A water/oil repellent treatment agent which includes a specific polymer-modified silane having a fluorooxyalkylene structure on the main chain and a hydrolyzable group at the end of the molecular chain, and/or a partial (co)hydrolyzate/condensate thereof, has a percent weight loss following one hour of exposure at 250° C. of 10% or less. The treatment forms a layer having excellent water and oil repellency, scuff resistance and mold release properties even when heated to 250° C. or more.

A water/oil repellent treatment agent which includes a specific polymer-modified silane having a fluorooxyalkylene structure on the main chain and a hydrolyzable group at the end of the molecular chain, and/or a partial (co)hydrolyzate/condensate thereof, has a percent weight loss following one hour of exposure at 250° C. of 10% or less. The treatment forms a layer having excellent water and oil repellency, scuff resistance and mold release properties even when heated to 250° C. or more.

The present invention provides compound of formulae (A1), (A2), (B1), (B2), (C1) and (C2) which can form a layer having water-repellency, oil-repellency and antifouling property as well as high friction durability:

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wherein each symbols are as defined in the specification.

Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.

A union screw (1) for pipes (2) provided with at least one flare (21) comprises a metal base body (10) which accommodates the pipe (20). The union screw (1) further comprises a screw head (12), a threaded portion (13), a contact portion (15) which is configured to abut the flare (21) of the pipe (20), and a functional layer (40) with which the base body (10) is coated at least in the region of the threaded portion (13) and the contact portion (15). The functional layer (40) is multi-layered and consists of at least one base coat (41) and a top coat (42) applied to the base coat (41) at least in some areas. The base coat (41) forms a structure for creating corrosion protection and a far-reaching invariance with regard to the material of the usual friction partners of the union screw (1) which, in addition to a binder, also contains zinc in the form of zinc-containing lamellae (43), which are oriented to lie substantially flat on the base body (10).

A union screw (1) for pipes (2) provided with at least one flare (21) comprises a metal base body (10) which accommodates the pipe (20). The union screw (1) further comprises a screw head (12), a threaded portion (13), a contact portion (15) which is configured to abut the flare (21) of the pipe (20), and a functional layer (40) with which the base body (10) is coated at least in the region of the threaded portion (13) and the contact portion (15). The functional layer (40) is multi-layered and consists of at least one base coat (41) and a top coat (42) applied to the base coat (41) at least in some areas. The base coat (41) forms a structure for creating corrosion protection and a far-reaching invariance with regard to the material of the usual friction partners of the union screw (1) which, in addition to a binder, also contains zinc in the form of zinc-containing lamellae (43), which are oriented to lie substantially flat on the base body (10).

A photosensitive resin composition comprising (A) a silphenylene and polyether structure—containing polymer and (B) a photoacid generator is coated onto a substrate to form a photosensitive resin coating which has improved substrate adhesion, a pattern forming ability, crack resistance, and reliability as protective film.

A process for producing an optical glass with an anti-fog coating is disclosed. The process includes the steps of: a) providing an optical glass, b) preparing a layer having Si—H groups (silane groups) on the optical glass, and c) reacting the silane groups with a compound having hydrophilic groups and at least one group reactive to the silane group.

A process for producing an optical glass with an anti-fog coating is disclosed. The process includes the steps of: a) providing an optical glass, b) preparing a layer having Si—H groups (silane groups) on the optical glass, and c) reacting the silane groups with a compound having hydrophilic groups and at least one group reactive to the silane group.

Provided is a black coupling member for vehicles, comprising a trivalent chromium black chemical conversion film and a black coating film upon the trivalent chromium black chemical conversion film, on the surface of a zinc-plated metal substrate. The trivalent chromium black chemical conversion film is formed using a hexavalent chromium-free trivalent chromium black chemical conversion treatment solution having a Zn ion concentration of no more than 20 g/L. The lightness (L) of the trivalent chromium black chemical conversion film is no more than 33. The black coating film includes a black chemical conversion component, a modified organopolysiloxane, and a friction coefficient-adjustment component. The black chemical conversion component content is 2-25 wt % relative to 100 wt % of the black coating film. The lightness (L) is no more than 28.