Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1983-10-28
1985-04-02
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
428325, 523219, C08J 932
Patent
active
045088560
ABSTRACT:
Polymers that are stable under aqueous conditions of high ionic strength are combined with non-fused, silicate based microspheres that are modified with multivalent metals but not washed or dried, said microspheres being present as filters.
REFERENCES:
patent: 4340642 (1982-07-01), Netting et al.
patent: 4403048 (1983-09-01), Blitstein
patent: 4411847 (1983-10-01), Netting et al.
patent: 4420442 (1983-12-01), Sands
patent: 4421562 (1983-12-01), Sands
Peters John F.
Smith Christopher G.
Bobb J. S. Stephen
Lilling Herbert J.
Philpitt Fred C.
Posner Ernest G.
PQ Corporation
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