A composite membrane including at least one fabric, the membrane including a surface polymer layer, the surface polymer layer including silver and at least one polymer selected from the group formed by fluorinated polymers and silicones, and the membrane being such that silver is in the form of silver supported by a mineral matrix in powder form, the particle size of the matrix being strictly larger than 0.1 μm and strictly smaller than 20 μm. A method for manufacturing a membrane according to the invention. A use of a membrane according to the invention as a virucide.

A coated and varnished membrane, the membrane including at least one fabric having at least one face coated with at least one layer of polyvinyl chloride, and at least one varnish film on the coated face of the membrane, the varnish film including a polymeric binder and a mineral matrix in powder form including silver particles. A method for producing a membrane according to the invention. A use of a membrane according to the invention as a virucide.

A ripstop woven fabric woven from a combination of nylon yarn and polyester yarn. The nylon yarn forms between 40% to 80% of the woven fabric while the polyester yarn forms between 20% to 60% of the finished woven fabric. The fabric may be woven in a ripstop pattern. The face side of the ripstop fabric may be coated with one or more of a durable water repellent (DWR) and silicone coating, while the back side of the ripstop fabric is coated with a polyurethane coating. The ripstop fabric has an uncoated fabric weight range of between 23 and 40 GSM while the ripstop fabric has a coated fabric weight range of between 29 and 50 GSM.

This invention provides a silicone-coated fabric for airbags in which creases can be easily formed by applying heat and pressure, and that can be stored compactly. More specifically, the invention provides a silicone-coated fabric comprising a silicone-based resin coated on one surface of a synthetic fiber woven fabric, and a thermoplastic resin adhering to a non-silicone coated surface, which is not coated with the silicone-based resin, wherein the adhesive strength between the non-silicone coated surfaces is 0.01 to 100 N/cm.

An embodiment of a robotic fabric has a first fabric layer and an actuator that is configured to have a first state and a second state. A property of the first fabric layer is different when the actuator is in the first state as compared to the property of the first fabric layer when the actuator is in the second state.

A fouling-proof structure is applicable to synthetic leather or fabric and it includes an alcohol-resistant layer; and a water-based fouling-proof layer disposed on the alcohol-resistant layer, wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination, and the alcohol-resistant combination comprises polyurethane resin, wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination, and the water-based fouling-proof combination comprises polyurethane resin, water, polymerized siloxanes, water-based PTFE and silicone oil.

An aqueous binder composition is disclosed that includes 5.0% by weight to 50.0% by weight of a monomeric polyol having at least four hydroxyl groups, based on the total solids content of the aqueous binder composition; and at least 50.0% by weight of a cross-linking agent comprising a polymeric polycarboxylic acid having at least two carboxylic acid groups, based on the total solids content of the aqueous binder composition. The aqueous binder composition includes a ratio of molar equivalents of carboxylic acid groups to hydroxyl groups is between 0.15/1.0 and 2.23/1 and has a pH of 2.2 to 4.0 and a viscosity at 40% solids and 25° C. of 10 cP to 60 cP.

A method of maintaining soil strength and stability involves positioning a sheet of soil stabilization and strengthening material on a selected area where the strengthening and stabilization of the soil is desired. The sheet of soil stabilization and strengthening material includes a fabric layer that forms a base of the soil stabilization and strengthening material. The lower surface of the fabric layer is positioned against and engages the selected area. A moisture impervious layer is coupled to the upper surface of the fabric layer. A particulate aggregate material is embedded in the moisture impervious layer.

A water-based surface treatment agent is provided. The water-based surface treatment agent is suitable to be coated onto a surface of a synthetic leather. The water-based surface treatment agent at least includes waterborne polyurethane, silicone powder, and water. Based on 100 parts by weight of the water-based surface treatment agent, a content of the waterborne polyurethane is within 15 to 35 parts by weight, and a content of the silicone powder is within 3 to 20 parts by weight. A non-volatile matter content of the waterborne polyurethane is within a range from 20 wt % to 30 wt %. Each grain of the silicone powder has a particle size within a range from 0.2 μm to 15 μm, a specific gravity within a range from 0.9 to 1.5, a water content within a range from 0.1% to 0.5%, and a hardness (A) within a range from 30 to 90.

Devices and methods related to a chitosan-enhanced melamine sponge are provided. A method comprises grafting chitosan on the melamine sponge matrix via the chemical with two or more carboxyl groups; and crosslinking the chitosan with crosslinker under a heating procedure to make a more robust melamine sponge with a larger surface and smaller pores. The chitosan-enhanced melamine sponge is used to separate chemicals from water as a gravity flow-driven filter, and it can be compressed and backwashed for regeneration.