公开(公告)号：EP2513195B1

公开(公告)日：2014-06-25

申请号：EP10838031.2

申请日：2010-01-12

Applicant: Invista Technologies S.à.r.l.

Inventor： OSBORNE, Robert, B. ,  SUN, Qun ,  SUN, Yanhui ,  SISLER, Gregg, M. ,  EISSMANN, Roy, N. ,  ORLANDI, Robert, D.

IPC: C08G65/20 ,  C08G65/28 ,  C08G65/30

CPC classification number: C08G65/20 ,  C08G65/2678 ,  C08G65/2684 ,  C08G65/2696 ,  C08G65/30

公开(公告)号：EP2726535A1

公开(公告)日：2014-05-07

申请号：EP12733338.3

申请日：2012-06-22

Applicant: Invista Technologies S.à.r.l.

Inventor： GAUSE, Jason, C. ,  SISLER, Gregg, M. ,  SUN, Qun

IPC: C08G65/00

CPC classification number: C08G65/2696 ,  Y02P20/584

Abstract: A method for preventing pressure build-up across a catalyst separation in a polyether polyol reactor comprising the steps of feeding reactants that comprise a monomer or co-monomers to be polymerized to form the polyether polyol into a continuous feed reactor, flowing the product stream through a catalyst separation system within the reactor, wherein the catalyst separation system is comprised of a plurality of filters, wherein each filter comprises an outer surface and an inner surface defined by a plurality of spaced-apart elements, and wherein the distance between the spaced-apart elements is smaller than the minor dimension of the suspended catalyst and recovering the filtered polyether polyol product and catalyst fines from the reactor outlet.

公开(公告)号：EP2513195A1

公开(公告)日：2012-10-24

申请号：EP10838031.2

申请日：2010-01-12

Applicant: Invista Technologies S.à.r.l.

Inventor： OSBORNE, Robert, B. ,  SUN, Qun ,  SUN, Yanhui ,  SISLER, Gregg, M. ,  EISSMANN, Roy, N. ,  ORLANDI, Robert, D.

IPC: C08G65/20 ,  C08G65/28 ,  C08G65/30

CPC classification number: C08G65/20 ,  C08G65/2678 ,  C08G65/2684 ,  C08G65/2696 ,  C08G65/30

Abstract: The present invention relates to an improved, fully-integrated continuous process of enhanced process operability for manufacturing copolyether glycols having enhanced physical properties by polymerization of a reaction mixture comprising tetrahydrofuran and at least one alkylene oxide in the presence of an acid catalyst and at least one compound containing reactive hydrogen atoms. The copolyether glycols manufactured by the present process have enhanced physical properties of increased alkylene oxide incorporation, average molecular weight and polydispersity, as well as reduced crystallinity, color, oligomeric cyclic ether content, and linear oligomer having an average molecular weight of up to about 400 dalton content.

Abstract translation: 本发明涉及一种改进的完全整合的连续工艺，其通过在酸催化剂存在下聚合包含四氢呋喃和至少一种烯化氧的反应混合物而具有增强的物理性质的共聚醚二醇， 含有活性氢原子的化合物。 通过本发明方法制造的共聚醚二醇具有提高的烯化氧结合物的物理性质，平均分子量和多分散性，以及降低的结晶度，颜色，低聚环醚含量和平均分子量高达约400的直链低聚物 道尔顿含量。