Method of preventing polymer scale deposition

Details Method of preventing polymer scale deposition Method of preventing polymer scale deposition

1990-02-01

1991-08-06

Schofer, Joseph L.

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

Synthetic resins

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

526208, 526210, 422131, C08F 204

Patent

active

050379046

ABSTRACT:
A method of preventing polymer scale deposition in a polymerization vessel during polymerization of a monomer having an ethylenically double bond, wherein said polymerization is carried out in a polymerization vessel of which the inner wall has a coating comprising a reaction product of a tannin and an aldehyde; a scale preventive agent comprising said reaction product; and a polymerization vessel having said coating on the inner wall thereof. Polymer scale deposition on the inner wall, etc. of the polymerization vessel can be effectively prevented.

REFERENCES:
patent: 4105839 (1978-08-01), Koyanagi et al.
patent: 4933399 (1990-06-01), Shimizu et al.

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