Invention Application
- Patent Title: METHOD FOR CLEANING ARTICLES USING NONFLAMMABLE, AZEOTROPIC OR AZEOTROPE-LIKE COMPOSITION
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Application No.: US15477658Application Date: 2017-04-03
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Publication No.: US20170283959A1Publication Date: 2017-10-05
- Inventor: Dov SHELLEF , Edo SHELLEF
- Applicant: Dov SHELLEF , Edo SHELLEF
- Main IPC: C23G5/032
- IPC: C23G5/032 ; C09K3/00 ; C11D7/50

Abstract:
A nonflammable solvent composition, a method of cleaning an article, and a method of depositing a material on a substrate are disclosed. The nonflammable solvent composition includes a fluorocyclopentane in which 3 to 9 hydrogen atoms have each been replaced by a fluorine atom; trans-1,2-dichloroethylene (t-DCE); and at least one organic compound, such as a C2-C6 alcohol, a C1-C6 alkane, and a C3-C6 cycloalkane. Amounts of the fluorocyclopentane, t-DCE, and the organic compound in the nonflammable composition are selected so that the composition is an azeotrope or is azeotrope-like. The method of cleaning an article includes contacting the article with the nonflammable composition via vapor degreasing or wet cleaning. The method of depositing a material on a substrate includes dissolving the material in the nonflammable solvent composition, applying the composition containing the material to the substrate, and evaporating the composition from the substrate.
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