公开(公告)号：US06355846B1

公开(公告)日：2002-03-12

申请号：US09690650

申请日：2000-10-17

Applicant: Suri Narayan Dorai ,  Richard Edward Ernst

Inventor： Suri Narayan Dorai ,  Richard Edward Ernst

IPC: C07C4311

CPC classification number: C08G65/10 ,  C07C41/42 ,  C08G65/20 ,  C07C43/11

Abstract: A process for producing a poly(tetramethylene ether) glycol (PTMEG) or copolymer having a narrowed molecular weight ratio of 1.9 to 2.07 and a dispersity of 1.2 to 1.65 from a starting PTMEG or copolymer with a broader molecular weight distribution having a dispersity of 1.9 to 2.3 and a molecular weight ratio of 2.3 to 2.6 is provided by feeding the PTMEG or copolymer and an effective amount of an inert solvent to a stripping apparatus and stripping at a temperature of 150 to 220 degrees C. and a pressure of 0.5 to 5 mm of mercury.

Abstract translation: 从具有分散度为1.9的较宽分子量分布的起始PTMEG或共聚物制备分子量分数为1.9至2.07的分子量分布为1.9至2.07的聚四亚甲基醚二醇（PTMEG）或共聚物的分散度为1.2至1.65的方法 通过将PTMEG或共聚物和有效量的惰性溶剂进料至汽提装置并在150-220℃的温度和0.5至5的压力下汽提来提供2.3至2.6的分子量比 毫米汞柱。

公开(公告)号：US06355845B1

公开(公告)日：2002-03-12

申请号：US09611498

申请日：2000-07-07

Applicant: Katherine S. Clement ,  Louis L. Walker ,  Richard M. Wehmeyer ,  Wanda W. Rauscher ,  Robert H. Whitmarsh

Inventor： Katherine S. Clement ,  Louis L. Walker ,  Richard M. Wehmeyer ,  Wanda W. Rauscher ,  Robert H. Whitmarsh

IPC: C07C4311

CPC classification number: C08G65/2663 ,  B01J27/26 ,  C08G65/2603 ,  C08G65/2609 ,  C08G65/2618 ,  C08G65/2693 ,  C08G65/2696

Abstract: Certain alcohol initiators containing unconjugated carbon-carbon double bonds can be alkoxylated with excellent efficiency and low production of by-products using a metal cyanide catalyst.

Abstract translation: 含有非共轭碳 - 碳双键的某些醇引发剂可通过金属氰化物催化剂以优异的效率和副产物的低产率进行烷氧基化。

公开(公告)号：US06303832B1

公开(公告)日：2001-10-16

申请号：US09702725

申请日：2000-11-01

Applicant: Irene Trötsch-Schaller ,  Günter Oetter ,  Knut Oppenländer ,  Michael Stösser

Inventor： Irene Trötsch-Schaller ,  Günter Oetter ,  Knut Oppenländer ,  Michael Stösser

IPC: C07C4311

CPC classification number: C10L1/1985 ,  C08G65/2609 ,  C08G65/2654 ,  C10L10/06 ,  C11D1/72 ,  C11D1/722

Abstract: Alkanols are oxyalkylated by a process in which the reaction is carried out using a heterogeneous basic catalyst which is selected from basic aluminates, and the compounds prepared thereby are used as carrier oils in fuel additives or as nonionic surfactants in detergents or cleaning agents.

Abstract translation: 烷醇通过使用选自碱性铝酸盐的非均相碱性催化剂进行反应的方法进行烷氧基化，并且由此制备的化合物用作燃料添加剂中的载体油或用作洗涤剂或清洁剂中的非离子表面活性剂。