Invention Grant
- Patent Title: Azeotropic compositions comprising fluorinated olefins for cleaning applications
- Patent Title (中): 包含用于清洁应用的氟化烯烃的共沸组合物
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Application No.: US11897086Application Date: 2007-08-29
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Publication No.: US07641808B2Publication Date: 2010-01-05
- Inventor: Melodie A. Schweitzer , Allen Capron Sievert , Joan Ellen Bartelt , Barbara Haviland Minor
- Applicant: Melodie A. Schweitzer , Allen Capron Sievert , Joan Ellen Bartelt , Barbara Haviland Minor
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C09K5/04
- IPC: C09K5/04 ; C11D7/30
Abstract:
The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z-C3F7CH═CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
Public/Granted literature
- US20090062170A1 Azeotropic compositions comprising fluorinated olefins for cleaning applications Public/Granted day:2009-03-05
Information query
