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.

A tape is provided which is adherable in the absence of an adhesive layer and is water-resistant, the tape comprising a fabric layer which includes a first side and a second side and a mixture of beeswax, tree resin and jojoba oil, the mixture infusing the fabric layer and forming a first outer layer on the first side and a second outer layer on the second side, wherein the tape is between about a half inch to four inches in width and can be cut to length.

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.

Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.

To provide a polyacetal resin composition which is good sliding characteristics and is less likely to produce the blister; a molded article; and a method for manufacturing the polyacetal resin composition. The polyacetal resin composition containing: (A) 100 parts by mass of a polyacetal resin; (B1) a polyolefin resin grafted with a silicone compound; (B2) a non-grafted silicone compound; and (C) 0.5 to 1.8 parts by mass of a polyolefinic lubricant, with a total of content of the silicone compound in the (B1) polyolefin resin and content of the (B2) non-grafted silicone compound, being adjusted to 0.6 to 2.5 parts by mass, per 100 parts by mass of the (A) polyacetal resin, and with (B1)/(B2), which is a ratio by mass of the content of the (B1) polyolefin resin and the content of the (B2) non-grafted silicone compound, being adjusted to 68/32 to 45/55.

A coating agent for oil seal comprising 10 to 90 parts by weight of a filler and 10 to 40 parts by weight of a wax, based on 100 parts by weight of isocyanate group-containing 1,2-polybutadiene, and being prepared as an organic solvent solution, wherein as the filler, silicone resin particles having a particle size of 0.5 to 10 μm and fluororesin particles having a particle size of 0.1 to 2 μm are each used at a ratio of 20 to 80 wt. % of the total filler amount. The coating agent for oil seal can exhibit excellent seal performance inherent in oil seal while maintaining excellent dispersibility of the coating agent, and can further achieve low torque characteristics.

An improved method forms and employs a wax to modify asphalt. The method includes: (a) selecting a solid polymeric material, (b) heating the solid polymeric material in an extruder to produce a molten polymeric material, (c) filtering the molten polymeric material, (d) placing the molten polymeric material through a chemical depolymerization process in a reactor to produce a depolymerized polymeric material, and (e) adding the depolymerized material to a pre-wax mixture to produce a polymer-modified asphalt. The addition of wax reduced the mixing time necessary to achieve improved polymer dispersion compared to the control formulation modified bitumen and reduced the viscosity of the neat bitumen. Pre-polymer addition of wax is detrimental to most properties of the resulting modified asphalt. Post-polymer addition improved viscosity reduction, higher softening point and improved dimensional stability.

The present invention relates to silane crosslinking catalyst comprising: —75 to 85 wt.-% of an olefin acrylate interpolymer and—15 to 25 wt.-% of a hindered amine light stabilizer (HALS) having a number average molecular weight Mn of 1500 to 4000 g/mol; and—optionally up to 5 wt.-% wax, wherein the silane crosslinking catalyst is free of tin, carboxylic acid(s) and sulphonic acid(s), all weight percentages with respect to the total weight of the silane crosslinking catalyst.