heat Resistant Powder Coatings polyester resin according to claim 1, which is characterized in that the catalyst is
Dibutyltin oxide or p-methyl benzenesulfonic acid.
6. a kind of Heat Resistant Powder Coatings polyester resin according to claim 1, which is characterized in that the promotor is
The mixtures of the one or more of boron trifluoride complex, metal organic salt, phosphine compound.
7. a kind of Heat Resistant Powder Coatings polyester resin according to claim 1, which is characterized in that the anti-oxidant powder
For one or more of tert-butyl hydroquinone, butylated hydroxy anisole and dibutyl hydroxy toluene.
8. a kind of preparation method of Heat Resistant Powder Coatings polyester resin described in -7 according to claim 1, which is characterized in that
Specific steps are as follows:
(1) reaction kettle is added in polyacid, polyalcohol, hydroxyethylation bisphenol-A, trimethylolpropane, trimethylolethane, it will be anti-
It answers kettle to increase the temperature to 90-120 DEG C, stirs 20-50min, be filled with nitrogen, catalyst is added, be warming up to 200-230 DEG C, reaction
1-3 hours；
(2) reaction temperature is increased to 240-260 DEG C, is stirred 30-60min, is reacted；
(3) temperature of reaction kettle is reduced to 160-190 DEG C, anti-oxidant powder and promotor is added, vacuumizes, make air pressure-
Between 0.05MPa to -0.1MPa, 60-80min is kept, Heat Resistant Powder Coatings polyester resin is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374055.1A CN110156974A (en) | 2019-05-07 | 2019-05-07 | A kind of Heat Resistant Powder Coatings polyester resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910374055.1A CN110156974A (en) | 2019-05-07 | 2019-05-07 | A kind of Heat Resistant Powder Coatings polyester resin |
Publications (1)
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| CN110156974A true CN110156974A (en) | 2019-08-23 |
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ID=67633604
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| CN201910374055.1A Pending CN110156974A (en) | 2019-05-07 | 2019-05-07 | A kind of Heat Resistant Powder Coatings polyester resin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999378A (en) * | 2021-12-20 | 2022-02-01 | 黄山正杰新材料有限公司 | Low-cost polyester resin with excellent heat transfer printing effect for powder coating and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396537A (en) * | 2013-07-17 | 2013-11-20 | 芜湖艾力特新材料科技有限公司 | Preparation method of high temperature yellowing resistant thermosetting polyester resin |
| CN103739831A (en) * | 2014-01-16 | 2014-04-23 | 帝兴树脂(昆山)有限公司 | Preparation method of polyester resin for high temperature resistant powder coating and high temperature resistant powder coating |
| CN106750209A (en) * | 2016-12-12 | 2017-05-31 | 衡阳山泰化工有限公司 | A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof |
-
2019
- 2019-05-07 CN CN201910374055.1A patent/CN110156974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396537A (en) * | 2013-07-17 | 2013-11-20 | 芜湖艾力特新材料科技有限公司 | Preparation method of high temperature yellowing resistant thermosetting polyester resin |
| CN103739831A (en) * | 2014-01-16 | 2014-04-23 | 帝兴树脂(昆山)有限公司 | Preparation method of polyester resin for high temperature resistant powder coating and high temperature resistant powder coating |
| CN106750209A (en) * | 2016-12-12 | 2017-05-31 | 衡阳山泰化工有限公司 | A kind of Heat Resistant Powder Coatings polyester resin and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113999378A (en) * | 2021-12-20 | 2022-02-01 | 黄山正杰新材料有限公司 | Low-cost polyester resin with excellent heat transfer printing effect for powder coating and preparation method thereof |
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Application publication date: 20190823 |