TREA

Colin R. Tweedale

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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyisocyanurate rigid foams
    • Patent number 4,996,241
    • Issue date Feb 26, 1991
    • Imperial Chemical Industries PLC
    • Berend Eling
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...