Polymer scale preventive process using a coating of chitosan sal

Details Polymer scale preventive process using a coating of chitosan sal Polymer scale preventive process using a coating of chitosan sal

1994-12-15

1996-01-23

Schofer, J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in reactor of specified material, or in reactor...

526200, 526205, C08F 200

Patent

active

054865824

ABSTRACT:
A polymer scale preventive process 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 process 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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patent: 4952495 (1990-08-01), Belly et al.
patent: 5122598 (1992-06-01), della Valle et al.
patent: 5153281 (1992-10-01), Shimizu et al.
patent: 5378775 (1995-01-01), Shimizu et al.

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