Title:
PROCESS FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS AND APPARATUS FOR PRODUCING FLEXIBLE POLYURETHANE FOAMS
Document Type and Number:
WIPO Patent Application WO/2002/100916
Kind Code:
A1
Abstract:
A process for producing flexible polyurethane foams with the same production apparatus from: tolylene diisocyanate&semi two or three polyols at least two of which are selected from the group consisting of three polyoxyalkylene polyether polyols having a total degree of unsaturation less than 0.06 meq&sol g and three polymer polyols obtained from polyoxyalkylene polyether polyols having a total degree of unsaturation less than 0.06 meq&sol g&semi and a foaming agent. It comprises mixing the polyols, polyisocyanate, and foaming agent while changing the proportions of these to thereby produce flexible polyurethane foams each having desired material properties with respect to hardness, density, resilience, etc. In particular, the foams can be varied in density from 20 to 70 kg&sol m3 and in 25% ILD hardness from 50 to 400 N&sol 314 cm2.
Inventors:
ISOBE MASAHIRO (JP)
UTSUMI HIROYUKI (JP)
OHKUBO KAZUHIKO (JP)
UTSUMI HIROYUKI (JP)
OHKUBO KAZUHIKO (JP)
Application Number:
PCT/JP2002/004999
Publication Date:
December 19, 2002
Filing Date:
May 23, 2002
Export Citation:
Assignee:
MITSUI TAKEDA CHEMICALS INC (JP)
ISOBE MASAHIRO (JP)
UTSUMI HIROYUKI (JP)
OHKUBO KAZUHIKO (JP)
ISOBE MASAHIRO (JP)
UTSUMI HIROYUKI (JP)
OHKUBO KAZUHIKO (JP)
International Classes:
B29B7/74; B29C44/34; C08G18/48; (IPC1-7): C08G18/48; B29C39/24
Foreign References:
| JPH07117045A | 1995-05-09 | |||
| JPH11293027A | 1999-10-26 | |||
| JPH0531739A | 1993-02-09 | |||
| JPH0564819A | 1993-03-19 | |||
| JP2001316442A | 2001-11-13 | |||
| JP2000135722A | 2000-05-16 | |||
| US5604267A | 1997-02-18 | |||
| JPH08231677A | 1996-09-10 |
Other References:
See also references of EP 1408063A4
Attorney, Agent or Firm:
Suzuki, Shunichiro (13-6 Nishigotanda 7-chome Shinagawa-ku, Tokyo, JP)
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