Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-10-14
2010-06-15
Szekely, Peter (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S099000, C524S101000
Reexamination Certificate
active
07737201
ABSTRACT:
A molding material for the production of highly flame resistant articles with a matrix formed from a thermoplastic and with a particulate flame retardant pigment dispersed therein, wherein under the influence of laser light the material changes color due to a change in color of the pigment or of the plastic matrix, and in that the pigment is a reaction product of at least one halogen-free flame retardant organic nitrogen base with a composition comprising at least one salt which can be reacted with the organic nitrogen base. The invention also includes a method for the preparation of a molding material as described above by the dispersion of a particulate flame retardant pigment to a plastic material, wherein under the influence of laser light the material changes color due to a change in color of the pigment or of the plastic matrix, and in that the pigment is a reaction product of at least one halogen-free flame retardant organic nitrogen base with a composition comprising at least one salt which can be reacted with the organic nitrogen base. The invention also includes a highly flame resistant and laser-writable plastic article comprising a formed material as described above.
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Fibla Vincens Mans
Futterer Thomas
Naegerl Hans-Dieter
Wissemborski Ruediger
Chemische Fabrik Budenheim KG
Dunn Michael L.
Szekely Peter
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