CN111333758A - Production method of environment-friendly polyvinyl chloride resin - Google Patents
Production method of environment-friendly polyvinyl chloride resin Download PDFInfo
- Publication number
- CN111333758A CN111333758A CN202010260616.8A CN202010260616A CN111333758A CN 111333758 A CN111333758 A CN 111333758A CN 202010260616 A CN202010260616 A CN 202010260616A CN 111333758 A CN111333758 A CN 111333758A
- Authority
- CN
- China
- Prior art keywords
- parts
- polyvinyl chloride
- environment
- chloride resin
- latex
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F114/02—Monomers containing chlorine
- C08F114/04—Monomers containing two carbon atoms
- C08F114/06—Vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/18—Suspension polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/02—Neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F6/00—Post-polymerisation treatments
- C08F6/24—Treatment of polymer suspensions
Abstract
The invention provides a production method of environment-friendly polyvinyl chloride resin, which is implemented by adopting a DCS distributed control system to control the following steps: a) adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min; b) adding the homogenized mixture into a polymerization kettle, heating to 40-55 ℃, and carrying out polymerization reaction by adopting a micro-suspension polymerization process to obtain latex; c) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex; d) adding 0.01-0.1 part of buffering agent to adjust the pH value; e) and (3) carrying out spray drying on the latex to obtain the environment-friendly polyvinyl chloride resin. The polyvinyl chloride resin produced by the method meets the requirement of downstream manufacturers on the environmental protection of the resin through SVHC (REACH high attention substance detection), heavy metal and polycyclic aromatic hydrocarbon detection.
Description
Technical Field
The invention relates to the field of chemical industry, in particular to a production method of environment-friendly polyvinyl chloride resin.
Background
The special PVC resin is an important raw material in the chemical industry, and is mainly used for producing wall paper, artificial leather, floor leather, flame-retardant conveyor belts, toys and other products. With the improvement of environmental protection requirements of processed products such as toys and the like, particularly export products, part of downstream manufacturers propose to carry out environment-friendly SVHC (real high attention substance detection), six heavy metal detection and polycyclic aromatic hydrocarbon detection on resin products. Because the existing auxiliary agent for producing the special resin contains components which are limited by environmental protection laws and regulations, PVC products such as toys, gloves and the like produced by downstream customers by using the special resin have partial standard exceeding conditions. Therefore, the development of environment-friendly special resin has important significance.
Disclosure of Invention
In order to solve the problems, the invention provides a method for producing environment-friendly polyvinyl chloride resin, which aims to produce environment-friendly polyvinyl chloride resin meeting the environment-friendly standard.
The invention adopts the following technical scheme:
a production method of various environment-friendly polyvinyl chloride resins is implemented by adopting a DCS distributed control system to control the following steps:
a) adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min;
b) adding the homogenized mixture into a polymerization kettle, heating to 40-55 ℃, and carrying out polymerization reaction for 10-20 hours by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m;
c) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex;
d) adding 0.01-0.1 part of buffering agent to adjust the pH value;
e) carrying out spray drying on the latex to obtain environment-friendly polyvinyl chloride resin;
or, the DCS distributed control system is adopted to carry out the following steps:
a) adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min;
b) adding the homogenized mixture into a polymerization kettle, and adding 0.01-0.1 part of buffering agent to adjust the pH value;
c) heating the polymerization kettle to 40-55 ℃, and carrying out polymerization reaction for 10-20 h by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m;
d) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex;
e) adding 0.01-0.1 part of buffering agent to adjust the pH value;
f) carrying out spray drying on the latex to obtain environment-friendly polyvinyl chloride resin;
or, the DCS distributed control system is adopted to carry out the following steps:
a) adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min;
b) adding the homogenized mixture into a polymerization kettle, and adding 0.01-0.1 part of buffering agent to adjust the pH value;
c) heating the polymerization kettle to 40-55 ℃, and carrying out polymerization reaction for 10-20 h by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m;
d) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex;
e) and (3) carrying out spray drying on the latex to obtain the environment-friendly polyvinyl chloride resin.
Compared with the prior art, the invention has the advantages that: by using the buffering agent, the pH values of the reaction system and the latex after reaction can be adjusted in time; by using the environment-friendly nonionic surfactant, the produced special resin meets the requirement of downstream manufacturers on the environmental protection of the resin through SVHC (real high attention substance detection), heavy metal and polycyclic aromatic hydrocarbon detection.
Further, spray drying is carried out by adopting a spray drying system, wherein the inlet temperature of the spray drying system is controlled to be 120-160 ℃, and the outlet temperature of the spray drying system is controlled to be 50-80 ℃.
Further, the initiator is an azo compound, an organic peroxide or a mixture of the azo compound and the organic peroxide compounded according to the mass ratio of 0.5-3.
Further, the azo compound is one or more of oil-soluble azobisisobutyronitrile, azobisisovaleronitrile, azobisisoheptonitrile, azobisisobutyronitrile formamide, azobisdicyclohexyl-methyl cyanide, dimethyl azobisisobutyrate, water-soluble azobisisobutyramidine hydrochloride, azobisisopropylimidazoline and azobiscyanovaleric acid.
Further, the organic peroxide initiator is one or more of ethyl ethoxypropionate, p-3, 5-trimethyl-n-hexanoyl peroxide and di (2-ethylhexyl) peroxydicarbonate.
Further, the emulsifier is prepared from an anionic surfactant and a nonionic surfactant in a mass ratio of 1: 0-1.8; during preparation, water is heated to a temperature higher than the melting point of the nonionic surfactant, then the nonionic surfactant is added, after stirring for 5-30 min, the anionic surfactant is added, and stirring is continued for 30-120 min for later use.
Further, the anionic surfactant is one or more of alkyl (C11-C18) fatty acid salt, alkyl (C10-C18) sulfate, alkyl (C12-C16) benzene sulfonate, alkyl aryl sulfonate, alkyl succinic acid sulfonate and polyoxyethylene ether sulfate.
Further, the nonionic surfactant is one or more of long-chain alkyl fatty alcohol, epoxy alkyl fatty alcohol, polyoxyethylene alkyl ester, polyoxyethylene alkyl ether, sorbitan fatty acid ester and sorbitan fatty acid ester.
Further, the environment-friendly nonionic surfactant is one or more of castor oil polyoxyethylene ester, polyoxyethylene fatty acid ester, polyoxyethylene ester fatty alcohol ether and polyoxyethylene alkyl alcohol amine.
Further, the buffer is one or more of sodium bicarbonate, sodium hydroxide, disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium bicarbonate or organic amine.
Detailed Description
The invention will be described below by means of specific examples. It should be understood by those skilled in the art that the examples are only for illustrating the present invention and not for limiting the present invention.
According to one aspect of the present invention, there is provided a method for producing an environment-friendly polyvinyl chloride resin, the specific examples are as follows:
example 1
Adding water into a container, heating the water to 65 deg.C (higher alcohol melting point of 47-53 deg.C), adding 35.98g long chain alkyl fatty alcohol, stirring for 5min, adding 26.23g sodium dodecyl benzene sulfonate, and stirring for 30min to obtain emulsifier. 3600g of vinyl chloride monomer, 3200g of deionized water, 5.0g of azobisisobutyronitrile, 2.2g of ethyl ethoxypropionate and the prepared emulsifier were added to a dispersion tank, and homogenized at normal temperature for 50 min. Adding the homogenized mixture into a polymerization kettle, heating to 40 ℃, and carrying out polymerization reaction for 10 hours by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m. After the polymerization was completed, 1.52g of castor oil polyoxyethylene ester was added to the polymerization vessel to adjust the viscosity of the latex, and 0.36g of ammonium bicarbonate was added to the polymerization vessel to adjust the pH of the latex. Spray drying the adjusted latex using a spray drying system to obtain a polyvinyl chloride resin, wherein the inlet temperature of the spray drying system is controlled at 120 ℃ and the outlet temperature is controlled at 50 ℃. The polyvinyl chloride resin obtained in the embodiment is subjected to environment-friendly detection, and the SVHC test result is less than or equal to 0.1% (w/w), and meets the European Union detection standard. And (3) feeding the obtained environment-friendly polyvinyl chloride resin into a grinder for further grinding, and storing the resin finished product environment-friendly resin with the particle size of 2-5 mu m into a storage bin. Tables 1 and 2 show the results of the SVHC test for different substances, respectively.
TABLE 1 test results for substances of high interest in SVHC candidate lists
Table 2 test results for additional identified SVHC
Example 2
Adding water into a container, heating the water to a temperature higher than 65 ℃, adding 36.63g of epoxy alkyl fatty alcohol, stirring for 15min, adding 26.78g of sodium dodecyl benzene sulfonate, and stirring for 80min to obtain the emulsifier for later use. 3700g of vinyl chloride monomer, 3320g of deionized water, 5.2g of azobisisobutyronitrile, 2.1g of p-3.5.5-trimethyl-n-hexanoyl peroxide and the prepared emulsifier were added to a dispersion tank and homogenized at normal temperature for 70 min. The homogenized mixture was added to a polymerization kettle, to which was added 0.36g of ammonium bicarbonate. Heating the polymerization kettle to 50 ℃, and carrying out polymerization reaction for 15 hours by adopting a micro suspension polymerization process to obtain the latex with the particle size of 0.1-2 mu m. After the polymerization reaction was completed, 1.55g of polyoxyethylene fatty acid ester was added to the polymerization vessel to adjust the viscosity of the latex, and 0.5g of ammonium hydrogencarbonate was further added to the polymerization vessel to adjust the pH of the latex. Spray drying the adjusted latex using a spray drying system to obtain a polyvinyl chloride resin, wherein the inlet temperature of the spray drying system is controlled at 140 ℃ and the outlet temperature is controlled at 65 ℃. The polyvinyl chloride resin obtained in the embodiment is subjected to environment-friendly detection, and the SVHC test result is less than or equal to 0.1% (w/w), and meets the European Union detection standard. And (3) feeding the obtained environment-friendly polyvinyl chloride resin into a grinder for further grinding, and storing the resin finished product environment-friendly resin with the particle size of 2-5 mu m into a storage bin. Tables 3 and 4 show the results of the SVHC test for different substances, respectively.
TABLE 3 test results for substances of high interest in the SVHC candidate list
TABLE 4 test results for additional identified SVHC
Example 3
Adding water into a container, heating the water to a temperature higher than 65 ℃, adding 35.98g of epoxy alkyl fatty alcohol, stirring for 30min, adding 26.23g of sodium dodecyl benzene sulfonate, and stirring for 120min to obtain the emulsifier for later use. 3600g of vinyl chloride monomer, 3230g of deionized water, 5.2g of azobisisovaleronitrile, 2.0g of di (2-ethylhexyl) oxydicarbonate and the prepared emulsifier were added to a dispersion tank and homogenized at room temperature for 80 min. The homogenized mixture was charged into a polymerization vessel, to which was further added 0.39g of sodium bicarbonate. Heating the polymerization kettle to 55 ℃, and carrying out polymerization reaction for 20 hours by adopting a micro suspension polymerization process to obtain the latex with the particle size of 0.1-2 mu m. After completion of the polymerization, 1.52g of polyoxyethylene fatty acid ester was added to the polymerization vessel to adjust the viscosity of the latex. Spray drying the adjusted latex using a spray drying system to obtain a polyvinyl chloride resin, wherein the inlet temperature of the spray drying system is controlled at 160 ℃ and the outlet temperature is controlled at 80 ℃. The polyvinyl chloride resin obtained in the embodiment is subjected to environment-friendly detection, and the SVHC test result is less than or equal to 0.1% (w/w), and meets the European Union detection standard. And (3) feeding the obtained environment-friendly polyvinyl chloride resin into a grinder for further grinding, and storing the resin finished product environment-friendly resin with the particle size of 2-5 mu m into a storage bin. Tables 5 and 6 show the results of the SVHC test for different substances, respectively.
TABLE 5 test results for substances of high interest in the SVHC candidate list
TABLE 6 test results for additional identified SVHC
Comparative example
Adding water into a container, heating the water to above 65 deg.C, adding 34.65g long-chain alkyl fatty alcohol, stirring for 30min, adding 25.57g sodium dodecyl benzene sulfonate, and stirring for 90min to obtain the emulsifier. 3400g of vinyl chloride monomer, 3050g of deionized water, 4.9g of azobisisovaleronitrile and 1.8g of p-3.5.5-trimethyl-n-hexanoyl peroxide are added into a dispersion tank, and homogenized for 60min at normal temperature. The homogenized mixture was charged to a polymerization kettle, to which was added 0.34g of ammonium bicarbonate. Heating the polymerization kettle to 50 ℃, and carrying out polymerization reaction for 15 hours by adopting a micro suspension polymerization process to obtain the latex with the particle size of 0.1-2 mu m. After the polymerization reaction, 1.43g of non-environment-friendly nonionic surfactant nonylphenol polyoxyethylene ether was added to the polymerization kettle to adjust the viscosity of the latex. The adjusted latex was spray-dried using a spray-drying system to obtain a polyvinyl chloride resin. The polyvinyl chloride resin obtained in the embodiment is subjected to environment protection detection, and the SVHC test result is greater than 0.1% (w/w), and does not reach the European Union detection standard. Table 7 shows the test results for high interest substances in the SVHC candidate list.
TABLE 7 test results for substances of high interest in the SVHC candidate list
As is apparent from the comparison between the above examples and comparative examples, when the viscosity of the latex is adjusted using a non-eco-friendly nonionic surfactant as a viscosity modifier, the obtained polyvinyl chloride resin does not meet the environmental protection. The order of addition of the buffering agents does not affect the environmental protection of the obtained product, but affects the pH value of the polymerization system and improves the thermal stability of the resin.
In the steps of the above examples and comparative examples, a DCS distributed control system is used to fully automatically control the production processes of raw material configuration, homogenization, polymerization, drying, etc., and parameters such as reaction conditions, etc., thereby completing the production of resin.
The above description is only a preferred embodiment of the present invention, and those skilled in the art will appreciate that any modification, variation and substitution made without departing from the spirit and scope of the present invention are within the protection scope of the present invention.
Claims (10)
1. The production method of the environment-friendly polyvinyl chloride resin is characterized by being implemented by adopting a DCS distributed control system to control the following steps:
a) adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min;
b) adding the homogenized mixture into a polymerization kettle, heating to 40-55 ℃, and carrying out polymerization reaction for 10-20 hours by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m;
c) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex;
d) adding 0.01-0.1 part of buffering agent to adjust the pH value;
e) carrying out spray drying on the latex to obtain environment-friendly polyvinyl chloride resin;
or, the DCS distributed control system is adopted to control the following steps to implement:
adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min;
adding the homogenized mixture into a polymerization kettle, and adding 0.01-0.1 part of buffering agent to adjust the pH value;
c) heating the polymerization kettle to 40-55 ℃, and carrying out polymerization reaction for 10-20 h by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m;
d) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex;
e) adding 0.01-0.1 part of buffering agent to adjust the pH value;
f) carrying out spray drying on the latex to obtain environment-friendly polyvinyl chloride resin;
or, the DCS distributed control system is adopted to control the following steps to implement:
a) adding 100 parts of vinyl chloride monomer, 60-90 parts of deionized water, 0.01-0.2 part of initiator and 1-4 parts of emulsifier into a dispersion tank according to mass parts, and homogenizing at normal temperature for 50-80 min;
b) adding the homogenized mixture into a polymerization kettle, and adding 0.01-0.1 part of buffering agent to adjust the pH value;
c) heating the polymerization kettle to 40-55 ℃, and carrying out polymerization reaction for 10-20 h by adopting a micro suspension polymerization process to obtain latex with the particle size of 0.1-2 mu m;
d) after the polymerization reaction is finished, adding 0.01-2 parts of environment-friendly nonionic surfactant to adjust the viscosity of the latex;
e) and (3) carrying out spray drying on the latex to obtain the environment-friendly polyvinyl chloride resin.
2. The method for producing environment-friendly polyvinyl chloride resin according to claim 1, wherein the spray drying is performed by a spray drying system, an inlet temperature of the spray drying system is controlled to be 120-160 ℃, and an outlet temperature of the spray drying system is controlled to be 50-80 ℃.
3. The method for producing environment-friendly polyvinyl chloride resin according to claim 1, wherein the initiator is an azo compound, an organic peroxide or a mixture of the azo compound and the organic peroxide compounded according to a mass ratio of 0.5 to 3.
4. The method for producing environmentally friendly polyvinyl chloride resin according to claim 3, wherein said azo compound is one or more of oil-soluble azobisisobutyronitrile, azobisisovaleronitrile, azobisisoheptonitrile, azobisisobutyronitrile formamide, azobisdicyclohexyl-methane, dimethyl azobisisobutyrate, and water-soluble azobisisobutyramidine hydrochloride, azobisisopropylimidazoline, and azobiscyanovaleric acid.
5. The method for producing environmentally friendly polyvinyl chloride resin according to claim 3, wherein the organic peroxide initiator is one or more of ethyl ethoxypropionate, p-3, 5-trimethyl-n-hexanoyl peroxide, di (2-ethylhexyl) peroxydicarbonate.
6. The method for producing the environment-friendly polyvinyl chloride resin as claimed in claim 1, wherein the emulsifier is prepared from an anionic surfactant and a nonionic surfactant in a mass ratio of 1: 0-1.8; during preparation, water is heated to a temperature higher than the melting point of the nonionic surfactant, then the nonionic surfactant is added, after stirring for 5-30 min, the anionic surfactant is added, and stirring is continued for 30-120 min for later use.
7. The method for producing environmentally friendly polyvinyl chloride resin as claimed in claim 6, wherein the anionic surfactant is one or more selected from alkyl (C11-C18) fatty acid salt, alkyl (C10-C18) sulfate, alkyl (C12-C16) benzene sulfonate, alkyl aryl sulfonate, alkyl succinic acid sulfonate, and polyoxyethylene ether sulfate.
8. The method for producing environment-friendly polyvinyl chloride resin according to claim 6, wherein the nonionic surfactant is one or more of long-chain alkyl fatty alcohol, epoxy alkyl fatty alcohol, polyoxyethylene alkyl ester, polyoxyethylene alkyl ether, sorbitan fatty acid ester, and sorbitan fatty acid ester.
9. The method for producing environmentally friendly polyvinyl chloride resin according to claim 1, wherein the environmentally friendly nonionic surfactant is one or more of castor oil polyoxyethylene ester, polyoxyethylene fatty acid ester, polyoxyethylene fatty alcohol ether, polyoxyethylene alkyl alcohol amine.
10. The method for producing environmentally friendly polyvinyl chloride resin according to claim 1, wherein the buffer is one or more of sodium bicarbonate, sodium hydroxide, disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium bicarbonate or organic amine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010260616.8A CN111333758A (en) | 2020-04-03 | 2020-04-03 | Production method of environment-friendly polyvinyl chloride resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010260616.8A CN111333758A (en) | 2020-04-03 | 2020-04-03 | Production method of environment-friendly polyvinyl chloride resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111333758A true CN111333758A (en) | 2020-06-26 |
Family
ID=71178707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010260616.8A Withdrawn CN111333758A (en) | 2020-04-03 | 2020-04-03 | Production method of environment-friendly polyvinyl chloride resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111333758A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952229A (en) * | 2011-08-26 | 2013-03-06 | 沈阳化工股份有限公司 | PVC (Polyvinyl Chloride) paste resin and preparation method thereof |
| CN105315394A (en) * | 2014-06-20 | 2016-02-10 | 上海氯碱化工股份有限公司 | Environment-friendly foamed polyvinyl chloride paste resin and preparation method of same |
| CN105843187A (en) * | 2016-03-31 | 2016-08-10 | 唐山三友氯碱有限责任公司 | DCS charging control method of producing PVC paste resin by polymerizer |
| US20160376387A1 (en) * | 2013-11-28 | 2016-12-29 | Hanwha Chemical Corporation | Method for preparing vinyl chloride-based resin |
| CN107987194A (en) * | 2016-10-26 | 2018-05-04 | 上海天坛助剂有限公司 | A kind of environmental protection polyvinyl chloride paste resin production thinner and preparation method thereof |
| CN109970902A (en) * | 2019-02-03 | 2019-07-05 | 唐山三友氯碱有限责任公司 | The production method of dulling polyvinyl chloride paste resin |
-
2020
- 2020-04-03 CN CN202010260616.8A patent/CN111333758A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952229A (en) * | 2011-08-26 | 2013-03-06 | 沈阳化工股份有限公司 | PVC (Polyvinyl Chloride) paste resin and preparation method thereof |
| US20160376387A1 (en) * | 2013-11-28 | 2016-12-29 | Hanwha Chemical Corporation | Method for preparing vinyl chloride-based resin |
| CN105315394A (en) * | 2014-06-20 | 2016-02-10 | 上海氯碱化工股份有限公司 | Environment-friendly foamed polyvinyl chloride paste resin and preparation method of same |
| CN105843187A (en) * | 2016-03-31 | 2016-08-10 | 唐山三友氯碱有限责任公司 | DCS charging control method of producing PVC paste resin by polymerizer |
| CN107987194A (en) * | 2016-10-26 | 2018-05-04 | 上海天坛助剂有限公司 | A kind of environmental protection polyvinyl chloride paste resin production thinner and preparation method thereof |
| CN109970902A (en) * | 2019-02-03 | 2019-07-05 | 唐山三友氯碱有限责任公司 | The production method of dulling polyvinyl chloride paste resin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0567811B1 (en) | Process for producing an aqueous polymer dispersion | |
| DK171953B1 (en) | Procedure for coating an inorganic powder with an organic polymer | |
| US4539361A (en) | Method for making polymodal aqueous synthetic resin dispersions | |
| CZ352096A3 (en) | Process for preparing aqueous polymer dispersion | |
| CN110655664B (en) | Method for preparing polytetrafluoroethylene blend with high efficiency, environmental protection and low cost and product | |
| US20120123077A1 (en) | Vinyl chloride resin with low viscosity for foaming application and method of preparing the same | |
| US6897257B2 (en) | Process for forming latex polymers | |
| KR20080049974A (en) | Method for preparing paste vinylchloride resin for glove | |
| CN107936165A (en) | A kind of carboxylic styrene butadiene latex and its preparation process | |
| CN101735391A (en) | Composition for terminating emulsion polymerized styrene butadiene rubber without producing nitrosamine | |
| CN111333758A (en) | Production method of environment-friendly polyvinyl chloride resin | |
| KR101596996B1 (en) | Resin for blending having excellent workability, polyvinylchloride containing the same and method for preparing the same | |
| CN101300277B (en) | Method of preparing vinylchloride-based resin capable of producing plastisol with low viscosity, vinylchloride-based resin prepared using the method, method of preparing vinylchloride-based plastisol, and vinylchloride-based plastisol prepared using the method | |
| CN114656587B (en) | Emulsion polymer with low coagulum amount and preparation method and application thereof | |
| CN114989353B (en) | Modified butadiene-pyridine latex and preparation method and application thereof | |
| US6127455A (en) | Process for forming a seed polymer | |
| CN106995507B (en) | The method of isolating polymer after emulsion polymerization | |
| CA2177349A1 (en) | Aqueous polymer dispersions | |
| CN105273119B (en) | A kind of preparation method of high degree of polymerization of polyvinyl chloride resin | |
| KR102181116B1 (en) | A method for preparation of a stable polymer dispersion with colloidal silica particles | |
| KR101715450B1 (en) | Method for polymerizing paste PVC and forming material | |
| KR20120029552A (en) | Method of polyvinyl chloride seed for paste polyvinyl chloride resin | |
| KR20110070016A (en) | Method of preparing vinyl chloride paste resin having good thermal stability | |
| CN1414994A (en) | Polymer dispersion with cross-linking resin, method for producing the same and use thereof | |
| EP1036800B1 (en) | Process for preparing aqueous polymer dispersions with a high solids content |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200626 |
|
| WW01 | Invention patent application withdrawn after publication |