Flame-retardant expandable polymers
AssigneeSunpor Kunststoff Gesellschaft M.B.H.
InventorsRoman Eberstaller, Gerhard Hintermeier
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Abstract
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): (ilc).
Claims26
Flame-retardant expandable polymerizates containing at least one propellant, characterized in that at least one of the following phosphorus compounds is contained as a flame retardant:
- phosphorus compound according to formula (Ia):
- 10-hydroxy-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-OH)
- or salts thereof according to formula (Ib):
- or ring-opened hydrolyzates thereof according to formula (Ic):
- wherein R in forumlas Ib and Ic is a residue.
Dependencies are inferred from the claim text.