Siloxane/hydrocarbon compositions and cleaning method using the same

    公开(公告)号:US10934506B2

    公开(公告)日:2021-03-02

    申请号:US16307755

    申请日:2017-06-05

    发明人: Jon P. Nietfeld

    摘要: The compositions include a methylated siloxane liquid and a solvent comprising at least one of a ketone or ester each having up to six carbon atoms, a halogenated alkane having up to two carbon atoms, tetrachloroethene, 1-chloro-4-trifluoromethyl benzene, or ethane. The compositions can also include hydrocarbon solvent comprising at least one of toluene, xylene, or a saturated hydrocarbon represented by formula CxH2x+y, wherein x is from 5 to 8, and wherein y is 0 or 2 and/or propellant. The method can include applying the composition to a brake system component to clean the brake system component. The method can also include applying a composition including hexamethyldisiloxane to a brake system component to clean the brake system component.

    Method of using personal and home care compositions containing a sol-gel derived material

    公开(公告)号:US10881598B2

    公开(公告)日:2021-01-05

    申请号:US16110837

    申请日:2018-08-23

    摘要: Disclosed is a method for removing fatty oil from a surface containing the fatty oil comprising the steps of applying to the surface containing the fatty oil a composition comprising a sol-gel derived material, the sol-gel derived material including a plurality of alkylsiloxy substituents and the sol-gel derived material obtained from
    (a) at least one first alkoxysilane precursor having the formula: (R′O)3—Si—(CH2)n—Ar—(CH2)m—Si—(OR′)3  (1) where n and m are individually an integer from 1 to 8, Ar is a single-, fused-, or poly-aromatic ring, and each R′ is independently a C1 to C5 alkyl group and (b) optionally, at least one second precursor having the formula: where x is 1, 2, 3 or 4; y is 0, 1, 2, 3; z is 0, 1; the total of x+y+z is 4; each R is independently an organic functional group; each an R′ is independently a C1 to C5 alkyl group and R″ is an organic bridging group and then moving the composition from the surface to remove the fatty oil.