Title:
低反発性ポリウレタンフォームの製造方法と低反発性ポリウレタンフォーム用組成物と低反発性ポリウレタンフォーム
Document Type and Number:
Japanese Patent JP7220009
Kind Code:
B2
Abstract:
To provide a low-repulsive polyurethane foam capable of suppressing an increase in hardness in a low temperature region.SOLUTION: A low-repulsive polyurethane foam is produced by an operation of reacting and foaming polyol which contains polyether polyol A having a molecular weight of 3,700-7,000, the number of functional groups of 2-4 and a hydroxyl value of 20-50 mgKOH/g, polyether polyol B having a molecular weight per the number of one functional group of 800-1,200, the number of functional groups of 2-3 and a hydroxyl value of 40-70 mgKOH/g so that a weight ratio of the polyol A to the polyol B is polyol A:polyol B=55:45 to 90:10, and MDI-based isocyanate while setting an isocyanate index at 60 to 115 in the presence of a foaming agent and a catalyst. The produced low-repulsive polyurethane foam F is provided on the surface of a sheet cushion 100 for vehicle.SELECTED DRAWING: Figure 1
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Inventors:
Yukihiro Fukaya
Application Number:
JP2021073356A
Publication Date:
February 09, 2023
Filing Date:
April 23, 2021
Export Citation:
Assignee:
Inoac Corporation
International Classes:
C08G18/48; C08G18/00; C08G18/76
Domestic Patent References:
| JP2003231747A | ||||
| JP11130833A | ||||
| JP2052607A | ||||
| JP2014005441A | ||||
| JP2015134970A |
Foreign References:
| US6653363 |
Attorney, Agent or Firm:
Patent Attorney Corporation Taiyo International Patent Office