THERMOPLASTIC POLYURETHANE RESIN FOR MELT SPINNING
    6.
    发明公开
    THERMOPLASTIC POLYURETHANE RESIN FOR MELT SPINNING 审中-公开
    热塑性聚氨酯树脂熔融纺丝

    公开(公告)号:EP1137830A1

    公开(公告)日:2001-10-04

    申请号:EP99958496.4

    申请日:1999-11-26

    摘要: There is disclosed a polyurethaneurea resin consisting of a polymer represented by the following chemical formula (I): [A-O-(O)C-NH-D-NH-C(O)-NH-D-NH-C(O)-O]n [I] wherein A represents an organopolyol residue having a number average molecular weight of approximately 500 to 5,000 and a weight average molecular weight/number average molecular weight (MW/MN) of 1.5 to 2.5 with the number of functional groups ranging from 1.8 to 2.2, D represents an aromatic organodiisocyanate residue ranging, in the number of functional groups, from 1.8 to 2.2, and n represents the number of repeat units. This resin is superior in thermal resistance and elastic recovery, so that it is suitable to melt spinning to make useful elastic fibers.