JPS55118903A - Preparation of chloroprene copolymer - Google Patents

Preparation of chloroprene copolymer

Info

Publication number
JPS55118903A
JPS55118903A JP2511379A JP2511379A JPS55118903A JP S55118903 A JPS55118903 A JP S55118903A JP 2511379 A JP2511379 A JP 2511379A JP 2511379 A JP2511379 A JP 2511379A JP S55118903 A JPS55118903 A JP S55118903A
Authority
JP
Japan
Prior art keywords
chloroprene
coagulum
copolymer
water
expansion
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.)
Pending
Application number
JP2511379A
Other languages
Japanese (ja)
Inventor
Masato Sawada
Kenji Itoyama
Kokichi Sumida
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 JP2511379A priority Critical patent/JPS55118903A/en
Publication of JPS55118903A publication Critical patent/JPS55118903A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prepare a chloroprene copolymer useful as an oil-resistant rubber, without emitting irritative odor under improved working conditions on the standpoint of environmental sanitation, by drying the copolymer of chloroprene and an unsaturated nitrile etc. with an expansion-type dryer.
CONSTITUTION: The water-containing coagulum 8 of a copolymer of chloroprene and an unsaturated nitrile (e.g. acrylonitrile) or monomers copolymerizable therewith (e.g. styrene) is continuously fed from the inlet 1 of an expansion-type dryer. The coagulum is transferred to the compression zone 2 by rotating the screw 5. A considerable amount of water 9 is squeezed out by compression action and discharged from the outlet 3 through the screen 7. The coagulum is transferred forward and injected through the narrow nozzle of the die 4 under high temperature and high pressure caused by the frictional heat to change the residual water to steam 10 in a moment, and consequently to give the dried polymer 11.
COPYRIGHT: (C)1980,JPO&Japio
JP2511379A 1979-03-06 1979-03-06 Preparation of chloroprene copolymer Pending JPS55118903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2511379A JPS55118903A (en) 1979-03-06 1979-03-06 Preparation of chloroprene copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2511379A JPS55118903A (en) 1979-03-06 1979-03-06 Preparation of chloroprene copolymer

Publications (1)

Publication Number Publication Date
JPS55118903A true JPS55118903A (en) 1980-09-12

Family

ID=12156865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2511379A Pending JPS55118903A (en) 1979-03-06 1979-03-06 Preparation of chloroprene copolymer

Country Status (1)

Country Link
JP (1) JPS55118903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112912431A (en) * 2018-11-08 2021-06-04 电化株式会社 Chloroprene-unsaturated nitrile copolymer composition and vulcanized molded article

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51109047A (en) * 1975-03-20 1976-09-27 Kuraray Co Gomusoseibutsu oyobi sonoseizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51109047A (en) * 1975-03-20 1976-09-27 Kuraray Co Gomusoseibutsu oyobi sonoseizohoho

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112912431A (en) * 2018-11-08 2021-06-04 电化株式会社 Chloroprene-unsaturated nitrile copolymer composition and vulcanized molded article
CN112912431B (en) * 2018-11-08 2023-04-04 电化株式会社 Chloroprene-unsaturated nitrile copolymer composition and vulcanized molded article
US11965078B2 (en) 2018-11-08 2024-04-23 Denka Company Limited Chloroprene/unsaturated nitrile copolymer composition and vulcanized molded object

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