초록 ▼

Extruded foam boards produced using halogen-free blowing agents from a styrene polymer thermoplastic matrix having a Vicat softening temperature VST B 50 of at most 100°and a melt index MVI 200/5 of at least 5 ml/10 min are at least 20 mm, preferably more than 50 mm and in particular from 80 to 200

Extruded foam boards produced using halogen-free blowing agents from a styrene polymer thermoplastic matrix having a Vicat softening temperature VST B 50 of at most 100°and a melt index MVI 200/5 of at least 5 ml/10 min are at least 20 mm, preferably more than 50 mm and in particular from 80 to 200 mm, thick. Preferred blowing agents for producing the foam boards are carbon dioxide alone, as well as mixtures of carbon dioxide and ethanol and/or dimethyl ether.

대표청구항 ▼

An extruded foam board having a minimum thickness of 20 mm and a cross section of at least 50 cm2 produced using halogen-free blowing agents and comprising a thermoplastic matrix based on a styrene polymer, closed cells, which are free of halogen-containing gases and, optionally additives insoluble

An extruded foam board having a minimum thickness of 20 mm and a cross section of at least 50 cm2 produced using halogen-free blowing agents and comprising a thermoplastic matrix based on a styrene polymer, closed cells, which are free of halogen-containing gases and, optionally additives insoluble in the thermoplastic matrix, wherein the thermoplastic matrix has a Vicat softening temperature VST B 50 (in accordance with DIN 53 460) of at most 100°C. and a melt index MVI 200/5 (in accordance with DIN 53 735) of at least 5 ml/10 min.