Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having a nitrogen atom directly bonded to the...
Patent
1980-02-26
1981-12-01
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having a nitrogen atom directly bonded to the...
528 68, 564 50, 564 59, 210705, C08G 7102
Patent
active
043037801
ABSTRACT:
This invention relates to ureylene prepared by reacting an oxyalkylated polyamine with urea and to uses of such ureylene for example in removing oils, solids, and combinations thereof from aqueous systems, etc.
REFERENCES:
patent: 2155328 (1930-04-01), Paquin
patent: 3324176 (1967-06-01), Kirschnek et al.
patent: 3617440 (1971-11-01), Strother
patent: 4154724 (1979-05-01), Schulze
patent: 4178426 (1979-12-01), Waddill
patent: 4178427 (1979-12-01), Waddill et al.
Glass Hyman F.
Nielsen Earl A.
Petrolite Corporation
Ring Sidney B.
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