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Preparation of high-impact polystyrene resin involves reacting conjugated diene, isoprene, butadiene, styrene/isoprene/butadiene terpolymer rubber-integrated rare-earth catalytic system, chain transfer agent and initiator. 专利
申请日期: 2014-01-01, 公开日期: 2014-08-06
作者:  LI L LI Y LI T XU Q WANG Y
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/11
Method of producing optical waveguide system, optical device and optical coupler employing the same, optical network and optical circuit board 专利
专利号: US6081632, 申请日期: 2000-06-27, 公开日期: 2000-06-27
作者:  YOSHIMURA, TETSUZO;  SOTOYAMA, WATARU;  MOTOYOSHI, KATSUSADA;  ISHITSUKA, TAKESHI;  TSUKAMOTO, KOJI
收藏  |  浏览/下载:17/0  |  提交时间:2019/12/24


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