Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1979-05-21
1981-01-06
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521170, 260 292TN, 528 85, 528272, 528308, 528309, 528405, 568852, 204131, C08G 1814
Patent
active
042437580
ABSTRACT:
This invention relates to a continuous or discontinuous process for the removal of catalytic quantities of lead ions from aqueous formose solutions by cationic electro-deposition. The process is preferably carried out with a constant current and in at least three stages, with lower current densities being maintained during the first and last stage than in the middle stages.
REFERENCES:
patent: 3764499 (1973-10-01), Okubo et al.
patent: 3878169 (1975-04-01), Guillet et al.
Grant (ed), Hackh's Chemical Dictionary, McGraw-Hill, NY, 1944, pp. 352-358.
Mohring Edgar P.
Muller Hanns P.
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Welsh Maurice J.
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