Method of preparing urea adsorbent

Details Method of preparing urea adsorbent Method of preparing urea adsorbent

1986-07-30

1987-06-30

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

21050021, 2105021, 210692, 521 63, 521 64, 521 56, C08J 928, B01J 1302

Patent

active

046771352

ABSTRACT:
A urea adsorbent and a method for its production are disclosed, the adsorbent comprising hollow microspheres each having an outer layer formed of a urea-permeable polymer and an inner layer formed of a polymer containing a polyoxyalkylene glycol derivative expressed by the following formula:

REFERENCES:
patent: 3244772 (1966-04-01), Von Bonin
patent: 3255127 (1966-06-01), Von Bonin
patent: 3442842 (1966-07-01), Von Bonin
patent: 4137380 (1979-01-01), Gunning et al.
patent: 4461849 (1984-07-01), Karickhoff

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