Compositions – Physical separation agents
Patent
1977-10-20
1979-10-30
Padgett, Benjamin R.
Compositions
Physical separation agents
128272, 141311R, 141329, 141332, 206216, 206525, 210 65, 210 83, 210259, 210DIG23, 252303, 252306, 252308, 252309, 252316, 252317, 252408, C09K 300, B01D 2126
Patent
active
041728033
ABSTRACT:
This invention provides a liquid separating composition containing as a base material a liquid polymer of hydrocarbon or derivatives thereof having a viscosity ranging from 100 to 20,000 CP at 20.degree. C., suitable amounts of additives for adjusting the specific gravity and viscosity of the composition and a network former for imparting a thixotropic property to the composition. This invention also provides an apparatus for applying a liquid separating composition, comprising a vessel filled with a liquid separating composition, and a cannula fixed to the vessel, for piercing into a rubber cap of a liquid container.
The liquid separating composition is transferred to the liquid container by centrifuging the apparatus connected to the liquid container.
REFERENCES:
patent: 2676925 (1954-04-01), Lindstrom et al.
patent: 3259574 (1966-07-01), Morrison et al.
patent: 3412031 (1968-11-01), Martinek et al.
patent: 3852194 (1974-12-01), Zine, Jr.
patent: 3963119 (1976-06-01), Lukacs et al.
patent: 3977982 (1976-08-01), Hertl
patent: 4043928 (1977-08-01), Lukacs et al.
Ichikawa Toshizi
Watanabe Teruko
Gron T. S.
Padgett Benjamin R.
Terumo Corporation
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