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Title:
POLYVINYL ALCOHOL-BASED RESIN, DISPERSING AGENT, AND DISPERSING AGENT FOR SUSPENSION POLYMERIZATION
Document Type and Number:
Japanese Patent JP2023052330
Kind Code:
A
Abstract:
To provide a polyvinyl alcohol-based resin which resists being colored, and a dispersing agent and a dispersing agent for suspension polymerization used in manufacturing polyvinyl chloride, each comprising the polyvinyl alcohol-based resin.SOLUTION: A polyvinyl alcohol-based resin has an absorbance (X) of 0.1 or greater, which is an absorbance at 320 nm in an ultraviolet absorption spectrum for an aqueous solution containing 0.1 wt.% of the resin. The content of fine powder having a particle diameter of 500 μm or less is 60 wt.% or less.SELECTED DRAWING: None

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Inventors:
Yusuke Muramatsu
Yoshihito Yamauchi
Bandai training
Application Number:
JP2023002514A
Publication Date:
April 11, 2023
Filing Date:
January 11, 2023
Export Citation:
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Assignee:
Mitsubishi Chemical Corporation
International Classes:
C08F16/06; C08F8/12
Attorney, Agent or Firm:
Patent Attorney Corporation Eiko Office



 
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