Amorphous, transparent polyamide compositions and articles having reduced flammability
AssigneeEMS-Inventa AG
InventorsHans Dalla Torre, Manfred Hewel
Life of this patent
Estimating the term…
Loading patent…
AssigneeEMS-Inventa AG
InventorsHans Dalla Torre, Manfred Hewel
Estimating the term…
A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive so that it is film-free, includes at least one polyamide which contains cycloaliphatic monomer units and which is amorphous and transparent; and a flame-retardant additive which is present in an amount effective to reduced flammability of the polyamide composition, which is dissolved in the at least one polyamide, and which is at least one alkyl phosphonic acid compound having a general formula: ##STR1## wherein R and R' each represent, independent of each other, an alkyl group having from 1 to 4 carbon atoms, and x=0 or 1. An article molded from this composition is transparent, has reduced flammability, and has reduced migration of flame-retardant additive so that it is film-free.
A polyamide composition which is amorphous and transparent, which has reduced flammability, and which has reduced migration of flame-retardant additive to the surface thereof so that it is surface residue-free, the polyamide composition comprising:
A method of reducing flammability of polyamides which are amorphous and transparent, the method comprising:
A method of reducing flammability of a molded article comprised of polyamides, the method comprising:
Dependencies are inferred from the claim text.