JPS54108890A - Preparation of vinyl chloride polymer - Google Patents

Preparation of vinyl chloride polymer

Info

Publication number
JPS54108890A
JPS54108890A JP1606478A JP1606478A JPS54108890A JP S54108890 A JPS54108890 A JP S54108890A JP 1606478 A JP1606478 A JP 1606478A JP 1606478 A JP1606478 A JP 1606478A JP S54108890 A JPS54108890 A JP S54108890A
Authority
JP
Japan
Prior art keywords
vinyl chloride
polymerization
chain transfer
transfer agent
preparation
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
JP1606478A
Other languages
Japanese (ja)
Other versions
JPS5811889B2 (en
Inventor
Satoshi Kuwata
Koji Azuma
Kazuhiko Kurimoto
Kinya Ogawa
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.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical 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 Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Priority to JP53016064A priority Critical patent/JPS5811889B2/en
Publication of JPS54108890A publication Critical patent/JPS54108890A/en
Publication of JPS5811889B2 publication Critical patent/JPS5811889B2/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 improve the dispersion and the feed ratio of vinyl chloride monomer in the preparation of vinyl chloride polymer having relatively low degree of polymerization in an aqeous medium, by adding a specific chain transfer agent separately to the reaction system at the initiation of the polymerization and in the polymerization process.
CONSTITUTION: Vinyl chloride is polymerized using about 0.001-0.5 wt% of a chain transfer agent comprising an organic compound having a mercapto group and a hydroxyl group or a carboxyl group, e.g. 2-mercaptoethanol, 2-hydroxypropyl mercaptan, thioglycerine, etc. 1-50 wt% of the chain transfer agent (pref. 0.0005- 0.028% based on the monomer) is added at the initiation of the polymerization, and the rest of the agent is added thereto when the polymerization rate reaches 1-30%.
COPYRIGHT: (C)1979,JPO&Japio
JP53016064A 1978-02-15 1978-02-15 Method for producing vinyl chloride polymer Expired JPS5811889B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53016064A JPS5811889B2 (en) 1978-02-15 1978-02-15 Method for producing vinyl chloride polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53016064A JPS5811889B2 (en) 1978-02-15 1978-02-15 Method for producing vinyl chloride polymer

Publications (2)

Publication Number Publication Date
JPS54108890A true JPS54108890A (en) 1979-08-25
JPS5811889B2 JPS5811889B2 (en) 1983-03-05

Family

ID=11906136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53016064A Expired JPS5811889B2 (en) 1978-02-15 1978-02-15 Method for producing vinyl chloride polymer

Country Status (1)

Country Link
JP (1) JPS5811889B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401812A (en) * 1980-10-16 1983-08-30 Hoffmann-La Roche Inc. Anthracycline antibiotics

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114785A (en) * 1982-12-20 1984-07-02 松下電器産業株式会社 Induction heating cooking device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923592A (en) * 1972-06-23 1974-03-02
JPS5016790A (en) * 1973-05-21 1975-02-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4923592A (en) * 1972-06-23 1974-03-02
JPS5016790A (en) * 1973-05-21 1975-02-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401812A (en) * 1980-10-16 1983-08-30 Hoffmann-La Roche Inc. Anthracycline antibiotics

Also Published As

Publication number Publication date
JPS5811889B2 (en) 1983-03-05

Similar Documents

Publication Publication Date Title
DE3373277D1 (en) Process for preparing insoluble, only slightly expandable polymers of basic vinyl-heterocyclic compounds, and their use
ES2001474A6 (en) Acrylic modified polymers.
DE3662897D1 (en) Process for the preparation of water soluble powdery polymers, and their use
JPS54108890A (en) Preparation of vinyl chloride polymer
JPS5516015A (en) Styrene-acrylic resin and its production
ES8303454A1 (en) A method for the suspension polymerization of styrenic monomers.
JPS5411988A (en) Preparation of vinyl chloride polymer
JPS5433584A (en) Preparation of polymer latex
JPS52138583A (en) Preparation of vinyl chloride polymers
JPS5744609A (en) Preparation of parahydroxystyrene polymer
JPS5336586A (en) Production of vinyl chloride or cinylidene chloride polymer
JPS5421485A (en) Preparation of aqueous polymer dispersion
JPS5423690A (en) Suspension polymerization of vinyl chloride
JPS54126289A (en) Preparation of synthetic resin emulsion
JPS52152994A (en) Preparation of phenolic resin
JPS57109812A (en) Methyl methacrylate copolymer and its production
JPS5421484A (en) Polymerization of vinyl chloride
JPS5653115A (en) Preparation of low molecular weight acrylic copolymer
JPS5272787A (en) Process for polymerizing vinyl chloride
JPS5233987A (en) Preparation of vinyl chloride polymer
JPS543894A (en) Preparation of olefin polymer
JPS53102992A (en) Production of alkyd-modified vinylcopolymer
JPS5228585A (en) Process for the preparation of acrylamide containing little unreacted monomer
JPS5410392A (en) Preparation of vinyl chloride polymer
JPS5611913A (en) Suspension polymerization of vinyl chloride