Title:
POLYOL COMPOSITION, FLAME-RETARDANT HARD POLYURETHANE FOAM AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/125237
Kind Code:
A1
Abstract:
Provided are: a polyol composition which contains a flame retardant containing a prescribed phosphinic acid metal salt and/or a phosphate metal salt, said polyol composition making it possible to obtain a hard polyurethane foam which exhibits excellent flame retardancy and also being capable of suppressing particle precipitation and flocculation in a liquid in the case of said polyol composition and a starting material solution for a flame-retardant hard polyurethane foam; a flame-retardant hard polyurethane foam which uses the same; and a method for producing said foam. This polyol composition contains a polyol compound and a flame retardant. The polyol compound contains an aromatic polyester polyol and a Mannich polyol. The flame retardant contains one or more types of compound selected from the group consisting of a prescribed phosphinic acid metal salt and a phosphate metal salt.
Inventors:
OKUTANI TATSUYA (JP)
EHARA TAKAOMI (JP)
KUBOTA YUKIO (JP)
EHARA TAKAOMI (JP)
KUBOTA YUKIO (JP)
Application Number:
PCT/JP2020/047016
Publication Date:
June 24, 2021
Filing Date:
December 16, 2020
Export Citation:
Assignee:
NISSHINBO CHEMICAL INC (JP)
International Classes:
C08K5/5313; C08G18/00; C08G18/40; C08G18/42; C08G18/50; C08L75/06
Domestic Patent References:
| WO2020110332A1 | 2020-06-04 |
Foreign References:
| JP2019073607A | 2019-05-16 | |||
| JP2019065227A | 2019-04-25 | |||
| JP2019031652A | 2019-02-28 | |||
| JP2019031651A | 2019-02-28 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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