CN102229685A - Polyvinyl alcohol and use of polyvinyl alcohol as dispersant - Google Patents
Polyvinyl alcohol and use of polyvinyl alcohol as dispersant Download PDFInfo
- Publication number
- CN102229685A CN102229685A CN201110118076.0A CN201110118076A CN102229685A CN 102229685 A CN102229685 A CN 102229685A CN 201110118076 A CN201110118076 A CN 201110118076A CN 102229685 A CN102229685 A CN 102229685A
- Authority
- CN
- China
- Prior art keywords
- polyvinyl alcohol
- mass parts
- polyvinyl acetate
- methanol solution
- polyvinyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004372 Polyvinyl alcohol Substances 0.000 title claims abstract description 54
- 229920002451 polyvinyl alcohol Polymers 0.000 title claims abstract description 54
- 239000002270 dispersing agent Substances 0.000 title 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 213
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 58
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 18
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003999 initiator Substances 0.000 claims abstract description 8
- 239000000178 monomer Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 230000009466 transformation Effects 0.000 claims description 10
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical group CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- 239000008367 deionised water Substances 0.000 abstract description 15
- 229910021641 deionized water Inorganic materials 0.000 abstract description 15
- 238000006136 alcoholysis reaction Methods 0.000 abstract description 13
- 238000003756 stirring Methods 0.000 abstract description 13
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- ZCHPKWUIAASXPV-UHFFFAOYSA-N acetic acid;methanol Chemical compound OC.CC(O)=O ZCHPKWUIAASXPV-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QLVHFTGKDGTJDH-UHFFFAOYSA-N acetic acid;ethenyl acetate Chemical compound CC(O)=O.CC(=O)OC=C QLVHFTGKDGTJDH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a polyvinyl alcohol. The polyvinyl alcohol is prepared by the following method of: reacting 50 to 80 mass parts of vinyl acetate monomer, 15 to 48 mass parts of methanol solvent, 2 to 5 mass parts of acrylamide or acrylic acid monomer and 0.04 to 0.08 mass part of initiator for 3 to 6 hours at the temperature of between 60 and 65 DEG C to obtain reaction solution containing polyvinyl acetate; and adding methanol into the reaction solution containing the polyvinyl acetate to prepare methanol solution of the polyvinyl acetate, reacting 60 to 97 mass parts of methanol solution of the polyvinyl acetate and 3 to 40 mass parts of catalyst for 20 to 30 minutes at the temperature of between 50 and 55 DEG C, and washing and drying the obtained product to obtain the polyvinyl alcohol. When the alcoholysis degree of the polyvinyl alcohol prepared by the method is about 88 percent and the polyvinyl alcohol is put into deionized water in an amount which is 100 times mass of the polyvinyl alcohol at the temperature of 85 DEG C, the polyvinyl alcohol is totally dissolved in 7 to 35 minutes with stirring, but the current common polyvinyl alcohol can be totally dissolved in water in over 50 minutes under the same conditions.
Description
One, technical field
The present invention relates to a kind of preparation of polyvinyl alcohol dispersion agent, belong to the field of polymer materials modification, lay the foundation for improving the water-soluble of polyvinyl alcohol.
Two, background technology
Polyvinyl alcohol is a kind of important macromolecular material, has widely in directions such as fiber, plastic workings and uses.One of them important application direction is that the dispersion agent when synthetic uses the relevant more (EP385734-A of patent as polymkeric substance; US5070134-A; US5110856-A; BR8605261-A; EP385734-B1; DE69011157-E; US4755538-A; KR9302755-B).But the prepared polyvinyl alcohol of ordinary method required dissolution time when using as dispersion agent is longer, as in cinnamic suspension polymerization, the mass ratio of the relative deionized water of polyvinyl alcohol is 5% o'clock, need be at 85 ℃, and under the band condition of stirring, could dissolve fully more than 50 minutes, long dissolution time has increased the time cost of producing.So develop easily water-soluble polyvinyl alcohol dispersion agent, will be an of great value achievement.
Three, summary of the invention
The long characteristics of dissolution time when the objective of the invention is to use as dispersion agent at polyvinyl alcohol change the ordered structure of polyvinyl alcohol by copolymerization, prepare water-soluble better, the polyvinyl alcohol dispersion agent that dissolution time is short.
The technical solution used in the present invention is:
A kind of polyvinyl alcohol, described polyvinyl alcohol prepares by the following method:
(1) with vinyl acetate monomer 50-80 mass parts, solvent methanol 15-48 mass parts, acrylamide or Acrylic Acid Monomer 2-5 mass parts, initiator 0.04-0.08 mass parts were reacted 3-6 hour under 60-65 ℃ of temperature, made the reaction solution that contains polyvinyl acetate;
(2) reaction solution that contains polyvinyl acetate that obtains of step (1) calculates polymerisation conversion according to weighting method, calculate the Theoretical Mass of polyvinyl acetate again according to transformation efficiency, add methyl alcohol then and be made into the methanol solution of polyvinyl acetate, the described reaction solution that contains polyvinyl acetate mainly is made up of product polyvinyl acetate and former solvent methanol, therefore after adding methyl alcohol again this moment, the methanol solution that is polyvinyl acetate that obtains, the methanol solution of described polyvinyl acetate is that the Theoretical Mass mark of polyvinyl acetate is 30% methanol solution, press the methanol solution 60-97 mass parts of polyvinyl acetate, catalyzer 3-40 mass parts, 50-55 ℃ was reacted 20～30 minutes down, the products therefrom washing, oven dry promptly makes described polyvinyl alcohol, and described catalyzer is the methanol solution of the potassium hydroxide of the methanol solution of sodium hydroxide of 0.1g-0.2/ml or 0.1-0.2g/ml.Product promptly gets the finished product with deionized water wash, oven dry.
Described initiator is preferably Diisopropyl azodicarboxylate.
Described catalyzer is preferably the methanol solution of the potassium hydroxide of the methanol solution of sodium hydroxide of 0.1g/ml or 0.1g/ml.
The present invention also provides the preparation method of described polyvinyl alcohol, and described method is:
(1) with vinyl acetate monomer 50-80 mass parts, solvent methanol 15-48 mass parts, acrylamide or Acrylic Acid Monomer 2-5 mass parts, initiator 0.04-0.08 mass parts were reacted 3-6 hour under 60-65 ℃ of temperature, made the reaction solution that contains polyvinyl acetate;
(2) reaction solution that contains polyvinyl acetate that obtains of step (1) calculates polymerisation conversion according to weighting method, calculate the Theoretical Mass of polyvinyl acetate again according to transformation efficiency, add methyl alcohol then and be made into the methanol solution of polyvinyl acetate, the methanol solution of described polyvinyl acetate is that the Theoretical Mass mark of polyvinyl acetate is 30% methanol solution, press the methanol solution 60-97 mass parts of polyvinyl acetate, catalyzer 3-40 mass parts, 50 ℃ down reaction made described polyvinyl alcohol in 20 minutes, described catalyzer is the methanol solution of the potassium hydroxide of the methanol solution of sodium hydroxide of 0.1g/ml or 0.1g/ml.
Raw acetic acid vinyl acetate monomer 50-80 mass parts in the step of the present invention (1), solvent methanol 15-48 mass parts, acrylamide or Acrylic Acid Monomer 2-5 mass parts, in the initiator 0.04-0.08 mass parts, the total mass umber of preferred vinyl acetate monomer, solvent methanol and acrylamide or Acrylic Acid Monomer is 100 mass parts.
The methanol solution 60-97 mass parts of the raw material polyvinyl acetate in the step of the present invention (2), catalyzer 3-40 mass parts, preferably the total mass mark of all raw materials is 100 mass parts.
Polyvinyl alcohol provided by the invention can be used as dispersion agent, particularly uses as easily water-soluble dispersion agent.
The present invention has following advantage:
1, prepares polyvinyl acetate by modification by copolymerization earlier, carry out alcoholysis again and obtain easy high water-soluble polyvinyl alcohol, have novelty.
2, raw material is easy to get, and method is simple, and cost is low, is beneficial to the realization industrialization.
The polyvinyl alcohol of the inventive method preparation, during its alcoholysis degree 88% left and right sides, place the deionized water of 100 times of quality under 85 ℃ of conditions, dissolving fully in 7-35 minute under the band condition of stirring, and polyvinyl alcohol the same terms commonly used at present need down could be water-soluble fully more than 50 minutes.Dissolution time is saved in water-soluble significantly raising, has reduced production cost.
Four, embodiment
The present invention will be further described with specific embodiment below, but protection scope of the present invention is not limited thereto.
Embodiment 1:
With vinyl acetate monomer 80g, methyl alcohol 18g, Diisopropyl azodicarboxylate 0.08g, acrylamide 2g adds reaction flask jointly, be reflected in the reactor that is equipped with thermometer, agitator and reflux exchanger and carry out, heating in water bath to 65 ℃, reacted 4 hours, it is 94% that the product that takes a morsel calculates polymerisation conversion according to weighting method, calculating the polyvinyl acetate Theoretical Mass according to transformation efficiency again is 77g, and be that 30g/70g adds methyl alcohol according to polyvinyl acetate than methyl alcohol, be mixed with the 30wt% polyvinyl acetate methanol solution.Get the methanol solution 95g of the polyvinyl acetate of 30wt% concentration, concentration is sodium hydroxide/methanol solution 5g of 0.1g/ml, stirs, and 50 ℃ were reacted 20 minutes down, alcoholysis degree is 88 modified polyvinyl alcohol, product promptly gets the finished product with deionized water wash, oven dry.Get 1g polyvinyl alcohol product and under 85 ℃, place the 100g deionized water, the dissolving fully in following 35 minutes of band condition of stirring.Measure the alcoholysis degree of polyvinyl alcohol according to State Standard of the People's Republic of China (GB12010.5-89).
Comparative example
Dispersion agent commonly used in the experiment is polyvinyl alcohol 1750 ± 50 (chemical pure is available from the strong Hue reagent in Shanghai company limited), gets 1g and place the 100g deionized water under 85 ℃, the dissolving fully in following 55 minutes of band condition of stirring.
Embodiment 2:
With vinyl acetate monomer 75g, methyl alcohol 20g, Diisopropyl azodicarboxylate 0.08g, acrylamide 5g adds reaction flask jointly, be reflected in the reactor that is equipped with thermometer, agitator and reflux exchanger and carry out, heating in water bath to 65 ℃, reacted 4 hours, it is 95% that the product that takes a morsel calculates polymerisation conversion according to weighting method, calculating the polyvinyl acetate Theoretical Mass according to transformation efficiency again is 76g, and be that 30g/70g adds an amount of methyl alcohol according to polyvinyl acetate than methyl alcohol, be mixed with the 30wt% polyvinyl acetate methanol solution.Get the methanol solution 95g of the polyvinyl acetate of 30wt% concentration, concentration is sodium hydroxide/methanol solution 5g of 0.15g/ml, stir, 50 ℃ down reaction 30 minutes alcoholysis degree is 89 modified polyvinyl alcohol, product promptly gets the finished product with deionized water wash, oven dry.Get 1g polyvinyl alcohol product and under 85 ℃, place the 100g deionized water, the dissolving fully in following 30 minutes of band condition of stirring.Measure the alcoholysis degree of polyvinyl alcohol according to State Standard of the People's Republic of China (GB12010.5-89).
Embodiment 3:
With vinyl acetate monomer 50g, methyl alcohol 45g, Diisopropyl azodicarboxylate 0.04g, vinylformic acid 5g adds reaction flask jointly, is reflected in the reactor that is equipped with thermometer, agitator and reflux exchanger to carry out, and heating in water bath to 60 ℃ reacted 6 hours.It is 92% that the product that takes a morsel calculates polymerisation conversion according to weighting method, Theoretical Mass according to transformation efficiency calculating polyvinyl acetate is 50g again, and be that 30g/70g adds an amount of methyl alcohol according to polyvinyl acetate than methyl alcohol, be mixed with the 30wt% polyvinyl acetate methanol solution.Get the methanol solution 63g of the polyvinyl acetate of 30wt% concentration, concentration is potassium hydroxide/methanol solution 37g of 0.1g/ml, stirs, and 50 ℃ were reacted 20 minutes down, alcoholysis degree is 88 modified polyvinyl alcohol, product promptly gets the finished product with deionized water wash, oven dry.Get 1g modified polyvinyl alcohol product in the deionized water of 90 ℃ of 100g, dissolving fully in 7 minutes.Measure the alcoholysis degree of polyvinyl alcohol according to State Standard of the People's Republic of China (GB 12010.5-89).
Embodiment 4:
With vinyl acetate monomer 75g, methyl alcohol 20g, Diisopropyl azodicarboxylate 0.06g, vinylformic acid 5g adds reaction flask jointly, is reflected in the reactor that is equipped with thermometer, agitator and reflux exchanger to carry out, and heating in water bath to 63 ℃ reacted 5 hours.It is 94% that the product that takes a morsel calculates polymerisation conversion according to weighting method, calculating the polyvinyl acetate Theoretical Mass according to transformation efficiency again is 75g, and be that 30g/70g adds an amount of methyl alcohol according to polyvinyl acetate than methyl alcohol, be mixed with the methanol solution of 30wt% polyvinyl acetate.Get the methanol solution 97g of the polyvinyl acetate of 30wt% concentration, concentration is potassium hydroxide/methanol solution 3g of 0.1g/ml, stirs, and 50 ℃ were reacted 20 minutes down, alcoholysis degree is 88 modified polyvinyl alcohol, product promptly gets the finished product with deionized water wash, oven dry.Get 1g polyvinyl alcohol product and under 85 ℃, place the 100g deionized water, the dissolving fully in following 12 minutes of band condition of stirring.Measure the alcoholysis degree of polyvinyl alcohol according to State Standard of the People's Republic of China (GB12010.5-89).
Embodiment 5:
With vinyl acetate monomer 50g, methyl alcohol 48g, Diisopropyl azodicarboxylate 0.06g, vinylformic acid 2g adds reaction flask jointly, reacts under the nitrogen protection.Be reflected in the reactor that is equipped with thermometer, agitator and reflux exchanger and carry out, heating in water bath to 65 ℃ reacted 3 hours, and product is a polyvinyl acetate, the detection reaction transformation efficiency; It is 95% that the product that takes a morsel calculates polymerisation conversion according to weighting method, calculating the polyvinyl acetate Theoretical Mass according to transformation efficiency again is 49g, and be that 30g/70g adds an amount of methyl alcohol according to polyvinyl acetate than methyl alcohol, be mixed with the methanol solution of 30wt% polyvinylacetate.Get the methanol solution 60g of the polyvinyl acetate of 30wt% concentration, concentration is sodium hydroxide/methanol solution 40g of 0.2g/ml, stirs, and 55 ℃ were reacted 20 minutes down, alcoholysis degree is 89 polyvinyl alcohol, product promptly gets the finished product with deionized water wash, oven dry.Get 1g polyvinyl alcohol product and under 85 ℃, place the 100g deionized water, the dissolving fully in following 15 minutes of band condition of stirring.Measure the alcoholysis degree of polyvinyl alcohol according to State Standard of the People's Republic of China (GB 12010.5-89).
Claims (6)
1. polyvinyl alcohol is characterized in that described polyvinyl alcohol prepares by the following method:
(1) with vinyl acetate monomer 50-80 mass parts, solvent methanol 15-48 mass parts, acrylamide or Acrylic Acid Monomer 2-5 mass parts, initiator 0.04-0.08 mass parts were reacted 3-6 hour under 60-65 ℃ of temperature, made the reaction solution that contains polyvinyl acetate;
(2) reaction solution that contains polyvinyl acetate that obtains of step (1) calculates polymerisation conversion according to weighting method, calculate the Theoretical Mass of polyvinyl acetate in the described reaction solution again according to transformation efficiency, add methyl alcohol then and be made into the methanol solution of polyvinyl acetate, the methanol solution of described polyvinyl acetate is that the Theoretical Mass mark of polyvinyl acetate is 30% solution, press the methanol solution 60-97 mass parts of polyvinyl acetate, catalyzer 3-40 mass parts, 50-55 ℃ was reacted 20～30 minutes down, the products therefrom washing, oven dry promptly makes described polyvinyl alcohol, and described catalyzer is the methanol solution of the potassium hydroxide of the methanol solution of sodium hydroxide of 0.1-0.2g/ml or 0.1-0.2g/ml.
2. polyvinyl alcohol as claimed in claim 1 is characterized in that described initiator is a Diisopropyl azodicarboxylate.
3. polyvinyl alcohol as claimed in claim 1 is characterized in that described catalyzer is the methanol solution of the potassium hydroxide of the methanol solution of sodium hydroxide of 0.1g/ml or 0.1g/ml.
4. the preparation method of polyvinyl alcohol as claimed in claim 1 is characterized in that described method is:
(1) with vinyl acetate monomer 50-80 mass parts, solvent methanol 15-48 mass parts, acrylamide or Acrylic Acid Monomer 2-5 mass parts, initiator 0.04-0.08 mass parts were reacted 3-6 hour under 60-65 ℃ of temperature, made the reaction solution that contains polyvinyl acetate;
(2) reaction solution that contains polyvinyl acetate that obtains of step (1) calculates polymerisation conversion according to weighting method, calculate the Theoretical Mass of polyvinyl acetate in the described reaction solution again according to transformation efficiency, add methyl alcohol then and be made into the methanol solution of polyvinyl acetate, the methanol solution of described polyvinyl acetate is that the Theoretical Mass mark of polyvinyl acetate is 30% solution, press the methanol solution 60-97 mass parts of polyvinyl acetate, catalyzer 3-40 mass parts, 50 ℃ were reacted 20 minutes down, the products therefrom washing, oven dry promptly makes described polyvinyl alcohol, and described catalyzer is the methanol solution of the potassium hydroxide of the methanol solution of sodium hydroxide of 0.1g/ml or 0.1g/ml.
5. as of the application of the described polyvinyl alcohol of one of claim 1～3 as dispersion agent.
6. application as claimed in claim 5 is characterized in that described polyvinyl alcohol is as the easily application of water-soluble dispersion agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110118076.0A CN102229685A (en) | 2011-05-09 | 2011-05-09 | Polyvinyl alcohol and use of polyvinyl alcohol as dispersant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110118076.0A CN102229685A (en) | 2011-05-09 | 2011-05-09 | Polyvinyl alcohol and use of polyvinyl alcohol as dispersant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102229685A true CN102229685A (en) | 2011-11-02 |
Family
ID=44842298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110118076.0A Pending CN102229685A (en) | 2011-05-09 | 2011-05-09 | Polyvinyl alcohol and use of polyvinyl alcohol as dispersant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102229685A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746462A (en) * | 2012-07-19 | 2012-10-24 | 安徽皖维高新材料股份有限公司 | Method for preparing water-soluble polyvinyl acetate (PVA) resin through vinyl acetate-acrylic acid copolymerization |
| CN103008005A (en) * | 2012-12-14 | 2013-04-03 | 何林 | Method for preparing PVA (Polyvinyl Alcohol) by catalyzing polyvinyl acetate for controlled alcoholysis |
| CN104497192A (en) * | 2014-12-12 | 2015-04-08 | 安徽皖维高新材料股份有限公司 | Preparation method capable of rapidly dissolving PVA resin |
| CN104558319A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工集团公司 | Method for improving forming of low-viscosity polyvinyl alcohol |
| CN109021685A (en) * | 2018-09-21 | 2018-12-18 | 楼乐超 | A kind of hydrophobicity fixation ink and its preparation process |
| CN111636242A (en) * | 2020-04-17 | 2020-09-08 | 仙鹤股份有限公司 | Micro-coating sublimation thermal transfer paper and preparation method thereof |
| US10766983B2 (en) | 2015-03-05 | 2020-09-08 | Sekisui Specialty Chemicals America, Llc | PVOH dispersant for VCM polymerization |
| CN114014969A (en) * | 2021-11-15 | 2022-02-08 | 上海华峰新材料研发科技有限公司 | Water-soluble polymer and preparation method and application thereof |
| CN115991845A (en) * | 2021-10-20 | 2023-04-21 | 中国石油化工股份有限公司 | Low-temperature instant polyvinyl alcohol and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081880A (en) * | 2007-07-12 | 2007-12-05 | 四川大学 | Preparation of highly water-soluble polyvinyl alcohol |
-
2011
- 2011-05-09 CN CN201110118076.0A patent/CN102229685A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081880A (en) * | 2007-07-12 | 2007-12-05 | 四川大学 | Preparation of highly water-soluble polyvinyl alcohol |
Non-Patent Citations (1)
| Title |
|---|
| 《化学研究与应用》 20090430 杨同禄等 （乙酸乙烯酯-co-丙烯酸）共聚物的合成、醇解及产物水溶性研究 507-511 1-6 第21卷, 第4期 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746462A (en) * | 2012-07-19 | 2012-10-24 | 安徽皖维高新材料股份有限公司 | Method for preparing water-soluble polyvinyl acetate (PVA) resin through vinyl acetate-acrylic acid copolymerization |
| CN102746462B (en) * | 2012-07-19 | 2014-04-09 | 安徽皖维高新材料股份有限公司 | Method for preparing water-soluble polyvinyl acetate (PVA) resin through vinyl acetate-acrylic acid copolymerization |
| CN103008005A (en) * | 2012-12-14 | 2013-04-03 | 何林 | Method for preparing PVA (Polyvinyl Alcohol) by catalyzing polyvinyl acetate for controlled alcoholysis |
| CN104558319A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工集团公司 | Method for improving forming of low-viscosity polyvinyl alcohol |
| CN104558319B (en) * | 2013-10-22 | 2017-12-26 | 中国石油化工集团公司 | A kind of method for improving the shaping of low viscosity polyvinyl alcohol |
| CN104497192A (en) * | 2014-12-12 | 2015-04-08 | 安徽皖维高新材料股份有限公司 | Preparation method capable of rapidly dissolving PVA resin |
| CN112920293A (en) * | 2015-03-05 | 2021-06-08 | 积水精细化工美国有限公司 | PVOH dispersants for VCM polymerization |
| US10766983B2 (en) | 2015-03-05 | 2020-09-08 | Sekisui Specialty Chemicals America, Llc | PVOH dispersant for VCM polymerization |
| CN109021685A (en) * | 2018-09-21 | 2018-12-18 | 楼乐超 | A kind of hydrophobicity fixation ink and its preparation process |
| CN111636242A (en) * | 2020-04-17 | 2020-09-08 | 仙鹤股份有限公司 | Micro-coating sublimation thermal transfer paper and preparation method thereof |
| CN111636242B (en) * | 2020-04-17 | 2022-06-21 | 仙鹤股份有限公司 | Micro-coating sublimation thermal transfer paper and preparation method thereof |
| CN115991845A (en) * | 2021-10-20 | 2023-04-21 | 中国石油化工股份有限公司 | Low-temperature instant polyvinyl alcohol and preparation method thereof |
| CN114014969A (en) * | 2021-11-15 | 2022-02-08 | 上海华峰新材料研发科技有限公司 | Water-soluble polymer and preparation method and application thereof |
| CN114014969B (en) * | 2021-11-15 | 2023-08-11 | 上海华峰新材料研发科技有限公司 | Water-soluble polymer and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102229685A (en) | Polyvinyl alcohol and use of polyvinyl alcohol as dispersant | |
| CN105418857B (en) | The preparation method and application of the polycarboxylate water-reducer of phosphoric acid ester group | |
| CN102746462B (en) | Method for preparing water-soluble polyvinyl acetate (PVA) resin through vinyl acetate-acrylic acid copolymerization | |
| CN101081880A (en) | Preparation of highly water-soluble polyvinyl alcohol | |
| CN101974135A (en) | Normal-temperature synthesis method for polycarboxylic acid water-reducing agent | |
| CN103708759B (en) | A kind of modified aliphatic high efficiency water reducing agent and preparation method thereof | |
| CN108102085A (en) | Polyether monomer, polycarboxylate water-reducer and its methods for making and using same from it | |
| CN104710606A (en) | Alkenyl terminated polyether ester and preparation method thereof, and water reducing agent prepared by using alkenyl terminated polyether ester and preparation method thereof | |
| CN107868238A (en) | A kind of preparation method and application of heavy metal free polyester polycondensation catalyst | |
| CN101983944A (en) | Polycarboxylic acids water reducing agent containing low molecular weight carbon dioxide copolymer, and preparation method thereof | |
| CN102584665A (en) | Method for preparing 75 mass percent solvent based cumyl peroxyneodecanoate | |
| CN104447672B (en) | A kind of active carbon solid-carrying heteropolyacid is for the synthesis of the method for 6-caprolactone | |
| CN104119309B (en) | A kind of environmentally friendly catalyzer is for the synthesis of the method for 6-caprolactone | |
| CN106220680A (en) | A kind of beta-unsaturated esters, its preparation method and the application in prepared by sustained-release polycarboxylic super plasticizer | |
| CN112225843A (en) | Ternary scale inhibitor and preparation method thereof | |
| JP2019517989A (en) | Process for preparing low temperature liquid phase of acrylic ester | |
| CN102464633A (en) | Synthetic method for (methyl) glycidyl acrylate | |
| CN105801752B (en) | A kind of copolymer of β carypohyllenes maleic anhydride and preparation method and application | |
| CN102911302B (en) | Vinyl-acetic ester class monomer emulsion living polymerization method | |
| CN102603948B (en) | Polyvinyl pyridine preparing method | |
| CN102746193B (en) | Preparation method of 2-cyano-4'-bromomethylphenylbenzene | |
| CN104667978A (en) | Magnetic core-shell structural solid acid material and preparation method thereof | |
| CN113754808B (en) | Preparation method of poly alpha-hydroxy acrylic acid | |
| CN102442933A (en) | Preparation method of solvent type tert-butyl peroxyneo-caprate (BNP) | |
| CN102108108A (en) | Method for synthesizing branched polymer by using vinyl benzyl sulfydryl propionate as a functional monomer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111102 |