Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1992-04-27
1994-04-26
Pal, Asok
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 11, 134 2219, B08B 900, B08B 906
Patent
active
053063503
ABSTRACT:
The application contains subject matter related to cleaning mixtures and methods for using such cleaning mixtures to clean apparatus which contain one or more polymeric compounds wherein said cleaning mixture is comprised of at least one compressed fluid and at least one active solvent in which said at least one or more polymeric compounds are at least partially soluble and which is at least partially miscible with the at least one compressed fluid, said compressed fluid being a gas at standard conditions of 0.degree. C. and one atmosphere (STP), which cleaning mixture is in one phase and at a pressure at which the cleaning mixture is substantially near its two phase region.
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Hoy Kenneth L.
Nielsen Kenneth A.
Leightner J. F.
Pal Asok
Union Carbide Chemicals & Plastics Technology Corporation
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