Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Patent
1978-09-07
1980-05-13
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
423 24, 525375, B01D 1504, C08F 2606
Patent
active
042029449
ABSTRACT:
An ion exchange resin having functional groups of the formula :- ##STR1## wherein :- A and B, independently of each other, represent groups forming together with the attached carbon and nitrogen atoms, an optionally substituted five or six membered heterocyclic ring which may embody a further heteroatom and wherein at least one of such heterocyclic rings is an aromatic ring; R* may be totally absent or it may represent an optionally substituted alkyl radical and Z represents a resin to which the functional groups are attached.
REFERENCES:
patent: 3873668 (1975-03-01), Melby
patent: 3884846 (1975-05-01), Otsuke et al.
patent: 4107098 (1978-08-01), Tomuro et al.
Bond Roy F.
Green Brian R.
Hancock Robert D.
Kulkosky Peter F.
National Institute for Metallurgy
Schofer Joseph L.
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