Method for neutralizing an alkaline solution of an organic resin

Details Method for neutralizing an alkaline solution of an organic resin Method for neutralizing an alkaline solution of an organic resin

1991-04-26

1993-03-16

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

521 405, 523332, 528488, C08F 606, C08F 612

Patent

active

051945835

ABSTRACT:
The use of aluminum sulfate to neutralize alkaline solutions yields a gelatinous precipitate. When neutralization of the solution causes other materials to precipitate along with the gel, filtration of the precipitated materials is very difficult because of the gel. When the combination of magnesium sulfate and aluminum sulfate is used as the neutralizing agent for an alkaline stripper solution of a photoresin, the voluminous sludge may be filtered quickly.

REFERENCES:
patent: 1173698 (1916-02-01), Block
patent: 3915909 (1975-10-01), Schnoring et al.
patent: 4028238 (1977-06-01), Allan
patent: 4078129 (1978-03-01), Yamagata et al.
patent: 4238442 (1980-12-01), Cline et al.
patent: 4336170 (1982-06-01), Horiiki et al.
patent: 4760014 (1988-07-01), Wong
patent: 4857206 (1989-08-01), Choo

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