CN111393996A - Polymerized rosin mixed ester and preparation method and application thereof - Google Patents
Polymerized rosin mixed ester and preparation method and application thereof Download PDFInfo
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- CN111393996A CN111393996A CN202010316267.7A CN202010316267A CN111393996A CN 111393996 A CN111393996 A CN 111393996A CN 202010316267 A CN202010316267 A CN 202010316267A CN 111393996 A CN111393996 A CN 111393996A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; DRIERS (SICCATIVES); TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
- C09F1/04—Chemical modification, e.g. esterification
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- 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
Abstract
The invention discloses a polymerized rosin mixed ester and a preparation method and application thereof, belonging to the field of rosin esters. The structural formula of the polymerized rosin mixed ester is shown as a formula (I). It is prepared by esterification reaction of polymerized rosin and mixed alcohol. Wherein the raw material polymerized rosin is a polymerized product of rosin, belongs to natural renewable resources, has rich sources, is environment-friendly and clean, and is simple to prepare. According to the preparation method, long-chain monohydric alcohol or dihydric alcohol is added in the reaction process of polymerized rosin and trihydric alcohol or tetrahydric alcohol, so that the softening point and the rigidity of the resin are reduced, the compatibility of the resin and a matrix polymer under a low-temperature condition is improved, the limitation of the use temperature of the polymerized rosin ester is overcome, and the polymerized rosin ester can be kept under different temperature conditionsBetter adhesive property.
Description
Technical Field
The invention belongs to the field of rosin esters, and particularly relates to a polymerized rosin mixed ester and a preparation method and application thereof.
Background
Polymerized rosin ester is a product obtained by esterification of polymerized rosin and alcohol, wherein the polymerized rosin as a raw material is a rosin derivative and is generally prepared in a solvent by adopting a catalytic polymerization process. The polymerized rosin has the main component of dimer of abietic acid, contains two carboxyl groups in the molecular structure, has the characteristics of high softening point, light color, no crystallization, excellent oxygen resistance, good thermal stability, higher viscosity in an organic solvent, low acid value and the like, and can be directly applied as an important chemical raw material and also can be processed into esters or salts for application.
Compared with polymerized rosin, the polymerized rosin ester has the characteristics of better oxygen resistance, crystallization resistance, thermal stability, higher cohesive force, proper solvent viscosity, wide compatibility, solubility and the like. In addition, the polymerized rosin ester has a higher softening point, and the influence of carboxyl is eliminated. Polymerized rosin ester is one of the main deep-processing products of rosin, and is widely used in the industries of printing ink, adhesive, coating and the like due to the characteristics of good oxygen resistance, high softening point, fast curing, high viscosity and the like, and particularly used as a binder in high-grade printing ink, such as color printing ink, laser printing ink, duplicating ink and the like.
CN107699137A discloses a method for preparing high-quality polymerized rosin pentaerythritol ester by taking a crude product as a raw material. The preparation method mainly comprises the steps of firstly crushing a crude product of the polymerized rosin pentaerythritol ester, and sequentially adding castor oil, a composite antioxidant, a platinum-palladium bimetallic nano-catalyst and Al2O3Then introducing hydrogen and heating to obtain a melt, and then releasing pressure and distilling to remove castor oil to obtain the light-colored polymerized rosin pentaerythritol ester. The color of the resin was measured by heating the resulting polymerized rosin pentaerythritol ester at 180 ℃ for 8 hours, and the data showed that the color of the samples prepared in the examples rose by 1 garner color number, while the color of the samples prepared in the comparative examples rose by 2 to 3 garner color numbers, indicating that the results are trueThe samples prepared in the examples have better stability. The preparation method only researches the color change of the product and does not relate to the test of other properties, so that the overall performance of the sample is not clear.
CN110799598A discloses a light-colored rosin ester composition and a preparation method thereof. The light-colored rosin is prepared by mixing one or more rosins with a cocatalyst to form a mixture, and heating the mixture to a temperature to produce the light-colored rosin. Wherein the cocatalyst can be acridone, anthrone, 9-fluorenone, thioxanthone, xanthone, derivatives or combinations thereof, and the rosin used comprises tall oil rosin, gum rosin, wood rosin, disproportionated rosin, fortified rosin and combinations thereof. The results show that when the rosin ester composition is heated to 177 ℃ for 96 hours, the change in Gardner color unit is 5.0 or less, and the softening point is substantially unchanged from the reference and maintained below 100 ℃.
CN107384217A discloses a rosin ester and a preparation method thereof. The preparation method of the rosin ester mainly comprises the step of carrying out esterification reaction on rosin (A) and alcohol (B) under the action of a catalyst group (C), wherein the component (A) is raw rosin and/or derivatives thereof, the component (B) contains triol, tetraol and/or hexaol, and the component (C) contains phosphonic acid derivatives (C1) and alkaline earth metal compounds (C2) or reaction product salt compounds (C') of the phosphonic acid derivatives (C1) and the alkaline earth metal compounds (C2). The performance evaluation of the prepared rosin ester shows that the softening point of the rosin ester is not greatly changed relative to the softening point of the rosin and is basically maintained at about 100 ℃.
Due to high molecular weight, high softening point and strong rigidity, the polymerized rosin ester has low compatibility with matrix polymers such as adhesives and the like under a low-temperature condition, and can not effectively improve the glass transition temperature of the polymers when used as tackifying resin, reduce the movement of a subchain in a high-frequency region and the movement of molecules in a low-frequency region, and can not be effectively dispersed into materials such as adhesives and the like, so that the bonding performance of the polymerized rosin ester is influenced. Therefore, the development of a polymerized rosin ester which can keep better adhesive property under different temperature conditions is urgently needed, so that the application range and value of the polymerized rosin ester are expanded, and the polymerized rosin ester has important economic value and research significance.
Disclosure of Invention
Aiming at the defects brought forward by the background technology, the invention provides a polymerized rosin mixed ester and a preparation method and application thereof, and the invention adds long-chain monohydric alcohol or dihydric alcohol in the reaction process of polymerized rosin and trihydric alcohol or tetrahydric alcohol to reduce the softening point and rigidity of resin, thereby increasing the compatibility of the resin and a matrix polymer under the low temperature condition, overcoming the limitation of the use temperature of the polymerized rosin ester, realizing that the polymerized rosin ester can keep better adhesive property under different temperature conditions, and further expanding the use range and value of the polymerized rosin ester.
In order to achieve the purpose, the invention adopts the following technical scheme:
a polymerized rosin mixed ester, the structural formula of which is shown in formula (I):
wherein R is H or the residue of an alcohol.
The invention also provides a preparation method of the polymerized rosin mixed ester, which comprises the following steps:
(1) crushing polymerized rosin, introducing inert gas, heating, and stirring until the polymerized rosin is molten to obtain a material 1;
(2) and (2) adding part of the composite catalyst into the material 1 obtained in the step (1), adding the mixed alcohol, preserving heat, heating, adding the rest of the composite catalyst, distilling under reduced pressure, adding an antioxidant, and cooling to obtain the polymerized rosin mixed ester.
Further, the polymerized rosin in the step (1) is at least one of polymerized rosin 140, polymerized rosin 115 and polymerized rosin 95; preferably, the polymerized rosin is polymerized rosin 140.
Further, the inert gas in the step (1) is at least one of nitrogen, argon and helium; preferably, the inert gas is nitrogen.
Further, the temperature in step (1) is raised to 210-220 ℃.
Further, the amount of the part of the composite catalyst in the step (2) is 50% of the total amount of the composite catalyst.
Further, the total amount of the composite catalyst in the step (2) is 0.2-2% of the mass of the polymerized rosin; preferably, the total amount of the composite catalyst is 0.3-1% of the mass of the polymerized rosin.
Further, the composite catalyst in the step (2) is composed of three types of substances, namely a phosphorus-containing compound, a sulfide and an aromatic hydrocarbon derivative; wherein the phosphorus-containing compound is at least one of phosphorus-containing inorganic acid, phosphorus-containing inorganic salt and phosphorus-containing organic salt; the sulfide is at least one of sulfur-containing inorganic acid, sulfur-containing inorganic salt and phenol sulfide; the aromatic hydrocarbon derivative is at least one of monocyclic aromatic hydrocarbon derivative and polycyclic aromatic hydrocarbon derivative.
In addition, the ratio of the phosphorus-containing compound to the sulfide to the aromatic hydrocarbon derivative in the composite catalyst is 2-6:2-4: 1; preferably, the ratio of the phosphorus-containing organic salt to the phenol sulfide to the polycyclic aromatic hydrocarbon derivative in the composite catalyst is 2-5:2-3: 1; more preferably, the ratio of the phosphorus-containing organic salt to the phenol sulfide to the polycyclic aromatic hydrocarbon derivative in the composite catalyst is 3:2: 1.
Further, the adding amount of the mixed alcohol in the step (2) is 13-23% of the mass of the polymerized rosin.
Further, the mixed alcohol in the step (2) comprises at least one of monohydric alcohol, dihydric alcohol, trihydric alcohol and tetrahydric alcohol; wherein, the monohydric alcohol is at least one of saturated straight chain alcohols with the carbon atom number being more than or equal to 10, and preferably the monohydric alcohol is dodecanol; the dihydric alcohol is at least one of ethylene glycol, diethylene glycol and triethylene glycol, preferably, the dihydric alcohol is diethylene glycol; the trihydric alcohol is at least one of glycerol, polyglycerol and trimethylolpropane, and preferably the trihydric alcohol is glycerol; the tetrahydric alcohol is at least one of pentaerythritol and dipentaerythritol, and preferably, the tetrahydric alcohol is pentaerythritol.
Further, the mixed alcohol in the step (2) is added dropwise at a constant speed, and the dropwise adding time is controlled to be 0.5-1 h.
Further, the heat preservation time in the step (2) is 0.5-1.5 h.
Further, the temperature rise mode in the step (2) is constant temperature rise, and the temperature rise time is controlled to be 1.5-2.5 h.
Further, the temperature in the step (2) is increased to 270-280 ℃.
Further, the pressure of the reduced pressure distillation in the step (2) is 1.3-2.6kPa, and the temperature is 250-260 ℃.
Further, the antioxidant in the step (2) is at least one of phosphonate, sulfo-hydroxy-methyl acid, paraformaldehyde, sulfide and hindered phenol; preferably, the antioxidant is a hindered phenol.
Further, the addition amount of the antioxidant in the step (2) is 0.05-1% of the mass of the polymerized rosin; preferably, the addition amount of the antioxidant is 1-3 per mill of the mass of the polymerized rosin.
The invention also provides application of the polymerized rosin mixed ester in printing ink, paint and adhesive.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a high-performance polymerized rosin mixed ester, which is prepared by polymerizing rosin as a raw material, is a natural renewable resource, has rich sources, is environment-friendly and clean, and is simple to prepare; the prepared polymerized rosin mixed ester can improve the adhesiveness and strength of a base material, is widely applied to industrial products such as printing ink, coating and the like, and can achieve an excellent bonding effect.
(2) The invention also provides a preparation method of the polymerized rosin mixed ester, and the resin with light color and moderate softening point is obtained by using the composite catalyst in the esterification process. The polymerized rosin mixed ester serving as a bonding agent is applied to industries such as printing ink, coating and the like under a higher temperature condition, has excellent bonding performance, and can be applied to adhesives under a low temperature condition to achieve the purpose of tackifying effect.
(3) In the preparation method, long-chain monohydric alcohol or dihydric alcohol is added to properly reduce the softening point and rigidity of the resin, so that the compatibility of the resin and a matrix polymer under a low-temperature condition is improved, the glass transition temperature of the polymer is effectively improved, the movement of a sub-chain in a high-frequency region and the movement of molecules in a low-frequency region are reduced, the resin is effectively dispersed into base materials such as an adhesive, the limitation of the use temperature of polymerized rosin ester is overcome, and the good bonding performance of the polymerized rosin ester can be kept under different temperature conditions.
(4) The composite catalyst used in the preparation method of the invention, wherein the phosphorus-containing compound is a high-efficiency esterification catalyst, can effectively reduce the reaction activation energy, overcomes the high steric hindrance effect of polymerized rosin, and realizes the effective esterification; the sulfide is an efficient disproportionation agent, can promote the disproportionated reaction of the polymerized rosin in the esterification process, not only increases the stability of the resin and prevents the resin from being oxidized in the high-temperature reaction process to deepen the color, but also effectively reduces the color of the resin; the aromatic hydrocarbon derivative is a high-efficiency light color agent, which can not only effectively prevent residual oxygen from oxidizing the resin, but also effectively reduce the oxidized anthraquinone chromogenic groups into colorless groups, thereby ensuring the color of the resin. The composite catalyst is added in two batches in equal amount to maintain the stability of catalyst concentration and the effectiveness of catalytic performance.
(5) The antioxidant is added into the polymerized rosin mixed ester at the later stage of preparation, and the antioxidant can prevent the oxidation of residual oxygen to the resin at the later stage of reaction and relieve the reaction of the residual oxygen with the oxygen in the later-stage storage process of the resin. The color of the product in the preparation process is guaranteed, and the performance change caused by oxidation of the product in the later storage process is prevented.
Drawings
FIG. 1 is an infrared spectrum of a mixed ester of polymerized rosin prepared in example 1 and a starting polymerized rosin, wherein 1 represents polymerized rosin 140; and 2 represents polymerized rosin mixed ester.
Detailed Description
For a better understanding of the present invention, the present invention is further described in conjunction with the following specific examples, wherein the terminology used in the examples is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention. The raw materials used in the present application are all common commercial products, and therefore the source thereof does not need to be specifically limited.
The structural formula of the high-performance polymerized rosin mixed ester prepared in the embodiment 1 of the invention is shown as the formula (I):
wherein R is H or the residue of an alcohol.
The polymerized rosin mixed ester of the present invention is a mixture of materials such as abietic acid, dimer abietic acid, and trimer abietic acid as a raw material polymerized rosin. In the industry, the main component of the polymerized rosin, namely dimer abietic acid, is used as a representative of polymerized rosin, so that the structural formula of the esterified product of the polymerized rosin is also shown as the formula (I) in the patent.
Basic embodiment
Different values of the parameters in the basic embodiment constitute different specific embodiments, for example: parameter A, B1、B2、C、D、T1、T2、t1、t2、t3As shown in Table 1, Table 2 shows the physical properties of the specific raw materials used and the polymerized rosin mixed ester produced.
A preparation method of polymerized rosin mixed ester comprises the following steps:
(1) adding crushed polymerized rosin with the mass of A into a 1000m L dry four-neck flask provided with a stirring rod, a water separator, a temperature sensor and a constant-pressure dropping funnel, introducing inert gas for protection, and heating to the temperature of T1Stirring until the mixture is molten;
(2) adding B into molten polymerized rosin1The mixed alcohol with the mass of C is dripped at constant speed for t1After the dripping is finished, heat preservation is carried out for t2Then raising the temperature to T at constant speed2Time of temperature rise t3And the residual mass is supplemented to be B2Composite catalyst, after reaction is completed, reducing pressureDistilling to remove unreacted raw materials and low molecular weight substances, adding antioxidant D, and cooling to obtain polymerized rosin mixed ester.
Comparative examples
The comparative examples are shown in tables 1 and 2, respectively, and differ from the basic examples in that the alcohol used is a single alcohol, which is pentaerythritol and glycerol, respectively.
Table 1:
table 2:
test experiments
The methods for the structural characterization and the determination of the related indexes of the polymerized rosin esters prepared in examples 1 to 18 of the present invention and comparative examples 1 to 2 are as follows:
infrared: measuring by FTIR-8400S Fourier transform infrared spectrometer (Shimadzu, Japan), measuring sample by KBr tablet pressing or liquid mold method, and measuring wave number range of 4000--1；
Color: referring to GB/T1722-1992, determination of the colors of varnish, varnish and diluent, in the present invention, the colors measured are all liquid colors (i.e., the Gardner color numbers of the resin or polymerized rosin dissolved in toluene of equal mass), wherein the Gardner color numbers of the polymerized rosin 140, the polymerized rosin 115 and the polymerized rosin 95 are all No. 8 colors, unless otherwise noted;
the initial adhesion is measured by a CZY-G intelligent electronic tensile testing machine (a Jinan Languan machine and an electronic machine) according to a testing method with reference to a Finat FTM-9L oop tack standard, and the method comprises the following specific steps of dissolving a certain proportion of matrix polymer, mineral oil and polymerized rosin mixed ester (or polymerized rosin pentaerythritol ester prepared in comparative example 1 or polymerized rosin glyceride prepared in comparative example 2) in a toluene solvent with the same mass, uniformly coating the solution on release paper, standing for 1 day to remove the solvent, preparing an adhesive tape with a coating of 25 mu m, placing the adhesive tape in different testing temperature conditions, testing in parallel for three times, and taking an average value, wherein the testing result is shown in Table 4;
softening point: the determination method is referred to GB/T8146-.
Table 3:
to confirm the properties of the polymerized rosin mixed esters produced, fourier transform infrared spectroscopy (FTIR) was used to characterize the resins, and the results of the tests are shown in fig. 1, along with comparative raw material polymerized rosin. Because of the structural similarity, we selected the polymerized rosin mixed ester prepared in example 1 and the starting polymerized rosin 140 for testing analysis. As can be seen from FIG. 1, the polymerized rosin was found to be located at 2652 and 2530cm-1The broad absorption peak of (A) disappears completely after esterification reaction, and the characteristic absorption peak of (B) is assigned to 1695cm-1Red shift to 1726cm characteristic absorption peak of ester group-1Meanwhile, a new esterified product which is assigned to 1610cm of esterified product appeared in the polymerized rosin mixed ester product-1、1106cm-1Characteristic absorption peaks at the points of et al. It can be clearly observed that the characteristic absorption peak type of the polymerized rosin is obviously changed after the esterification reaction, and the characteristic absorption peak positioned in a high field is obviously red-shifted, which shows that the mixed alcohol group connected in the esterification has the color-assisting effect on the polymerized rosin. The combination of the figures and data shows that the polymerized rosin actually reacts with the mixed alcohol to form the polymerized rosin shown in formula (I)And mixing the esters. Since the structure and characterization of the polymerized rosin esters of the other examples and comparative examples are similar to those of the polymerized rosin ester of example 1, they are not repeated herein.
According to the test results in Table 3, the method successfully synthesizes the high-performance polymerized rosin mixed ester with the color (liquid color) less than No. 6 and the softening point between 103 and 106.5 ℃.
In addition, the same amount of the polymerized rosin mixed ester prepared in example 1 and the same amount of the home-made common polymerized rosin ester (i.e., the polymerized rosin quaternary alcohol ester in comparative example 1 and the polymerized rosin glyceride in comparative example 2) were applied to the adhesive (formulated into an adhesive tape for initial adhesion test), and the test results under different temperature conditions are shown in table 4.
Table 4:
the resin with a certain proportion is applied to the adhesive, and tests show that the polymerized rosin mixed ester has good adhesive property and tackifying effect compared with common polymerized rosin ester although the adhesive property of the polymerized rosin mixed ester to a matrix polymer is weakened along with the reduction of temperature. The successful invention of the high-performance polymerized rosin mixed ester realizes that the polymerized rosin resin can keep better adhesive property under different temperature conditions, especially under low temperature conditions, expands the application range and is beneficial to the development of rosin deep processing and economic construction.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A polymerized rosin mixed ester, characterized in that the structural formula is shown as formula (I):
wherein R is H or the residue of an alcohol.
2. The method of preparing a mixed ester of polymerized rosin as claimed in claim 1, comprising the steps of:
(1) crushing polymerized rosin, introducing inert gas, heating, and stirring until the polymerized rosin is molten to obtain a material 1;
(2) and (2) adding part of the composite catalyst into the material 1 obtained in the step (1), adding the mixed alcohol, preserving heat, heating, adding the rest of the composite catalyst, distilling under reduced pressure, adding an antioxidant, and cooling to obtain the polymerized rosin mixed ester.
3. The method of claim 2, wherein: the polymerized rosin in the step (1) is at least one of polymerized rosin 140, polymerized rosin 115 and polymerized rosin 95.
4. The method of claim 2, wherein: the amount of the part of the composite catalyst in the step (2) is 50 percent of the total amount of the composite catalyst.
5. The method of claim 2, wherein: the total amount of the composite catalyst in the step (2) is 0.2-2% of the mass of the polymerized rosin.
6. The method of claim 2, wherein: the composite catalyst in the step (2) consists of three substances of a phosphorus-containing compound, a sulfide and an aromatic hydrocarbon derivative; wherein the phosphorus-containing compound is at least one of phosphorus-containing inorganic acid, phosphorus-containing inorganic salt and phosphorus-containing organic salt; the sulfide is at least one of sulfur-containing inorganic acid, sulfur-containing inorganic salt and phenol sulfide; the aromatic hydrocarbon derivative is at least one of monocyclic aromatic hydrocarbon derivative and polycyclic aromatic hydrocarbon derivative; in addition, the ratio of the phosphorus-containing compound to the sulfide to the aromatic derivative in the composite catalyst is 2-6:2-4: 1.
7. The method of claim 2, wherein: the mixed alcohol in the step (2) comprises at least one of monohydric alcohol, dihydric alcohol, trihydric alcohol and tetrahydric alcohol; wherein, the monohydric alcohol is at least one of saturated straight-chain alcohols with the carbon atom number more than or equal to 10; the dihydric alcohol is at least one of ethylene glycol, diethylene glycol and triethylene glycol; the trihydric alcohol is at least one of glycerol, polyglycerol and trimethylolpropane; the tetrahydric alcohol is at least one of pentaerythritol and dipentaerythritol.
8. The method of claim 2, wherein: in the step (2), the antioxidant is at least one of phosphonate, sulfo-hydroxy-methyl acid, paraformaldehyde, sulfide and hindered phenol.
9. The method of claim 2, wherein: the addition amount of the antioxidant in the step (2) is 0.05-1% of the mass of the polymerized rosin.
10. Use of a polymerized rosin mixed ester as claimed in any one of claims 1 to 9 in inks, coatings and adhesives.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112480823A (en) * | 2020-12-09 | 2021-03-12 | 山西省应用化学研究所(有限公司) | Modified rosin resin for offset ink and preparation method thereof |
| CN113045423A (en) * | 2021-03-16 | 2021-06-29 | 江西金安林产实业有限公司 | High-performance resin based on polymerized rosin group and preparation method and application thereof |
| CN111393996B (en) * | 2020-04-21 | 2022-02-15 | 广东科茂林产化工股份有限公司 | Polymerized rosin mixed ester and preparation method and application thereof |
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| CN113045423A (en) * | 2021-03-16 | 2021-06-29 | 江西金安林产实业有限公司 | High-performance resin based on polymerized rosin group and preparation method and application thereof |
| CN113045423B (en) * | 2021-03-16 | 2023-12-29 | 江西金安林产实业有限公司 | High-performance resin based on polymerized rosin base and preparation method and application thereof |
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