A scrubber and methods of forming a scrubber. The scrubber may include a foamed melamine resin, a first foamed polyurethane resin, a second foamed polyurethane resin, and a binder. The scrubber can be configured to exhibit the properties of both a scrubber and an eraser, and have a density ranging from 0.01 to 0.5 grams per cm.sup.3. A method of forming the scrubber may include the following steps: mixing foamed melamine resin particles, first foamed polyurethane resin particles, and second foamed polyurethane resin particles to form a first mixture; and mixing the first mixture with a binder to form a second mixture.

A compressible seal (400A) includes a compressible body (406) having a first surface (410) and a second surface. A pattern of discontinuous adhesive regions (412) is formed of an adhesive connected with at least one of the first surface (410) or the second surface of the compressible body (406). The compressible body (406) is operable to conform around the pattern of adhesive regions (412) to prevent fluid ingress when the compressible body (406) is compressed.

A compressible seal (400A) includes a compressible body (406) having a first surface (410) and a second surface. A pattern of discontinuous adhesive regions (412) is formed of an adhesive connected with at least one of the first surface (410) or the second surface of the compressible body (406). The compressible body (406) is operable to conform around the pattern of adhesive regions (412) to prevent fluid ingress when the compressible body (406) is compressed.

To provide a composite comprising a resin foam and a resin member different from the resin foam, which can suppress deterioration of the outer appearance of the resin member.

A composite comprising a resin foam formed by using a blowing agent containing 1-chloro-2,3,3,3-tetrafluoropropene, and a resin member different from the resin foam, containing a resin selected from the group consisting of a polycarbonate resin, a polystyrene resin, a polyphenylene ether resin, an acrylonitrile/butadiene/styrene resin and a styrene/acrylonitrile copolymer resin.

To provide a composite comprising a resin foam and a resin member different from the resin foam, which can suppress deterioration of the outer appearance of the resin member.

A composite comprising a resin foam formed by using a blowing agent containing 1-chloro-2,3,3,3-tetrafluoropropene, and a resin member different from the resin foam, containing a resin selected from the group consisting of a polycarbonate resin, a polystyrene resin, a polyphenylene ether resin, an acrylonitrile/butadiene/styrene resin and a styrene/acrylonitrile copolymer resin.

A composite panel structure of a polymer matrix core sandwiched by metal layers is described. The polymer matrix comprises 1-30 wt % fluoropolymer and 70-99 wt % of a flame retardant mineral. The fluoropolymer may be polyvinylidene fluoride (PVDF) with a high limiting oxygen index, which confers fire resistance properties to the polymer matrix and the composite panel structure. The composite panel structure may be used on the exterior of buildings and may fulfill building code requirements for the polymer matrix core being noncombustible as determined by ASTM E136 and CAN/ULC S114 compliance.

A composite panel structure of a polymer matrix core sandwiched by metal layers is described. The polymer matrix comprises 1-30 wt % fluoropolymer and 70-99 wt % of a flame retardant mineral. The fluoropolymer may be polyvinylidene fluoride (PVDF) with a high limiting oxygen index, which confers fire resistance properties to the polymer matrix and the composite panel structure. The composite panel structure may be used on the exterior of buildings and may fulfill building code requirements for the polymer matrix core being noncombustible as determined by ASTM E136 and CAN/ULC S114 compliance.

Low combustibility thermal insulation and methods of use and preparation thereof are described herein. The low combustibility thermal insulation may include a foam composite comprising a polymer material and a fire retardant component disposed in and/or adjacent to the polymer material; and a first controlled combustion layer adjacent to a first surface of the foam composite, wherein the foam composite and first controlled combustion layer are configured to control combustion of the insulation such that a total heat generated in a period of 10 minutes by the panel is equal to or less than 8 MJ/m.sup.2, as measured according to ISO 5660-1, and wherein a thermal conductivity of the insulation is equal to or less than 0.050 W/m K.

Low combustibility thermal insulation and methods of use and preparation thereof are described herein. The low combustibility thermal insulation may include a foam composite comprising a polymer material and a fire retardant component disposed in and/or adjacent to the polymer material; and a first controlled combustion layer adjacent to a first surface of the foam composite, wherein the foam composite and first controlled combustion layer are configured to control combustion of the insulation such that a total heat generated in a period of 10 minutes by the panel is equal to or less than 8 MJ/m.sup.2, as measured according to ISO 5660-1, and wherein a thermal conductivity of the insulation is equal to or less than 0.050 W/m K.

A porous composition comprising a porous organic polymer (POP) fiber having a diameter of at least 100 nm and a length of at least 1 mm and pores having a size within a range of 10 nm to 5 microns distributed over the surface and volume of the POP fiber, wherein the organic polymer is insoluble in water and may be selected from, e.g., polyolefins, polyesters, polyamides, and polyacrylonitrile. Also described herein is a method for producing a POP fiber comprising: (i) forming a precursor fiber from a blend of an organic polymer and lignin, wherein the lignin is present in the form of domains within the precursor fiber; and (ii) washing the precursor fiber with a solvent that dissolves the lignin to result in the POP fiber. Also described herein is a method for removing oil from an oil-water mixture comprising contacting the oil-water mixture with the POP fibers.