公开(公告)号：US20210292461A1

公开(公告)日：2021-09-23

申请号：US17260151

申请日：2019-07-10

Applicant: BASF SE ,  Kolon Plastics Inc.

Inventor： Thomas HEITZ ,  Juergen DEMETER ,  Anna Karina MOELLER ,  Cho IN-GI

IPC: C08G2/28 ,  C08G2/10 ,  C08L59/04 ,  C08G2/06 ,  B01J31/14

Abstract: The present invention relates to a method for the deactivation of an acid catalyst during the production process of a polyoxymethylene copolymer (cPOM) by adding triisopropanolamine (tris(2-hydroxypropyl)amine) to a mixture which comprises the polyoxymethylene copolymer (cPOM) and the acid catalyst.

公开(公告)号：US20160115270A1

公开(公告)日：2016-04-28

申请号：US14894158

申请日：2014-05-26

Applicant: BASF SE

Inventor： Laurence POTTIE ,  Juergen DEMETER ,  Marie-Claire HERMANT

IPC: C08G2/08 ,  C08G59/02 ,  C08G65/00

CPC classification number: C08G2/08 ,  C08G2/06 ,  C08G2/10 ,  C08G2/18 ,  C08G2/22 ,  C08G4/00 ,  C08G59/02 ,  C08G65/00 ,  C08L59/04

Abstract: The patent application relates to a process for preparing polyoxymethylene by polymerization of a reaction mixture (RG) which comprises at least one formaldehyde source and at least one initiator mixture (IG), wherein the initiator mixture (IG) comprises at least one polymerization initiator and at least one solvent of the general formula (I) R1—O—[—R3—O—]m—R2  (I), where m is 1, 2, 3 or 4; R1 and R2 are each, independently of one another, C3-C6-alkyl; R3 is C1-C5-alkylene.

Abstract translation: 该专利申请涉及通过聚合包含至少一种甲醛源和至少一种引发剂混合物（IG）的反应混合物（RG）来制备聚甲醛的方法，其中引发剂混合物（IG）包含至少一种聚合引发剂和 至少一种通式（I）R 1 -O - [ - R 3 -O-] m -R 2（I）的溶剂，其中m为1,2,3或4; R 1和R 2各自独立地为C 3 -C 6 - 烷基; R3是C1-C5-亚烷基。