公开(公告)号：US20230021128A1

公开(公告)日：2023-01-19

申请号：US17782898

申请日：2020-12-09

Applicant: BASF SE

Inventor： YingHao Liu ,  Stefan Bokern ,  Xuyuan Peng-Poehler ,  Li Ping Wang ,  Yuan Yan Gu ,  Dong Liang ,  Yuan Fang

IPC: C09J175/08 ,  B32B7/12 ,  B32B1/08 ,  B32B15/01 ,  F16B11/00 ,  F16L13/10

Abstract: Described herein is a method for joining a first metal pipe with a second metal pipe, the pipes being joined together in an overlapping area by use of a two-component polyurethane adhesive that encapsulates the overlapping area, where the method includes the steps of:
(1) applying the two-component polyurethane adhesive onto an inner surface of a fixture; (2) inserting one end of the first metal pipe into one end of the second metal pipe so as to form a pipe assembly having the overlapping area between the two ends, and putting the overlapping area of the pipe assembly into the fixture; (3) closing the fixture such that the overlapping area of the pipe assembly is fixed in the fixture, and such that the adhesive therein encapsulates the overlapping area of the pipe assembly; (4) curing the two-component polyurethane adhesive; and (5) optionally, removing the fixture from the pipe assembly.

公开(公告)号：US20220098405A1

公开(公告)日：2022-03-31

申请号：US17426777

申请日：2020-01-14

Applicant: BASF SE

Inventor： Xuyuan Peng-Poehler ,  Yun Fei Guo ,  Li Chen

IPC: C08L75/14 ,  C08G18/12 ,  C08G18/42 ,  C08G18/48 ,  C08G18/40 ,  C08G18/72 ,  C08G18/76 ,  C08G18/81 ,  C08K5/21 ,  C09J7/35 ,  C09J7/32 ,  B29C64/129

Abstract: Described herein is a polyurethane having an isocyanate group and having C—C double bonds on a side chain, a process for preparing such a polyurethane, and an UV-moisture dual cure polyurethane reactive hotmelt including the polyurethane.

公开(公告)号：US11912867B2

公开(公告)日：2024-02-27

申请号：US17426777

申请日：2020-01-14

Applicant: BASF SE

Inventor： Xuyuan Peng-Poehler ,  Yun Fei Guo ,  Li Chen

IPC: C08L75/14 ,  C09J7/35 ,  C08G18/81 ,  B29C64/129 ,  C09J7/32 ,  C08G18/12 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/72 ,  C08G18/76 ,  C08K5/21 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00

CPC classification number: C08L75/14 ,  B29C64/129 ,  C08G18/12 ,  C08G18/4018 ,  C08G18/4202 ,  C08G18/4804 ,  C08G18/728 ,  C08G18/7671 ,  C08G18/8125 ,  C08K5/21 ,  C09J7/32 ,  C09J7/35 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08G2170/20 ,  C09J2301/304 ,  C09J2301/306 ,  C09J2301/416 ,  C09J2475/00

Abstract: Described herein is a polyurethane having an isocyanate group and having C—C double bonds on a side chain, a process for preparing such a polyurethane, and an UV-moisture dual cure polyurethane reactive hotmelt including the polyurethane.

公开(公告)号：US20240055080A1

公开(公告)日：2024-02-15

申请号：US18267603

申请日：2021-12-17

Applicant: BASF SE ,  BASF ADVANCED CHEMICALS CO., LTD.

Inventor： Zhe Xiong Yang ,  Huan Huan Gao ,  Hai Long Lv ,  Ke Wang ,  Ye Fan Wu ,  Ke Shi ,  Johannes Barth ,  Andreas Kuehner ,  Xuyuan Peng-Poehler ,  Yi Zhou Zheng

IPC: G16C20/30 ,  G16C20/70 ,  G16C20/10

CPC classification number: G16C20/30 ,  G16C20/70 ,  G16C20/10

Abstract: A computer implemented method of predicting a phase stability parameter for a polymer material comprising the steps of providing to a computer processor via a communication interface a digital representation of the polymer material; providing to the processor via the communication interface a data driven model parametrized on a digital representation of historical polymer material, and historical phase stability parameters; determining with the computer processor a phase stability parameter for the polymer material based on the provided data driven model, and the digital representation of the polymer material; providing via the communication interface the determined phase stability parameter.

公开(公告)号：US20220403219A1

公开(公告)日：2022-12-22

申请号：US17776454

申请日：2020-11-13

Applicant: BASF SE

Inventor： Sirus Zarbakhsh ,  Stefan Bokern ,  Martin Linnebrink ,  Xuyuan Peng-Poehler

IPC: C09J175/08 ,  C09J5/06 ,  C08G18/76 ,  C08G18/12 ,  C08G18/42 ,  C08G18/48 ,  C08G18/62 ,  C08G18/40 ,  C08G18/30

Abstract: Described herein is a moisture-curing polyurethane hot-melt adhesive including at least 80% by weight, based on a total weight of the moisture-curing polyurethane hot-melt adhesive, of isocyanate-terminated prepolymer obtainable by mixing diisocyanate (a) with compounds having at least two isocyanate-reactive groups (b) and reacting the mixture to form the isocyanate-terminated prepolymer, where the compounds having at least two isocyanate-reactive groups (b) include at least one polylactide (b1) obtainable by reacting lactide with a linear difunctional starter molecule having 2 to 20 carbon atoms and the isocyanate content of the isocyanate-terminated prepolymer is 1 to 5% by weight. Also described herein is a process for producing such a moisture-curing polyurethane hot-melt adhesive and a method of using the moisture-curing polyurethane hot-melt adhesive in bonding of substrates.