Abstract:
Melamine/formaldehyde foams which contain 0.01 to 45% by weight of a particulate filler having a median particle diameter in the range from 5 µm to 3 mm, wherein the % by weight is based on the total weight of the melamine/formaldehyde precondensate and filler used for the foam production.
Abstract:
The invention relates to a galvanic element containing an open-pored foamed plastic based on a melamine/formaldehyde foamed plastic, the cell pores being completely or partially filled with a free-flowing electrolyte. The invention also relates to a method for producing a battery, accumulator or fuel cell.
Abstract:
The invention relates to a galvanic element containing an open-pored foamed plastic based on a melamine/formaldehyde foamed plastic, the cell pores being completely or partially filled with a free-flowing electrolyte. The invention also relates to a method for producing a battery, accumulator or fuel cell.
Abstract:
The invention relates to a liquid-impregnated foamed plastic part consisting of a) between 1 and 10 % by volume of an aminoplastic-based, open-pored foamed plastic and b) between 90 and 99 % by volume of a component that is liquid at 25°C, such as aromatic or aliphatic hydrocarbons, alcohols, ketones, water or aqueous dispersions, and to the uses of said part for transporting or metering liquids, for freeze-explosion purposes, for projectile energy absorption or as a latent heat accumulator.
Abstract:
The invention relates to a foam material that is produced from a hydrophobic or oloephobic, open-pored foam matrix. Said matrix is impregnated with a substance consisting essentially of a polyvinylidene halide (co)polymer, which can optionally contain additional substituents and also optionally of a fluorocarbon resin and/or a silicone resin. The invention also relates to a method for producing said foam material.
Abstract:
The invention relates to foams and molded parts made of foamed supporting materials that are selected from the group consisting of polyurethane resins, polyester resins, epoxides, as well as non-woven fabrics, woven materials, and open-cell two- and three-dimensional networks that consist of mineral, animal, plant, and chemical (natural/synthetic) fibers or mixtures thereof containing melamine/formaldehyde resin as a foaming reactive resins.
Abstract:
A process for producing an elastic silicate foam by foaming a mixture containing from 10 to 80% by weight of an aqueous dispersion A) of SiO 2 particles which have an average particle diameter in the range from 1 to 100 nm, from 5 to 30% by weight of a polymer B) dissolved in water, from 10 to 50% by weight of a blowing agent C), from 1 to 5% by weight of an emulsifier D), from 0.01 to 5% by weight of a crosslinker E) which is capable of reacting with the polymer B), and also the foam which can be obtained by the process and its use.