Patent ID: 7863355
Filing Date: 2011-01-04
Classification: C01P,C08K,C08L,C09C,C09K

Abstract:
1. A moulding material for the production of highly flame resistant articles with a matrix formed from a thermoplastic matrix with a particulate pigment dispersed therein wherein the pigment is light-sensitive and changes colour under the influence of laser light and wherein the pigment is a reaction product of at least one halogen-free flame retardant organic nitrogen base with at least one of (i) and (ii) where (i) is at least one mixed salt with at least two different cations, and (ii) is a mixture of salt type compounds which on heating can be transformed into at least one salt type compound with at least two different cations, as in (i); wherein in variations (i) and (ii), at least one of the cations is selected from a group (A) of elements Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Ag, Sn, Sb, La, Pr, Ta, W and Ce and at least one further cation is selected from a group (B) of elements from periods 3 to 6 of main groups II and III, periods 5 and 6 of main group IV and periods 4 and 5 of subgroups III to VIII and the lanthanides of the periodic table of the elements.