Process For The Purification Of Alcohol-Containing Solvents

    公开(公告)号:US20220259525A1

    公开(公告)日:2022-08-18

    申请号:US17533427

    申请日:2021-11-23

    摘要: A process for processing an alcohol-containing solvent is described. The process according to the invention is used in particular for the treatment of alcohol-containing solvents which are used, for example, for cleaning metal parts. Further subject matter of the present invention are compositions which are suitable for the aforementioned intended use, as well as the use of certain compositions for the purification of alcohol-containing solvents.

    Cleaner composition, cleaning aerosol, and method for cleaning contaminated part

    公开(公告)号:US11384319B2

    公开(公告)日:2022-07-12

    申请号:US16634642

    申请日:2018-08-03

    发明人: Hiroaki Ito

    摘要: A cleaner composition, a cleaning aerosol, and a method for cleaning a contaminated part, in which the contaminated part, particularly a part around an automobile brake or the like, can be cleaned easily, safely, and with high efficiency and minimal environmental impact. A cleaner composition can include a component (A); cis-1-chloro-3,3,3-trifluoropropene (HCFO-1233zdZ) as a cleaning agent; and a component (B); carbon dioxide as a propellant; wherein a content of the component (B) contains 1.6 to 10 parts by mass with respect to 100 parts by mass of the component (A).

    Solvent composition, adhesive composition, and method of bonding surfaces

    公开(公告)号:US11326078B2

    公开(公告)日:2022-05-10

    申请号:US16497840

    申请日:2018-04-02

    摘要: In an embodiment a solvent composition can comprise, based on the total volume of the solvent composition, 10 to 95 volume percent of a first solvent, wherein the first solvent has Hansen solubility parameters of: 15 MPa0.5≤δD≤17 MPa0.5, 4≤δP≤10.5 MPa0.5, and 7≤δH≤10 MPa0.5; 5 to 95 volume percent of a second solvent, wherein the second solvent has Hansen solubility parameters of: 16 MPa0.5≤δD≤17.5 MPa0.5, 0≤δP≤3 MPa0.5, and 0≤δH≤3 MPa0.5; and 0 to 85 volume percent parachlorobenzotrifluoride; wherein the amounts of the first solvent, the second solvent, and parachlorobenzotrifluoride sum to at least 85 volume percent. The first solvent can comprise methyl acetate, acetone, dimethyl carbonate, ethyl acetate, n-butylamine, propyl acetate, tetrahydrofuran, or a combination thereof. The second solvent can comprise cyclohexene, cyclohexane, cyclopentane, methylcyclohexane, or a combination thereof. The solvent compositions are particularly useful in an adhesive composition. An adhesive composition includes the solvent composition, a rubber, and a tackifying resin. A method of bonding two surfaces is also described.

    CLEANING AGENT COMPOSITION AND CLEANING METHOD

    公开(公告)号:US20220135913A1

    公开(公告)日:2022-05-05

    申请号:US17430978

    申请日:2020-02-14

    摘要: A cleaning agent composition for use in removal of a polysiloxane adhesive remaining on a substrate containing a tetrahydrocarbylammonium fluoride and an organic solvent, wherein the organic solvent contains a lactam compound represented by formula (1) and a ring-structure-having ether compound including at least one species selected from among a cyclic ether compound, a cycloalkyl (chain alkyl) ether compound, a cycloalkyl (branched alkyl) ether compound, and a di(cycloalkyl) ether compound. (in formula (1), R101 represents a C1 to C6 alkyl group; and R102 represents a C1 to C6 alkylene group.)