Title:
PRODUCTION OF LOW-DENSITY HIGH-ELASTIC SOFT POLYURETHANE FOAM HAVING EXCELLENT DURABILITY
Document Type and Number:
Japanese Patent JP3885851
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a soft polyurethane foam which consists of stable and highly durable cells, and has low-density and high-elasticity.
SOLUTION: A soft polyurethane foam which has excellent durability low- density and high-elasticity is obtained by reacting at least (A) a low NCO polyisocyanate which contains NCO at 2-15 wt.%, and is obtained by reacting at least (a1) a polyoxyalkylene polyol which has a nominal hydroxyl value of 2 or larger and a hydroxyl functional value of 20-60 mg KOH/g which is obtained by adding ethylene oxide at 25 wt.% or less to its end, and by dispersing, into A at 1 wt.% or more, a vinyl monomer or polymer fine particles which are obtained by polymerizing polyisocyanate and an active hydrogen- containing compound having a molecular weight of 18-200 and (a2) an organic polyisocyanate, (B) a high NCO polyisocyanate which contains NCO at 25 wt.% or more, and (C) an isocyanate reactive composition which contains at least water.
Inventors:
Kazunori Saeki
Takaki Shirono
Teruo Sato
Takaki Shirono
Teruo Sato
Application Number:
JP26405998A
Publication Date:
February 28, 2007
Filing Date:
September 02, 1998
Export Citation:
Assignee:
Nippon Polyurethane Industry Co., Ltd.
International Classes:
C08G18/10; C08L75/04; C08G18/72; C08G18/76; C08G101/00; (IPC1-7): C08L75/04; C08G18/72
Domestic Patent References:
| JP10501830A | ||||
| JP2000503043A | ||||
| JP3017115A |
Foreign References:
| WO1997019971A1 |
Attorney, Agent or Firm:
岡▲崎▼ 秀雄
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