Title:
POLYURETHANE FOAM AND TONER SEAL MEMBER
Document Type and Number:
WIPO Patent Application WO/2022/224509
Kind Code:
A1
Abstract:
Provided is a polyurethane foam that exhibits a high resilience, that is resistant to losses in cushioning behavior at low temperatures, and that has a low air permeability. The polyurethane foam is obtained from a composition comprising polyol and isocyanate and satisfies either of condition (1) and condition (2) and satisfies condition (3). (1) Designating the total amount of alkylene oxide units in the total polyol as 100 mass%, the content of the propylene oxide unit is at least 75 mass%. (2) Designating the total amount of alkylene oxide units in the total polyether polyol contained in the polyol as 100 mass%, the content of the propylene oxide unit is at least 85 mass%. (3) The A determined by a formula (a) and the B determined by a formula (b) satisfy 2400 ≤ A × B.
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Inventors:
KIRIYAMA TAKUYA (JP)
UCHIDA KENTO (JP)
UCHIDA KENTO (JP)
Application Number:
PCT/JP2022/001375
Publication Date:
October 27, 2022
Filing Date:
January 17, 2022
Export Citation:
Assignee:
INOUE MTP KK (JP)
ROGERS INOAC CORP (JP)
ROGERS INOAC CORP (JP)
International Classes:
C09K3/10; C08G18/40; C08G18/42; C08G18/48; C08G18/63; C08G18/72; G03G15/00; G03G15/08
Foreign References:
| JP2012082273A | 2012-04-26 | |||
| JP2017122191A | 2017-07-13 | |||
| JP2016069436A | 2016-05-09 | |||
| JP2018002791A | 2018-01-11 | |||
| JP2018171613A | 2018-11-08 | |||
| JP2003342343A | 2003-12-03 | |||
| JPH1025327A | 1998-01-27 |
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (JP)
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