The invention relates to a bitumen additive comprising a wax dispersed in water, the water being in the continuous phase and the wax in the dispersed phase; the wax comprising a Fischer-Tropsch wax and one or more hydrocarbon waxes selected from the group comprising petroleum-based waxes, polyolefin waxes, or mixtures thereof; and an emulsifier. The invention extends to a method to produce a foamed bitumen composition by adding a bitumen additive to a bitumen feedstock in a bitumen foaming device to produce the foamed bitumen, and to a method to produce an asphalt mix by adding a bitumen feedstock and a bitumen additive to an aggregate in an asphalt mixer to produce the asphalt mix.

The invention provides moisture-resistant foam compositions comprising at least one fiber component; at least one foaming agent; at least one wax binder; and optionally at least one dispersant, where the at least one fiber component, the at least one foaming agent, the at least one wax binder, and when present the at least one dispersant are uniformly dispersed throughout a matrix, wherein the matrix is a foam.

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and articles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

The present invention aims to provide a thermoplastic polyester elastomer resin composition suitable for foam molded product which exhibits light weight, excellent rebound resilience and excellent surface smoothness. The present invention provides a thermoplastic polyester elastomer resin composition for counter-pressure foam molding, containing a thermoplastic polyester elastomer and a thickener, wherein the thermoplastic polyester elastomer is prepared by bonding a hard segment and a soft segment, wherein the hard segment consists of polyester constituted from aromatic dicarboxylic acid and aliphatic and/or alicyclic diol as constituting components, wherein the soft segment is at least one member selected from a group consisting of aliphatic polyether, aliphatic polyester and aliphatic polycarbonate, wherein the thermoplastic polyester elastomer has a soft segment content of 25 to 90% by mass, and wherein a content of the thickener is 0.05 to 4.5 parts by mass relative to 100 parts by mass of the thermoplastic polyester elastomer. The present invention also provides a foam molded product that includes a continuous phase formed of the thermoplastic polyester elastomer resin composition.

A fiber-reinforced aerogel is disclosed. The aerogel can include a porous organic polymer matrix and fibers included in the porous organic polymer matrix. The aerogel can include a thermal conductivity of less than or equal to 60 mWIm.Math.K at a temperature of 20° C., at least a bimodal pore size distribution with a first mode of pores having an average pore size of less than or equal to 50 nanometers (nm) and a second mode of pores having an average pore size of greater than 50 nm, and a planar shape having a thickness of 5 millimeters (mm) or less and is capable of being rolled up into a roll, wherein the fibers form a woven fiber matrix.

Polymeric based closed cell foams, such as shape memory polymer foams, contain bubbles. Making these bubbles continuous is called reticulation. Disclosed are embodiments of a device and method to controllably reticulate polymer-based closed cell foams by puncturing the membranes of these polymer-based closed cell foams.

The present application relates to a thermally expandable composition containing at least one peroxide cross-linking polymer, at least one peroxide, at least one polysaccharide and at least one endothermic, chemical blowing agent; as well as to shaped bodies containing said composition and to a method for sealing and filling voids in components, for strengthening or reinforcing components, in particular hollow components, and for bonding mobile components using shaped bodies of this type.

A chemical blowing agent for foaming a thermoplastic polymer, for example PVC plastisol or a polymer resin in an extrusion process, said chemical blowing agent comprising a functionalized particulate bicarbonate containing at least one additive, preferably excluding an exothermic blowing agent. The additive may be selected from the group consisting of polymers; inorganic salts; oils; fats; resin acids, any derivative thereof, and salts thereof; amino acids; fatty acids; carboxylic or polycarboxylic acids, soaps; waxes; in derivatives thereof (such as esters); salts thereof; or any combinations thereof. The particulate bicarbonate may be functionalized by spray-drying, coating, extrusion or co-grinding with at least one additive. The functionalized particulate bicarbonate may comprise 50 wt % to less than 100 wt % of the bicarbonate component, and 0.02-50 wt % of the additive. A foamable polymer composition comprising such chemical blowing agent. A process for manufacturing a foamed polymer, such as foamed PVC, comprising shaping and heating the foamable polymer composition, and a foamed polymer obtained by such process.

A chemical blowing agent for foaming a thermoplastic polymer, for example PVC plastisol or a polymer resin in an extrusion process, comprising a functionalized particulate bicarbonate containing at least one additive, preferably excluding an exothermic blowing agent. The additive may be selected from the group consisting of polymers; inorganic salts; oils; fats; resin acids, any derivative thereof, and salts thereof; amino acids; fatty acids; carboxylic or polycarboxylic acids, soaps; waxes; derivatives thereof; salts thereof; or any combinations thereof. The particulate bicarbonate may be functionalized by spray-drying, coating, extrusion or co-grinding with at least one additive. The functionalized particulate bicarbonate may comprise 50 wt % to less than 100 wt % of the bicarbonate component, and 0.02-50 wt % of the additive. A foamable polymer composition comprising such chemical blowing agent. A process for manufacturing a foamed polymer, such as foamed PVC, comprising shaping and heating the foamable polymer composition, and a foamed polymer obtained by such process.

A flexible foam composition comprising a flexible foam structure comprising a plurality of struts, and a plurality of fibers, where a majority of the fibers are associated with the struts. The fibers may be thermally conductive fibers. The fibers include, but are not necessarily limited to, homopolymer and/or copolymer fibers having a glass transition temperature (Tg) of −50° C. (−58° F.) or greater, carbon fibers, animal-based fibers, plant-based fibers, metal fibers, and combinations thereof. The presence of fibers can impart to the flexible foam composition greater indentation force deflection (IFD), greater static thermal conductivity, improved compression set, improved height retention or durability, and/or a combination of these improvements. The flexible foam composition may be polyurethane foam, latex foam, polyether polyurethane foam, viscoelastic foam, high resilient foam, polyester polyurethane foam, foamed polyethylene, foamed polypropylene, expanded polystyrene, foamed silicone, melamine foam, among others.