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    Process for the preparation of polyurea greases
    1.
    发明授权
    Process for the preparation of polyurea greases 失效
    聚脲润滑脂的制备工艺

    公开(公告)号：US5314982A

    公开(公告)日：1994-05-24

    申请号：US945867

    申请日：1992-09-17

    申请人： Christian Rasp ,  Ralf Timmermann ,  Hermann Perrey ,  Bernhard Lehmann ,  Siegfried Kussi

    发明人： Christian Rasp ,  Ralf Timmermann ,  Hermann Perrey ,  Bernhard Lehmann ,  Siegfried Kussi

    IPC分类号： C08G18/32 ,  C10M119/24 ,  C10N20/06 ,  C10N50/10 ,  C10N70/00 ,  C08G18/08

    CPC分类号： C08G18/3228 ,  C08G18/2865 ,  C10M119/24 ,  C10M2217/042 ,  C10M2217/043 ,  C10N2220/02

    摘要： The invention relates to a new three-part process, which can also be employed on a large industrial scale, for the preparation of polyurea lubricating greases, which is characterised(a) in that polyureas which carry oleophilic groups are prepared by reaction of diisocyanates with amines either in the absence of a solvent on a reaction screw at 80.degree.-120.degree. C., preferably at 85.degree.-95.degree. C., (variant A) or in a toluene medium at 20.degree.-80.degree. C., preferably at 30.degree.-60.degree. C., (variant B),(b) in that, after complete reaction, the polyureas prepared according to (a) are ground in the solid, dry state to give powders (at least 70% by weight of the powder having particle sizes of about 100-400.mu.) and(c) in that the ground crude product, after being made into a "paste" (wetted) at elevated temperature in the base oil employed (10-30 minutes at 140.degree.-180.degree. C.) and cooled again to room temperature, is processed to a grease by complete homogenisation--if appropriate in several passes--in a high-pressure homogeniser under a pressure of 400-1,500 bar (spontaneous heating occurring up to about 100.degree. C.),greases having readily reproducible and essentially the same properties as in the case of the previously customary in situ manufacture being produced.

    摘要翻译： 本发明涉及一种新的三部分方法，其也可用于大型工业规模，用于制备聚脲润滑脂，其特征在于（a）通过二异氰酸酯与二异氰酸酯反应制备携带亲油基团的聚脲 在80°-120℃，优选85℃-95℃，（变体A）或在20-80℃的甲苯介质中，在反应螺杆上不存在溶剂的胺，优选 在30°-60℃，（变体B），（b），完全反应后，根据（a）制备的聚脲在固体，干燥状态下研磨，得到粉末（至少70重量％ 的颗粒大小为100-400微米的粉末）和（c）因为所研磨的粗产物在所用基础油中在升高的温度下制成“糊”（润湿）（在140℃下10-30分钟 DEG-180℃），并再次冷却至室温，通过完全均化（如果合适的话）在几种情况下加工成润滑脂 在400-1,500巴的压力（自发加热直到约100℃）下进入高压均化器，具有与先前常规原位制造情况相同的容易重复性和基本上相同性质的润滑脂 生产。

    Thermoplastic starch utilizing a biodegradable polymer as melting aid
    4.
    发明授权
    Thermoplastic starch utilizing a biodegradable polymer as melting aid 有权
    使用可生物降解聚合物作为熔融助剂的热塑性淀粉

    公开(公告)号：US06472497B2

    公开(公告)日：2002-10-29

    申请号：US09846463

    申请日：2001-04-30

    申请人： Jurgen Loercks ,  Winfried Pommeranz ,  Harald Schmidt ,  Ralf Timmermann ,  Ernst Grigat ,  Wolfgang Schulz-Schlitte

    发明人： Jurgen Loercks ,  Winfried Pommeranz ,  Harald Schmidt ,  Ralf Timmermann ,  Ernst Grigat ,  Wolfgang Schulz-Schlitte

    IPC分类号： C08G6400

    CPC分类号： F42B12/76 ,  B32B27/10 ,  C08J3/005 ,  C08L3/00 ,  C08L71/02 ,  C08L2201/06 ,  F42B5/30 ,  C08L2666/02 ,  C08L2666/26

    摘要： Thermoplastic starch compositions formed by converting native starch or starch derivatives into thermoplastic starch by at least one hydrophobic biodegradable polymer that functions as a plasticizer for starch. The hydrophobic biodegradable polymer may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to less than about 5% by weight based on the weight of the mixture.

    摘要翻译： 通过至少一种用作淀粉增塑剂的疏水性可生物降解聚合物将天然淀粉或淀粉衍生物转化为热塑性淀粉而形成的热塑性淀粉组合物。 疏水性生物可降解聚合物可以是选自以下列表中的聚合物：脂族聚酯，具有脂族和芳族嵌段的共聚酯，聚酯酰胺，聚酯氨酯，聚环氧乙烷聚合物和/或聚二醇，和/或这些的混合物 。 当淀粉，例如天然淀粉或其衍生物在熔体中与作为增塑剂或溶胀剂的疏水性可生物降解聚合物混合时，为了使混合物均匀化，将水含量降低至小于约5重量％ 对混合物的重量。

    Polyether ester amides
    5.
    发明授权
    Polyether ester amides 失效
    聚醚酯酰胺

    公开(公告)号：US06344535B1

    公开(公告)日：2002-02-05

    申请号：US09554725

    申请日：2000-05-18

    申请人： Ralf Timmermann ,  Wolfgang Schulz-Schlitte ,  Michael Voigt

    发明人： Ralf Timmermann ,  Wolfgang Schulz-Schlitte ,  Michael Voigt

    IPC分类号： C08G6944

    CPC分类号： C08G69/44

    摘要： Polyether ester amides having high water vapor permeability are disclosed. The amides which are prepared simply and reliably, crystallize quickly, are biodegradable and/or compostable, and are suitable in the manufacture of films by extrusion.

    摘要翻译： 公开了具有高水蒸汽渗透性的聚醚酯酰胺。 简单可靠地制备的酰胺快速结晶，是可生物降解和/或可堆肥的，适用于通过挤出制造薄膜。

    Biodegradable polymeric mixtures based on thermoplastic starch
    6.
    发明授权
    Biodegradable polymeric mixtures based on thermoplastic starch 有权
    基于热塑性淀粉的可生物降解的聚合物混合物

    公开(公告)号：US06235815B1

    公开(公告)日：2001-05-22

    申请号：US09215469

    申请日：1998-12-18

    申请人： Jurgen Loercks ,  Winfried Pommeranz ,  Harald Schmidt ,  Ralf Timmermann ,  Ernst Grigat ,  Wolfgang Schulz-Schlitte

    发明人： Jurgen Loercks ,  Winfried Pommeranz ,  Harald Schmidt ,  Ralf Timmermann ,  Ernst Grigat ,  Wolfgang Schulz-Schlitte

    IPC分类号： C08J126

    CPC分类号： F42B12/76 ,  B32B27/10 ,  C08J3/005 ,  C08L3/00 ,  C08L71/02 ,  C08L2201/06 ,  F42B5/30 ,  C08L2666/02 ,  C08L2666/26

    摘要： For converting native starch or starch derivatives into thermoplastic starch, added to the starch is at least one hydrophobic biodegradable polymer. This hydrophobic biodegradable polymer, which serves as a plasticizer or swelling agent, may be a polymer selected from the following list: an aliphatic polyester, a copolyester with aliphatic and aromatic blocks, a polyester amide, a polyester urethane, a polyethylene oxide polymer and/or a polyglycol, and/or mixtures of these. When the starch, such as in particular native starch or derivatives thereof, is mixed in the melt with the hydrophobic biodegradable polymer as a plasticizer or swelling agent, to homogenize the mixture, the water content is reduced to

    摘要翻译： 为了将天然淀粉或淀粉衍生物转化成热塑性淀粉，加入到淀粉中是至少一种疏水性可生物降解的聚合物。 用作增塑剂或溶胀剂的疏水性可生物降解聚合物可以是选自以下列表的聚合物：脂族聚酯，具有脂族和芳族嵌段的共聚酯，聚酯酰胺，聚酯氨酯，聚环氧乙烷聚合物和/ 或聚二醇，和/或它们的混合物。 当将淀粉（例如天然淀粉或其衍生物）与熔融物中的疏水生物可降解聚合物作为增塑剂或溶胀剂混合时，为了使混合物均质化，基于以下成分，水含量降低至<1重量％ 混合物的重量。