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公开(公告)号：WO1998025987A3
公开(公告)日：1998-06-18
申请号：PCT/EP1997007140
申请日：1997-12-10
Inventor： SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , KOBAYASHI, Yoshikazu , SHINMURA, Takaya , YAMAMOTO, Yojiro
IPC: C08G59/06
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