Use of specific polymers obtained by polycondensation or polyaddition, not provided for in a single one of main groups B29K459/00 - B29K485/00, as filler

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  • Information Patent Grant

    3647614

    • Patent number 3,647,614
    • Issue date Mar 7, 1972
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents