Title:
軟質ポリウレタンフォームの製造方法
Document Type and Number:
Japanese Patent JP4910702
Kind Code:
B2
Abstract:
A process for producing a flexible polyurethane foam having a low transmissibility at resonance frequency, of which a rebound resilience can be suppressed, without using a foam stabilizer, is provided. In production of a flexible polyurethane foam; an isocyanate containing TDI as the main component is used as an isocyanate; and a polyol containing from 20 to 50 mass% of a polyol (A) having an oxyethylene group content of from 10 to 20 mass% and having a hydroxyl value of from 15 to 56 mgKOH/g, which is obtained by subjecting propylene oxide to ring opening addition polymerization to an initiator by using a double metal cyanide complex catalyst, and further subjecting ethylene oxide to ring opening addition polymerization by using an alkali metal compound catalyst or a phosphazenium catalyst, is used as a polyol.
Inventors:
Ryuji Kimura
Takayuki Sasaki
Takayuki Sasaki
Application Number:
JP2006545138A
Publication Date:
April 04, 2012
Filing Date:
November 17, 2005
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C08G18/48; C08G18/63; C08G101/00
Domestic Patent References:
| JP200189547A |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Masakazu Aoyama
Suzuki Mitsuyoshi
Noriko Yanai
Masatake Shiga
Masakazu Aoyama
Suzuki Mitsuyoshi
Noriko Yanai