Method of preventing corrosion of apparatus for melt-processing

Details Method of preventing corrosion of apparatus for melt-processing Method of preventing corrosion of apparatus for melt-processing

1986-11-05

1988-05-24

Jacobs, Lewis T.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524433, 524456, 524609, C08K 509, C08K 322

Patent

active

047466987

ABSTRACT:
Corrosion of a melt-processing apparatus for processing a polyarylene thioether at a temperature higher than the melting point thereof is prevented by a method which comprises adding to 100 parts by weight of the polyarylene thioether 0.001 to 10 parts by weight of at least one member selected from the group consisting of (i) hydroxides of metals of the group IIa of the Periodic Table, (ii) oxides of metals of the group IIa of the Periodic Table and (iii) aromatic carboxylic acid salts of metals of the group IIa of the Periodic Table.
By this method, even if the melt-processing article obtained is exposed to moisture, the electrical properties of the article formed (for example, insulation characteristics) and the water resistance are not substantially deteriorated.

REFERENCES:
patent: 4211687 (1980-07-01), Salee
patent: 4237039 (1980-12-01), Blackwell
patent: 4395512 (1983-07-01), Kubota et al.

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