公开(公告)号：US20220033645A1

公开(公告)日：2022-02-03

申请号：US17311177

申请日：2019-12-05

Applicant: BASF SE

Inventor： Jerome LOHMANN ,  Maximilian LEHENMEIER ,  Norbert EFFEN ,  Martin BUSSMANN ,  Michael Bernhard SCHICK ,  Timo Benjamin WITT

IPC: C08L67/02

Abstract: The present invention relates to a process for producing a (co)polyester, wherein the (co)polyester at least partially consists of 1,4-butylene dicarboxylate units, in a degassing plant, wherein the crude (co)polyester is degassed in the presence of 0.1% to 5% by weight, based on the total weight of the input materials, of an entraining agent at a pressure between 5 to 300 mbar.

公开(公告)号：US20200095372A1

公开(公告)日：2020-03-26

申请号：US16471807

申请日：2017-11-24

Applicant: BASF SE

Inventor： Motonori YAMAMOTO ,  Michael Bernhard SCHICK

IPC: C08G63/16

Abstract: The invention relates to polyesters consisting of: A) an acid component composed of: a1) 25 to 100 mol % based on the components a1) and a2) of 2,5-furandicarboxylic acid or its esters or mixtures thereof a2) 0 to 75 mol % based on the components a1) and a2) of an aliphatic C4-C36-dicarboxylic acid or its esters or mixtures thereof and a3) 1 to 10 mol % based on the components a1) to a3) of a sulfonate-containing compound, wherein the mol percentages of the components a1) to a3) sum to 100, and B) a diol component composed of: b1) 98 to 100 mol % based on the components a1) to a3) of component A of a C2- to C12-alkanediol or mixtures thereof and b2) 0 to 2 mol % based on the components a1) to a3) of a branching agent comprising at least 3 functional groups; and optionally further components. The invention further relates to the production of the polyesters and the use thereof and also to aqueous dispersions and polyester mixtures comprising these polyesters.