摘要:
The present invention concerns a process for producing a foam comprising at least one antimicrobial active, comprising the steps of: (1) preparing a solution or dispersion comprising at least one precondensate of the foam to be produced and at least one antimicrobial active, (2) foaming the precondensate by heating the solution or dispersion of step (1) to obtain a foam comprising at least one antimicrobial active, and (3) heat treating the foam obtained in step (2) at a temperature in the range from 120 to 300° C., a foam thus produced, a shaped article comprising such a foam and the use of such a foam for thermal and acoustical insulation of buildings and parts of buildings, thermal and acoustical insulation of the interiors of land, air and sea vehicles, low-temperature insulation, as an insulating wall cladding, as an insulating and shock-absorbing packaging material, as abrasive cleaning, grinding and polishing sponges, in the hygiene sector and as a filter material.
摘要:
The present invention relates to control system for a vehicle. The control system includes a manually operable control lever, such as a joystick, an actuator, a sensor and a control unit. The control lever sets a state variable of the vehicle. The actuator applies a force to the control lever. The sensor senses a vehicle parameter and transmits a parameter signal to the control unit. The control unit determines a current operating state of the vehicle. The control unit, depending on the present operating state of the vehicle, controls the actuator and causes it to apply a changed, predetermined force to the control lever, in order to make the operator aware of an unsafe operating state.
摘要:
The invention relates to a process for producing foam moldings from prefoamed foam particles which have a polymer coating in a mold under pressure, wherein the polymer coating comprises an athermanous compound and also foam moldings produced therefrom and their use.
摘要:
A process for producing foam moldings from prefoamed foam particles which have a polymer coating under pressure in a mold in the absence of steam, and also foam moldings produced therefrom and their use.
摘要:
The invention relates to a thermal insulation composite, comprising two metal sheets with a thermally-insulating core material, whereby, between the thermally-insulating core material and at least one of the metal sheets, a fire protection layer with an intumescent mass is arranged. The invention further relates to a method for production thereof and use thereof for the manufacture of storage or refrigerated warehouses.
摘要:
Moldable-foam moldings whose density is in the range from 8 to 200 g/l, obtainable via fusion of prefoamed foam beads composed of expandable pelletized filled thermoplastic polymer materials, and a process for preparing the expandable pelletized polymer materials.
摘要:
In a process for preparing expanded or expandable polymer beads based on biodegradable saturated polyesters made from at least one diol and from at least one dicarboxylic acid, A. polymer pellets are dispersed in a liquid, B. a volatile blowing agent is injected into the dispersion and made to impregnate the pellets at an elevated temperature, C. the pressure on the dispersion is reduced at an elevated temperature, whereupon the pellets comprising blowing agent expand to give foam, and, respectively, D. the pellets are isolated from the liquid.
摘要:
The invention relates to expandable olefin bead polymers which comprise a blowing agent with a boiling point of from −5 to 150° C., selected from the group consisting of alkanes, alkanols, ketones, ethers and esters. The particles are unfoamed and have a bulk density above 500 g/l, and can be foamed to a bulk density below 200 g/l after storage for one hour at room temperature in free contact with the atmosphere. They are prepared by impregnating polyolefin pellets in suspension in a pressure vessel with the blowing agent, cooling the batch below 100° C., reducing the pressure and isolating the particles.
摘要:
A process for preparing expandable particulate styrene polymers wherein from 5 to 50% by weight of expanded graphite and also, if desired, from 2 to 20% by weight of a phosphorus compound, are present as flame retardants, by suspension polymerization of styrene in the presence of the flame retardants.
摘要:
The invention relates to a process for preparing styrene polymers comprising water as sole blowing agent, by polymerizing styrene in aqueous suspension. The polymerization is carried out in the presence of from 5 to 30% by weight of recycled EPS material dissolved in styrene and comprising customary coating agents deriving from production of the EPS.