公开(公告)号：US20100087600A1

公开(公告)日：2010-04-08

申请号：US12489851

申请日：2009-06-23

Applicant: Julia Maria Müller ,  Oskar Nuyken ,  Werner Obrecht

Inventor： Julia Maria Müller ,  Oskar Nuyken ,  Werner Obrecht

IPC: C08F271/00

CPC classification number: B01J31/2265 ,  B01J2231/54 ,  B01J2531/821

Abstract: A novel process for reducing the molecular weight of nitrile rubber in the presence of specific catalyst systems containing the metathesis catalyst and also a specific addition of fluorine-containing boron compounds is provided.

Abstract translation: 在含有复分解催化剂的特定催化剂体系以及含氟硼化合物的特定添加剂的存在下，提供了一种降低丁腈橡胶分子量的新方法。

公开(公告)号：US07470750B2

公开(公告)日：2008-12-30

申请号：US11509983

申请日：2006-08-25

Applicant: Werner Obrecht ,  Julia Maria Müller ,  Oskar Nuyken ,  Heinz Berke ,  Ludek Meca ,  Lubica Triscikova

Inventor： Werner Obrecht ,  Julia Maria Müller ,  Oskar Nuyken ,  Heinz Berke ,  Ludek Meca ,  Lubica Triscikova

IPC: C08F20/44 ,  C08F8/04 ,  C08F8/50 ,  C08C19/02 ,  C08C19/08

CPC classification number: C08C19/02 ,  C08C19/08

Abstract: A novel process for the degradation of nitrile rubber by metathesis using ruthenium- or osmium-based catalysts which have both a substituted or unsubstituted imidazolidine ligand and a carbene ligand bearing a phosphonium radical is provided.

Abstract translation: 提供了一种通过使用具有取代或未取代的咪唑烷配体和带有鏻基的卡宾配体的钌或锇基催化剂的复分解使丁腈橡胶降解的新方法。