• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A METHOD FOR OBTAINING A WATER-RESISTANT BINDING FOR ELECTROPHORETICALLY SURVIVING ON A CATHODE OF HOT DRYING VARNISH by reacting compounds containing an active hydrogen atom.:, With the isocyanate component, I distinguish y. so that, in order to obtain a self-hardening binder, a compound selected from the group comprising the reaction product of an epoxy compound based on 4,4-bis- (oxyphenyl propane with a secondary apcanlamine interaction product 2 mol is used as a compound containing an active hydrogen atom) epoxy compound based on 4,4-bis- (hydroxyphenyl-propane 1 mol of saturated aliphatic C5-C (D dicarboxylic acid and 2 mol dialkanolamine, copolymer of ester of C-C-alkanol with hydroxy-C-Cd-alkyl- (meth) acrylate ; polyester on wasps novmerytech, nephew monomer containing an active atom , hydrogen and grouping — sec-sec, CO taken in an amount that provides double bonds in the final product from 0.8 to 1.9 per 1000 units of molecular weight, and the interaction is carried out at 20-80 ° ;WITH. Priority on the grounds: 19.07.76 - when using the product of the interaction of toluylene, isocyanate, hexamethylenediisocyanate or isophorone diisocyanate with an ethylenically unsaturated monomer containing an active hydrogen atom. eo | 10.29.76 - when using the product of the interaction, 2 mol of epoxy compound based on 4,4-bisfaxiphenylfropane, 1 molar is saturated with aliphatic C d-dicarboxylic acid and 2 mol of dialkanolamine.
    公开号:SU1079178A3
    申请号:SU772504506
    申请日:1977-07-18
    公开日:1984-03-07
    发明作者:Пампухидис Георгиос；Даймер Вольфганг；Хениг Хельмут
    申请人:Вианова Кунстхарц Аг (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to the preparation of a binder for electrophoretically deposited baking varnish on a cathode and can be used in various industries.
    A known method for producing a water-soluble binder for electrophoretic hot drying lacquer deposited on the cathode by reacting alcohols, diisocyanates, and oxyalkyl acrylates 11 The disadvantage is that a high temperature and long cure time are required for film formation.
    Closest to the proposed. is a method for preparing a water soluble binder for electrophoretically deposited baking lacquer C2 on the cathode.
    The disadvantage of this method is that high temperatures and a long cure time are necessary for satisfactory film formation. It is also unprofitable that the cleavage product of the urethane group clogs the environment and, as inert components, adversely affects the properties of the coatings.
    The purpose of the invention is to obtain a self-curing binder.
    This goal is achieved in that according to the method for producing a water-soluble binder for an electrophoretic hot drying lacquer deposited on the cathode by reacting compounds containing an active hydrogen atom with the isocyanate component, a compound selected from the group comprising the product of the interaction of an epoxy compound based on 4,4-bis- (hydroxyphenyl) propane with a secondary alkanolamine the product of the interaction 2 mol of the epoxy compound per 4,4-bis- (hydroxyphenyl) -propane-based 1 mol of saturated aliphatic Cg-Cd-dicarboxylic acid 2 mol of dialkanolamine copolymer of Su, -C4-alkanol ester with hydroxy-C. -C-alkyl-i Iet) acrylate; polyester based on dimethylphenol isophorne diisocyanate with an ethylenically unsaturated monomer containing an active atom and a group X
    : - WITH ST - WITH, TAKEN IN THE AMOUNT,
    providing a content in the final product of double bonds from 0.8 to 1.9 per 100 units of molecular weight, and the interaction is carried out at 20-80 ° C,
    The concentration of the binder in water depends on the parameters of the method during the treatment using the electric window method and lies in the range of 3-30 wt.%, Preferably 5-15 wt.%. Is ready
    processing form may in some cases
    Other cases also contain various additives, such as pigments, fillers, surfactants, etc.
    g When deposited, the aqueous coating mass containing the proposed binders comes into contact with the electrically conductive anode and the electrically conductive cathode, the surface of the cathode being coated with a coating agent. Can cover different
    electrically conductive substrates, in particular metallic substrates, such as steel, aluminum, copper, and the like, as well as metallized synthetic materials or other substances provided with an electrically conductive coating.
    After deposition, the coating is cured at a high temperature. For
    For curing, temperatures of from 130 to 200 ° C are used, preferably 150 to 180 ° C. The curing time is 5-30 minutes, preferably 10-25 minutes.
    5 Preparation of monoisocyanate pre-products,
    The isocyanate is placed in a suitable reactor and, in the absence of moisture, monomer or a monohydric alcohol or monocarboxylic acid are added dropwise at 2535 ° C for 1 hour. Then, the initial mixture is heated to 70 s and stirred at this temperature for some time.
    5 The composition of individual pre-products is presented in Table 1, The reaction additives in the media contain in each separate case 1 equivalent of free isocyanate protein.
    174 Toluene diisocyanate P
    leic acid. and hydroxybutyrate
    Hydroxyethyl Methacrylate (0.7) Oil on Acid (0.3) LPH A - liquid bisphenol A based epoxy resin 4,4-bis- (hydroxyphenyl Cropane J with epoxy equivalent 180-190} NPH B - solid bsphenol based epoxy resin A With a melting point of 64-76 ° C and an epoxy equivalent of 450-500; EPH C is a high bisphenol A epoxy resin with an epoxy equivalent of about 260; CLEAR is a solution of polymerizate obtained in a known manner in the form of a 60% solution in AEGLAC of 250 h of ethyl acrylate, 250 parts of methyl methacrylate, 116 hours of i-butyl acrylate, 284 hours, glycidyl methacrylate and 100 parts of styr ola EPB - about 300 epoxy, commonly sold epoxidized polybutadnene, epoxy equivalent to about 300, viscosity about 700 spua / 50 ° C and average molecular weight, about 11,500 j SOR Y - polymerizate solution prepared in a known manner from 250 parts of methyl methacrylate, 250 parts of ethyl acrylate, 25, part h, 11-dimethylaminoethyl acrylate, 250 parts of HEMA in the solution of 430 parts AEGLACi ORB I -... difficult oxazoline polyester obtained according to the invention to the patent Austria 309 624 273 h of dimethyl terephthalate, 312 parts neope71tilglikol, 363 hours... adipic acid and 225 g t rice- (hydroxymethyl aminoethane COPh ffi - copolymer of styrene and maleic anhydride with a molecular weight of about 2000 and an equivalent of maleic anhydride, about 500; PBA is maleic anhydride and liquid polybutanediene adduct with more than 60% cis-1,4-, more than 25% trans-1,4, and less than 3% vinylic double bonds, with a molecular weight of 1500 and a viscosity of about 750 m .Asek 120C}, the ratio of polybutadiene-mgcheic anhydride is 8; 1 (weight-parts) and the equivalent of mg-neic acid anhydride calculated from this is 500} DOLA - diethanol syn) DIPA - diisopropanolamine; DMBA - dimethylethanolamy; DPA - give opropylamine; DBA - diiaobutylamine} AEGLAC - monoethylene glycol monoethyl 1 st ether acetate; AEAC ethyl acetate DHK dimethylformamide; AU1 adipic acid; SUB cork acid, FKP solids content, wt.%
    Examples 1-12. The examples describe the reaction of precursors of epoxide-amine with mono-eocyanate pre-products.
    In a reactor equipped with a stirrer, an addition funnel, a thermometer, and a reflux condenser, to an epoxy compound, in some cases in the presence of an inert solvent. In relation to the isocyanate of a solvent, for example, monoethylene glycol monoethyl ether acetate (ethyl, glycol acetate, add a secondary amine over 1 hour and then at elevated temperature completely
    carry out the reaction. The product of the reaction is mixed with a monoisocyanate pre-product and, in the absence of moisture, at SO-B C for 1-2 hours, they are reacted to an NCO-value equal to O,
    When using liquid epoxy compounds as in Example 1, the reaction with the amine 1 can be carried out without solvents. In this case, the reaction product is diluted with the provided solvent. . Quantitative ratios and reaction conditions for the examples are presented in Table. 2-.
    Example 13-16. These examples describe the reaction products of basic pre-products containing basic nitrogen atoms with a monoisocyanate pre-product.
    The preparation of these products is carried out similarly to the method described in examples 1-12 for these steps of the method. The number and reaction conditions are given in table. 3
    Table 3
    % - ny p Note. X P and measures 17-20. In examples 17-20, the products of the interaction of anhydride groups containing compounds with amino alcohols and unsaturated monoisocyanate preprducts are described. The reaction of the anhydride solution with amino alcohol is carried out at 120-150 17СОР Sh1000 MEA 178 140 AEGLAC504 MEA 178 140 18СОР Ш. 1000 AEGLAC504 MEL 178 135 19РВА1000 in OREAC. to an acid number, which corresponds to a half-ester, and then approximately when the product is reacted with a monoisocyanate pre-product to an NCO-group value equal to 0. Quantitative ratios and reaction conditions are given in Table 4. Table 4. 95 С (70) 910360 -f 95 Н (70) 853360 95 А (70) 868360
    504
    AEGLAC
    Examples 21-28. The examples show the use of interaction products of diepoxide, dicarboxylic acid and amine as the main resin. I
    Fitted with a stirrer, an addition funnel, a thermometer and a reflux reactor, cool the reactor to an epoxy compound, in some cases in the presence of an inert solvent relative to the isocyanate, such as ethyl glycol monoethyl glycol monoethyl acetate acetate;) dicarboArH 720 ADJ AJETEG As in example 1 As in example 1 EPH A 720 ADI 146 AEGLAC. 286 ERN A 720 SOB 174 AEGLAC 279 As in example 5 ЕНН С 1040 174
    1 Continuation of the table. four
    new acid and; secondary amine, and then at 100-160 The reaction is completely carried out. The reaction product is mixed with mono-iso-saturated pre-product and in the absence of moisture at 50-60 ° C for 1-2 hours, reacting to a value of x-groups equal to 0. The reaction of the epoxy compound with dicarboxylic acid and secondary amine can also be carried out (existed At some stages There is almost no effect on the reaction x. The number of components and the reaction conditions are shown in Table 5.
    .Table 5
    DOLA 210
    146

    DlPA 266
    DOLA 210
    DQLA 210 582
    80
    760 A 80
    21.
    22 23 24
    80
    80
    760
    25
    760
    26 27 868
    70
    868
    28 29 610
    70
    Continued table. five
    Continued table. five
    1-2 50-60
    A (80)
    1-2
    50-60
    50-60
    1-2 1-2 50-60
    1-2
    50-60 60-70 2 Of the binders according to examples 1-3, samples are made, in each case 100 g of solid Osmola with the indicated in table. With 6% acid and with stirring, they are supplemented with deionized water to 100 (5 g of 10% pacTBOiaa are applied to various substrates by cattophoresis. The deposition time is Continued. 5 em in all cases 60 a. Then the coated substrates are rinsed with deionized it is cured with water and at the indicated temperature. The average thickness of the coating film dried by the method of hot drying is 13–17 mm, general test results are presented in Table 6. I. Table 6
    . Continued table. 6
    权利要求:
    Claims (2)
    [1]
    METHOD FOR PRODUCING A WATER-SOLUBLE BINDER FOR ELECTROPHORETICALLY DEPOSITED ON THE VARNISH OF A HOT DRY by reacting compounds containing an active hydrogen atom with an isocyanate component, characterized in that, in order to obtain a self-solidifying binder, the active compound is used as a group comprising a reaction product of an epoxy compound based on 4,4'-bis-
    - (oxyphenyl Ι-propane with secondary alkanolamine; the reaction product of 2 mol of an epoxy compound based on 4,4 * -bis- (oxyphenyl / propane 1 mol of saturated aliphatic Sdicarboxylic acid and
    [2]
    2 mol of dialkanolamine, a copolymer of C 4 -C 4 alkanol ether with hydroxy-C ^ -C ^ -alkyl- (meth) acrylate; based polyester. dimethyl terephthalate, neopentyl glycol, adipic acid and tri- (oxymethyl) aminomethane) the product of the interaction of styrene and maleic anhydride with a molecular weight of 2000 or liquid polybutadiene with maleic anhydride and monoalkanolamine, using the isocyanocyanate and an ethylenically unsaturated monomer containing an active hydrogen atom and a -c = c -c /
    SU m 1079178 taken in an amount ensuring the content of double bonds in the final product from 0.8 to 1.9 per 1000 units of molecular weight, and the interaction is carried out at 20-80 ° C.
    Priority by signs:
    19.07 · 76 - when using the product of the interaction of toluene diisocyanate, hexamethylene diisocyanate or isophorondiisocyanate with an ethylenically unsaturated monomer containing an active hydrogen atom. j29.10.76 - when using the reaction product, 2 mol of an epoxy compound based on 4,4-bis-ChexiphenylEpropane, 1 mol of saturated aliphatic C5 — C.j-dicarbonoric acid and 2 mol of dialkanolamine.
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2610278C2|2012-06-25|2017-02-08|Ппг Индастриз Огайо, Инк.|Aqueous resinous dispersions including zincamidine complex and methods for manufacture thereof|CA1024291A|1972-12-22|1978-01-10|Ppg Industries, Inc.|Self-crosslinking cationic electrodepositable compositions|NL7708567A|1977-08-03|1979-02-06|Akzo Nv|WATERY COATING COMPOSITION TO BE APPLIED CATAPHORETICALLY, METHOD FOR PREPARATION THEREOF, AND METHOD FOR APPLYING THE COMPOSITION.|
    JPS572370A|1980-05-07|1982-01-07|Scm Corp|Manufacture of aqueous dispersion of cationically electrodepositable resin|
    JPH048399B2|1983-02-18|1992-02-14|Tohoku Denryoku Kk|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT528376A|AT342168B|1976-07-19|1976-07-19|METHOD FOR THE PRODUCTION OF BINDING AGENTS FOR ELECTRO DIP PAINTING|
    AT806676A|AT348634B|1976-10-29|1976-10-29|PROCESS FOR THE PRODUCTION OF BINDERS FOR ELECTRIC DIP PAINTING|
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