JPS55723A - Liquid chloroprene copolymer and its preparation - Google Patents

Liquid chloroprene copolymer and its preparation

Info

Publication number
JPS55723A
JPS55723A JP7323478A JP7323478A JPS55723A JP S55723 A JPS55723 A JP S55723A JP 7323478 A JP7323478 A JP 7323478A JP 7323478 A JP7323478 A JP 7323478A JP S55723 A JPS55723 A JP S55723A
Authority
JP
Japan
Prior art keywords
chlorobutadiene
copolymer
parts
mixture
properties
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
JP7323478A
Other languages
Japanese (ja)
Other versions
JPS5650898B2 (en
Inventor
Kiyonobu Maruhashi
Shotaro Fujii
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 JP7323478A priority Critical patent/JPS55723A/en
Publication of JPS55723A publication Critical patent/JPS55723A/en
Publication of JPS5650898B2 publication Critical patent/JPS5650898B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE: To obtain the title copolymer having improved unlcanizing properties and a low molecular weight, by copolymerizing 1-chloro-butadiene-1,3-with 2- chlorobutadiene-1,3-in a specific proportion.
CONSTITUTION: 100 parts by wt. of a mixture of 8W55 wt.% of 1-chlorobutadiene- 1,3 and 92W45 wt.% of 2-chlorobutadiene-1,3 or its mixture with copolymerizable styrene is copolymerized radically in the presence of 0.5W20 parts by wt. of a chain transfer agent, e.g. mercaptoethanol, in 20W400 parts by wt. of an organic solvent having a boiling point ≤150°C under normal pressure to give a liquid copolymer having an intrinsic viscosity of 0.04W0.25 in toluene at 30°C, a number-average modecular weight of 1,000W6,000, and 2W6 structural units based on 1-chlorobutadiene-1,3 in the molecule. The copolymer has improved vulcanizing properties and is usable for various applications, e.g. room temperature or heat-curing materials.
COPYRIGHT: (C)1980,JPO&Japio
JP7323478A 1978-06-19 1978-06-19 Liquid chloroprene copolymer and its preparation Granted JPS55723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7323478A JPS55723A (en) 1978-06-19 1978-06-19 Liquid chloroprene copolymer and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7323478A JPS55723A (en) 1978-06-19 1978-06-19 Liquid chloroprene copolymer and its preparation

Publications (2)

Publication Number Publication Date
JPS55723A true JPS55723A (en) 1980-01-07
JPS5650898B2 JPS5650898B2 (en) 1981-12-02

Family

ID=13512280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7323478A Granted JPS55723A (en) 1978-06-19 1978-06-19 Liquid chloroprene copolymer and its preparation

Country Status (1)

Country Link
JP (1) JPS55723A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113690A (en) * 1978-02-27 1979-09-05 Denki Kagaku Kogyo Kk Liquid chloroprene polymer and its preparation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113690A (en) * 1978-02-27 1979-09-05 Denki Kagaku Kogyo Kk Liquid chloroprene polymer and its preparation

Also Published As

Publication number Publication date
JPS5650898B2 (en) 1981-12-02

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