发明申请
US20060079589A1 Polyurethane foam sheet and process for layered sheet with the same
有权
聚氨酯泡沫板和层压板的加工方法相同
- 专利标题: Polyurethane foam sheet and process for layered sheet with the same
- 专利标题(中): 聚氨酯泡沫板和层压板的加工方法相同
-
申请号: US10540027申请日: 2003-12-22
-
公开(公告)号: US20060079589A1公开(公告)日: 2006-04-13
- 发明人: Shigeru Tadokoro , Yoshinori Kanagawa , Toshio Niwa , Toshifumi Tamaki
- 申请人: Shigeru Tadokoro , Yoshinori Kanagawa , Toshio Niwa , Toshifumi Tamaki
- 申请人地址: JP Sennan-shi JP Tokyo
- 专利权人: Kahei Co., Ltd.,Dainippon Ink and Chemicals, Inc.,
- 当前专利权人: Kahei Co., Ltd.,Dainippon Ink and Chemicals, Inc.,
- 当前专利权人地址: JP Sennan-shi JP Tokyo
- 优先权: JP2002-379816 20021227; JP2003-420728 20031215
- 国际申请: PCT/JP03/16476 WO 20031222
- 主分类号: C08G18/00
- IPC分类号: C08G18/00
摘要:
A method of producing a polyurethane foam sheet, and a laminated sheet that uses such a foam sheet, that can be applied to artificial leather, synthetic leather, and cushioning materials used in all manner of applications. A polyurethane foam sheet is produced by applying a liquid mixture, obtained by mixing together a heated and melted hot melt urethane prepolymer (A) containing isocyanate groups at molecular terminals, and a compound (B) containing at least 2 active hydrogen atom-containing groups, onto a substrate in a sheet-like manner, and then water foaming the liquid mixture by bringing the sheet-like liquid mixture into contact with water vapor or moisture (water). A laminated sheet is produced by bonding a third substrate to the polyurethane foam sheet.