Liquid Coating Compositions for Use in Methods for Forming a Superhydrophobic, Superoleophobic or Superamphiphobic Layer

    公开(公告)号:US20170152388A1

    公开(公告)日:2017-06-01

    申请号:US15323085

    申请日:2015-07-02

    Abstract: The present invention provides for method for forming a superhydrophobic, superoleophobic or superamphiphobic layer and imparting said property on a surface, comprising the steps of a. preparing a liquid coating composition comprising a solvent and dispersed silicone nanoparticles, b. optionally priming the surface to form a primed surface on which a superhydrophobic, superoleophobic or superamphiphobic layer is to be formed, c. applying a layer of the liquid coating composition on the surface or primed surface on which the superhydrophobic, superoleophobic or superamphiphobic layer is to be formed, d. evaporating the solvent from the liquid coating composition to form a superhydrophobic, superoleophobic or superamphiphobic layer and impart said property on the surface or primed surface, wherein the dispersed silicone nanoparticles are formed by polymerization of at least one compound of formula I in an aprotic solvent comprising 5 to 500 ppm of water, RaSi(R1)n(X1)3-n  (I) wherein Ra is a straight-chain or branched C(1-24) alkyl or alkenyl group, an aromatic group which is linked by a single covalent bond or linked by a straight-chain or branched alkylene unit having 1 to 8 carbon atoms, to the Si-atom, R1 a straight chain or a branched hydrocarbon radical having 1 to 6 carbon atoms, X1 is a hydrolysable group, which is one or more of a halogen or an alkoxy group, and n is 0 or 1, and preferably is 0.

    BRUSHES FOR DELIVERING GLUTINOUS SUBSTANCE TO WORKPIECE FROM END-EFFECTOR AND METHODS FOR MAKING AND USING THE SAME

    公开(公告)号:US20170105513A1

    公开(公告)日:2017-04-20

    申请号:US15143172

    申请日:2016-04-29

    Abstract: A brush (400) for delivering a glutinous substance (168) to a workpiece (170) from an end-effector (102) is disclosed. The brush (400) comprises a body (402) having a rotational axis (438). The body (402) comprises a first end (407), a second end (411), opposite the first end (407), and a channel (408), comprising an axial inlet (409) and an outlet (480). The axial inlet (409) is at the first end (407) of the body (402) and is coaxial with the rotational axis (438). The brush (400) also comprises bristles (420), extending from the body (402) so that the bristles (420) are not parallel to the rotational axis (438) of the body (402).

    Printed circuits with sacrificial test structures

    公开(公告)号:US09618564B2

    公开(公告)日:2017-04-11

    申请号:US14164769

    申请日:2014-01-27

    Applicant: Apple Inc.

    Abstract: Electrical components may be soldered to a printed circuit. The printed circuit may have an edge with an opening. Printed circuit contacts in the opening may be configured to form electrical connections with mating contacts on a flexible printed circuit or other external structure. A tester may test the electrical components by conveying signals through the contacts. Following testing, the external structure may be removed from the opening. The opening may then be filled with dielectric to isolate the printed circuit contacts. A printed circuit may have traces that extend under a ground on a surface of the printed circuit, may have edge test points formed from contacts that are cut in half when removing portions of the printed circuit, or may have through-mold vias that are formed through encapsulant over the electrical components.

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