JPS57177009A - After-treatment of ethylene-vinyl acetate copolymer emulsion - Google Patents

After-treatment of ethylene-vinyl acetate copolymer emulsion

Info

Publication number
JPS57177009A
JPS57177009A JP6194681A JP6194681A JPS57177009A JP S57177009 A JPS57177009 A JP S57177009A JP 6194681 A JP6194681 A JP 6194681A JP 6194681 A JP6194681 A JP 6194681A JP S57177009 A JPS57177009 A JP S57177009A
Authority
JP
Japan
Prior art keywords
ethylene
vinyl acetate
emulsion
reaction system
catalyst
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.)
Granted
Application number
JP6194681A
Other languages
Japanese (ja)
Other versions
JPS6340202B2 (en
Inventor
Tadashi Ishibashi
Kenzo Utagawa
Tomoyoshi Kamimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Synthetic Chemical Industry Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP6194681A priority Critical patent/JPS57177009A/en
Publication of JPS57177009A publication Critical patent/JPS57177009A/en
Publication of JPS6340202B2 publication Critical patent/JPS6340202B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To treat an unreacted component without damaging the quality of the titled emulsion, by discharging an excess ethylene in the system after emulsion polymerization, adding an anti-foaming agent and a catalyst to it, introducing a water-containing inert gas to a gas phase in a container.
CONSTITUTION: Ethylene, vinyl acetate, and, if necessary, a copolymerizable monomer (e.g., acrylglycidyl, etc.) is subjected to emulsion polymerization in an aqueous medium. After the reaction is over, an excess ethylene in the reaction system is discharged, the reaction system is made at atmospheric pressure, and (A) an anti-foaming agent and (B) a catalyst (e.g., a redox catalyst consisting of a binitrate, hydrogen peroxide, etc.) is added to the reaction system, so that unreacted vinyl acetate in the emulsion is further copolymerized. Finally, (C) an inert gas with a water content of 1W25vol% is introduced to a gas phase in the container so that the dissolving ethylene is discharged, to give the desired emulsion having ≤0.3wt% remaining vinyl acetate and ≤100ppm dissolving ethylene.
COPYRIGHT: (C)1982,JPO&Japio
JP6194681A 1981-04-23 1981-04-23 After-treatment of ethylene-vinyl acetate copolymer emulsion Granted JPS57177009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6194681A JPS57177009A (en) 1981-04-23 1981-04-23 After-treatment of ethylene-vinyl acetate copolymer emulsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6194681A JPS57177009A (en) 1981-04-23 1981-04-23 After-treatment of ethylene-vinyl acetate copolymer emulsion

Publications (2)

Publication Number Publication Date
JPS57177009A true JPS57177009A (en) 1982-10-30
JPS6340202B2 JPS6340202B2 (en) 1988-08-10

Family

ID=13185861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6194681A Granted JPS57177009A (en) 1981-04-23 1981-04-23 After-treatment of ethylene-vinyl acetate copolymer emulsion

Country Status (1)

Country Link
JP (1) JPS57177009A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6426604A (en) * 1987-04-30 1989-01-27 Nippon Catalytic Chem Ind Hydrophilic polymer and production thereof
JPH0532729A (en) * 1990-10-30 1993-02-09 Dainippon Ink & Chem Inc Aqueous dispersion of fine gel particle of fluororesin and its production

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0399903A (en) * 1989-09-14 1991-04-25 Sumitomo Rubber Ind Ltd Radial tire for heavy load

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6426604A (en) * 1987-04-30 1989-01-27 Nippon Catalytic Chem Ind Hydrophilic polymer and production thereof
JPH0532729A (en) * 1990-10-30 1993-02-09 Dainippon Ink & Chem Inc Aqueous dispersion of fine gel particle of fluororesin and its production

Also Published As

Publication number Publication date
JPS6340202B2 (en) 1988-08-10

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