Global Patent Index - EP 2643379 A1

EP 2643379 A1 20131002 - METHOD FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS

Title (en)

METHOD FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON POLYURETHANWEICHSCHAUMSTOFFEN

Title (fr)

PROCÉDÉ DE FABRICATION DE MOUSSES SOUPLES DE POLYURÉTHANE

Publication

EP 2643379 A1 20131002 (DE)

Application

EP 11784513 A 20111118

Priority

  • EP 10192093 A 20101122
  • EP 2011070479 W 20111118
  • EP 11784513 A 20111118

Abstract (en)

[origin: WO2012069385A1] The invention relates to a method for producing flexible polyurethane foams, wherein an isocyanate component (component B) containing fatty acid derivatives which contain hydroxyl groups is used as the starting substance. In accordance with DIN EN ISO 3386-1-98, the flexible polyurethane foams according to the invention have a bulk density ranging from = 10 kg/m3 to = 150 kg/m3, preferably from = 20 kg/m3 to = 70 kg/m3, and in general, the compressive strength thereof ranges from = 0.5 kPa to = 20 kPa (at 40% deformation and fourth cycle) in accordance with DIN EN ISO 3386-1-98. The invention further relates to an NCO-terminated prepolymer containing urethane groups, which can be obtained by reacting one or more polyisocyanates (B1) with one or more fatty acid derivatives (B2) containing hydroxyl groups.

IPC 8 full level

C08G 18/36 (2006.01); C08G 18/80 (2006.01)

CPC (source: EP US)

C08G 18/36 (2013.01 - EP US); C08G 18/8051 (2013.01 - EP US); C08J 9/125 (2013.01 - US); C08G 2110/0008 (2021.01 - EP US)

Citation (search report)

See references of WO 2012069385A1

Citation (third parties)

Third party :

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)

WO 2012069385 A1 20120531; CN 103261257 A 20130821; EP 2643379 A1 20131002; US 2013261203 A1 20131003; US 9701804 B2 20170711

DOCDB simple family (application)

EP 2011070479 W 20111118; CN 201180056028 A 20111118; EP 11784513 A 20111118; US 201113885694 A 20111118