CN1445255A - Method for catalysis synthesizing methylic metlbond epoxy acryl resin - Google Patents

Method for catalysis synthesizing methylic metlbond epoxy acryl resin Download PDF

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CN1445255A
CN1445255A CN 03114243 CN03114243A CN1445255A CN 1445255 A CN1445255 A CN 1445255A CN 03114243 CN03114243 CN 03114243 CN 03114243 A CN03114243 A CN 03114243A CN 1445255 A CN1445255 A CN 1445255A
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acid
epoxy
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methyl
carboxyl
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曾兆华
杨建文
陈用烈
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Sun Yat Sen University
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Abstract

A methylphenolic epoxy acrylic resin is prepared through the reaction of the epoxy group of epoxy resin on the carboxy group of the monomer containing carboxy and (methyl) acryloyloxy for grafting the acryloyloxy to methylphenolic epoxy resin. It features use of a composite catalyst composed of two or more catalyst for full reaction. Its advantages are low acidicity, and low viscosity.

Description

The process for catalytic synthesis of methyl phenolic aldehyde epoxy acrylic resin
Technical field
The present invention relates to the preparation method of a class methyl phenolic aldehyde epoxy acrylic resin.
Background technology
The phenolic aldehyde epoxy acrylic resin can obtain comparatively ideal electrical property and thermotolerance etc. behind crosslinking curing, thereby application is more widely mainly arranged on electronic industry.For example, the phenolic aldehyde epoxy acrylic resin can be used as the matrix resin of ultraviolet light polymerization welding resistance printing ink.Also can make water-soluble or alkali-soluble optical cross-linked resin after further modification, be the critical material of making the used photoimageable solder resist printing ink of high-density electronic circuit board at present.Preparation about the bisphenol type epoxy acrylic resin is comparatively ripe, generally adds quantitative solvent under single catalyst system, and bisphenol A epoxide resin and the general functional group's mol ratio direct reaction by 1: 1.05 of vinylformic acid are got final product.But for synthesizing of methyl phenolic aldehyde epoxy acrylic resin, the photoimageable solder resist printing ink used of electronic circuit board particularly, because of the viscosity of used sylvan formaldehyde epoxy resin own very big, epoxy functionalities is higher in the molecular resin, epoxy group(ing) sterically hindered bigger, for example normal temperature is solid down, softening temperature is at the JF more than 65 ℃ 43, Epon 164, Epon 165 resins such as grade, when reacting with the vinylformic acid esterification by ring opening, as still adopting the single catalyst system of existing bibliographical information, for example tertiary amine compounds is (as triethylamine, N, the N-dimethyl benzylamine, N, accelerine, pyridine and substitutive derivative thereof, glyoxaline compound etc.), non-proton quaternary ammonium salt [4 bromide, tetramethyl ammonium chloride, Tetrabutyl amonium bromide, tetrabutylammonium chloride, tri-methyl benzyl ammonium bromide, trimethyl benzyl ammonia chloride etc.], transition metal organic acid salt (stannous octoate, chromium naphthenate etc.), transition metal organic coordination compound [praseodynium chromium (III), three Whitfield's ointment chromium (III) etc.], triphenylphosphine, one of following unfavorable situation will appear in catalyzer such as antimony triphenyl at least:
1) reaction does not finish as yet, and when the system acid number was still higher, viscosity had increased more, until gel takes place.When for example being catalyzer with tertiary amines such as triethylamine, dimethyl Bian amine and imdazole derivatives.This class catalyst themselves also can be used as the open loop solidifying agent of Resins, epoxy, when vinylformic acid and epoxy carry out the esterification by ring opening reaction, the competing reaction of ring-opening polymerization takes place in epoxide group under the amines catalyst effect, finally cause big weight oligomers or jel product to generate.
2) reaction of carboxylic acid and epoxy group(ing) may be comparatively complete, and final oxirane value can reduce to zero, and acid number can drop to below the 1mgKOH/g, but system viscosity is bigger, forms gel easily.
3) reaction of carboxylic acid and epoxy is very fast, and the system final viscosity is also lower, but the reaction of final carboxylic acid and epoxy is incomplete, and acid number generally rests on more than the 6.0mgKOH/g, and remaining have a small amount of epoxide group.Be catalyzer for example with transition metal organics etc.
If methyl phenolic aldehyde epoxy acrylic resin viscosity is too high or contain remaining epoxide group, will hinder its practicality.For example viscosity is too high or the resin that contains remaining epoxide group further with the happen occasionally danger of gel of polycarboxylic acid anhydride modification, product property inconvenience control, even the carboxylated epoxy acrylic resin that obtains does not have gel, but higher viscosity will be brought the inconvenience of subsequent technique, even also is easy to take place to influence the incipient gel curing of development resolving power when deployed printing ink prebake.
Summary of the invention
The object of the present invention is to provide the new synthetic method of a class methyl phenolic aldehyde epoxy acrylic resin.This method adopts composite catalyst system, final system acid number is lower, epoxide group transforms fully, guarantee that simultaneously gained methyl phenolic aldehyde epoxy acrylic resin viscosity is lower, gained methyl phenolic aldehyde epoxy acrylic resin is more suitable in application or further processing, thereby solves the existing problem of above-mentioned prior art.
Methyl phenolic aldehyde epoxy acrylic resin synthetic method of the present invention is the carboxyl reaction in epoxide group and the monomer that contains carboxyl and (methyl) acryloxy by Resins, epoxy, makes the sylvan formaldehyde epoxy resin connect acryloxy.Wherein adopt two or more catalyzer that catalysis is carried out in above-mentioned reaction.Its typical reaction equation is as follows:
Figure A0311424300041
The concrete steps of the inventive method are: sylvan formaldehyde epoxy resin and solvent are mixed and heated to dissolving fully in the reaction vessel of being furnished with heating unit, reflux exchanger and whipping appts, Heating temperature is that room temperature is to solvent boiling point (being generally 80 ℃); When mixture is tied to form homogeneous solution, add stopper, with the monomer generation polymerization that contains carboxyl and (methyl) acryloxy that prevents to add subsequently, add monomer and the composite catalyst that contains carboxyl and (methyl) acryloxy then, fully stir, under 100 ℃ to 140 ℃ (being generally 120 ℃) temperature, react then, obtain the acroleic acid esterification target product.Reaction times was generally 4 to 10 hours.Time is long more to make that reaction is thorough more, acid number is low more.
Used sylvan formaldehyde epoxy resin in the above-mentioned synthetic method, can be the JF series product of domestic production and the ENC trade mark product of CIBA company, also can be other oligopolymer that contains epoxide group, its molecular weight be between 300~3000, and more suitable molecular weight is 540~1270.
The solvent that uses in the above-mentioned synthetic method should satisfy following condition: (1) can dissolve employed Resins, epoxy; (2) not with reaction system in material generation chemical reaction; (3) boiling point is more than 80 ℃.Typical solvent has toluene, dimethylbenzene, acetic acid butoxy ethyl ester etc.Solvent load is with the complete solubilizing reaction thing of energy and provide suitable viscosity to be advisable; Specifically, the weight ratio of solvent and Resins, epoxy is between 0.2: 1 to 10: 1, and more suitable scope is 0.4: 1 to 2: 1.
The monomer that contains carboxyl and (methyl) acryloxy of indication contains carboxyl in its molecule in the above-mentioned synthetic method, contains acryloxy or methacryloxy simultaneously.Typical example is a vinylformic acid.Its consumption is decided on the required double bond content of target product.
In the above-mentioned synthetic method employed composite catalyst by be selected from respectively in following a few class two classes or more than two classes in one or more catalyzer form:
A, tertiary amine compounds, as triethylamine, N, N-dimethyl benzylamine, N, accelerine, pyridine and substitutive derivative, glyoxaline compound etc.;
B, non-proton quaternary amine are changed amine, tetrabutyl bromine (chlorine) change amine, trimethyl benzyl bromine (chlorine) change amine etc. as tetramethyl-bromine (chlorine);
C, triphenylphosphine, triphenylarsine etc.;
The inorganic salt of D, metal are as the muriate of chromium, lithium, zirconium, potassium, sodium, tin, zinc, lead etc., bromide etc. or their hydrate;
The metal-salt of E, carboxylic acid is as the salt of the lithium of naphthenic acid, lauric acid, stearic acid, oleic acid and octylenic acid etc., zirconium, potassium, sodium etc.
F, transition metal organic coordination compound are fluoridized chromium acetylacetonate etc. as praseodynium chromium, three Whitfield's ointment chromium, three.
The used composite catalyst of the present invention is made up of two kinds of catalyzer that are selected from the above-mentioned inhomogeneity usually; For example form by four butyl bromation amine in the non-proton quaternary amine (TBAB) and the praseodynium chromium (CrA) in the transition metal organic coordination compound; Two kinds of catalyst consumption ratios (mol ratio) are 1: 99 to 99: 1, and more suitable ratio is 1: 2 to 2: 1.Except forming, also can in identical or different kind, select the third or more kinds of catalyzer to be used by two kinds of dissimilar catalyzer; Various catalyst consumption ratios can be arbitrary proportions.Total consumption of composite catalyst is 0.05% to 2% (molecular fraction) of carboxyl-content, and more suitable consumption is 0.1% to 0.5%.
The stopper that uses in the above-mentioned synthetic method is the stopper that prevents that the free yl polymerizating monomer polymerization from adopting usually, as Resorcinol, p methoxy phenol.Its consumption is monomeric 0.1% to 5% (weight percentage) that contains carboxyl and (methyl) acryloxy that is added, and more suitable consumption is 0.5% to 2.5%.
The inventive method is owing to adopt composite catalyst system, promoted the thorough esterification by ring opening reaction of vinylformic acid and epoxy, make final system acid number lower, epoxide group transforms fully, guaranteed that simultaneously gained methyl phenolic aldehyde epoxy acrylic resin viscosity is lower, gained methyl phenolic aldehyde epoxy acrylic resin is more suitable in using or further processing.
Embodiment
The invention will be further described by the following examples.
Embodiment one:
50 gram JF 43 sylvan formaldehyde epoxy resins (jiangsu wuxi resin processing plant); 22.0 adding, gram acetic acid butoxy ethyl ester solvent (EastmanChemical Ltd.) takes back in the 250mL three-necked bottle of flow condenser and agitator; heating; molten entirely in 80 ℃ of stirrings until Resins, epoxy; system becomes homogeneous solution; add 0.2 gram p methoxy phenol (Shanghai chemical reagent main office); 15.5 gram vinylformic acid (Guangzhou Chemical Reagent Factory); and the CrA (Fluka chemical company) of the TBAB of 0.25mmol (Shanghai chemical reagent main office) and 0.25mmol adds simultaneously as catalyzer; fully stir; 120 ℃ the reaction 6 hours after; obtain the acroleic acid esterification target product; acid number is 7.71, and viscosity is 2220cps (60 ℃).
Use the CrA of 0.50mmol instead when catalyzer, other condition is the same, then react 6 hours after, acid number is 10.09, viscosity is 2300cps (60 ℃).
Embodiment two:
Catalyzer is used the TBAB of 0.50mmol and the CrA of 0.50mmol instead, and both add simultaneously, and other condition is with example one.React after 6 hours, acid number is 4.03, and viscosity is 2230cps (60 ℃).
Use the CrA of 1.00mmol instead when catalyzer, other condition is the same, then react 6 hours after, acid number is 6.42, viscosity is 2230cps (60 ℃).
Use the TBAB of 1.00mmol instead when catalyzer, other condition is the same, then react 6 hours after, acid number is 2.05, viscosity is 2870cps (60 ℃).
Embodiment three:
Add the TBAB catalyzer of 0.50mmol during the reaction beginning earlier, react the CrA catalyzer that adds 0.50mmol after 3 hours again, other condition is with example one.React after 6 hours, acid number is 6.01, and viscosity is 3830cps (60 ℃).
Above-mentioned example shows, uses under the integral molar quantity situation all identical with the reaction times at catalyzer, and except that single TBAB catalyst system, the endpoint acid number of complex catalyst system product will be starkly lower than the single catalyst system, and the viscosity of terminal point is basic identical.Though single TBAB catalyst system products therefrom acid number is low, viscosity is bigger, and easy gel in the reaction process.In addition, two kinds of catalyzer add when the reaction beginning simultaneously, and it is good that effect adds than segmentation.

Claims (10)

1. the preparation method of a methyl phenolic aldehyde epoxy acrylic resin, its concrete steps are: sylvan formaldehyde epoxy resin and solvent are mixed and heated to dissolving fully in the reaction vessel of being furnished with heating unit, reflux exchanger and whipping appts, Heating temperature is that room temperature is to solvent boiling point; When mixture is tied to form homogeneous solution, add stopper, add monomer that contains carboxyl and (methyl) acryloxy and the composite catalyst of forming by two or more single catalyst then, fully stir, under 100 ℃ to 140 ℃ temperature, react then, obtain the acroleic acid esterification target product; Used solvent is to dissolve employed Resins, epoxy in present method, and not with reaction system in material generation chemical reaction, boiling point at the organic solvent more than 80 ℃, the weight ratio of solvent and Resins, epoxy is between 0.2: 1 to 10: 1; Used stopper is the stopper that prevents that the free yl polymerizating monomer polymerization from adopting usually, and its consumption is that the carboxyl that contains that is added reaches monomeric 0.1% to 5% of (methyl) acryloxy by weight; The consumption of composite catalyst is 0.05% to 2% of carboxyl-content in molar ratio.
2. in accordance with the method for claim 1, it is characterized in that employed composite catalyst by be selected from respectively in following a few class two classes or more than two classes in one or more catalyzer form: A. tertiary amine compounds: triethylamine, N, N-dimethyl benzylamine, N, accelerine, pyridine and substitutive derivative thereof, glyoxaline compound; B. non-proton quaternary amine: tetramethyl-bromine (chlorine) is changed amine, tetrabutyl bromine (chlorine) is changed amine, trimethyl benzyl bromine (chlorine) change amine; C. triphenylphosphine, triphenylarsine; D. the inorganic salt of metal: chromium, lithium, zirconium, potassium, sodium, tin, zinc, plumbous muriate, bromide, or their hydrate; E. the metal-salt of carboxylic acid: the lithium of naphthenic acid, lauric acid, stearic acid, oleic acid and octylenic acid, zirconium, potassium or sodium salt.F. transition metal organic coordination compound: praseodynium chromium, three Whitfield's ointment chromium, three are fluoridized chromium acetylacetonate.
3. according to claim 1 or 2 described methods, it is characterized in that the consumption of composite catalyst is 0.1% to 0.5% of carboxyl-content in molar ratio.
4. in accordance with the method for claim 1, it is characterized in that the reaction times is 4 to 10 hours.
5. according to the described method of claim 1,2 or 4, the molecular weight that it is characterized in that used sylvan formaldehyde epoxy resin is between 300~3000.
6. in accordance with the method for claim 5, the molecular weight that it is characterized in that used sylvan formaldehyde epoxy resin is 540~1270.
7. according to the described method of claim 1,2 or 4, it is characterized in that used solvent is toluene, dimethylbenzene or acetic acid butoxy ethyl ester, the weight ratio of solvent and Resins, epoxy is 0.4: 1 to 2: 1.
8. according to the described method of claim 1,2 or 4, it is characterized in that the used monomer that contains carboxyl and (methyl) acryloxy, contain carboxyl in its molecule, contain acryloxy or methacryloxy simultaneously.
9. in accordance with the method for claim 8, it is characterized in that the used monomer that contains carboxyl and (methyl) acryloxy is a vinylformic acid.
10. according to claim 1,2 or 4 described methods, it is characterized in that used composite catalyst is made up of the praseodynium chromium in four butyl bromation amine in the non-proton quaternary amine and the transition metal organic coordination compound, two kinds of catalyst consumption are 1: 99 to 99: 1 in molar ratio.
CN 03114243 2003-04-17 2003-04-17 Method for catalysis synthesizing methylic metlbond epoxy acryl resin Expired - Fee Related CN1233682C (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100386356C (en) * 2006-01-17 2008-05-07 江苏三木集团有限公司 Improved epoxy acrylic ester and its prepn
CN101602858B (en) * 2009-07-17 2011-04-13 中海油常州涂料化工研究院 Water soluble acrylic acid epoxy resin and preparation method thereof
CN102702480A (en) * 2012-06-29 2012-10-03 惠州市长润发涂料有限公司 Modified epoxy acrylate and preparation method thereof
CN103342798A (en) * 2013-07-16 2013-10-09 华东理工大学 Synthesis method for low-viscosity high-temperature-resistant modified epoxy resin
CN104072687A (en) * 2014-06-27 2014-10-01 华东理工大学华昌聚合物有限公司 Epoxy vinyl ester resin compound catalytic synthesis technology
CN105085973A (en) * 2015-08-31 2015-11-25 沈阳化工大学 Preparation method for electron beam-cured double-bond phenolic foam material
CN110511654A (en) * 2019-09-09 2019-11-29 上海昱彩包装材料有限公司 A kind of metal packaging coating of electronic beam curing and preparation method thereof
CN112094532A (en) * 2020-11-11 2020-12-18 佛山市鑫正化工有限公司 Preparation method of ultraviolet curing solder mask ink, product and application thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100386356C (en) * 2006-01-17 2008-05-07 江苏三木集团有限公司 Improved epoxy acrylic ester and its prepn
CN101602858B (en) * 2009-07-17 2011-04-13 中海油常州涂料化工研究院 Water soluble acrylic acid epoxy resin and preparation method thereof
CN102702480A (en) * 2012-06-29 2012-10-03 惠州市长润发涂料有限公司 Modified epoxy acrylate and preparation method thereof
CN103342798A (en) * 2013-07-16 2013-10-09 华东理工大学 Synthesis method for low-viscosity high-temperature-resistant modified epoxy resin
CN103342798B (en) * 2013-07-16 2015-08-19 华东理工大学 A kind of synthetic method of low viscosity, fire resistant modified epoxy
CN104072687A (en) * 2014-06-27 2014-10-01 华东理工大学华昌聚合物有限公司 Epoxy vinyl ester resin compound catalytic synthesis technology
CN105085973A (en) * 2015-08-31 2015-11-25 沈阳化工大学 Preparation method for electron beam-cured double-bond phenolic foam material
CN105085973B (en) * 2015-08-31 2017-11-14 沈阳化工大学 A kind of preparation method of pnenolic aldehyde foam material of the electronic beam curing with double bond
CN110511654A (en) * 2019-09-09 2019-11-29 上海昱彩包装材料有限公司 A kind of metal packaging coating of electronic beam curing and preparation method thereof
CN110511654B (en) * 2019-09-09 2021-08-03 上海昱彩包装材料有限公司 Electron beam cured metal packaging coating and preparation method thereof
CN112094532A (en) * 2020-11-11 2020-12-18 佛山市鑫正化工有限公司 Preparation method of ultraviolet curing solder mask ink, product and application thereof
CN112094532B (en) * 2020-11-11 2021-02-19 佛山市鑫正化工有限公司 Preparation method of ultraviolet curing solder mask ink, product and application thereof

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