Abstract:
The invention relates to a method for the production of shaped foam bodies, comprising: provision of a composition having foam particles and binder; introduction of the composition into a space which is bounded on at least one side by a pressing surface; and exertion of pressure onto the composition by means of the pressing surface. The method further irradiation of microwaves through the pressing surface into the composition, while pressure is being exerted onto the composition. The invention furthermore relates to a device for carrying out the method according to the invention, having: at least one pressing surface and a counterbearing surface lying opposite, between which a space extends which is adapted to receive a composition of foam particles and binder. The pressing surface and counterbearing surface adjoin the space directly. The device further comprises at least one stiff layer which locally or entirely is essentially transparent for microwaves and has a surface facing toward the space, which is connected to the pressing surface in such a way as to transmit force. The device also comprises a microwave radiator unit which is arranged on a side of the stiff layer remote from the space and is aligned relative to the space in order to irradiate microwaves into the space through the stiff layer. Lastly, the invention relates to a microwave radiator unit for the heat treatment of foam compositions. The microwave radiator unit comprises a multiplicity of microwave antennas which are arranged in a plane array and at least two of which are connected through a distributor device to a common microwave signal source, which feeds the at least two antennas.
Abstract:
Die Erfindung betrifft eine Schicht (A) enthaltend: a1 ) mindestens ein Trägermaterial a2) mindestens eine Verbindung ausgewählt aus intumeszierenden Massen, Blähgraphiten, Boraten, phosphathaltigen Verbindungen, silikathaltigen Verbindungen oder carbonisierende Substanzen wie Zucker oder Stärke und a3) mindestens ein Polymer herstellbar aus mindestens einem vinylaromatischen Monomeren.
Abstract:
Die vorliegende Erfindung betrifft ein expandierbares Styrolpolymerisat, enthaltend athermane Partikel, wobei die athermanen Partikel mit wenigstens einem Gummi umhüllt sind, ein Verfahren zur Herstellung des expandierbaren Styrolpolymerisats, ein expandiertes Styrolpolymerisat, enthaltend mit wenigstens einem Gummi umhüllte athermane Partikel, einen Schaumstoff, hergestellt aus dem expandierbaren Styrolpolymerisat, ein Verfahren zur Herstellung dieser Schaumstoffe und die Verwendung des Schaumstoffes zur Wärmedämmung, zur thermischen Isolierung von Maschinen und Haushaltsgeräten oder als Verpackungsmaterial.
Abstract:
Die Erfindung betrifft eine Beschichtungszusammensetzung, welche a) 20 bis 70 Gew.-%, insbesondere 30 bis 50 Gew.-% eines Tonminerals b) 20 bis 70 Gew.-%, insbesondere 30 bis 50 Gew.-% eines Alkali-Silikates c) 1 bis 30 Gew.-%, insbesondere 5 bis 20 Gew.-% eines verfilmenden Polymeren, enthält, sowie Verfahren zur Herstellung von beschichteten Schaumstoff Partikeln, sowie daraus hergestellte Schaumstoffformköper und deren Verwendung.
Abstract:
The invention relates to a coating composition containing a) 20 to 70 wt.-%, particularly 30 to 50 wt.-% of a clay mineral, b) 20 to 70 wt.-%, particularly 30 to 50 wt.-% of an alkali silicate, c) 1 to 30 wt.-%, particularly 5 to 20 wt.-% of a coating polymer, and a method for the production of coated foam particles, and foam bodies produced therefrom, and the use thereof.
Abstract:
The invention relates to a coating composition containing a) 20 to 70 wt.-%, particularly 30 to 50 wt.-% of a clay mineral, b) 20 to 70 wt.-%, particularly 30 to 50 wt.-% of an alkali silicate, c) 1 to 30 wt.-%, particularly 5 to 20 wt.-% of a coating polymer, and a method for the production of coated foam particles, and foam bodies produced therefrom, and the use thereof.
Abstract:
The invention relates to a coating composition, to foam particles coated therewith, to a method for producing foam bodies, and to the use thereof.
Abstract:
The present invention relates to an expandable styrene polymer containing athermanous particles, said athermanous particles being enveloped by at least one rubber, to a method for producing the expandable styrene polymer, to an expanded styrene polymer, containing athermanous particles enveloped by at least one rubber, to a foam produced from the expandable styrene polymer, to a method for producing said foams, and to the use of the foam for heat insulation, for the thermal insulation of machines and household appliances, or as a packaging material.
Abstract:
Process for producing a lignocellulosic substance, in which, based in each case on the lignocellulosic substance: A) 30% to 95% by weight of lignocellulose particles; B) 1% to 25% by weight of expanded plastics particles having a bulk density in the range from 10 to 150 kg/m3; C) 1% to 50% by weight of a binder selected from the group consisting of aminoplast resin, phenol-formaldehyde resin and organic isocyanate having at least two isocyanate groups, and optionally D) additives are mixed and are then pressed at elevated temperature and under elevated pressure, characterized in that component B) comprises a formaldehyde scavenger.