公开(公告)号：US20200299426A1

公开(公告)日：2020-09-24

申请号：US16074100

申请日：2017-02-02

Applicant: BASF SE

Inventor： Johannes Barth ,  Gledison Fonseca ,  Dieter Faul ,  Martin Ernst ,  Juergen Detering ,  Ferdinand Leifeld ,  Gazi Tuerkoglu

IPC: C08F120/06 ,  C11D3/37 ,  C11D3/00

Abstract: A process for producing aqueous solutions of acrylic acid polymers by polymerization of acrylic acid in feed operation with a free-radical starter in the presence of hypophosphite in water as solvent, which comprises (i) initially charging water and optionally acrylic acid in acidic, unneutralized form, optionally one or more ethylenicaliy unsaturated comonomers, optionally aqueous hypophosphite solution and optionally initiator, (ii) adding acrylic acid in acidic, unneutralized form, optionally one or more ethylenicaliy unsaturated comonomers, aqueous free-radical starter solution and aqueous hypophosphite solution, (iii) adding a base to the aqueous solution after termination of the acrylic acid feed, wherein the comonomer content does not exceed 30 wt % based on the total monomer content, wherein the acrylic acid, the aqueous free-radical starter solution and the aqueous hypophosphite solution are added such that the molar ratio x of acrylic acid to phosphorus-bound hydrogen [AA]/[P—H] over a time period in which at least 75% of the acrylic acid is converted has a value x which is constant to within ±0.5 and is in the range from 0.8 to 2.

公开(公告)号：US11214752B2

公开(公告)日：2022-01-04

申请号：US16622474

申请日：2018-07-19

Applicant: BASF SE

Inventor： Szilard Csihony ,  Anja Thomas ,  Kevin J. Desantis ,  Philippe Rabbat ,  Andrea Misske ,  Johannes Barth ,  Meik Ranft ,  Peter Mueller ,  Wolfgang Grabarse ,  Christoph Fleckenstein

IPC: C10M145/00 ,  C10M145/14 ,  C10M143/06 ,  C10M169/04 ,  C10N20/00 ,  C10N40/04 ,  C10N30/00 ,  C10N20/02 ,  C10N30/02 ,  C10N40/08 ,  C10N40/20 ,  C10N40/25 ,  C10N50/10

Abstract: The present invention is directed to the use of poly(polyisobutylenemethacrylate) as viscosity index improving component in lubricating oil compositions. The invention is further related to lubricating oil compositions comprising poly(polyisobutylenemethacrylate) with enhanced shear stability.

公开(公告)号：US20240047014A1

公开(公告)日：2024-02-08

申请号：US18268988

申请日：2021-12-23

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

Inventor： Zhe Xiong Yang ,  Jian Zhang ,  Zhi Ting Jiang ,  Johannes Barth

IPC: G16C20/10 ,  G16C20/30

CPC classification number: G16C20/10 ,  G16C20/30 ,  G16C60/00

Abstract: A computer implemented method for generating synthesis specifications comprising the steps of providing to a computer processor via a communication interface a proposed target application property of the new synthesis specification; providing to the computer processor via the communication interface a data driven model, parametrized based on historical synthesis specifications comprising historical list of components, historical amounts for each of the components and historical target criteria, determining via the computer processor a target synthesis specification based on the data driven model and the target application property providing to an output unit via the communication interface the target synthesis specification, comprising a list of target components and the amount of each of the components.

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.