Global Patent Index - EP 4223925 A1

EP 4223925 A1 20230809 - ARTIFICIAL LEATHER, PRODUCTION METHOD THEREFOR, AND ARTIFICIAL LEATHER BACKING MATERIAL

Title (en)

ARTIFICIAL LEATHER, PRODUCTION METHOD THEREFOR, AND ARTIFICIAL LEATHER BACKING MATERIAL

Title (de)

KUNSTLEDER, HERSTELLUNGSVERFAHREN DAFÜR UND KUNSTLEDERTRÄGERMATERIAL

Title (fr)

SIMILICUIR, SON PROCÉDÉ DE FABRICATION ET MATÉRIAU DE SUPPORT POUR SIMILICUIR

Publication

EP 4223925 A1 20230809 (EN)

Application

EP 21875351 A 20210922

Priority

  • JP 2020163367 A 20200929
  • JP 2021034748 W 20210922

Abstract (en)

An object of the present invention is to provide an artificial leather having excellent flame retardancy while having moderate air permeability and a flexible texture, and having feels like natural suede and an elegant appearance, the artificial leather including a fiber entanglement including an ultrafine fiber having an average single fiber diameter of 0.1 um or more and 10 um or less, and an elastomer, in which one surface is a napped surface having a raised nap, the other surface is a flame retardant surface having a flame retardant, and the following requirements 1 and 2 are satisfied. Requirement 1: At least the flame retardant surface has a plurality of opening portions. Requirement 2: The flame retardant has a tackiness of 0.1 N/cm<sup>2</sup> or more and 2.0 N/cm<sup>2</sup> or less.

IPC 8 full level

D06N 3/00 (2006.01)

CPC (source: EP KR US)

D06N 3/0004 (2013.01 - EP KR US); D06N 3/0006 (2013.01 - US); D06N 3/0009 (2013.01 - KR US); D06N 3/0036 (2013.01 - EP); D06N 3/0054 (2013.01 - EP); D06N 3/0059 (2013.01 - EP); D06N 3/0075 (2013.01 - EP); D06N 3/04 (2013.01 - EP); D06N 3/14 (2013.01 - EP); D06N 3/18 (2013.01 - EP); D06N 3/186 (2013.01 - EP KR US); D06N 2201/0209 (2013.01 - KR US); D06N 2203/045 (2013.01 - EP); D06N 2209/067 (2013.01 - EP KR US); D06N 2211/28 (2013.01 - EP)

Citation (search report)

See references of WO 2022071049A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4223925 A1 20230809; CN 116018439 A 20230425; JP WO2022071049 A1 20220407; KR 20230078990 A 20230605; TW 202223198 A 20220616; US 2023323594 A1 20231012; WO 2022071049 A1 20220407

DOCDB simple family (application)

EP 21875351 A 20210922; CN 202180054940 A 20210922; JP 2021034748 W 20210922; JP 2021559353 A 20210922; KR 20237001155 A 20210922; TW 110135481 A 20210924; US 202118024602 A 20210922