专利检索 ap:("Eom Seok Yoo" OR "Bong Ku Kim" OR "Hak Gyun Kim" OR "Dong Woo Jeong" OR "Gil Ju Kim" OR "Jong Kweon Pyun" OR "Jun Yeol Heo" OR "Sang Do Park") AND inv:"Bong Ku Kim" 第 2 页

11.

发明授权
Rigid polyurethane foam and process for producing the same 失效

公开(公告)号：US06635685B2

公开(公告)日：2003-10-21

申请号：US10022247

申请日：2001-12-20

申请人： Sang Jo Suk , Bong Ku Kim , Sang Bu Jeon , Cheol Min Hur

发明人： Sang Jo Suk , Bong Ku Kim , Sang Bu Jeon , Cheol Min Hur

IPC分类号： C08G1832

CPC分类号： C08G18/482 , C08G2101/0025

摘要： A process for producing a rigid polyurethane foam provides a rigid polyurethane foam having a closed-cell size of about 80-130 &mgr;m and thus, improved heat insulating properties.

12.

发明授权
Rigid polyurethane foam and process for producing the same 失效

公开(公告)号：US06384098B1

公开(公告)日：2002-05-07

申请号：US09636757

申请日：2000-08-14

申请人： Sang Jo Suk , Bong Ku Kim , Sang Bu Jeon , Cheol Min Hur

发明人： Sang Jo Suk , Bong Ku Kim , Sang Bu Jeon , Cheol Min Hur

IPC分类号： C08G1832

CPC分类号： C08G18/482 , C08G2101/0025

摘要： A process for producing a rigid polyurethane foam provides a rigid polyurethane foam having a closed-cell size of about 80-130 &mgr;m and thus, improved heat insulating properties.