Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent
1994-01-27
1995-10-24
Silbaugh, Jan H.
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
134 8, 134 2211, 134 7, 152441, 152444, 15230, 1523011, B08B 100, B08B 700, B08B 904, A47L 1316
Patent
active
054606551
ABSTRACT:
A novel method and a novel article for cleaning a metal, glass, or plastic surface without scratching or scoring the surface. The novel method includes wiping the surface with the novel article, which is made from an open cell, hydrophilic, static-dissipative, polyurethane foam, and which is laundered so that the article in deionized water releases fewer than 36.0.times.10.sup.6 per square meter of apparent surface area of the article for particles of a size greater than about 0.5 .mu.m and fewer than about 2.5 parts per million of chloride, fluoride, sodium, sulfate, sulfite, or silicon ions. The novel article may be a wiper, a sponge, a roller, a swab mounted on a handle, or a plug having a generally cylindrical shape when unstressed and having particular utility where the surface is the interior surface of a metal, glass, or plastic tube. The plug is propelled through the tube, as by means of compressed air. The novel method also may include washing the surface with deionized water.
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patent: 5032185 (1991-07-01), Knapp
Pisacane Ferdinand F.
Seacord Alan R.
El-Arini Zeinab
Silbaugh Jan H.
Wilshire Technologies, Inc.
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