会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • VERFAHREN ZUR HERSTELLUNG VON THERMOPLASTEN
    • 用于生产热塑性
    • EP0928309B1
    • 2001-06-13
    • EP97910284.5
    • 1997-09-12
    • BASF AKTIENGESELLSCHAFT
    • GÜNTHERBERG, NorbertHOFMANN, JürgenMAILAHN, ElmarOHLIG, HilmarCZAUDERNA, BernhardGRABOWSKI, SvenBUS, Klaus
    • C08J3/205C08L51/04B29B13/06B29C47/40B29C47/64B29C47/76
    • B29B13/06B29C47/0011B29C47/0019B29C47/0023B29C47/40B29C47/64B29C47/76C08J3/205C08L51/04
    • A process is disclosed for producing thermoplastics modified to be impact-resistant or polymer blends containing such modified thermoplastics. The thermoplastics or polymer blends contain: (A) 5 to 95 wt % of at least one water-wet elastomer component A which contains up to 60 wt % residual water; (B) 5 to 95 wt % of at least one thermoplastic polymer B; (C) 0 to 95 wt % of at least another polymer C; and (D) 0 to 70 wt % additives D. The elastomer component A is mixed with the thermoplastic polymer B, if available with the other polymer C and if available with the additives D in a screw-machine while mechanically dewatering the elastomer component A. The process is characterised in that components A, B, C and D are supplied to an extruder with at least two screws that rotate in the same or opposite directions and have a diameter Dscrew. Seen in the feeding direction (downstream), the extruder substantially consists of at least one dosing section in which the elastomer component A is supplied to the extruder by a dosing device; at least one squeezing section for dewatering the elastomer component A having at least one pressure element and at least a corresponding dewatering opening located upstream of the (first) pressure element at a distance therefrom equal to at least one screw diameter Dscrew; at least one feeding section in which the thermoplastic polymer B is fed into the extruder as a molten mass; at least one plasticising section fitted with mixing and/or kneading elements; at least one degassing section with at least one degassing hole in which the residual water is removed as steam; and an extraction zone. The water expelled through the dewatering openings is partially or totally present in the liquid phase, and components C and/or are supplied together or separately, either together with components A and/or B or separately from A and B in one or more of the above-mentioned extruder sections.
    • 4. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON THERMOPLASTEN
    • 用于生产热塑性
    • EP0928309A1
    • 1999-07-14
    • EP97910284.0
    • 1997-09-12
    • BASF AKTIENGESELLSCHAFT
    • GÜNTHERBERG, NorbertHOFMANN, JürgenMAILAHN, ElmarOHLIG, HilmarCZAUDERNA, BernhardGRABOWSKI, SvenBUS, Klaus
    • B29B7B29B13B29C47B29C63C08J3C08J5C08L21C08L51
    • B29B13/06B29C47/0011B29C47/0019B29C47/0023B29C47/40B29C47/64B29C47/76C08J3/205C08L51/04
    • A process is disclosed for producing thermoplastics modified to be impact-resistant or polymer blends containing such modified thermoplastics. The thermoplastics or polymer blends contain: (A) 5 to 95 wt % of at least one water-wet elastomer component A which contains up to 60 wt % residual water; (B) 5 to 95 wt % of at least one thermoplastic polymer B; (C) 0 to 95 wt % of at least another polymer C; and (D) 0 to 70 wt % additives D. The elastomer component A is mixed with the thermoplastic polymer B, if available with the other polymer C and if available with the additives D in a screw-machine while mechanically dewatering the elastomer component A. The process is characterised in that components A, B, C and D are supplied to an extruder with at least two screws that rotate in the same or opposite directions and have a diameter Dscrew. Seen in the feeding direction (downstream), the extruder substantially consists of at least one dosing section in which the elastomer component A is supplied to the extruder by a dosing device; at least one squeezing section for dewatering the elastomer component A having at least one pressure element and at least a corresponding dewatering opening located upstream of the (first) pressure element at a distance therefrom equal to at least one screw diameter Dscrew; at least one feeding section in which the thermoplastic polymer B is fed into the extruder as a molten mass; at least one plasticising section fitted with mixing and/or kneading elements; at least one degassing section with at least one degassing hole in which the residual water is removed as steam; and an extraction zone. The water expelled through the dewatering openings is partially or totally present in the liquid phase, and components C and/or are supplied together or separately, either together with components A and/or B or separately from A and B in one or more of the above-mentioned extruder sections.