Disclosed is a method of improving the effectiveness of an oxygen removal unit for a fuel supply system. The method includes contacting a tube bundle with a repair liquid at 20 to 40° C. for less than two hours. The tube bundle includes tubes having an air permeable, non-porous polymer layer with discontinuities. The repair liquid includes a solvent and a curable thermoset material. The curable thermoset material is deposited in the discontinuities of the air permeable, non-porous polymer layer and cured. Also disclosed is a fuel system oxygen removal unit including a tubular bundle formed of tubes having an air permeable, non-porous polymer layer disposed on a microporous support wherein the air permeable, non-porous polymer layer includes discrete segments of a cured thermoset material.

Disclosed is a method of improving the effectiveness of an oxygen removal unit for a fuel supply system. The method includes contacting a tube bundle with a repair liquid at 20 to 40° C. for less than two hours. The tube bundle includes tubes having an air permeable, non-porous polymer layer with discontinuities. The repair liquid includes a solvent and a curable thermoset material. The curable thermoset material is deposited in the discontinuities of the air permeable, non-porous polymer layer and cured. Also disclosed is a fuel system oxygen removal unit including a tubular bundle formed of tubes having an air permeable, non-porous polymer layer disposed on a microporous support wherein the air permeable, non-porous polymer layer includes discrete segments of a cured thermoset material.

Nanocomposite compositions and methods for preparing nanocomposite compositions films are provided. The nanocomposite compositions include dendritic fibrous nanoparticles that have a diameter ranging from 50 to 500 nm, and a polymer matrix comprising poly(methyl methacrylate) (PMMA), where the dendritic fibrous nanoparticles have a hydrophobic coating and are dispersed within the PMMA matrix. Methods of preparing nanocomposite compositions may include introducing dendritic fibrous nanoparticles into a mixture with a poly(methyl methacrylate) and an organic solvent to form a composite solution. Methods further include casting the mixture onto a glass sheet within a mold, evaporating the organic solvent to form the nanocomposite film, and separating the nanocomposite film from the glass sheet.

Some embodiments of the present disclosure relate to a roofing putty. In some embodiments, the roofing putty is a formulation that comprises at least one polysiloxane, at least one silane, and at least one filler. Some embodiments of the present disclosure relate to a system comprising the roofing putty and at least one roof substrate. Some embodiments of the present disclosure relate to a method of using the roofing putty, such as, but not limited to, by disposing the roofing putty on at least one roof substrate.

Some embodiments of the present disclosure relate to a roofing putty. In some embodiments, the roofing putty is a formulation that comprises at least one polysiloxane, at least one silane, and at least one filler. Some embodiments of the present disclosure relate to a system comprising the roofing putty and at least one roof substrate. Some embodiments of the present disclosure relate to a method of using the roofing putty, such as, but not limited to, by disposing the roofing putty on at least one roof substrate.

A thermally conductive resin composition capable of maintaining high thermal conductivity and a thermally conductive sheet using the same, a thermally conductive resin composition contains an addition reaction type silicone resin, a thermally conductive filler, an alkoxysilane compound, and a carbodiimide compound in which a subcomponent is in an inactive state with respect to an alkoxysilane compound, and contains 55 to 85% by volume of the thermally conductive filler. A thermally conductive resin composition contains an addition reaction type silicone resin, an alkoxysilane compound, a thermally conductive filler, and a carbodiimide compound in which a subcomponent is in an inactive state with respect to the alkoxysilane compound, and exhibits thermal conductivity of 5 W/m*K or more after curing.

A thermally conductive resin composition capable of maintaining high thermal conductivity and a thermally conductive sheet using the same, a thermally conductive resin composition contains an addition reaction type silicone resin, a thermally conductive filler, an alkoxysilane compound, and a carbodiimide compound in which a subcomponent is in an inactive state with respect to an alkoxysilane compound, and contains 55 to 85% by volume of the thermally conductive filler. A thermally conductive resin composition contains an addition reaction type silicone resin, an alkoxysilane compound, a thermally conductive filler, and a carbodiimide compound in which a subcomponent is in an inactive state with respect to the alkoxysilane compound, and exhibits thermal conductivity of 5 W/m*K or more after curing.

A composition contains (a) a silicon-free mercapto compound comprising 2 or more mercapto groups; (b) a linear polyorganosiloxane containing one or more than one terminally unsaturated alkenyl group, 40 mole-percent or more phenyl groups relative to moles of silicon atoms and at least one alkoxysilyl group per molecule; (c) a resinous polyorganosiloxane containing one or more than one terminally unsaturated alkenyl group and 20 mole-percent or more phenyl groups relative to moles of silicon atoms; (d) a photoinitiator; and (e) a moisture cure catalyst; and wherein the molar ratio of mercapto groups to terminally unsaturated alkenyl groups in the composition is in a range of 0.3 to 2.0.

A composition contains (a) a silicon-free mercapto compound comprising 2 or more mercapto groups; (b) a linear polyorganosiloxane containing one or more than one terminally unsaturated alkenyl group, 40 mole-percent or more phenyl groups relative to moles of silicon atoms and at least one alkoxysilyl group per molecule; (c) a resinous polyorganosiloxane containing one or more than one terminally unsaturated alkenyl group and 20 mole-percent or more phenyl groups relative to moles of silicon atoms; (d) a photoinitiator; and (e) a moisture cure catalyst; and wherein the molar ratio of mercapto groups to terminally unsaturated alkenyl groups in the composition is in a range of 0.3 to 2.0.

The present invention relates to a powder of spherical crosslinkable polyamide particles, which is suitable for the selective laser sintering (SLS) technique, and also to a process for obtaining such a powder of spherical crosslinkable polyamide particles. The present invention also relates to the production of articles by SLS, followed by a crosslinking step, using said powder of spherical crosslinkable polyamide particles.