TREA

Roger Legras

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  • Seloignes, BE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aromatic polyetherketones
    • Patent number 4,657,990
    • Issue date Apr 14, 1987
    • Imperial Chemical Industries PLC
    • Daniel J. M. Daoust
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Fast crystallizing polyester compositions
    • Patent number 4,393,178
    • Issue date Jul 12, 1983
    • Imperial Chemical Industries PLC
    • Roger M. H. Legras
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for the crystallization of polycarbonates and products obta...
    • Patent number 3,965,064
    • Issue date Jun 22, 1976
    • Unibra S.A.
    • Jean Mercier
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...