Two-step cleaning or dewatering with siloxane azeotropes

Details Two-step cleaning or dewatering with siloxane azeotropes Two-step cleaning or dewatering with siloxane azeotropes

1994-10-13

1997-05-13

El-Arini, Zeinab

Cleaning and liquid contact with solids

Processes

Using sequentially applied treating agents

134 38, 134 39, 134 42, B08B 304, B08B 308

Patent

active

056288336

ABSTRACT:
A process for cleaning or dewatering a surface in which there is applied to the surface a washing composition containing a volatile methyl siloxane such as hexamethyldisiloxane or octamethyltrisiloxane, and an agent for enhancing cleaning or dewatering such as a glycol ether or surface active agent. While the surface is still wet with the washing composition, it is rinsed with an azeotrope containing hexamethyldisiloxane or octamethyltrisiloxane, and 2-pentanol, 2-methyl -1-pentanol, 3-methyl-3-pentanol, 1-methoxy-2-propanol, 1-butoxy -2-propanol, 1-hexanol, n-propoxypropanol, or ethyl lactate. The surface is then dried or permitted to dry.

REFERENCES:
patent: 4933002 (1990-06-01), Petroff
patent: 5443747 (1995-08-01), Inada et al.
patent: 5454970 (1995-10-01), Flaningam et al.
patent: 5454972 (1995-10-01), Williams et al.
patent: 5456856 (1995-10-01), Flaningam et al.
patent: 5478493 (1995-12-01), Flaningam et al.
patent: 5503681 (1996-04-01), Inada et al.

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