发明名称 |
Process for molding an integral skin foam using an evacuated mold cavity |
摘要 |
A process for molding a semi-rigid integral skin foam which comprising an integral skin having a low degree of foaming and a core having a high degree of foaming. The process includes evacuating a mold cavity to a pressure of from above 50 to 700 Torr; injecting, into the evacuated mold cavity, a polyurethane material which contains a polyol component and an isocyanate component with air bubbles introduced therein by air loading, in the substantial absence of a foaming agent; and foaming the material to fill the cavity.
|
申请公布号 |
US5476619(A) |
申请公布日期 |
1995.12.19 |
申请号 |
US19940227050 |
申请日期 |
1994.04.13 |
申请人 |
TOYODA GOSEI CO., LTD. |
发明人 |
NAKAMURA, MICHIHIKO;ISHIKAKE, MASANAO;KAWAKITA, YUKIO;MABUCHI, AKIRA;YAMANAKA, OSAMU |
分类号 |
B29C45/00;B29B7/76;B29C39/42;B29C44/04;B29C45/34;B29C67/24;B29K75/00;B29K105/04;C08G18/08;C08G18/10;C08J9/30;C08J9/34;(IPC1-7):B29C44/06 |
主分类号 |
B29C45/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|