公开(公告)号：US11242574B2

公开(公告)日：2022-02-08

申请号：US16308854

申请日：2017-06-12

Applicant: BASF SE

Inventor： Qing Shi ,  Laszlo Szarvas ,  Biyu Peng ,  Chunxiao Zhang

IPC: C14C1/08 ,  C14C3/06

Abstract: The present invention relates to a process for producing leather in which methanesulfonic acid (MSA) is used in the pickling step at a high pH value, and the use of MSA is to improve the quality of the final leather product as well as to improve the environmental impact of the waste liquor.

公开(公告)号：US20220154392A1

公开(公告)日：2022-05-19

申请号：US17590077

申请日：2022-02-01

Applicant: BASF SE

Inventor： Laszlo Szarvas ,  Si Jun Zhu ,  Yi Lin ,  R.K. Prasad Nadella

IPC: D06M15/61 ,  D06M15/643

Abstract: The present invention relates to an alkoxylated polyethylenimine, for use in textile treatment in textile industry, especially in textile finishing processes.

公开(公告)号：US20220119554A1

公开(公告)日：2022-04-21

申请号：US17432573

申请日：2020-02-19

Applicant: BASF SE

Inventor： Qing Feng Tong ,  Laszlo Szarvas ,  Frederic Bauer

IPC: C08B9/00 ,  D01F2/10

Abstract: Described herein is a method for producing a viscose solution including a step of adding alkyl polyglycoside (APG) prior to and/or during xanthation of alkali cellulose. When APG is added prior to or during xanthation of alkali cellulose, the reactivity between alkali cellulose and CS2 could be increased and the xanthation could be accelerated, as a result of which formation of agglomerates and/or lumps in the obtained viscose solution and then the obtained viscose fiber spun therefrom is significantly reduced, relative to the situation when conventional surfactants such as phenyl ethoxylate are added likewise. Also described herein is a viscose solution obtained by the foresaid method, and a method for producing viscose fiber with the foresaid viscose solution or including the foresaid method.

公开(公告)号：US10968295B2

公开(公告)日：2021-04-06

申请号：US16344381

申请日：2017-10-24

Applicant: BASF SE

Inventor： Ferdinand Leifeld ,  Achim Fessenbecker ,  Steffen Henkes ,  Massimiliano Bordignon ,  Vandana Kurkal-Siebert ,  Laszlo Szarvas ,  Qing Feng Tong

IPC: C08F120/06 ,  C09C3/10 ,  C08F2/20 ,  C08F2/38 ,  C08F8/44 ,  C08K3/22 ,  C08K3/26 ,  C08K3/32 ,  C08F2/10 ,  B01F17/00 ,  C09C3/04

Abstract: An acrylic acid polymer having a weight average molecular weight Mw in the range from 3500 to 2000 g/mol and a polydispersity index Mw/Mn≤2.5, wherein 30% to 60% of the acid groups of the acrylic acid polymers have been neutralized with calcium ions, 30% to 70% of the acrylic acid polymers have been neutralized with sodium ions and 0% to 10% of the acid groups of the acrylic acid polymers have not been neutralized.

公开(公告)号：US20190352843A1

公开(公告)日：2019-11-21

申请号：US16482315

申请日：2018-02-09

Applicant: BASF SE

Inventor： Laszlo Szarvas ,  Si Jun Zhu ,  Yi Lin ,  R.K. Prasad Nadella

IPC: D06M15/61 ,  D06M15/643

Abstract: The present invention relates to an alkoxylated polyethylenimine, for use in textile treatment in textile industry, especially in textile finishing processes.

公开(公告)号：US20180016742A1

公开(公告)日：2018-01-18

申请号：US15547821

申请日：2016-02-05

Applicant: BASF SE

Inventor： Qin Qin Hu ,  Laszlo Szarvas ,  Si Jun Zhu

IPC: D06M15/61

Abstract: The invention relates to an alkoxylated polyethyleneimine hydrophilically-modified fiber, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to a method of improving hydrophilicity of fiber comprising impregnating the fiber with an aqueous solution containing an alkoxylated polyethyleneimine, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to use of the alkoxylated polyethyleneimine in improving hydrophilicity of fiber.