Plastic and nonmetallic article shaping or treating: processes – With step of cooling to a temperature of zero degrees c. or...
Patent
1980-12-11
1983-01-18
Parrish, John A.
Plastic and nonmetallic article shaping or treating: processes
With step of cooling to a temperature of zero degrees c. or...
26433111, 252317, B01J 1300
Patent
active
043691510
ABSTRACT:
Process of freezing organic particulate suspensions containing freeze-sensitive inorganic colloidal sols to form uniform porous substrates and of freezing biological material while in contact with a hydrophobic liquid.
REFERENCES:
patent: 3171870 (1965-03-01), Monteil
patent: 3177161 (1965-04-01), Johannsen
patent: 4246209 (1981-01-01), Johannsen
Parrish John A.
Ramu International
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