CN100383170C - Production of urea-isobutyl aldehyde-formolite copolymerization resin - Google Patents
Production of urea-isobutyl aldehyde-formolite copolymerization resin Download PDFInfo
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Abstract
The present invention relates to a preparation method for urea-isobutyraldehyde-formaldehyde copolymerized resin as a paint additive. The present invention comprises the following steps: adding urea to isobutyraldehyde, adding catalysts drop by drop until a pH value reaches 2 to 4, and stirring mixtures for 2 to 8h at 40 to 90 DEG C; sequentially adding formaldehyde, the isobutyraldehyde and the catalysts until the pH value reaches 1 to 3 and stirring mixtures for 2 to 8h at 40 to 90 DEG C; adding organic solvents, keeping mixtures stand after stir to form delamination, and removing aqueous phases in a lower layer; washing reaction products by deionized water at the temperature of 40 to 80 DEG C; adopting vacuum evaporation to remove small molecule substances to obtain urea-isobutyraldehyde-formaldehyde copolymerized resin. The prepared resin has the advantages of good solubility with solvents and low solution viscosity, and can effectively improve the yellowing resistance, adhesive force, luster and hardness of paint / printing ink.
Description
Technical field
The present invention relates to coating/ink addition agent technical field, more particularly, relate to a kind of preparation method who is used as the urea-isobutyl aldehyde-formolite copolymerization resin of coating/ink addition agent.
Background technology
Coating/ink addition agent is the class important composition material in coating/ink product, although their consumptions in coating/printing ink are little, but play very crucial effect to improving and improve the performance that coating/printing ink films, therefore more and more be subjected to people in the industry's attention, in some product even arrived the degree that be unable to do without them.Present a lot of coating/printing ink factory commercial city is one after another technical knowhow and the know-how of the application of auxiliary agent in the prescription as our company's product.The application level of coating/ink addition agent has become one of sign of measurement coating/printing ink production technology level.
The sticking power that coating/printing ink is filmed, yellowing resistance, hardness, fullness ratio, gloss all is the important indicator of weighing coating/printing ink film performance, the auxiliary agent that generally is used for improving this class index be contain carbonyl in the molecular structure, end group is a base polymer of hydroxyl, its softening temperature is about the 80-120 degree; Because the existence of carbonyl makes it have good consistency in this base polymer; Terminal hydroxy group can strengthen the avidity of itself and face, filler and polar substrates, and film performance is improved, and hydroxyl has activity it can the subparticipation film forming be solidified, and improves the endurance quality of filming; Therefore this base polymer is subjected to people's generally attention as the multifunctional assistant of coating/printing ink.
Using at present more is cyclohexanone-formaldehyde resin, and it is that polycondensation forms under the katalysis of alkali contains carbonyl, end group is the polymkeric substance of hydroxyl for pimelinketone and formaldehyde.This resin has the consistency good with other resin, when in coating, printing ink, using, can effectively improve performances such as its gloss, sticking power, hardness, be exactly this resinoid as the product of the method preparation of Chinese patent CN1397574A " a kind of production method of the cyclohexanone-formaldehyde resin " invention of applications such as the Chinese patent CN1281867A " a kind of manufacture method of ketone resin " of applications such as Lin Yang and Hu Xuewu.Use other ketone in addition, as substituted cyclohexanone (3,3, the 5-trimethylcyclohexanone), methyl phenyl ketone, 4-tertiary butyl pimelinketone etc. react the ketone resin that obtains with formaldehyde, the intermiscibility of itself and solvent is better than cyclohexanone-formaldehyde resin, as Healtech S. A. at Chinese patents CN1112571A " ketone resin that intermiscibility is wide, its preparation method and use described resin ".But this resinoid is owing to its molecular structure, and in storage and use, xanthochromia has limited its range of application gradually.
The aminoresin lighter color, yellowing resistance can be excellent, and traditional aminoresin uses in coating very long history, and its synthetic method is with containing amino compound, as obtaining aminoresin through etherificate again behind urea, trimeric cyanamide and the formaldehyde reaction.And butyraldehyde is compared with formaldehyde, and a lot of differences are arranged on physicochemical property, substitutes or the part instead of formaldehyde is come synthetic polymer with butyraldehyde or isobutyric aldehyde, and the product that obtains has different performances.Reported that isobutyric aldehyde and phenol are under acid catalysis among the US Patent 4395535 " Process for the manufacture ofphenol-isobutyraldehyde condensation products " as applications such as the US Patent4276209 " Co-condensates based on phenol-butyraldehyde resins; their preparation and theiruse " of application such as Petersen and Nieberle, prepare thermoplastic resin product, this product can be as hot melt adhesive with as the non-woven cementation agent, the US Patent 4102840 " Process for the manufacture of Urea HCHO Isobutyraldehydecondensation products and compositions thereof " of Pusch application has reported a kind of isobutyric aldehyde of using, a kind of polymkeric substance that the copolycondensation under acidic conditions of urea and formaldehyde forms, this polymkeric substance can be used as the crease-proofing textiles containing agent after handling through etherificate.
The urea-isobutyl aldehyde-formolite resin of preparation method's preparation that the present invention describes is a kind of non-etherificate, oil soluble aminoresin, and its weather-resistant property, yellowing resistance can be good.It is the resin product that obtains copolymerization with urea, isobutyric aldehyde and formaldehyde under the effect of catalyzer, and end group is a hydroxyl, in the resinous molecular structure, contains amido and carbonyl, can effectively improve ADHESION OF PAINTS power, yellowing resistance, hardness, gloss etc.; In addition, its color of resin is shallow, and is good with the consistency of various resins and solvent, therefore will obtain using very widely in coating/printing ink industry.Not only can be used as the colorant dispersion agent of coating/printing ink, can also increase sticking power, gloss and the hardness of coating, printing ink, improve the weather resistance and the yellowing resistance energy of coating/printing ink effectively, in coating/printing ink industry, bigger market outlook be arranged.
In addition, isobutyric aldehyde is that propylene is through the by product of oxo process fourth, octanol in the large-scale ethene associating chemical plant installations, and a domestic cover throughput is 300,000 tons/year ethene associating chemical plant installations, but every year about 10,000 tons of by-product isobutyric aldehydes.2005, the annual production of China's ethene broke through 6,000,000 tons, and isobutyric aldehyde output reaches more than 200,000 tons.And isobutyric aldehyde but can not access good utilization as a kind of byproduct of petrochemical complex, works as refuse in the past and burns; In recent years, although there are a lot of researchists carrying out number of research projects aspect the derived product of exploitation isobutyric aldehyde, the complex process that has is difficult for industrialization, and the value added that has is low, and exploitation has little significance.And utilize isobutyric aldehyde to synthesize the urea-isobutyl aldehyde-formolite resin, and not only obtained rosin products than high additive value, satisfy the demand of coating/printing ink industry to auxiliary agent, also found better approach for the increment of isobutyric aldehyde.
Summary of the invention
The objective of the invention is to provides a kind of preparation method of coating multifunctional assistant urea-isobutyl aldehyde-formolite copolymerization resin at being used for coating/printing ink general color paste at present, improving the problem that the resin of the performance of coating/printing ink exists.The resin for preparing is a kind of non-etherificate, oil soluble solid aminoresin.This resin has good weathering resistance, yellowing resistance, and color of resin is shallow, and is good with other coating resin compatibility performance.Can be used as manufacturing coating/printing ink general color paste, can also be used to improving the quick-drying of coating/printing ink, improve liquidity, effectively improve the amount of solid content of coating/printing ink, improve the sticking power of filming, hardness, fullness ratio, performances such as gloss.
The preparation method of urea-isobutyl aldehyde-formolite copolymerization resin of the present invention comprises: with urea with after isobutyric aldehyde mixes, in the presence of catalyzer, urea and isobutyric aldehyde addition reaction, add formaldehyde then, isobutyric aldehyde carries out polyreaction, use the solvent extraction resin, the evaporation separation obtains product; Described catalyzer comprises sulfuric acid, phosphoric acid, acetate, tosic acid, Witco 1298 Soft Acid or their mixture; Described solvent comprises: sherwood oil, toluene, dimethylbenzene, N-BUTYL ACETATE, pimelinketone or their mixture.
The preparation method of urea-isobutyl aldehyde-formolite copolymerization resin of the present invention comprises the following steps:
(1) urea is joined in the isobutyric aldehyde, drip catalyzer gradually, reach 2-4 to pH value, stir 2-8h down at 40-90 ℃;
(2) add formaldehyde successively, isobutyric aldehyde adds catalyzer again, reaches 1-3 to pH value, stirs 2-8h down at 40-90 ℃;
(3) add organic solvent, stir the back standing demix, remove lower floor's water:
(4) be under 40-80 ℃ in temperature, wash with deionized water;
(5) small-molecule substance is removed in vacuum-evaporation, obtains the urea-isobutyl aldehyde-formolite copolymerization resin product:
The mass fraction of above-mentioned raw materials is composed as follows:
Urea 15-30
Isobutyric aldehyde 80-160
Formaldehyde 60-100
Organic solvent 120-200
Catalyzer 4-50;
The catalyzer that adopts is made up of sulfuric acid, phosphoric acid, acetate, tosic acid, Witco 1298 Soft Acid, water, and its mass parts is composed as follows:
Sulfuric acid 10-60
Phosphoric acid 0-20
Tosic acid 0-10
Acetate 0-10
Witco 1298 Soft Acid 0-10
Water 30-80.
The organic solvent that adopts can be the general organic solvent in this area, one or more mixtures in the preferred sherwood oil of the present invention, dimethylbenzene, toluene, N-BUTYL ACETATE, the pimelinketone, and its mass fraction is composed as follows:
Sherwood oil 0-200
Dimethylbenzene 0-300
Toluene 0-250
N-BUTYL ACETATE 0-100
Pimelinketone 0-100
Above-mentioned organic solvent mass fraction is at least a not to be 0.
The urea-isobutyl aldehyde-formolite copolymerization resin that the inventive method is prepared, of light color, yellowing resistance can be good, when being used for coating/printing ink, can effectively improve the sticking power of coating/printing ink, glossiness, hardness and dryness; Because itself and solvent phase dissolubility are good, soltion viscosity is low, and is good with most coating resin compatibility performances, is particularly suitable as the grind resin of coating/printing ink general color paste, is a kind of multi-functional coating/ink addition agent.
The present invention compared with prior art has following advantage:
(1) the raw materials used wide material sources of the present invention, cost is low, and the resin of preparation is widely used in coating/printing ink industry, has higher value added;
(2) preparation technology of the present invention is simple, the preparation condition gentleness, and condition is easy to control, and technological operation elasticity is big, can comparatively fast realize industrialization;
(3) resin yield height of the present invention easily by adjusting proportioning raw materials and processing condition, is prepared the different urea-isobutyl aldehyde-formolite copolymerization resin of performance, to satisfy the needs of different purposes;
(4) to prepare the resin solvent intermiscibility of gained good in the present invention, and soltion viscosity is low, can effectively improve the amount of solid content in coating/printing ink, reduces the VOC content in coating/printing ink;
(5) resin of the present invention's preparation contains polar group in the molecule, and is good with the consistency of various coating/ink resins, anti-xanthochromia, and color of resin is shallow, is the ideal material of preparation general color paste;
(6) resin of the present invention's preparation can effectively improve the sticking power of coating/printing ink, improves hardness, gloss and the dryness of filming, and can improve the fullness ratio of filming, and is a kind of multi-functional coating/ink addition agent.
Embodiment
Embodiment 1
(1) catalyzer
In 50 gram deionized waters, add 50 gram sulfuric acid, 10 gram phosphoric acid, 2 gram Witco 1298 Soft Acids, it is standby to stir.
(2) organic solvent
With 100 gram sherwood oils, 100 gram dimethylbenzene mix standby.
(3) preparation of resin
25 gram ureas and 70 gram isobutyric aldehydes are put in the 500ml four-hole boiling flask, constantly under the stirring state, added a certain amount of catalyzer, reach 3 to the system pH value, react 4h down at 60 ℃; Add 40 gram isobutyric aldehydes and 80 gram formaldehyde, drip catalyzer more gradually, be 1 to pH value after, at 90 ℃ of reactions of temperature 4h; Add organic solvent 150 grams, stirred 20 minutes, leave standstill 30 minutes after, tell lower floor's water with separating funnel, under 60 ℃, wash 10 times with deionized water; Small molecules is removed in vacuum-evaporation, when pressure reaches 2000Pa, when resin temperature reaches 150 ℃, while hot resin is poured out, and cooling promptly gets water white urea-isobutyl aldehyde-formolite copolymerization resin.With isobutyric aldehyde Mass Calculation yield.Resin yield and performance see Table 1.
Table 1
| Performance | Testing method | Index |
| Density g/cm 3 | ISO 2811 | 1.10 |
| Softening temperature ℃ | ISO 4625-1 | 95 |
| Hydroxyl value mgKOH/g | ISO 4629 | 30 |
| Acid number mgKOH/g | ISO 2114 | 1.30 |
| Colourity | ISO 4630 (50% butanone solution) | ＜1 |
| Moisture | ISO 760 | 0.38％ |
| Yield | Calculate with isobutyric aldehyde | 121％ |
| Viscosity mPas | Solid content 70% N-BUTYL ACETATE solution (NDJ-1) | 22.5 |
Embodiment 2:
(1) catalyzer
In 30 gram deionized waters, add 10 gram sulfuric acid, 10 gram phosphoric acid, it is standby to stir.
(2) organic solvent
Dimethylbenzene
(3) preparation of resin
30 gram ureas and 90 gram isobutyric aldehydes are put in the 500ml four-hole boiling flask, constantly under the stirring state, added a certain amount of catalyzer, reach 2 to the system pH value, keep temperature to react 2h down for 90 ℃; Add 70 gram isobutyric aldehydes and 100 gram formaldehyde, drip catalyzer more gradually, to pH value be 1, under 90 ℃ of temperature, react 2h; Add organic solvent 200 grams, stirred 20 minutes, leave standstill 30 minutes after, tell lower floor's water with separating funnel, under 80 ℃, wash 10 times with deionized water; Small molecules is removed in vacuum-evaporation, when pressure reaches 2000Pa, when resin temperature reaches 150 ℃, while hot resin is poured out, and cooling promptly gets water white urea-isobutyl aldehyde-formolite copolymerization resin.With isobutyric aldehyde Mass Calculation yield.Resin yield and performance see Table 2.
Table 2
| Performance | Testing method | Index |
| Density g/cm 3 | ISO 2811 | 1.10 |
| Softening temperature ℃ | ISO 4625-1 | 94 |
| Hydroxyl value mgKOH/g | ISO 4629 | 31 |
| Acid number mgKOH/g | ISO 2114 | 1.45 |
| Colourity | ISO 4630 (50% butanone solution) | ＜1 |
| Moisture | ISO 760 | 0.43％ |
| Yield | Calculate with isobutyric aldehyde | 116％ |
| Viscosity mPas | Solid content 70% N-BUTYL ACETATE solution (NDJ-1) | 21.4 |
Comparison sheet 1 and table 2 data as seen, the adding of a small amount of Witco 1298 Soft Acid has certain help to improving productive rate.Branch phase effect when the adding of sherwood oil can increase washing in addition improves processing performance.
Embodiment 3
(1) catalyzer
In the deionized water, add 10 gram sulfuric acid in the 80 gram water, 20 gram phosphoric acid, after 10 gram acetate stir, standby
(2) organic solvent
With 200 gram sherwood oils, 100 gram N-BUTYL ACETATEs mix, and are standby.
(3) preparation of resin
25 gram ureas and 70 gram isobutyric aldehydes are put in the 500ml four-hole boiling flask, constantly under the stirring state, added a certain amount of catalyzer, reach 3 to the system pH value, keep temperature to react 2h down for 60 ℃; Add 40 gram isobutyric aldehydes and 80 gram formaldehyde, drip catalyzer more gradually, to pH value be 1, at 40 ℃ of reaction 8h down; Add organic solvent 120 grams, stirred 20 minutes, leave standstill 30 minutes after, tell lower floor's water with separating funnel; Under 80 ℃, wash 4 times with deionized water; Small molecules is removed in vacuum-evaporation, when pressure reaches 2000Pa, when resin temperature reaches 170 ℃, while hot resin is poured out, and cooling promptly gets water white urea-isobutyl aldehyde-formolite copolymerization resin.With isobutyric aldehyde Mass Calculation yield.Resin yield and performance see Table 3.
Table 3
| Performance | Testing method | Index |
| Density g/cm 3 | ISO 2811 | 1.11 |
| Softening temperature ℃ | ISO 4625-1 | 112 |
| Hydroxyl value mgKOH/g | ISO 4629 | 25 |
| Acid number mgKOH/g | ISO 2114 | 3.47 |
| Colourity | ISO 4630 (50% butanone solution) | ＜1 |
| Moisture | ISO 760 | 0.23％ |
| Yield | Calculate with isobutyric aldehyde | 95％ |
| Viscosity mPas | Solid content 70% N-BUTYL ACETATE solution (NDJ-1) | 26.8 |
Vaporization temperature has certain influence to the performance of resin, and the softening temperature of resin, density increase with vaporization temperature, and hydroxyl value, moisture content then increase with vaporization temperature and reduce; When vaporization temperature surpassed 170 ℃, xanthochromia in various degree can take place in resin, and temperature is high more, and the xanthochromia degree is high more.In addition, washing times is few more, and the acid number of resin is high more.
Embodiment 4
(1) catalyzer
In the 30 gram deionized waters, add 60 gram sulfuric acid, 10 gram tosic acid stir, and are standby.
(2) organic solvent
300 gram dimethylbenzene and 100 gram pimelinketone are mixed.
(3) preparation of resin
15 gram ureas and 50 gram isobutyric aldehydes are put in the 500ml four-hole boiling flask, constantly under the stirring state, added a certain amount of catalyzer, reach 4 to the system pH value, keep temperature to react 4h down for 60 ℃; Add 40 gram isobutyric aldehydes and 80 gram formaldehyde, drip catalyzer more gradually, to pH value be 3, at 90 ℃ of reaction 6h down; Add organic solvent 150 grams, stirred 20 minutes, leave standstill 30 minutes after, tell lower floor's water with separating funnel, under 60 ℃, wash 12 times with deionized water; Small molecules is removed in vacuum-evaporation, when pressure reaches below the 2000Pa, when resin temperature reaches 150 ℃, while hot resin is poured out, and cooling promptly gets water white urea-isobutyl aldehyde-formolite copolymerization resin.With isobutyric aldehyde Mass Calculation yield.Resin property sees Table 4.
Table 4
| Performance | Testing method | Index |
| Density g/cm 3 | ISO 2811 | 1.08 |
| Softening temperature ℃ | ISO 4625-1 | 78 |
| Hydroxyl value mgKOH/g | ISO 4629 | 39 |
| Acid number mgKOH/g | ISO 2114 | 1.18 |
| Colourity | ISO 4630 (50% butanone solution) | ＜1 |
| Moisture | ISO 760 | 0.56％ |
| Yield | Calculate with isobutyric aldehyde | 102％ |
| Viscosity mPas | Solid content 70% N-BUTYL ACETATE solution (NDJ-1) | 14.5 |
The consumption of urea is bigger to the resin property influence, and its consumption is more little, and the softening temperature of resin, density, productive rate are low more, and hydroxyl value is high more; When consumption is too high, can produce white flocks during the dissolving of resin in organic solvent.
Embodiment 5
(1) catalyzer
In the 30 gram deionized waters, add 10 gram sulfuric acid, 20 gram phosphoric acid, 10 gram tosic acid stir, and are standby.
(2) organic solvent
With 250 gram toluene, 100 gram N-BUTYL ACETATEs mix.
(3) preparation of resin
25 gram ureas and 90 gram isobutyric aldehydes are put in the 500ml four-hole boiling flask, constantly under the stirring state, added a certain amount of catalyzer, reach 2 to the system pH value, keep temperature to react 8h down for 40 ℃; Add 70 gram isobutyric aldehydes and 100 gram formaldehyde, drip catalyzer more gradually, to pH value be 1, at 70 ℃ of reaction 3h down; Add organic solvent 120 grams, stirred 20 minutes, leave standstill 30 minutes after, tell lower floor's water with separating funnel, under 80 ℃, wash 10 times with deionized water; Small molecules is removed in vacuum-evaporation, when pressure reaches 2000Pa, when resin temperature reaches 150 ℃, while hot resin is poured out, and cooling promptly gets water white urea-isobutyl aldehyde-formolite copolymerization resin.With isobutyric aldehyde Mass Calculation yield.Resin property sees Table 5.
Table 5
| Performance | Testing method | Index |
| Density g/cm 3 | ISO 2811 | 1.08 |
| Softening temperature ℃ | ISO 4625-1 | 80 |
| Hydroxyl value mgKOH/g | ISO 4629 | 32 |
| Acid number mgKOH/g | ISO 2114 | 1.32 |
| Colourity | ISO 4630 (50% butanone solution) | ＜1 |
| Moisture | ISO 760 | 0.32％ |
| Yield | Calculate with isobutyric aldehyde | 107％ |
| Viscosity mPas | Solid content 70% N-BUTYL ACETATE solution (NDJ-1) | 15.0 |
The consumption of isobutyric aldehyde increases, and the softening temperature of resin can descend, but little to the influence of productive rate and hydroxyl value; But when the total consumption of isobutyric aldehyde was too high, the yield of resin and hydroxyl value can descend rapidly, and total consumption is very few, when then resin is dissolved in organic solvent, can produce cotton-shaped white precipitate.
Embodiment 6
(1) catalyzer
In the 80 gram water deionized waters, add 60 gram sulfuric acid
(2) organic solvent
100 gram pimelinketone and 200 gram sherwood oils are mixed.
(3) preparation of resin
20 gram ureas and 60 gram isobutyric aldehydes are put in the 500ml four-hole boiling flask, constantly under the stirring state, added a certain amount of catalyzer, reach 4 to the system pH value, under 90 ℃, react 8h; Add 30 gram isobutyric aldehydes and 70 gram formaldehyde, drip catalyzer more gradually, to pH value be 1, at 90 ℃ of temperature reaction 8h down; Add organic solvent 150 grams, stirred 20 minutes, leave standstill 30 minutes after, tell lower floor's water with separating funnel, under 80 ℃, wash 10 times with deionized water; Small molecules is removed in vacuum-evaporation, when pressure reaches 2000Pa, when resin temperature reaches 150 ℃, while hot resin is poured out, and cooling promptly gets water white urea-isobutyl aldehyde-formolite copolymerization resin.With isobutyric aldehyde Mass Calculation yield.Resin property sees Table 6.
Table 6
| Performance | Testing method | Index |
| Density g/cm 3 | ISO 2811 | 1.09 |
| Softening temperature ℃ | ISO 4625-1 | 83 |
| Hydroxyl value mgKOH/g | ISO 4629 | 29 |
| Acid number mgKOH/g | ISO 2114 | 1.61 |
| Colourity | ISO 4630 (50% butanone solution) | ＜1 |
| Moisture | ISO 760 | 0.29％ |
| Yield | Calculate with isobutyric aldehyde | 97％ |
| Viscosity mPas | Solid content 70% N-BUTYL ACETATE solution (NDJ-1) | 15.7 |
The length in reaction times also has certain influence to resin quality, and the time, too short, the oversize softening temperature of resin, the yield of all can causing descended.
The resin and the ethanol of the present invention's preparation, butanols, butylacetate, ethyl acetate, hexalin, acetone, butanone, pimelinketone, toluene, dimethylbenzene are placed not phase-splitting in 24 hours after pressing abundant stirring of mass ratio mixing in 2: 1.As seen good with above-mentioned solvent phase dissolubility.
The resin of the present invention's preparation is at room temperature placed and was not seen a variation in, and cyclohexanone-formaldehyde resin was placed after 3 months, obviously flavescence.
Claims (2)
1. the preparation method of a urea-isobutyl aldehyde-formolite copolymerization resin is characterized in that comprising the steps:
(1) urea is joined in the isobutyric aldehyde, drip catalyzer gradually, reach 2-4 to pH value, stir 2-8h down at 40-90 ℃;
(2) add formaldehyde successively, isobutyric aldehyde adds catalyzer again, reaches 1-3 to pH value, stirs 2-8h down at 40-90 ℃;
(3) add organic solvent, stir the back standing demix, remove lower floor's water;
(4) be under 40-80 ℃ in temperature, wash with deionized water;
(5) small-molecule substance is removed in vacuum-evaporation, obtains the urea-isobutyl aldehyde-formolite copolymerization resin product;
The mass fraction of above-mentioned raw materials is composed as follows:
Urea 15-30
Isobutyric aldehyde 80-160
Formaldehyde 60-100
Organic solvent 120-200
Catalyzer 4-50;
The catalyzer that adopts is made up of sulfuric acid, phosphoric acid, acetate, tosic acid, Witco 1298 Soft Acid, water, and its mass parts is composed as follows:
Sulfuric acid 10-60
Phosphoric acid 0-20
Tosic acid 0-10
Acetate 0-10
Witco 1298 Soft Acid 0-10
Water 30-80.
2. according to right 1 described preparation method, it is characterized in that the organic solvent that adopts is one or more mixtures in sherwood oil, dimethylbenzene, toluene, N-BUTYL ACETATE, the pimelinketone, its mass fraction is composed as follows:
Sherwood oil 0-200
Dimethylbenzene 0-300
Toluene 0-250
N-BUTYL ACETATE 0-100
Pimelinketone 0-100
Above-mentioned organic solvent mass fraction is at least a not to be 0.
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| CN101418066B (en) * | 2008-11-28 | 2010-06-02 | 华南理工大学 | Continuous production process of urea-iso-butyraldehyde-formaldehyde resin |
| CN107090066B (en) * | 2017-05-27 | 2019-02-22 | 岳阳市英泰材料科技有限公司 | Self-emulsification aqueous urea-isobutyl aldehyde-formolite resin and preparation method thereof |
| CN110016112A (en) * | 2019-05-06 | 2019-07-16 | 岳阳市英泰合成材料有限公司 | Water-soluble urea-isobutyl aldehyde-formolite resin and preparation method thereof |
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| Title |
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| 苯酚-尿素-甲醛共缩聚树脂研制I合成与分析. 杜官本等.林业科学，第36卷第5期. 2000 * |
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| CN1817931A (en) | 2006-08-16 |
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