Structures having a polymer composition covalently bonded to the surface of the structure, methods of attaching the polymer to the surface of the structure, methods of decreasing the amount of microorganisms formed on a structure, and the like, are disclosed.

A nonwoven wipe having a reversible sanitizer indicator for multiple uses and recharges is provided. The nonwoven wipe includes a cloth-like nonwoven fabric coated with a reversible color-changing ink formulation. During use, the nonwoven wipe is impregnated with a quaternary ammonium compound-based sanitizer. When the level of free quaternary ammonium compound falls below a threshold level, the color-changing ink formulation changes from a first color to a second color, indicating the need to recharge the wipe. When the nonwoven wipe is recharged with sanitizer solution, the color-changing ink formulation changes back to the first color.

A substrate subject to degradation at temperatures above 100 C. is coated with a nanostructured ceramic coating having a thickness in excess of 100 nm, formed on a surface of the substrate, wherein a process temperature for deposition of the nanostructured coating does not exceed 90 C. The coating may be photocatalytic, photovoltaic, or piezoelectric. The coating, when moistened and exposed to ultraviolet light or sunlight, advantageously generates free radicals, which may be biocidal, deodorizing, or assist in degradation of surface deposits on the substrate after use. The substrate may be biological or organic, and may have a metallic or conductive intermediate layer.

Embodiments of the present disclosure, in one aspect, relate to structures having a polymer composition covalently bonded to the surface of the structure, methods of attaching the polymer to the surface of the structure, methods of decreasing the amount of microorganisms formed on a structure, materials, methods of attaching materials, and the like.

An insect repellent patch is disclosed of a size and weight compatible for wearing on the clothing or skin of a user. The patch has a gross area not in excess of 232 cm.sup.2 and bearing one or more insect repellents having a vapor pressure at 25 C. of not less than about 110.sup.6 mm Hg. The total amount of insect repellent is in an amount effective to provide practical mosquito personal area repellency. Kits of such patches, with instructions for use, and methods of providing practical personal area insect repellency are also disclosed.

Polymer compositions, methods of making polymer compositions, structures having the polymer composition covalently bonded to the surface of the structure, methods of attaching the polymer to the surface of the structure, methods of decreasing the amount of microorganisms formed on a structure, and the like, are disclosed.

An insect repellent patch is disclosed of a size and weight compatible for wearing on the clothing or skin of a user. The patch has a gross area not in excess of 232 cm.sup.2 and bearing one or more insect repellents having a vapor pressure at 25 C. of not less than about 110.sup.6 mm Hg. The total amount of insect repellent is in an amount effective to provide practical mosquito personal area repellency. Kits of such patches, with instructions for use, and methods of providing practical personal area insect repellency are also disclosed.

Structures having a polymer composition covalently bonded to the surface of the structure, methods of attaching the polymer to the surface of the structure, methods of decreasing the amount of microorganisms formed on a structure, and the like, are disclosed.

Novel composite materials are provided consisting of a substrate based on fibers of natural, mineral or vegetable origin, and of a mixture formed from a matrix of water-based resin and an expanding agent. The nature and the proportions of the various elements constituting these novel composite materials is also provided. A method of manufacture for making these novel composite materials starting from the constituent elements and the characteristics of the different steps of said method is also provided.

Composite structures composed of a fibril core and a polymeric coat and designed capable of encapsulating both hydrophobic and hydrophilic bioactive agents while retaining the activity of these agents are disclosed. Further disclosed are processes of preparing such composite structures, and medical devices and disposable articles made therefrom.