Title:
ポリウレタンフォーム及びトナーシール部材
Document Type and Number:
Japanese Patent JP7373694
Kind Code:
B2
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:
Takuya Kiriyama
Kento Uchida
Kento Uchida
Application Number:
JP2023516043A
Publication Date:
November 02, 2023
Filing Date:
January 17, 2022
Export Citation:
Assignee:
Inoac Corporation
Rogers Inoac Co., Ltd.
Rogers Inoac Co., Ltd.
International Classes:
C08G18/48; C08G18/00; C08G18/40; C08G18/63; C09K3/10; G03G15/00; G03G15/08
Domestic Patent References:
| JP2011184640A | ||||
| JP2008127514A |
Foreign References:
| WO2013015245A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Grandum Patent Office