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Title:
AZEOTROPE-LIKE MIXTURE OF 1,1-DICHLORO-2,2,2-TRIFLUOROETHANE AND 1,1-DICHLORO-1-FLUOROETHANE
Document Type and Number:
Japanese Patent JPH02306927
Kind Code:
A
Abstract:

PURPOSE: To obtain an azeotrope-like mixture containing the subject two compounds in a specified ratio and being useful as a cleaning agent, a coolant, a blowing agent for thermosetting polymer foams, etc.

CONSTITUTION: There is provided an azeotrope-like mixture comprising 1-99 wt.% (desirably 30-70%) 1,1-dichloro-2,2,2-trifluoroethane and 99-1 wt.% (desirably 70-30 wt.%) 1,1-dichloro-1-fluoroethane and having a boiling point of about 31.5°C at atmospheric pressure. This mixture can permit the easy removal and reuse of the solvent from vapor defluxing and degreasing operations owing to its azeotrope-like properties. It is especially useful for cleaning printed circuit boards (made of metal, glass or plastic) and stained with flux or a blowing for polyurethane foams, phenolic foams, etc.


Inventors:
FURITSUPU RII BAATORETSUTO
JIYOSEFU ANSONII KUREATSUZO
BINCHI MARUTEINEZU FUERITSUKUS
ABIDO NAZARARI MAACHIYANTO
Application Number:
JP9493090A
Publication Date:
December 20, 1990
Filing Date:
April 10, 1990
Export Citation:
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Assignee:
DU PONT
International Classes:
C07C19/12; C08J9/14; C08K5/02; C09K3/00; C09K3/30; C09K5/00; C09K5/04; C11D7/30; C09K5/08; C11D7/50; C23G5/028; F25D5/00; H05K3/26; (IPC1-7): C07C19/08; C09K3/00; C09K5/00; C11D7/30; C11D7/50; C23G5/028; H05K3/26
Domestic Patent References:
JPH01103686A1989-04-20
JPH01136981A1989-05-30
JPH01136982A1989-05-30
JPH01137253A1989-05-30
JPH01137259A1989-05-30
JPH01138300A1989-05-31
JPH01139104A1989-05-31
JPH01139861A1989-06-01
Attorney, Agent or Firm:
Yoshikazu Tani (2 outside)



 
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