CN112322189A - Water-white heat-stable rosin resin and preparation method thereof - Google Patents
Water-white heat-stable rosin resin and preparation method thereof Download PDFInfo
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- CN112322189A CN112322189A CN202011307868.8A CN202011307868A CN112322189A CN 112322189 A CN112322189 A CN 112322189A CN 202011307868 A CN202011307868 A CN 202011307868A CN 112322189 A CN112322189 A CN 112322189A
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- rosin
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- water
- white heat
- rosin resin
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- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 title claims abstract description 77
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 title claims abstract description 77
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000011347 resin Substances 0.000 title claims abstract description 31
- 229920005989 resin Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000005886 esterification reaction Methods 0.000 claims abstract description 22
- 238000001256 steam distillation Methods 0.000 claims abstract description 16
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 238000004821 distillation Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 5
- 241000779819 Syncarpia glomulifera Species 0.000 claims description 16
- 239000001739 pinus spp. Substances 0.000 claims description 16
- 229940036248 turpentine Drugs 0.000 claims description 16
- 239000003921 oil Substances 0.000 claims description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000001293 FEMA 3089 Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000295 fuel oil Substances 0.000 claims description 5
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920005862 polyol Polymers 0.000 claims description 3
- 150000003077 polyols Chemical class 0.000 claims description 3
- 239000004250 tert-Butylhydroquinone Substances 0.000 claims description 3
- 235000019281 tert-butylhydroquinone Nutrition 0.000 claims description 3
- 238000005292 vacuum distillation Methods 0.000 claims 1
- 241000283986 Lepus Species 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007757 hot melt coating Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 239000000976 ink Substances 0.000 description 2
- 239000012939 laminating adhesive Substances 0.000 description 2
- -1 pentaerythritol ester Chemical class 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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; OIL DRYING AGENTS, i.e. 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a preparation method of water-white heat-stable rosin resin, which comprises the following steps: rosin is used as a raw material, after pretreatment, refined rosin is produced by using methods of steam distillation, reduced pressure steam distillation and reduced pressure rectification, then the refined rosin is used as a raw material, and esterification reaction is carried out by adding polyhydric alcohol, a catalyst and an antioxidant, and after the reaction is finished, reduced pressure distillation is carried out to obtain water white heat stable rosin resin. The invention adopts the combination of the high-efficiency catalyst and the antioxidant to carry out esterification reaction, improves the thermal stability and the weather resistance of the product, and has lighter color and better weather resistance compared with domestic similar products.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the field of deep processing of rosin, and relates to a method for preparing water-white-heat-stable rosin resin by using rosin as a raw material.
[ background of the invention ]
The rosin industry is one of four major industries in forestry, and the trade volume of rosin in China accounts for about 60% of the total world amount, which is called as the yang industry.
Due to the structural characteristics, the rosin has a plurality of excellent performances such as corrosion resistance, moisture resistance, insulation, adhesion, emulsification and the like, and is widely applied to industries such as printing ink, paint, adhesive, coating, welding aid and the like. However, the rosin has some instability, such as easy crystallization, easy oxidation and discoloration, low softening point, etc., so that the performance and application field of the rosin are limited to a certain extent. The esterification modification of rosin is one of the important ways. The water-white heat stable rosin resin is synthesized by esterification of modified rosin or light-colored rosin and polyhydric alcohol, and is prepared into irregular transparent flaky solid after vacuum treatment, and is mainly used for EVA hot melt adhesive, hot melt pressure sensitive adhesive, hot melt coating, phenolic varnish, structural adhesive, sealant, laminating adhesive, ink and the like.
At present, a plurality of water white rosin resin preparation technologies exist, but the color of the domestic water white rosin resin like product is more than or equal to 100 hassen color number, the heat stability (4 hours at 180 ℃) of the product is less than or equal to 350 color number, the color of the product exposed in the air for 6 months is more than or equal to 100 hassen color number, and the problems of deep coloring, poor weather resistance and the like exist. Therefore, how to develop a new technology and solve the above technical problems becomes a new research trend.
[ summary of the invention ]
The invention provides water-white heat-stable rosin resin and a preparation method thereof, and aims to solve the problems of high cost, energy conservation, consumption reduction, poor quality and the like in the preparation of the water-white rosin resin in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a preparation method of water-white heat-stable rosin resin comprises the following steps: rosin is used as a raw material, after pretreatment, refined rosin is produced by using methods of steam distillation, reduced pressure steam distillation and reduced pressure rectification, then the refined rosin is used as a raw material, and esterification reaction is carried out by adding polyhydric alcohol, a catalyst and an antioxidant, and after the reaction is finished, reduced pressure distillation is carried out to obtain water white heat stable rosin resin.
Further, the preparation method of the water white heat stable rosin resin comprises the following steps:
(1) taking rosin as a raw material, adding the medium oil in turpentine, dissolving and filtering;
(2) separating out top-grade turpentine oil at the temperature of below 150 ℃ by steam distillation;
(3) distilling under reduced pressure steam at 150-170 deg.C to separate out medium oil and heavy oil;
(4) rectifying under reduced pressure at 260 ℃ and 280 ℃ to produce refined rosin;
(5) during esterification reaction, refined rosin is taken as a raw material, a catalyst, an antioxidant and polyol are added, and esterification reaction is carried out for 5-6h at the reaction temperature of 250-270 ℃ and the stirring speed of 50-80 r/min;
(6) after the esterification reaction, reduced pressure distillation is carried out, the temperature is 250-270 ℃, the time is 2-3h, the vacuum degree is 10-20mmHg, and the water-white heat stable rosin resin is produced.
Further, the mass of oil in the turpentine oil added in the step (1) accounts for 5% -10% of the turpentine.
Further, the degree of vacuum of the reduced pressure steam distillation in the step (3) is 20-30 mmHg.
Further, the vacuum degree of the vacuum rectification in the step (4) is 10-20 mmHg.
Further, the catalyst in the step (5) comprises one or more of ZnO and MgO.
Furthermore, the adding mass of the catalyst is 0.14-0.16% of the refined rosin.
Further, the antioxidant in step (5) comprises one or more of TBHQ, BHT and BHA.
Further, the added mass of the antioxidant is 0.01-0.02% of that of the refined rosin.
Further, the polyhydric alcohol in the step (5) comprises one or more of glycerol and pentaerythritol.
The invention has the following beneficial effects:
(1) the rosin is used as a raw material for production, so that the step of melting rosin which generally uses rosin as a raw material is reduced, the energy consumption is saved, and the energy conservation and emission reduction are realized.
(2) The invention relates to a high-yield rosin preparation technology, which improves the quality and yield of rosin.
(3) The invention adopts the combination of the high-efficiency catalyst and the antioxidant to carry out esterification reaction, improves the thermal stability and the weather resistance of the product, and improves and stabilizes the whiteness of the product.
(4) The color of the obtained water white heat stable rosin resin product is less than or equal to 49 hassen color numbers, and compared with the color of domestic similar products which is 134 hassen color numbers, the color is lighter; the heat stability (4 hours at 180 ℃) of the water white heat-stable rosin resin product is less than or equal to 194 hasen color numbers, and the heat stability is better than that of 320 hasen color numbers of domestic similar products (4 hours at 180 ℃); the color of the product of the water-white heat-stable rosin resin product exposed in the air for 6 months is less than or equal to 75 hasen color number, and compared with the domestic similar product with the color of 181 hasen color number, the color change is smaller, which indicates that the weather resistance of the product is better.
(5) The product of the invention is widely used for EVA hot melt adhesive, hot melt pressure sensitive adhesive, hot melt coating, phenolic varnish, structural adhesive, sealant, laminating adhesive, printing ink and the like, and has good economic and social benefits.
[ detailed description ] embodiments
In order to facilitate a better understanding of the invention, the following examples are given to illustrate, but not to limit the scope of the invention.
Example 1
A preparation method of water-white heat-stable rosin resin comprises the following steps:
(1) weighing 10000kg of rosin in a dissolving tank, adding 600kg of medium oil in turpentine, heating, stirring, fully dissolving, filtering the dissolved rosin, and removing mechanical impurities;
(2) putting the turpentine liquid into a distillation kettle for steam distillation at the distillation temperature of 140 ℃, and separating out high-grade turpentine;
(3) raising the temperature to 170 ℃, performing reduced pressure steam distillation with the vacuum degree of 20mmHg, and separating out medium oil and heavy oil in the turpentine oil;
(4) rectifying under reduced pressure at 270 deg.C and vacuum degree of 5mmHg to obtain refined rosin;
(5) directly putting the obtained refined rosin into an esterification reaction kettle, adding 1kg of catalytic ZnO11kg, 1kg of antioxidant TBHQ and 930kg of pentaerythritol, stirring at 270 ℃ at a speed of 50r/min for 8h, and carrying out esterification reaction;
(6) after the esterification reaction, reduced pressure distillation is carried out, the temperature is 270 ℃, the time is 3 hours, the vacuum degree is 10mmHg, and 7700kg of water white heat stable rosin pentaerythritol ester is produced.
Example 2
A preparation method of water-white heat-stable rosin resin comprises the following steps:
(1) weighing 13000kg of turpentine in a dissolving tank, adding 1200kg of middle oil in turpentine, heating, stirring, fully dissolving, filtering the dissolved turpentine, and removing mechanical impurities;
(2) putting the turpentine liquid into a distillation kettle for steam distillation at the distillation temperature of 150 ℃, and separating out high-grade turpentine oil;
(3) raising the temperature to 180 ℃, performing reduced pressure steam distillation with the vacuum degree of 15mmHg, and separating out medium oil and heavy oil in the turpentine oil;
(4) rectifying under reduced pressure at 250 deg.C and 10mmHg to obtain refined rosin;
(5) directly putting the obtained refined rosin into an esterification reaction kettle, adding 15kg of catalyst, 2kg of antioxidant BHA and 1200kg of pentaerythritol, stirring at the temperature of 270 ℃ at the speed of 80r/min for 8 hours, and carrying out esterification reaction;
(6) after the esterification reaction, reduced pressure distillation is carried out, the temperature is 270 ℃, the time is 3 hours, the vacuum degree is 15mmHg, and the white and heat stable rosin pentaerythritol ester with water yield is 10020 kg.
Example 2
A preparation method of water-white heat-stable rosin resin comprises the following steps:
(1) 13000kg of turpentine is weighed into a dissolving tank, 1000kg of middle oil in turpentine is added, the temperature is raised, stirring is carried out, and the turpentine is fully dissolved. Filtering the dissolved rosin to remove mechanical impurities;
(2) putting the turpentine liquid into a distillation kettle for steam distillation at the distillation temperature of 150 ℃, and separating out high-grade turpentine oil;
(3) raising the temperature to 180 ℃, performing reduced pressure steam distillation with the vacuum degree of 30mmHg, and separating out medium oil and heavy oil in the turpentine oil;
(4) rectifying under reduced pressure at 270 deg.C and 15mmHg to obtain refined rosin;
(5) directly adding the obtained refined rosin into an esterification reaction kettle, adding 16kg of catalyst, 1.5kg of antioxidant BHT and 1200kg of glycerol, stirring at 270 ℃ at a speed of 70r/min for 8h, and carrying out esterification reaction;
(6) after the esterification reaction, reduced pressure distillation is carried out, the temperature is 270 ℃, the time is 3 hours, the vacuum degree is 20mmHg, and 9980kg of water-white heat-stable rosin glyceride is produced.
Comparative example 1
Domestic water white rosin resin similar products.
The performance indexes of the water-white rosin resins of examples 1 to 3 and comparative example 1 were examined, and each performance index was measured in parallel three times. Wherein the color is detected by a hasen colorimetric method. The results of the performance index measurements are shown in the following table.
From the above table, it can be seen that: the color of the obtained water white heat stable rosin resin product is less than or equal to 49 hassen color numbers, and compared with the color of domestic similar products which is 134 hassen color numbers, the color is lighter; the heat stability (4 hours at 180 ℃) of the water white heat-stable rosin resin product is less than or equal to 194 hasen color numbers, and the heat stability is better than that of 320 hasen color numbers of domestic similar products (4 hours at 180 ℃); the color of the product of the water-white heat-stable rosin resin product exposed in the air for 6 months is less than or equal to 75 hasen color number, and compared with the domestic similar product with the color of 181 hasen color number, the color change is smaller, which indicates that the weather resistance of the product is better.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The preparation method of the water-white heat-stable rosin resin is characterized by comprising the following steps: rosin is used as a raw material, after pretreatment, refined rosin is produced by using methods of steam distillation, reduced pressure steam distillation and reduced pressure rectification, then the refined rosin is used as a raw material, and esterification reaction is carried out by adding polyhydric alcohol, a catalyst and an antioxidant, and after the reaction is finished, reduced pressure distillation is carried out to obtain water white heat stable rosin resin.
2. The method of making a water white heat stable rosin resin of claim 1, comprising the steps of:
(1) taking rosin as a raw material, adding the medium oil in turpentine, dissolving and filtering;
(2) separating out top-grade turpentine oil at the temperature of below 150 ℃ by steam distillation;
(3) distilling under reduced pressure steam at 150-170 deg.C to separate out medium oil and heavy oil;
(4) rectifying under reduced pressure at 260 ℃ and 280 ℃ to produce refined rosin;
(5) during esterification reaction, refined rosin is taken as a raw material, a catalyst, an antioxidant and polyol are added, and esterification reaction is carried out for 5-6h at the reaction temperature of 250-270 ℃ and the stirring speed of 50-80 r/min;
(6) after the esterification reaction, reduced pressure distillation is carried out, the temperature is 250-270 ℃, the time is 2-3h, the vacuum degree is 10-20mmHg, and the water-white heat stable rosin resin is produced.
3. The method of claim 1, wherein the amount of oil added to the turpentine in step (1) is 5-10% of the weight of the turpentine.
4. The method of claim 1, wherein the vacuum of the reduced pressure steam distillation in step (3) is 20-30 mmHg.
5. The method of claim 1, wherein the vacuum of the vacuum distillation in step (4) is 10-20 mmHg.
6. The method of claim 1, wherein the catalyst in step (5) comprises one or more of ZnO and MgO.
7. The method of preparing a water-white heat stable rosin resin according to claim 6, wherein the mass of the catalyst added is 0.14-0.16% of the mass of the refined rosin.
8. The method of claim 1, wherein the antioxidant of step (5) comprises one or more of TBHQ, BHT, BHA.
9. The method of preparing a water-white heat stable rosin resin according to claim 8, wherein the antioxidant is added in an amount of 0.01-0.02% by mass based on the refined rosin.
10. The method of claim 1, wherein the polyol of step (5) comprises one or more of glycerol and pentaerythritol.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011307868.8A CN112322189A (en) | 2020-11-19 | 2020-11-19 | Water-white heat-stable rosin resin and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011307868.8A CN112322189A (en) | 2020-11-19 | 2020-11-19 | Water-white heat-stable rosin resin and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231043A (en) * | 2021-12-10 | 2022-03-25 | 广西壮族自治区林业科学研究院 | Preparation process and application of light-color anti-tear rosin resin |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63186783A (en) * | 1987-01-29 | 1988-08-02 | Arakawa Chem Ind Co Ltd | Preparation of rosin ester |
| CN1772829A (en) * | 2005-10-28 | 2006-05-17 | 中国林业科学研究院林产化学工业研究所 | High stability color-less rosin pentaerythrite ester and its prepn |
| CN102408833A (en) * | 2011-07-25 | 2012-04-11 | 广西北流市兆周林产有限公司 | Preparation method of colorless pentalyn |
| CN103059734A (en) * | 2012-12-26 | 2013-04-24 | 广西北流市鸿锋松脂有限公司 | Preparation method for fumaric acid modified rosin pentaerythritol ester |
| CN103965787A (en) * | 2014-05-08 | 2014-08-06 | 江西殷莱特化工有限公司 | Method for rapidly producing rosin resin |
| CN106752966A (en) * | 2016-12-20 | 2017-05-31 | 广西北流市兆周林产有限公司 | A kind of production method of water-soluble rosin resin |
| CN106928853A (en) * | 2017-04-27 | 2017-07-07 | 德庆明亮树脂有限公司 | A kind of production method of water-white tackifying resins |
| CN111825846A (en) * | 2020-08-12 | 2020-10-27 | 广西壮族自治区林业科学研究院 | Light-colored high-stability water-soluble rosin resin and preparation method thereof |
-
2020
- 2020-11-19 CN CN202011307868.8A patent/CN112322189A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63186783A (en) * | 1987-01-29 | 1988-08-02 | Arakawa Chem Ind Co Ltd | Preparation of rosin ester |
| CN1772829A (en) * | 2005-10-28 | 2006-05-17 | 中国林业科学研究院林产化学工业研究所 | High stability color-less rosin pentaerythrite ester and its prepn |
| CN102408833A (en) * | 2011-07-25 | 2012-04-11 | 广西北流市兆周林产有限公司 | Preparation method of colorless pentalyn |
| CN103059734A (en) * | 2012-12-26 | 2013-04-24 | 广西北流市鸿锋松脂有限公司 | Preparation method for fumaric acid modified rosin pentaerythritol ester |
| CN103965787A (en) * | 2014-05-08 | 2014-08-06 | 江西殷莱特化工有限公司 | Method for rapidly producing rosin resin |
| CN106752966A (en) * | 2016-12-20 | 2017-05-31 | 广西北流市兆周林产有限公司 | A kind of production method of water-soluble rosin resin |
| CN106928853A (en) * | 2017-04-27 | 2017-07-07 | 德庆明亮树脂有限公司 | A kind of production method of water-white tackifying resins |
| CN111825846A (en) * | 2020-08-12 | 2020-10-27 | 广西壮族自治区林业科学研究院 | Light-colored high-stability water-soluble rosin resin and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| MIGUEL LADERO等: "Phenomenological kinetic modelling of the esterification of rosin and polyols", 《CHEMICAL ENGINEERING JOURNAL》 * |
| 谢刚 等: "精制松香酯化法的无色松香树脂生产线设计", 《应用化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114231043A (en) * | 2021-12-10 | 2022-03-25 | 广西壮族自治区林业科学研究院 | Preparation process and application of light-color anti-tear rosin resin |
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Application publication date: 20210205 |