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Laser-markable polymer moulding compositions

  • US 5,840,791 A
  • Filed: 05/15/1997
  • Issued: 11/24/1998
  • Est. Priority Date: 05/24/1996
  • Status: Expired due to Fees
First Claim
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1. Thermoplastic moulding compositions comprisingA) 99.995 to 30 parts by weight of thermoplastic polymer,B) 0.005 to 3 parts by weight of boric anhydride,C) 0 to 50 parts by weight of fillers and reinforcing materials,D) 0 to 60 parts by weight of flame retardant additives,E) 0 to 30 parts by weight of elastomer modifiers,F) 0 to 8 parts by weight of antimony trioxide,G) 0.4 to 3 parts by weight of copper(II) pyrophosphate hydrate.

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