发明授权
- 专利标题: Process for preparing liquid diphenylmethane diisocyanate
- 专利标题(中): 制备液体二苯基甲烷二异氰酸酯的方法
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申请号: US520545申请日: 1995-08-28
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公开(公告)号: US5610408A公开(公告)日: 1997-03-11
- 发明人: Toshiaki Imokawa , Yoshiharu Kato
- 申请人: Toshiaki Imokawa , Yoshiharu Kato
- 申请人地址: JPX Amagasaki
- 专利权人: Sumitoma Bayer Urethane Co., Ltd.
- 当前专利权人: Sumitoma Bayer Urethane Co., Ltd.
- 当前专利权人地址: JPX Amagasaki
- 优先权: JPX6-243516 19940830
- 主分类号: C07C265/14
- IPC分类号: C07C265/14 ; C07C263/18 ; C07C267/00 ; C07F9/145 ; C09K3/00
摘要:
A process for preparing a liquid MDI, which comprises adding, to MDI, a phospholine catalyst and a phosphorous acid ester of a specified formula and conducting a carbodiimidization reaction.
公开/授权文献
- US4515379A Wheel truck and roller assembly 公开/授权日:1985-05-07
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