公开(公告)号：US3632531A

公开(公告)日：1972-01-04

申请号：US3632531D

申请日：1967-08-25

申请人： MIDWEST RESEARCH INST

发明人： RUSH DONALD J ,  CHRISTIE HOWARD W ,  BYERLEY THOMAS J

IPC分类号： C08G18/54 ,  C08G22/44

CPC分类号： C08G18/54 ,  C08G2101/0083

摘要： FOAMED POLYURETHANE RESINS WHICH ARE FIRE RETARDENT AND HEAT RESISTANT, PREPARED FROM AN AROMATIC POLYISOCYANATE AND A METHLOL RESIN WHICH IS THE REACTION PRODUCT OF A METHYLOL RESIN FORMER AND AN ALDEHYDE. THE FOAM IS PREFERABLY POST CURED. THE CHARACTER OF THE METHYLOL RESIN AND THE REACTION PARAMETERS FOR PREPARING THE METHYLOL RESIN AND THE FORM ARE SO CONTROLLED AS TO PROVIDE FIRE RETARDENT AND HEAT RESISTANT CHARACTERISTICS IN THE FOAMED PRODUCTS.

公开(公告)号：US3078201A

公开(公告)日：1963-02-19

申请号：US1641760

申请日：1960-03-21

申请人： MIDWEST RESEARCH INST

发明人： CHRISTIE HOWARD W

IPC分类号： B29C65/00 ,  B29C65/18

CPC分类号： B29C65/18 ,  B29C65/305 ,  B29C66/1122 ,  B29C66/3282 ,  B29C66/43121 ,  B29C66/723 ,  B29C66/72321 ,  B29C66/72343 ,  B29C66/80 ,  B29C66/81422 ,  B29C66/81427 ,  B29C66/83221 ,  B29L2009/00 ,  B29L2009/003 ,  Y10T428/24537 ,  Y10T428/31692