Polymer scale depostion preventive agent and a process for produ

Details Polymer scale depostion preventive agent and a process for produ Polymer scale depostion preventive agent and a process for produ

1996-08-30

1998-03-17

Weber, Thomas R.

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

Synthetic resins

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

C08F 1406

Patent

active

057287813

ABSTRACT:
A polymer scale deposition preventive agent comprising (a) an aromatic compound having at least eight conjugated .pi. bonds and having a molecular weight of 1,000 or more, and (b) a polyalkylene oxide having a weight-average molecular weight of 2,000 or more, wherein the weight ratio of the component (a) to the component (b) is 100/500 to 100/1, can prevent surely the deposition of polymer scale even in a polymerization system containing a monomer, such as styrene, acrylic acid esters or acrylonitrile, which has a high solvency for a coating film consisting of the conventional polymer scale deposition preventive agent.

REFERENCES:
Chemical Abstracts, Abs. 103:89 034, JP-A-60 101 155, Jun. 1985.
Chemical Abstracts, Abs. 99:23 127, JP-A-58 011 504, Jan. 22, 1983.

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