公开(公告)号：US3579360A

公开(公告)日：1971-05-18

申请号：US3579360D

申请日：1967-07-06

申请人： NESTLE SA

发明人： REY LOUISRENE ,  DOUSSET MONICK ,  CHAUFFARD FRANCOISE

IPC分类号： A21D6/00 ,  A21D13/08 ,  A23F5/32 ,  A23F5/48 ,  A23L3/44 ,  C07F5/00 ,  C08J9/40 ,  F26B5/06 ,  A23F1/06

CPC分类号： C08J9/40 ,  A21D6/001 ,  A21D6/008 ,  A21D13/80 ,  A23F5/32 ,  A23F5/48 ,  A23F5/486 ,  A23L3/44 ,  C07F5/006 ,  F26B5/06

摘要： POROUS COMPOSITE MATERIALS, CONSISTING OF A CONTINUOUS PHASE AND A DISPERSE PHASE IN INTIMATE ASSOCIATION WITH THE CONTINUOUS PHASE MAY BE OBTAINED BY THE APPLICATION OF FREEZE-DRYING TECHNIQUES. THE MATERIALS MAY BE PREPARED EITHER BY FREE-DRYING A FIRST SOLUTION, IMPREGNATING THE DRY MATERIAL WITH A SECOND SOLUTION AND AGAIN FREEZEDRYING, OR BY FREEZE-DRYING A SYSTEM CONSISTING OF TWO SOLUTES DISSOLVED IN DIFFERENT SOLVENTS WHICH MAY BE IMMISIBLE. FREEZE-DRYING OF BOTH AQUEOUS AND NON-AQUEOUS SYSTEMS IS ENVISAGED.