POLYMERIZATION VESSEL FOR PRODUCING N-VINYLCARBOXYLIC ACID AMIDE COPOLYMER

Title:

POLYMERIZATION VESSEL FOR PRODUCING N-VINYLCARBOXYLIC ACID AMIDE COPOLYMER

Document Type and Number:

Japanese Patent JPH0597932

Kind Code:

A

Abstract:

PURPOSE:To provide the title polymerization vessel capable of easily recovering polymers without their sticking to the inner wall, with the inner wall surface to come into contact with a polymerization liquid phase coated with a tetrafluoroethylene-hexafluoropropylene copolymer. CONSTITUTION:The objective polymerization vessel for producing an N- vinylcarboxylic acid amide copolymer by copolymerization between a compound of formula I and another compound of formula II (R<1> and R<2> are each H or methyl). In this vessel, its inner wall surface to come into contact with at least polymerization liquid phase is coated with a tetrafluoroethylene- hexafluoropropylene copolymer at a thickness of e.g. 200-1000mum.

Inventors:

SATO SHINICHI
HISAMA SEIJI

Application Number:

JP25944491A

Publication Date:

April 20, 1993

Filing Date:

October 07, 1991

Export Citation:

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Assignee:

MITSUBISHI CHEM IND

International Classes:

C08F2/00; C08F26/02; (IPC1-7): C08F2/00; C08F26/02

Attorney, Agent or Firm:

Hasegawa Hajime (1 person outside)

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