Sunpor Kunststoff Gesellschaft M.b.h.

Sunpor Kunstoff Ges. M.b.h.

Sunpor Kunststoff Ges.m.b.h

Sunpor Kunststoff Gmbh

Roman Eberstaller

Joachim Kuhn

Gerhard Hintermeier

Mariacarla Arduini-Schuster

The present relates to flame-retardant expandable polymers and to polymer foams and to the use thereof. These flame-retardant expandable polymers and polymer foams can be contained in one or several pressurized containers. According to the present, at least one of the following phosphorus compounds is used as a flame retardant: phosphorus compound according to formula (Ia): (Ia) 10-hydroxy-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-OH); or the salts thereof according to formula (Ib): (Ib) (DOPO-OR); or the ring-opened hydrolysates thereof according to formula (Ic): (Ic).

Flame-retardant expandable polymers

Particulate, expandable styrene polymers capable of being processed into hard foamed plastic materials of a small density and containing, therefore, at least one foaming agent comprise at least aluminum in a particulate form for improving their thermal insulation properties. The styrene polymer particles comprise, after their expansion, a fine cell structure and contain the aluminum particles incorporated in a homogeneous distribution as an infrared ray reflecting material. The main proportion of these aluminum particles has the shape of platelets having a size between 1 and 15 &mgr;m. Styrene polymer particles produced in this manner can be foamed into plastic materials of foamed polystyrene particles which have a density of 30 g/l in maximum and improved heat insulation characteristics.

Particulate-shaped, expandable styrol polymers and method for the production thereof

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Obergrafendorf, Austria

Roman Eberstaller