JPS5580411A - Suspension polymerization of vinyl chloride - Google Patents

Suspension polymerization of vinyl chloride

Info

Publication number
JPS5580411A
JPS5580411A JP15436978A JP15436978A JPS5580411A JP S5580411 A JPS5580411 A JP S5580411A JP 15436978 A JP15436978 A JP 15436978A JP 15436978 A JP15436978 A JP 15436978A JP S5580411 A JPS5580411 A JP S5580411A
Authority
JP
Japan
Prior art keywords
polyvinyl alcohol
vinyl chloride
suspension polymerization
vinyl
monomer
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
JP15436978A
Other languages
Japanese (ja)
Other versions
JPS5811890B2 (en
Inventor
Fumitake Watanabe
Toshio Asano
Haruo Funemi
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP53154369A priority Critical patent/JPS5811890B2/en
Publication of JPS5580411A publication Critical patent/JPS5580411A/en
Publication of JPS5811890B2 publication Critical patent/JPS5811890B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a vinyl chloride type polymer with excellent porosity and processability by adding modified polyvinyl alcohol and partially saponified polyvinyl alcohol before suspension polymerization of vinyl chloride type monomer.
CONSTITUTION: In case of carrying out suspension polymerization of vinyl chloride monomer or a mixture with a monomer copolimerizable therewith, a modified polyvinyl alcohol of which an average polymerization degree is 300W2500, an average saponification degree is 65W80mol% and a clouding point of a 4wt% aqeous soln. is above 60°C and a partially saponified polyvinyl alcohol of which a clouding point of a 4wt% aqueous soln. is below polymerization temperature are added. As an applied modified polyvinyl alcohol, a saponified product of a copolymer of vinyl acetate and crotonic acid, a copolymer of vinyl acetate and vinyl thioester or the like is designated and the ratio of other compounds copolimerizable with vinyl acetate is preferably 0.1W5.0mol%.
COPYRIGHT: (C)1980,JPO&Japio
JP53154369A 1978-12-13 1978-12-13 Suspension polymerization method of vinyl chloride Expired JPS5811890B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53154369A JPS5811890B2 (en) 1978-12-13 1978-12-13 Suspension polymerization method of vinyl chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53154369A JPS5811890B2 (en) 1978-12-13 1978-12-13 Suspension polymerization method of vinyl chloride

Publications (2)

Publication Number Publication Date
JPS5580411A true JPS5580411A (en) 1980-06-17
JPS5811890B2 JPS5811890B2 (en) 1983-03-05

Family

ID=15582646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53154369A Expired JPS5811890B2 (en) 1978-12-13 1978-12-13 Suspension polymerization method of vinyl chloride

Country Status (1)

Country Link
JP (1) JPS5811890B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0625313A (en) * 1991-06-21 1994-02-01 Sumitomo Chem Co Ltd Suspension polymerization of vinyl chloride monomer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54112985A (en) * 1978-02-23 1979-09-04 Nippon Synthetic Chem Ind Co Ltd:The Suspension polymerization of vinyl compound

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54112985A (en) * 1978-02-23 1979-09-04 Nippon Synthetic Chem Ind Co Ltd:The Suspension polymerization of vinyl compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0625313A (en) * 1991-06-21 1994-02-01 Sumitomo Chem Co Ltd Suspension polymerization of vinyl chloride monomer

Also Published As

Publication number Publication date
JPS5811890B2 (en) 1983-03-05

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