公开(公告)号：US5824750A

公开(公告)日：1998-10-20

申请号：US760808

申请日：1996-12-05

申请人： Martin Weber ,  Rolf Mulhaupt ,  Jorg Kressler ,  Philipp Muller ,  Rudiger Schafer

发明人： Martin Weber ,  Rolf Mulhaupt ,  Jorg Kressler ,  Philipp Muller ,  Rudiger Schafer

IPC分类号： C08L101/02 ,  C08F8/30 ,  C08F8/48 ,  C08G65/48

CPC分类号： C08F8/30 ,  C08F2800/20

摘要： Polymers (A) containing oxazine groups are prepared by reacting a polymer (T) containing nitrile groups with a monoaminoalcohol in the presence of a catalyst by a process in which the polymer T is reacted in the melt with the monoaminoalcohol in the presence of the catalyst and in the absence of a solvent.

摘要翻译： 含有恶嗪基团的聚合物（A）通过在催化剂存在下使腈基聚合物（T）与单氨基醇反应来制备，其中聚合物T在熔体中与单氨基醇在催化剂存在下反应 并且在没有溶剂的情况下。

公开(公告)号：US6041749A

公开(公告)日：2000-03-28

申请号：US250428

申请日：1999-02-16

申请人： Bernd-Eric Lubbing ,  Rudiger Schafer

发明人： Bernd-Eric Lubbing ,  Rudiger Schafer

IPC分类号： F02F1/20 ,  F16J10/04

CPC分类号： F16J10/04 ,  F02F1/20

摘要： In a cylinder with a cylinder surface receiving a piston the cylinder surface has at least two zones with different oil retention capabilities; sectors having a relatively high oil retention capability are disposed in areas of the cylinder surface which are subjected to relatively high radial pressure forces while the other areas have only a relatively low oil retention capability. The oil retention sectors have a width which changes over their axial length so as to provide only a surface area with increased oil retention capability as needed to accommodate high radial pressure forces of the piston while the rest of the cylinder surface has a low oil retention capability to eliminate unnecessary oil consumption and engine emissions.

摘要翻译： 在具有容纳活塞的气缸表面的气缸中，气缸表面具有至少两个具有不同保油能力的区域; 具有相对较高的保油能力的部分设置在经受较大径向压力的气缸表面的区域中，而其它区域仅具有相对较低的保油能力。 保油部分具有在其轴向长度上变化的宽度，以便仅提供具有增加的保油能力的表面积，以适应活塞的高径向压力，而其余的气缸表面具有低的保油能力 消除不必要的油耗和发动机排放。