Chelate-forming filter, process for producing the same, and...

Details Chelate-forming filter, process for producing the same, and... Chelate-forming filter, process for producing the same, and...

2005-03-29

2005-03-29

Cintins, Ivars C. (Department: 1724)

Liquid purification or separation

Processes

Ion exchange or selective sorption

C210S681000, C210S688000, C210S767000, C210S502100, C210S508000

Reexamination Certificate

active

06872317

ABSTRACT:
A chelate-forming filter which comprises a filter medium made of natural, regenerated, or synthetic fibers wherein the fiber molecules have, incorporated therein, chelate-forming functional groups represented by general formula (1) [wherein G represents a residue of a chain sugar alcohol or of a polyhydric alcohol; and R represents hydrogen, (lower) alkyl, or -G (wherein G has the same meaning as the above G, and the two G's may be the same or different)] or (3) (wherein R1, R2, and R3each represents lower alkylene; and n is an integer of 1 to 4).

REFERENCES:
patent: 3847842 (1974-11-01), Suzuki et al.
patent: 6168863 (2001-01-01), Nambu et al.
patent: 6200481 (2001-03-01), Nambu et al.
patent: 1 427 832 (1976-03-01), None
patent: 57-197040 (1882-12-01), None
patent: 49-63060 (1974-06-01), None
patent: 60-137820 (1985-07-01), None
patent: 61-164614 (1986-07-01), None

Affiliated with

Also associated with

Rating

Chelate-forming filter, process for producing the same, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chelate-forming filter, process for producing the same, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chelate-forming filter, process for producing the same, and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3371806