A hydrophobic, self-healing coating includes a vitrimer film having a silicone polymer network crosslinked with dynamic covalent bonds including a boronic ester, where the vitrimer film has a thickness of less than 1000 nm, and where the dynamic covalent bonds provide a mechanism for self-healing of the vitrimer film.

A method for producing a carbinol-modified organosiloxane, which comprises steps (A) to (C), is an efficient production method whereby it becomes possible to reduce the production of a by-product of the reaction for the production of a terminal-carbinol-modified organosiloxane. (A) a step of supplying the following components (a) to (c) to a tubular reactor continuously: (a) an organohydrogensiloxane represented by formula (I)

##STR00001##

(wherein R.sup.1's independently represent a monovalent hydrocarbon group having 1 to 20 carbon atoms; and m represents an integer of 0 to 500); (b) a compound represented by formula (II):

R.sup.2—Z—OH

(wherein R.sup.2 represents a vinyl group or an allyl group; and Z represents a bivalent hydrocarbon group); and (c) a platinum catalyst in an amount of 0.005 ppm by mass or more and less than 1.0 ppm by mass in terms of metal platinum content relative to the total amount of the components (a) to (c); (B) a step of subjecting the components (a) to (c) to a hydrosilylation reaction while allowing these components to pass through the tubular reactor; and (C) a step of removing a reaction product.

A method for producing a carbinol-modified organosiloxane, which comprises steps (A) to (C), is an efficient production method whereby it becomes possible to reduce the production of a by-product of the reaction for the production of a terminal-carbinol-modified organosiloxane. (A) a step of supplying the following components (a) to (c) to a tubular reactor continuously: (a) an organohydrogensiloxane represented by formula (I)

##STR00001##

(wherein R.sup.1's independently represent a monovalent hydrocarbon group having 1 to 20 carbon atoms; and m represents an integer of 0 to 500); (b) a compound represented by formula (II):

R.sup.2—Z—OH

(wherein R.sup.2 represents a vinyl group or an allyl group; and Z represents a bivalent hydrocarbon group); and (c) a platinum catalyst in an amount of 0.005 ppm by mass or more and less than 1.0 ppm by mass in terms of metal platinum content relative to the total amount of the components (a) to (c); (B) a step of subjecting the components (a) to (c) to a hydrosilylation reaction while allowing these components to pass through the tubular reactor; and (C) a step of removing a reaction product.

A bioelectrode includes an inorganic base material and a conductive layer covering the inorganic base material, in which the conductive layer has a polymer having moieties derived from a first compound having an epoxy group and an alkoxysilyl group, and at least one of an alkali metal ion and a Group 2 element ion supported in the polymer, and in the polymer, the moiety derived from the epoxy group is ring-opening polymerized, and the moiety derived from the alkoxysilyl group forms a siloxane bond.

Metal-polyorganosiloxane materials, methods of making and using them, and manufactured articles and devices containing them are disclosed. The metal-polyorganosiloxane materials have improved thermal stability and comprises a metal-polyorganosiloxane mixture that is free of condensation-curable polyorganosiloxane and solid particles other than metal particles and ceramic particles, the metal-organosiloxane mixture otherwise comprising: (A) a polyorganosiloxane that is free of silicon-bonded organoheteryl groups; (B) a hydrocarbylene-based multipodal silane; and (C) metal particles.

Metal-polyorganosiloxane materials, methods of making and using them, and manufactured articles and devices containing them are disclosed. The metal-polyorganosiloxane materials have improved thermal stability and comprises a metal-polyorganosiloxane mixture that is free of condensation-curable polyorganosiloxane and solid particles other than metal particles and ceramic particles, the metal-organosiloxane mixture otherwise comprising: (A) a polyorganosiloxane that is free of silicon-bonded organoheteryl groups; (B) a hydrocarbylene-based multipodal silane; and (C) metal particles.

Disclosed is a modified preceramic polymer having a polymer backbone consisting of silicon or a combination of silicon and carbon; and a pendant modifier bonded to the backbone wherein the modifier includes silicon, boron, aluminum, a transition metal, a refractory metal, or a combination thereof. The modified preceramic polymer can be used to form a ceramic matrix composite.

Disclosed is a modified preceramic polymer having a polymer backbone consisting of silicon or a combination of silicon and carbon; and a pendant modifier bonded to the backbone wherein the modifier includes silicon, boron, aluminum, a transition metal, a refractory metal, or a combination thereof. The modified preceramic polymer can be used to form a ceramic matrix composite.

Aqueous silicone emulsion compositions which cure utilising titanium-based reaction products as catalysts, and a process to prepare the same and their uses, are provided. The composition comprises (a) a titanium-based reaction product; (b) one or more silicon containing compounds having at least 2 or at least 3 hydroxyl and/or hydrolysable groups per molecule; (c) one or more surfactants; and (d) water. The titanium-based reaction product (a) is obtained or obtainable from a process comprising the steps of: (i) mixing a first ingredient, an alkoxy titanium compound having from 2 to 4 alkoxy groups with a second ingredient, a linear or branched polydiorganosiloxane having at least two terminal silanol groups per molecule and a viscosity of from 30 to 300,000 mPa.Math.s at 25 C.; (ii) enabling the first and second ingredients to react together by stirring under vacuum to form a reaction product; and (iii) collecting the reaction product of step (ii).

Compositions containing -ketocarbonyl-functional organopolysiloxanes, aminoalkyl-functional organopolysiloxanes, and optionally an organometallic compound provide textiles with high and lasting water repellency.