发明授权
US3981936A Method for the preparation of bis-(bromomethyl)-tetrachlorobenzenes and
their use as flame-proofing agents
失效
双(溴甲基) - 四氯苯的制备方法及其作为防火剂的用途
- 专利标题: Method for the preparation of bis-(bromomethyl)-tetrachlorobenzenes and their use as flame-proofing agents
- 专利标题(中): 双(溴甲基) - 四氯苯的制备方法及其作为防火剂的用途
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申请号: US455153申请日: 1974-03-27
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公开(公告)号: US3981936A公开(公告)日: 1976-09-21
- 发明人: Egon Petersen , Werner Schmidt , Klaus-Dieter Steffen
- 申请人: Egon Petersen , Werner Schmidt , Klaus-Dieter Steffen
- 申请人地址: DT Troisdorf
- 专利权人: Dynamit Nobel Aktiengesellschaft
- 当前专利权人: Dynamit Nobel Aktiengesellschaft
- 当前专利权人地址: DT Troisdorf
- 优先权: DT2316204 19730331
- 主分类号: C08L67/00
- IPC分类号: C08L67/00 ; C07C17/20 ; C08K5/00 ; C08K5/02 ; C08K5/03 ; C08K13/02 ; C08L1/00 ; C08L7/00 ; C08L21/00 ; C08L23/00 ; C08L27/00 ; C08L33/00 ; C08L33/02 ; C08L51/00 ; C08L51/02 ; C08L77/00 ; C08L101/00 ; C07C25/14
摘要:
A process for preparing a bis-(bromomethyl)-tetrachlorobenzene which comprises contacting a bis-(chloromethyl)-tetrachlorobenzene with a bromide of an element of the first to the third group of the Periodic Table, preferably in a solvent of the bis-(chloromethyl)-tetrachlorobenzene which solvent is a non-solvent for the bis-(bromomethyl)-tetrachlorobenzene being prepared; a stabilized polymeric composition comprising a polymer and a bis-(bromomethyl)-tetrachlorobenzene, preferably containing additionally a compound of antimony or boron.
公开/授权文献
- US6158363A Apparatus for dispensing particles 公开/授权日:2000-12-12
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