Abstract:
The present invention relates to a method for the production of a particle based element, in particular a particle board or fiber board, wherein particles (2) are dispersed in a dispersing section (5) to form a particle mass (15), and a modification substance (13) is provided modifying the properties of the particle mass (15), such that particles (2) with accordingly modified properties are arranged in at least one predetermined region of the particle mass (15). The modification substance (13) is injected into the particles (2) before the particles (2) form the particle mass (15), wherein the modification substance (13) is injected into the particles (2) in an injection direction, which is inclined with respect to the flow direction (200) of the particle stream at the injection location. The invention further relates to an apparatus (1) for the production of a particle based element, a particle based element, and a further method for the production of a particle based element.
Abstract:
A system for producing an in-situ foam, which comprises the components from 50 to 98% by weight of one or more inorganic fillers A), from 1 to 48% by weight of one or more water-soluble, cationic polymers B), from 0.5 to 48% by weight of one or more surfactants C), from 0.01 to 5% by weight of one or more crosslinkers D) which are capable of reacting with the polymers B), from 0 to 20% by weight of one or more additives E), where the percentages by weight of the components A) to E) are based on the nonaqueous fraction and the sum of A) to E) is 100% by weight, process for producing an in-situ foam using the components of the system and foaming by means of a gas or a gas mixture and use for thermal insulation and filling of hollow spaces and hollow bodies.
Abstract:
Hyperbranched polycarbonates having stabilizing groups, prepared by reaction of (a) at least one compound having at least three alcoholic hydroxyl groups per molecule with (b) at least one reagent of the general formula I (c) and at least one reagent of the general formula X3-(A1)m-X4, where the variables are defined as follows: X1, X2 are identical or different and are selected from among halogen, C1-C10-alkoxy, C6-C10-aryloxy and O—C(═O)-halogen, X3 is a functional group selected from among OH, SH, NH2, NH—C1-C4-alkyl, isocyanate, epoxy, COOH, COOR12, C(═O)—O—C(═O), C(═O)—Cl, R12 is C1-C4-alkyl or C6-C10-aryl, A1 is a spacer or a single bond, m is zero or one. X4 is a group selected from among phenol groups, benzophenones, aromatic amines and nitrogen-comprising heterocycles, in each case substituted or unsubstituted.
Abstract:
A system for producing an in-situ foam, which comprises the components from 50 to 98% by weight of one or more inorganic fillers A), from 1 to 48% by weight of one or more water-soluble, cationic polymers B), from 0.5 to 48% by weight of one or more surfactants C), from 0.01 to 5% by weight of one or more crosslinkers D) which are capable of reacting with the polymers B), from 0 to 20% by weight of one or more additives E), where the percentages by weight of the components A) to E) are based on the nonaqueous fraction and the sum of A) to E) is 100% by weight, process for producing an in-situ foam using the components of the system and foaming by means of a gas or a gas mixture and use for thermal insulation and filling of hollow spaces and hollow bodies.
Abstract:
A system for producing an in-situ foam, which comprises the components from 50 to 98% by weight of one or more inorganic fillers A), from 1 to 48% by weight of one or more water-soluble, cationic polymers B), from 0.5 to 48% by weight of one or more surfactants C), from 0.01 to 5% by weight of one or more crosslinkers D) which are capable of reacting with the polymers B), from 0 to 20% by weight of one or more additives E), where the percentages by weight of the components A) to E) are based on the nonaqueous fraction and the sum of A) to E) is 100% by weight, process for producing an in-situ foam using the components of the system and foaming by means of a gas or a gas mixture and use for thermal insulation and filling of hollow spaces and hollow bodies.
Abstract:
Thermoplastic particle foams which have cells having a mean cell size in the range from 20 to 500 μm and in which the cell membranes have a nanocellular or fibrous structure having pore or fiber diameters below 1500 nm, and also processes for producing them.
Abstract:
Thermoplastic molding compositions comprisingA) from 10 to 69% by weight of a thermoplastic polyester B) from 30 to 79% by weight of an aluminum oxide C) from 0.01 to 10% by weight of an organic or inorganic acid or mixture of these D) from 0 to 10% by weight of D1) at least one highly branched or hyperbranched polycarbonate with an OH number of from 1 to 600 mg KOH/g of polycarbonate (to DIN 53240, part 2), or D2) at least one highly branched or hyperbranched polyester of AxBy type, where x is at least 1.1 and y is at least 2.1, or a mixture of these E) from 0 to 50% by weight of other additives, where the entirety of the percentages by weight of components A) to E) gives 100%.