Title:
粘弾性発泡体
Document Type and Number:
Japanese Patent JP6619555
Kind Code:
B2
Abstract:
Embodiments of the invention provide for viscoelastic polyurethane foams. The foams are made from reaction system which includes (a) an isocyanate reactive component, (b) a isocyanate component, (c) one or more blowing agents, (d) a catalyst component, and (e) a silicone based surfactant. The isocyanate reactive component includes at least (i) from 25 to 80% by weight of at least one polyoxyethylene capped polyoxypropylene/polyoxyethylene polyol having a combined number average equivalent weight from 1300 to 1700, a polyoxyethylene percentage of between 75% and 95% by weight of the combined amounts of polyoxypropylene and polyoxyethylene, and a primary OH percentage of between 80 and 95% of the total number of OH groups of the polyoxyethylene capped polyoxypropylene/polyoxyethylene polyol, and (ii) from 5 to 30% by weight of the isocyanate reactive component of at least one low functionality polyol having a functionality of between 1.5 and 2.5, a combined number average equivalent weight from 500 to 1500 and an OH number of 40 to 70.
Inventors:
Elisa Corinti
Andrea Benvenuti
Alessio sabatini
Jean-Paul Macy
Francois M. Casatti
Brian Dicky
Andrea Benvenuti
Alessio sabatini
Jean-Paul Macy
Francois M. Casatti
Brian Dicky
Application Number:
JP2014532323A
Publication Date:
December 11, 2019
Filing Date:
September 20, 2012
Export Citation:
Assignee:
Dow Global Technologies LLC
International Classes:
C08G18/48; C08G18/00; C08G18/10
Domestic Patent References:
| JP4117417A | ||||
| JP2004527623A | ||||
| JP3081315A | ||||
| JP2009541546A | ||||
| JP2003514041A | ||||
| JP2003523425A |
Foreign References:
| US20110166244 |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Taro Ushio
Yasuhito Suzuki
Eiji Katayama
Norio Omori
Taro Ushio
Yasuhito Suzuki