Global Patent Index - EP 3904592 A4

EP 3904592 A4 20221012 - NAPPED ARTIFICIAL LEATHER AND COMPOSITE MATERIAL

Title (en)

NAPPED ARTIFICIAL LEATHER AND COMPOSITE MATERIAL

Title (de)

AUFGERAUTES KUNSTLEDER UND VERBUNDMATERIAL

Title (fr)

CUIR ARTIFICIEL DUVETEUX ET MATIÈRE COMPOSITE

Publication

EP 3904592 A4 20221012 (EN)

Application

EP 19906447 A 20191128

Priority

  • JP 2018246738 A 20181228
  • JP 2018246739 A 20181228
  • JP 2019046648 W 20191128

Abstract (en)

[origin: EP3904592A1] Disclosed is a napped artificial leather including: a fiber-entangled body including ultrafine fibers having a fineness of 0.5 dtex or less; and an elastic polymer impregnated into the fiber-entangled body, the napped artificial leather having a thickness of 0.25 to 1.5 mm, and including a main surface that is a napped surface formed by napping the ultrafine fibers. The napped artificial leather further includes phosphorous-based flame retard ant particles attached to the elastic polymer such as a polyurethane, the phosphorous-based flame retardant particles being locally present in a range of a thickness of 200 µm or less from a back surface opposite to the main surface. The phosphorous-based flame retardant particles have an average particle size of 0.1 to 30 pm, a phosphorus atom content of 14 mass% or more, and a solubility in water at 30°C of 0.2 mass% or less, and a melting point, or, in the absence of a melting point, a decomposition temperature, of 150°C or more, and a content ratio of the phosphorous-based flame retardant particles is 1 to 6 mass% as a content ratio in terms of phosphorus atoms.

IPC 8 full level

D06N 3/14 (2006.01); D06M 11/00 (2006.01); D06M 13/285 (2006.01); D06M 15/564 (2006.01); D06N 3/00 (2006.01)

CPC (source: EP KR US)

D06M 11/00 (2013.01 - KR); D06M 13/285 (2013.01 - KR); D06M 15/564 (2013.01 - KR); D06N 3/0004 (2013.01 - EP US); D06N 3/0011 (2013.01 - US); D06N 3/0059 (2013.01 - EP KR US); D06N 3/0063 (2013.01 - US); D06N 3/0075 (2013.01 - EP KR US); D06N 3/14 (2013.01 - KR); D06N 3/146 (2013.01 - EP US); D06N 3/147 (2013.01 - US); D06M 2200/30 (2013.01 - KR); D06N 2209/067 (2013.01 - EP KR US); D06N 2211/28 (2013.01 - US)

Citation (search report)

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

DOCDB simple family (publication)

EP 3904592 A1 20211103; EP 3904592 A4 20221012; CN 113260760 A 20210813; CN 113260760 B 20240301; KR 20210094070 A 20210728; TW 202039959 A 20201101; TW I828830 B 20240111; US 2022074133 A1 20220310; WO 2020137346 A1 20200702

DOCDB simple family (application)

EP 19906447 A 20191128; CN 201980085895 A 20191128; JP 2019046648 W 20191128; KR 20217020336 A 20191128; TW 108147520 A 20191225; US 201917415877 A 20191128