Title:
SOFT POLYURETHANE FOAM AND PAD FOR SEAT
Document Type and Number:
WIPO Patent Application WO/2015/190595
Kind Code:
A1
Abstract:
The present invention provides a soft polyurethane foam which is obtained by expansion molding a starting foam liquid that contains a polyol, a polyisocyanate, a crosslinking agent, a foaming agent and a catalyst. This soft polyurethane foam is configured such that: a polyether polyol having a weight average molecular weight (Mw) of 3,000-12,000 and 3-4 functional groups is contained therein; the value of (ethylene oxide groups)/(propylene oxide groups) (in terms of a molar ratio) in all compounds contained therein as the crosslinking agent is 100 or more; and diphenylmethane diisocyanate is contained therein in an isocyanate equivalent of 70 or more.
Inventors:
YOSHITOMI KOSUKE (JP)
SHINOHARA TOSHIMITSU (JP)
SHINOHARA TOSHIMITSU (JP)
Application Number:
PCT/JP2015/067011
Publication Date:
December 17, 2015
Filing Date:
June 12, 2015
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
A47C27/14; C08G18/66; B29C39/02; B29C43/02; B29C43/34; C08G18/76; B29K75/00; B29K105/04; B29L31/58; C08G101/00
Domestic Patent References:
| WO2011136367A1 | 2011-11-03 |
Foreign References:
| US20140031443A1 | 2014-01-30 | |||
| JP2006328202A | 2006-12-07 | |||
| JPH0812794A | 1996-01-16 | |||
| JPS61190518A | 1986-08-25 | |||
| JPH08176258A | 1996-07-09 |
Other References:
See also references of EP 3156431A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
Download PDF: