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JPS5728124A - Production of thermally stabilized vinyl chloride polymer - Google Patents

Production of thermally stabilized vinyl chloride polymer

Info

Publication number
JPS5728124A
JPS5728124A JP10309380A JP10309380A JPS5728124A JP S5728124 A JPS5728124 A JP S5728124A JP 10309380 A JP10309380 A JP 10309380A JP 10309380 A JP10309380 A JP 10309380A JP S5728124 A JPS5728124 A JP S5728124A
Authority
JP
Japan
Prior art keywords
vinyl chloride
polymer
chloride polymer
aqueous dispersion
vinyl
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
JP10309380A
Other languages
Japanese (ja)
Other versions
JPS6243449B2 (en
Inventor
Katsuo Mitani
Takashi Maehara
Yukio Mizutani
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP10309380A priority Critical patent/JPS5728124A/en
Publication of JPS5728124A publication Critical patent/JPS5728124A/en
Publication of JPS6243449B2 publication Critical patent/JPS6243449B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Graft Or Block Polymers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: An aqueous dispersion of vinyl chloride polymer bearing sulfide groups is treated with a vinyl monomer with negative e under heating to produce the titled polymer with high thermal stability and less discoloration.
CONSTITUTION: An aqueous dispersion of vinyl chloride polymer bearing sulfide groups, produced, e.g., by the polymerization of vinyl chloride monomer in an aqueous medium in the presence of an organic mercaptan, is combined with a vinyl monomer with negative e, preferably -0.20W-1.50 such as styrene, preferably by 0.5W10pts.wt. per 100pts. of the vinyl chloride polymer and they are heat treated, e.g., at 50W75°C for 30minW5hr to produce the objective polymer. The vinyl monomer is preferably added at any stage from the time when the conversion of vinyl chloride polymerization reaches higher than 50% to the salting out of the polymer from the aqueous dispersion.
COPYRIGHT: (C)1982,JPO&Japio
JP10309380A 1980-07-29 1980-07-29 Production of thermally stabilized vinyl chloride polymer Granted JPS5728124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10309380A JPS5728124A (en) 1980-07-29 1980-07-29 Production of thermally stabilized vinyl chloride polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10309380A JPS5728124A (en) 1980-07-29 1980-07-29 Production of thermally stabilized vinyl chloride polymer

Publications (2)

Publication Number Publication Date
JPS5728124A true JPS5728124A (en) 1982-02-15
JPS6243449B2 JPS6243449B2 (en) 1987-09-14

Family

ID=14345013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10309380A Granted JPS5728124A (en) 1980-07-29 1980-07-29 Production of thermally stabilized vinyl chloride polymer

Country Status (1)

Country Link
JP (1) JPS5728124A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5254630A (en) * 1989-10-28 1993-10-19 Huels Aktiengesellschaft Process for the production of a vinyl chloride-butyl acrylate graft copolymer for processing by injection molding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319462A (en) * 1986-07-11 1988-01-27 Fuji Heavy Ind Ltd Centrifugal hydraulic pressure correcting device for belt type continuously variable transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5254630A (en) * 1989-10-28 1993-10-19 Huels Aktiengesellschaft Process for the production of a vinyl chloride-butyl acrylate graft copolymer for processing by injection molding

Also Published As

Publication number Publication date
JPS6243449B2 (en) 1987-09-14

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