CN1035516C - Components and preparing process of low-temp quick-drying amino baking paint - Google Patents
Components and preparing process of low-temp quick-drying amino baking paint Download PDFInfo
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- CN1035516C CN1035516C CN 91100826 CN91100826A CN1035516C CN 1035516 C CN1035516 C CN 1035516C CN 91100826 CN91100826 CN 91100826 CN 91100826 A CN91100826 A CN 91100826A CN 1035516 C CN1035516 C CN 1035516C
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- oil
- synolac
- amine baking
- baking varnish
- described amine
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Abstract
The present invention relates to components of amino baking paint which is quickly dried at low temperature and a preparation process thereof. The paint is prepared by adding pigment, a solvent and additives to isobutyl alcohol etherified tripolycyanamide-formaldehyde resin and alkyd resin of ultra-short oily degree, wherein the alkyd resin of ultra-short oily degree mainly comprises refined soybean oil, phthalic dimethyl acid anhydride, glycerol, salicylic acid, gallic acid, yellow lead, etc. The baking paint can be solidified after being baked for 45 minutes, and a film of the paint can have the hardness at least 0.5 and the glossiness greater than 90%. The baking paint is widely applied to the industrial fields, such as household appliances, light-industrial products, automotive industry, etc.
Description
The present invention relates to a kind of by aminoresin, Synolac and pigment, solvent, the formulated low-temperature quick-dry amine baking varnish of auxiliary agent.
It is formulated that amine baking varnish of the prior art adds pigment, solvent and auxiliary agent by aminoresin, Synolac, and preparation amine baking varnish aminoresin wherein has a kind of isopropylcarbinol etherify melamine-formaldehyde resin that is.Include in the alkyd resin material component wherein: Tetra hydro Phthalic anhydride, refined soybean oil, yellow lead and glycerine, refined soybean oil can use dry vegetable oil, semi-drying vegetables oil or non-drying vegetables oil to substitute.Because the paint film of amine baking varnish has higher ornamental and protectiveness characteristics, has been widely used in fields such as household electrical appliance, light industrial goods and automotive industry.But this kind amine baking varnish generally need dry by the fire 1.5-2 hour under 120 ℃ of hot conditionss, the ability drying and forming-film, its curing speed is slow, power consumption is high, thereby can not satisfy the needs of industrial development, for storing temperature and the storing time that reduces amine baking varnish, be engaged in the technician of this research work for a long time, carry out the work from different technological lines, for example: add strong acid catalyst, the strong acid catalyst of hiding, oxidation-heat cross-linking mixed catalyst, the metal chelate linking agent, the isocyanate crosslinking of diving, hyperergy Synolac, materials such as high reaction aminoresin, all, storing temperature and time are descended to some extent, but they generally still need to toast the long period under 100 ℃ of-150 ℃ of temperature in varying degrees.
Purpose of the present invention is intended to propose a kind of paint film low-temperature quick-dry amine baking varnish of baking-curing at a lower temperature, to overcome aforementioned weak point of the prior art.
The object of the present invention is achieved like this:
The low-temperature quick-dry amine baking varnish is 2-7 by the tolerance of the etherify melamine-formaldehyde resin of isopropylcarbinol in the present invention that isopropylcarbinol etherify melamine-formaldehyde resin, short oil-ity alcohol acid resin, pigment, solvent, auxiliary agent are formed, and viscosity is 50-70 second (25 ± 1 ℃ are coated with-4 agar diffusion methods); Short oil-ity alcohol acid resin is made up of Tetra hydro Phthalic anhydride, Whitfield's ointment, gallic acid, refined soybean oil, yellow lead and glycerine, and refined soybean oil can use dry vegetable oil, semi-drying vegetables oil or non-drying vegetables oil to substitute, solvent wherein is dimethylbenzene or substitutes with the collocation of heavy aromatics, carbon eight fractions that auxiliary agent wherein is that silicone oil, catalyzer are lithium hydroxide, naphthenate, 2-ethylhexoate.Short oil-ity alcohol acid resin control oil content is 30-34%, and pure excess is 10-15%, and acid number is less than or equal to 16mg KOH/g, and viscosity is 3.5-4.5 second (25 ± 1 ℃ of Ge Shi pipe methods).Solid resin content is 50 ± 1%.In amine baking varnish of the present invention, the proportioning of Synolac and aminoresin is 3.5-4.5 by weight: 1.The preparation of amine baking varnish is that Synolac and pigment, auxiliary agent are mixed, and when reaching below 20 microns through grinding fineness of dispersion, adds aminoresin, adjusts then about viscosity to 60 second (25 ± 1 ℃ are coated with-4 agar diffusion methods).
Below in conjunction with embodiment technical characterictic of the present invention is further narrated.
Employed low degree of etherification isopropylcarbinol etherify melamine-formaldehyde resin is the 585-1 type that Dongguang Special Paints General Factory, Tianjin City produces among the present invention, and its tolerance is 2-7, and viscosity is 50-70 second (25 ± 1 ℃ are coated with-4 agar diffusion methods), and structural formula is:
Experiment showed, in the extra short oil Synolac to add Tetra hydro Phthalic anhydride that the equivalence ratio of Whitfield's ointment, gallic acid is 100-110: 10: during 0-1, have ideal effect.
Consisting of of Synolac: (weight part)
Refined soybean oil 135.22-190.86,
Glycerine 103.34-119.45,
Tetra hydro Phthalic anhydride 204.02-224.42,
Whitfield's ointment 38.09,
Gallic acid 0-5.19,
Yellow lead 0.6,
Silicone oil 0.003,
Dimethylbenzene 506.00.
Make the glycerine of extra short oil Synolac and can use TriMethylolPropane(TMP), or trimethylolethane, or tetramethylolmethane and glycol ether are alternative.
For economy; The dimethylbenzene part in the resin comes from backflow; And a part adds for dissolved dilution.In for example above-mentioned 506.00 parts of dimethylbenzene; 32.90 parts are backflow dimethylbenzene, and 474.00 parts is latting drown dimethylbenzene.：1 ( ) ： 154.70 117.83 224.42 38.09 5.76 0.06 0.003 ( ) 32.00 ( ) 474.002 ( ) 174.70 119.83 228.50 41.90 2.30 0.06 0.003 ( ) 32.00 ( ) 474.003 ( ) 170.53 114.62 228.50 40.20 1.15 0.06 0.003 ( ) 32.00 ( ) 474.004 ( ) ： 163.06 123.69 246.42 46.00 0.06 0.003 ( ) 31.00 ( ) 468.005 ( ) ： 156.62 121.04 235.35 41.90 1.10 0.06 0.003 ( ) 32.00 ( ) 474.006 ( ) ： 169.40 124.64 240.40 40.20 4.11 0.06 0.003 ( ) 32.00 ( ) 474.007 ) ： 169.40 170.19 240.40 40.20 4.11 0.06 0.003 ( ) 32.00 ( ) 474.008 ) ： 154.70 156.52 235.35 41.90 1.10 0.06 0.003 ( ) 32.00 ( ) 474.009 ) ： 154.70 88.66 69.11 228.5 33.09 5.76 0.06 0.003
Dimethylbenzene (backflow) 32.00
Dimethylbenzene (latting drown) 474.00
The preparation of Synolac can be undertaken by following processing step:
(1) will stir in vegetables oil and the polyvalent alcohol input reactor, and feed inert gas, add yellow lead when being warming up to 120 ℃, continue to be warming up to 220 ℃ again.
(2) keep alcoholysis, sampling is 5 with 95% ethanol examination tolerance, and it is qualified to be alcoholysis.
(3) be cooled to below 200 ℃, drop into Tetra hydro Phthalic anhydride, Whitfield's ointment, gallic acid, silicone oil, stop to feed inert gas then, add backflow dimethylbenzene again.
(4) be warming up to 190-220 ℃ and keep esterification, the sampling viscosimetric: get 1: 1 dimethylbenzene latting drown, surveying its viscosity with 25 ± 1 ℃ of Ge Shi pipe methods is 3.5-4.5 second, and acid number is less than or equal to 16mg KOH/g, is the esterification terminal point.
(5) be cooled to below 150 ℃ and add latting drown dimethylbenzene, being diluted to solid part is 50 ± 1%, and purification makes fineness and is less than or equal to 20 microns qualified Synolac after filtration.
When the preparation colored paint, earlier with mixing and stirring such as extra short oil Synolac, pigment, auxiliary agents.Grind to disperse fineness is reached below 20 microns, add isopropylcarbinol etherify melamine-formaldehyde resin, auxiliary agent again, adjust about viscosity to 60 second (25 ± 1 ℃ are coated with-4 agar diffusion methods) with solvent at last.The colored paint composition is exemplified below:
Example 10 (weight part):
Synolac (50% content) 160.00
Aminoresin (50% content) 45.00
Medium chrome yellow medium yellow 20.20
Chinese blue 1.20
Titanium dioxide 10.50
Silicone oil (1% content) 1.20 examples 11 (weight part):
Synolac (50% content) 160.00
Aminoresin (50% content) 40.00
Middle colour carbon black 5.40
Silicone oil (1% content) 1.20
The present invention is by in the extra short oil Synolac; introducing has Whitfield's ointment, the gallic acid component of selecting absorptive function to far infrared rays; make functional group have higher activity and higher concentration; thereby it is low to make amine baking varnish have a drying temperature, the characteristic that the time is short, and promptly baking 45 minutes is just curable down at 80 ℃; its hardness of paint film can be more than or equal to 0.5; glossiness can be used on the Industrial products that protectiveness is had relatively high expectations various ornamental more than or equal to 90%.
Claims (6)
1, a kind of low-temperature quick-dry amine baking varnish, by isopropylcarbinol etherify melamine-formaldehyde resin, extra short oil Synolac, pigment, solvent, auxiliary agent are formed, and the tolerance of described isopropylcarbinol etherify melamine-formaldehyde resin is 2-7, and viscosity is 50-70 second (25 ± 1 ℃ are coated with-4 agar diffusion methods); Described extra short oil Synolac is made up of Tetra hydro Phthalic anhydride, Whitfield's ointment, gallic acid, refined soybean oil, yellow lead and glycerine, wherein refined soybean oil can use dry vegetable oil, semi-drying vegetables oil or non-drying vegetables oil to substitute, the oil content of Synolac is 30-34%, the alcohol excess is 10-15%, acid number is less than or equal to 16mg KOH/g, viscosity is 3.5-4.5 second (25 ± 1 ℃ of Ge Shi pipe methods), solid resin content is 50 ± 1%, and the proportioning of Synolac and aminoresin is 3.5-4.5 in the described amine baking varnish: 1 (weight part).
According to the described amine baking varnish of claim 1, it is characterized in that 2, adding Tetra hydro Phthalic anhydride, Whitfield's ointment in the extra short oil Synolac composition of raw materials, not having the equivalence ratio of gallate-based is 100-110: 10: 0-1.
According to claim 1 or 2 described amine baking varnishs, it is characterized in that 3, the composition of extra short oil Synolac (weight part) is:
Refined soybean oil 135.22-190.86,
Glycerine 103.34-119.45,
Tetra hydro Phthalic anhydride 204.02-224.42,
Whitfield's ointment 38.09,
Gallic acid 0-5.19
Yellow lead 0.6,
Silicone oil 0.003,
Dimethylbenzene 506.00.
According to the described amine baking varnish of claim 3, it is characterized in that 4, the composition of extra short oil Synolac (weight part) is:
Refined soybean oil 170.53,
Glycerine 114.62,
Tetra hydro Phthalic anhydride 228.50,
Whitfield's ointment 40.20,
Gallic acid 1.15,
Yellow lead 0.06,
Silicone oil 0.003,
Dimethylbenzene 506.00
According to claim 3 or 4 described amine baking varnishs, it is characterized in that 5, the glycerine during the extra short oil Synolac is formed can use Pehanorm, or trimethylolethane, or tetramethylolmethane and glycol ether are alternative.
According to the described amine baking varnish of claim 3, it is characterized in that 6, described amine baking varnish is a pea green, its composition (weight part) is:
Synolac (50% content) 160.00,
Aminoresin (50% content) 45.00,
Medium chrome yellow medium yellow 20.20,
Chinese blue 1.20,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91100826 CN1035516C (en) | 1991-02-12 | 1991-02-12 | Components and preparing process of low-temp quick-drying amino baking paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91100826 CN1035516C (en) | 1991-02-12 | 1991-02-12 | Components and preparing process of low-temp quick-drying amino baking paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064092A CN1064092A (en) | 1992-09-02 |
| CN1035516C true CN1035516C (en) | 1997-07-30 |
Family
ID=4904845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91100826 Expired - Fee Related CN1035516C (en) | 1991-02-12 | 1991-02-12 | Components and preparing process of low-temp quick-drying amino baking paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035516C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707597A1 (en) * | 2005-03-30 | 2006-10-04 | Rohm and Haas Company | Low bake melamine cured coating compositions |
| CN101705052B (en) * | 2009-07-03 | 2011-10-05 | 长春华日涂料有限公司 | Single-component baking water automobile paint |
| CN101993624B (en) * | 2009-08-13 | 2015-11-25 | 东莞丽利涂料有限公司 | Filled compositions and comprise the goods of filled compositions |
| CN101942268B (en) * | 2010-06-21 | 2012-12-12 | 北京展辰化工有限公司 | Thixotropic soybean oil paint and preparation method thereof |
| CN102775891A (en) * | 2012-07-10 | 2012-11-14 | 江苏天辅星光学材料有限公司 | Low-temperature-cured amino coating |
| CN104031541A (en) * | 2014-06-27 | 2014-09-10 | 袁卫林 | Amino drying static varnish |
| CN105273588A (en) * | 2014-06-29 | 2016-01-27 | 江苏飞翔涂料实业总公司 | Thermosetting coating used for exterior decorative part of bicycle |
| CN104530940A (en) * | 2015-01-15 | 2015-04-22 | 徐强 | Waterborne amino baking enamel and preparation method thereof |
-
1991
- 1991-02-12 CN CN 91100826 patent/CN1035516C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1064092A (en) | 1992-09-02 |
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