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16 条记录 (耗时 0.022 秒)

    Injection molding method for (meth)acrylate copolymers having tertiary ammonium groups
    3.
    发明授权
    Injection molding method for (meth)acrylate copolymers having tertiary ammonium groups 失效
    具有叔铵基的（甲基）丙烯酸酯共聚物的注射成型方法

    公开(公告)号：US06576255B1

    公开(公告)日：2003-06-10

    申请号：US09889565

    申请日：2001-07-30

    申请人： Hans-Ulrich Petereit ,  Thomas Beckert ,  Manfred Assmus ,  Werner Hoess ,  Wolfgang Fuchs ,  Hartmut Schikowsky

    发明人： Hans-Ulrich Petereit ,  Thomas Beckert ,  Manfred Assmus ,  Werner Hoess ,  Wolfgang Fuchs ,  Hartmut Schikowsky

    IPC分类号： A61K948

    CPC分类号： A61K9/1635 ,  A61J3/071

    摘要： The invention relates to a process for making molded articles by means of injection molding with the process steps of a) melting of a (meth)acrylate copolymer, which is composed of 30 to 80 wt % of radical-polymerized C1 to C4 alkyl esters of acrylic or methacrylic acid and 70 to 20 wt % of (meth)acrylate monomers with a tertiary ammonium group in the alkyl residue, wherein the (meth)acrylate copolymer is present in a mixture with 1 to 70 wt % of a plasticizer and a desiccant in the ratio of 1:1 to 1:20 and also with 0.05 to 5 wt % of a release agent, and further standard additives or adjuvants and if necessary even a pharmaceutical active principle can also be present in the mixture, and before the mixture is melted it has a content of more than 0.5 wt % of low-boiling constituents with a vapor pressure of at least 1.9 bar at 120° C., b) degassing of the mixture in the thermoplastic condition at temperatures of at least 120° C., whereby the content of low-boiling constituents with a vapor pressure of at least 1.9 bar at 120° C. is lowered to at most 0.5 wt % and c) injection of the melted and degassed mixture into the mold cavity of an injection-molding die, wherein the mold cavity has a temperature which lies at least 10° C. below the glass transition temperature of the (meth)acrylate copolymer, cooling of the melt mixture and removal of the obtained molded article from the mold.

    摘要翻译： 本发明涉及一种通过注射成型制备模塑制品的方法，其工艺步骤为：a）熔融（甲基）丙烯酸酯共聚物，其由30至80重量％的自由基聚合的C1至C4烷基酯组成 丙烯酸或甲基丙烯酸和70〜20重量％的烷基残基中具有叔铵基的（甲基）丙烯酸酯单体，其中（甲基）丙烯酸酯共聚物与1至70重量％的增塑剂和干燥剂 以1:1至1:20的比例和0.05至5重量％的脱模剂，并且进一步的标准添加剂或佐剂，并且如果需要甚至药物活性成分也可以存在于混合物中，并且在混合物之前 熔化，其含量大于0.5重量％的低沸点成分，蒸气压在120℃下至少为1.9巴，b）在热塑性条件下，在至少120℃的温度下脱气混合物 ，其中低沸点成分含量为a 在120℃下至少1.9巴的蒸汽压降低至至多0.5重量％，和c）将熔融和脱气的混合物注射到注射成型模具的模腔中，其中模腔具有位于 在（甲基）丙烯酸酯共聚物的玻璃化转变温度以下至少10℃，冷却熔融混合物并从模具中除去得到的模塑制品。

    Poly (meth) acrylamides with improved color stability under thermal stress
    4.
    发明授权
    Poly (meth) acrylamides with improved color stability under thermal stress 失效
    聚（甲基）丙烯酰亚胺，在热应力下具有改善的颜色稳定性

    公开(公告)号：US5837780A

    公开(公告)日：1998-11-17

    申请号：US759131

    申请日：1996-12-02

    申请人： Klaus Albrecht ,  Werner Hoess ,  Hartmut Schikowsky

    发明人： Klaus Albrecht ,  Werner Hoess ,  Hartmut Schikowsky

    IPC分类号： C08F8/00 ,  C08K3/32 ,  C08L33/00 ,  C08L33/04 ,  C08L33/12 ,  C08L33/24 ,  C08F8/32

    CPC分类号： C08K3/32 ,  C08F8/48

    摘要： Molding compositions MC having a reduced tendency to yellow with thermal stress which consist of a polymer PM containing units of formula I: ##STR1## blending from 0.005-1 wt % of at least one reducing inorganic phosphorus compound IP selected from the group consisting of phosphinic and phosphonic acid and its alkali metal, alkaline-earth metal, a aluminum and ammonium salts, wherein the ammonium ion can be substituted with up to four C.sub.1 -C.sub.4 alkyl and/or C.sub.5 -C.sub.8 cycloalkyl groups, with the polymer PM after conclusion of the imidation reaction.

    摘要翻译： 具有降低的热应力黄色趋势的成型组合物MC由含有式I单元的聚合物PM组成：选自由次膦酸和膦酸及其碱金属，碱土金属组成的组的无机磷化合物 金属，铝和铵盐，其中铵离子可被至多四个C 1 -C 4烷基和/或C 5 -C 8环烷基取代，与酰亚胺化反应结束后的聚合物PM反应。

    Process for the short-time treatment of a plastic melt with a liquid treatment agent and the plastic thus produced
    5.
    发明授权
    Process for the short-time treatment of a plastic melt with a liquid treatment agent and the plastic thus produced 失效
    用液体处理剂短时间处理塑料熔体的方法和由此生产的塑料

    公开(公告)号：US5548033A

    公开(公告)日：1996-08-20

    申请号：US379999

    申请日：1995-01-27

    申请人： Heinz Vetter ,  Werner Hoess ,  Joachim Dutschke ,  Hartmut Schikowsky

    发明人： Heinz Vetter ,  Werner Hoess ,  Joachim Dutschke ,  Hartmut Schikowsky

    IPC分类号： B29B7/38 ,  B29B7/84 ,  B29B7/88 ,  B29B13/00 ,  B29C47/52 ,  B29K33/04 ,  C08F6/00 ,  C08F8/32

    CPC分类号： B29C47/527 ,  B29C47/0009

    摘要： A plastic melt is treated for a short-time with a liquid treatment agent under pressure, it is divided into defined subquantities, individual subquantities are brought into contact with a treatment agent and combined for a residence time of less than one second with portions of at least one other subquantity, and portions of the mixture thus formed are separated and combined with another subquantity; the steps of dividing and combining the mixture are repeated several times at intervals of less than one second until an intimate mixture of the plastic melt and the treatment agent has formed, allowing the preparation of especially homogeneously structured thermoplastic materials, e.g., poly(methacrylalkylimide) plastics, which are compatible with poly(methyl methacrylate).

    摘要翻译： 塑料熔体在压力下用液体处理剂短时间处理，分为限定的量级，各个次要物质与处理剂接触并结合使用少于1秒的停留时间，其中部分 至少一个其他的次数，并且如此形成的混合物的部分与另一个次级分离并组合; 将混合物分离和组合的步骤以小于1秒的间隔重复数次，直到形成塑料熔体和处理剂的紧密混合物，允许制备特别均匀结构的热塑性材料，例如聚（甲基丙烯酸烷基酯酰亚胺） 塑料，其与聚（甲基丙烯酸甲酯）相容。

    Method for reducing the polymer content of effluent during the drainage of polymer/water mixtures
    6.
    发明授权
    Method for reducing the polymer content of effluent during the drainage of polymer/water mixtures 失效
    降低聚合物/水混合物排水过程中流出物聚合物含量的方法

    公开(公告)号：US06613871B2

    公开(公告)日：2003-09-02

    申请号：US10089082

    申请日：2002-04-10

    申请人： Werner Hoess ,  Hartmut Schikowsky ,  Krzysztof Sado

    发明人： Werner Hoess ,  Hartmut Schikowsky ,  Krzysztof Sado

    IPC分类号： C08F600

    CPC分类号： C08F6/22 ,  B29B15/04 ,  B29C47/0014 ,  B29C47/0021 ,  B29C47/762 ,  B29K2105/0064

    摘要： The invention relates to a method for reducing the polymer content in the wastewater from dewatering of two-phase liquid mixtures comprising a thermoplastic plastic melt and an aqueous phase by coagulating the plastic melt and pressing the water out of the melt cake in an extruder system, characterized in that superheated steam with a temperature of at least 280° C. is injected immediately after introduction of the two-phase liquid mixture into the extruder system.

    摘要翻译： 本发明涉及一种降低废水中聚合物含量的方法，该方法是通过将塑料熔体凝结并挤压出挤出机系统中的熔饼，将包含热塑性塑料熔体和水相的两相液体混合物脱水， 其特征在于，在将两相液体混合物引入挤出机系统之后，立即注入温度至少为280℃的过热蒸汽。

    Homogeneous mixture of polymethacrylimide polymers
    8.
    发明授权
    Homogeneous mixture of polymethacrylimide polymers 失效
    聚异丁烯酰胺聚合物均质混合物

    公开(公告)号：US5135985A

    公开(公告)日：1992-08-04

    申请号：US698291

    申请日：1991-05-10

    申请人： Werner Hoess ,  Heinz Vetter ,  Jens-Dieter Fischer ,  Hartmut Schikowsky

    发明人： Werner Hoess ,  Heinz Vetter ,  Jens-Dieter Fischer ,  Hartmut Schikowsky

    IPC分类号： C08L33/00 ,  C08L33/24

    CPC分类号： C08L33/24

    摘要： Homogeneous polymer mixtures of polymethacrylimides consist of a component (A), composed of from 30 to 90 percent by weight of methacrylalkylimide units and from 3.5 to 10 percent by weight of methacrylic acid units, and of a component (B1) or (B2) having from 10 to 50 percent by weight more methacrylalkylimide units than component (A), component (B1) having a degree of imidization of less than 95 percent and containing from 3.5 to 10 percent by weight of methacrylic acid units, and component (B2) having a degree of imidization greater than 95 percent and containing less than 3.5 percent by weight of methacrylic acid units.

    摘要翻译： 聚甲基丙烯酰亚胺的均匀聚合物混合物由组分（A）组成，组分（A）由30至90重量％的甲基丙烯酸烷基酰亚胺单元和3.5至10重量％的甲基丙烯酸单元组成，组分（B1）或（B2） 10重量％以上50重量％以上的成分（A），亚胺化度小于95重量％，含有3.5〜10重量％甲基丙烯酸单元的成分（B1），和（B2）成分 亚胺化程度大于95％，含有少于3.5％（重量）的甲基丙烯酸单元。

    Two-step method for dehydrating plastic dispersions
    9.
    发明授权
    Two-step method for dehydrating plastic dispersions 失效
    脱水塑料分散体的两步法

    公开(公告)号：US06287470B1

    公开(公告)日：2001-09-11

    申请号：US09403770

    申请日：1999-12-13

    申请人： Heinz Vetter ,  Hartmut Schikowsky ,  Werner Hoess

    发明人： Heinz Vetter ,  Hartmut Schikowsky ,  Werner Hoess

    IPC分类号： B01D1900

    CPC分类号： B29B15/04 ,  B29B7/40 ,  B29B7/46 ,  B29B7/842 ,  B29B7/845 ,  B29B9/06 ,  B29C47/0009 ,  B29C47/50 ,  B29C47/76 ,  C08F6/005 ,  C08F6/22

    摘要： The invention relates to a method for dehydrating a two-phase liquid mixture consisting of a thermoplastic synthetic melt phase and an aqueous phase, comprising the following steps: a) coagulation of the two-phase liquid mixture in a first extruder; b) dehydration of the coagulate in a twin screw extruder with a de-watering zone and screws working in an opposite direction; c) separation of constituents by degasifying. The inventive method is characterized in that a single screw extruder or a twin screw extruder with screws working in the same direction is used as a first extruder in step a).

    摘要翻译： 本发明涉及一种使由热塑性合成熔融相和水相组成的两相液体混合物脱水的方法，包括以下步骤：a）在第一挤出机中使两相液体混合物凝结; b）在具有脱水区域的双螺杆挤出机中将凝结物脱水并沿相反方向工作的螺杆; c）通过脱气分离成分。 本发明的方法的特征在于，在步骤a）中使用具有沿相同方向工作的螺杆的单螺杆挤出机或双螺杆挤出机作为第一挤出机。

    Poly (meth) acrylamides with improved color stability under thermal stress
    10.
    发明授权
    Poly (meth) acrylamides with improved color stability under thermal stress 失效
    聚（甲基）丙烯酰胺，在热应力下具有改善的颜色稳定性

    公开(公告)号：US06040387A

    公开(公告)日：2000-03-21

    申请号：US75880

    申请日：1998-05-12

    申请人： Klaus Albrecht ,  Werner Hoess ,  Hartmut Schikowsky

    发明人： Klaus Albrecht ,  Werner Hoess ,  Hartmut Schikowsky

    IPC分类号： C08F8/00 ,  C08K3/32 ,  C08L33/00 ,  C08L33/04 ,  C08L33/12 ,  C08L33/24 ,  G08F8/32

    CPC分类号： C08K3/32 ,  C08F8/48

    摘要： Molding compositions MC having a reduced tendency to yellow with thermal stress which consist of a polymer PM containing units of formula I: ##STR1## blending from 0.005-1 wt % of at least one reducing inorganic phosphorus compound IP selected from the group consisting of phosphinic and phosphonic acid and its alkali metal, alkaline-earth metal, aluminum and ammonium salts, wherein the ammonium ion can be substituted with up to four C.sub.1 -C.sub.4 alkyl and/or C.sub.5 -C.sub.8 cycloalkyl groups, with the polymer PM after conclusion of the imidation reaction.

    摘要翻译： 具有降低的热应力黄色趋势的成型组合物MC由含有式I单元的聚合物PM组成：将0.005-1重量％的至少一种还原性无机磷化合物IP共混，所述还原性无机磷化合物IP选自次膦酸和膦酸 及其碱金属，碱土金属，铝和铵盐，其中铵离子可被至多四个C 1 -C 4烷基和/或C 5 -C 8环烷基取代，与酰亚胺化反应结束后的聚合物PM反应。