Polymer scale preventive agent, polymerization vessel...

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 105/00 (2006.01) B01J 19/02 (2006.01) C08F 2/00 (2006.01) C08K 5/46 (2006.01)

Patent

CA 2073090

ABSTRACT OF DISCLOSURE A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a water-soluble basic polysaccharide and (B) a phenothiazine. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel, and highly safe for operators. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness or a low initial coloration is obtained.

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