公开(公告)号：US20250084224A1

公开(公告)日：2025-03-13

申请号：US18688397

申请日：2022-09-12

Applicant: BASF SE

Inventor： Zhong Kai ZHANG ,  Dong Liang WANG

IPC: C08J5/18 ,  C08J3/24 ,  D06N3/00 ,  D06N3/14

Abstract: Described herein is a process for preparing polyurethane sheet/laminate with reduced bubbles, including the steps of applying a polyurethane system obtained by mixing an isocyanate component (A) and a polyol composition component (B) to form a base coat layer, where the components (A) and (B) are kept separately in tanks under vacuum before mixing, and the application of the polyurethane system is implemented via knife coating under relative humidity of 65% or below. Further described herein are a polyurethane sheet/laminate prepared by the described process and a synthetic leather made from the polyurethane sheet/laminate.

公开(公告)号：US20230228633A1

公开(公告)日：2023-07-20

申请号：US18002072

申请日：2021-06-10

Applicant: BASF SE

Inventor： JunMin LEE ,  Wei Hsiang LIN ,  Marc SCHROEDER ,  Marc MARTIN ,  Zhong Kai ZHANG ,  Chang Xi LI ,  Min Jung KIM ,  Ikbin CHO

IPC: G01L1/18 ,  G01L5/22 ,  H10N30/067 ,  H10N30/03 ,  H10N30/30 ,  H10N30/092

CPC classification number: G01L1/18 ,  G01L5/221 ,  H10N30/067 ,  H10N30/03 ,  H10N30/302 ,  H10N30/092

Abstract: Disclosed herein is a piezoresistive pressure sensor, including: a continuous piezoresistive foam layer; an electrode array layer, on one side of which the continuous piezoresistive foam layer is disposed; and an artificial leather layer as cover layer, which is disposed on the continuous piezoresistive foam layer; where the continuous piezoresistive foam layer is made by doping the foam with conductive materials. The piezoresistive pressure sensor can provide overall 2D-pressure mapping in a large area and has good flexibility and reliability to be combined with soft surfaces.

公开(公告)号：US20240328079A1

公开(公告)日：2024-10-03

申请号：US18251047

申请日：2021-10-13

Applicant: BASF SE

Inventor： Zhong Kai ZHANG ,  Feng QIN ,  Hang Yu XU ,  Chun Yi CHEN

IPC: D06N3/18 ,  D06N3/00 ,  D06N3/14

CPC classification number: D06N3/183 ,  D06N3/0077 ,  D06N3/14

Abstract: Described herein is an embossable non-solvent polyurethane sheet, which is formed from a non-solvent polyurethane system including a polyol component (a) and an isocyanate component (b), where the polyol component (a) includes (a-1) at least one polyol having a functionality in a range of from 1.5 to 2.5; and (a-2) optionally at least one polyol having a functionality in a range of 2.7 to 3.5, wherein an amount of the at least one polyol (a-2) is ≤6 wt %, based on a total weight of the polyol component (a), and wherein the polyol component (a) has an average functionality of from 1.5 to 2.1. Also described herein are a laminate including the sheet and a synthetic leather including the sheet. Also described herein are a method of using the sheet, a method of using the laminate, and a method of using the synthetic leather.

公开(公告)号：US20240218591A1

公开(公告)日：2024-07-04

申请号：US18550076

申请日：2022-03-28

Applicant: BASF SE

Inventor： Chang Xi LI ,  Guang Hui HAN ,  Zhong Kai ZHANG

IPC: D06N3/14 ,  D06N3/00

CPC classification number: D06N3/145 ,  D06N3/0059 ,  D06N3/0097 ,  D06N3/147

Abstract: Disclosed herein is a non-solvent polyurethane system, which includes catalysts of at least a non-tin metal compound with an amine-based catalyst. Further disclosed herein is an artificial leather including a top coat, a first polyurethane layer made from the non-solvent polyurethane system, optionally a further polyurethane layer and optionally a substrate layer. Additionally disclosed herein is a process for producing an artificial leather thereof.