公开(公告)号：US3692708A

公开(公告)日：1972-09-19

申请号：US3692708D

申请日：1970-05-14

申请人： BAYER AG

发明人： MEISERT ERNST ,  STRIEGLER HELLMUT ,  KOCH HANS-JOACHIM ,  KLEBERT WOLFGANG

IPC分类号： C08J9/26 ,  D06N3/00 ,  B29D7/14 ,  B29D27/00 ,  C08G22/14

CPC分类号： C08J9/26 ,  C08J2375/04 ,  D06N3/0052 ,  Y10S264/05 ,  Y10S264/62 ,  Y10S521/918

摘要： POROUS SHEET STRUCTURES AND A PROCESS FOR PRODUCING THEM FROM THERMOPLASTIC ELASTOMERS ARE PROVIDED WHEREIN ABOUT 100 PARTS BY WEIGHT OF A THERMOPLASTIC ELASTOMER ARE PROCESSED IN THE PRESENCE OF FROM ABOUT 60 TO ABOUT 150 PARTS BY WEIGHT OF SODIUM-HYDROGEN CARBONATE AND FROM ABOUT 3 TO ABOUT 15 PARTS BY WEIGHT OF AN ALIPHATIC ORGANIC CARBOXYLIC ACID HAVING A MOLECULAR WEIGHT OF FROM ABOUT 150 TO ABOUT 5000 AND AN ACID NUMBER OF AT LEAST 2.5 ON CALENDERS, PARTICULARLY HEATED CALENDERS, AND THE FILMS OBTAINED ARE FREED FROM SALT BY A SUBSEQUENT RINSING PROCESS. THE STRUCTURES THUS OBTAINED ARE EXCELLENT LEATHER SUBSTITUTES.