公开(公告)号：US3684770A

公开(公告)日：1972-08-15

申请号：US3684770D

申请日：1970-07-30

Applicant: BAYER AG

Inventor： MEISERT ERNST ,  AWATER ALBERT ,  MUHLHAUSEN CORNELIUS ,  DOBEREINER UWE JENS

IPC: C08G18/00 ,  C08G18/10 ,  C08G18/48 ,  C08G18/65 ,  C08G22/10 ,  C08G22/14 ,  C08G22/16

CPC classification number: C08G18/4812 ,  C08G18/10 ,  C08G18/4804 ,  Y10S528/902 ,  Y10S528/906 ,  C08G18/3203 ,  C08G18/664

Abstract: Polyurethane elastomers are prepared by reacting a prepolymer (A) of a polyether diol and a diisocyanate with a mixture (B) of a polyester diol and a lower molecular weight glycol at a temperature of from about 60*C. to about 180*C. The reaction product of (A) and (B) is resistant to separation and the polyurethane elastomers combine all of the advantageous properties of both polyether polyurethanes and polyester polyurethanes and are useful as foils and coatings and can be molded into a variety of elastomeric products.

Abstract translation: 聚醚二醇和二异氰酸酯的预聚物（A）与聚酯二醇和低分子量二醇的混合物（B）在约60℃至约180℃的温度下反应制备聚氨酯弹性体。 （A）和（B）的反应产物耐分离，聚氨酯弹性体结合了聚醚聚氨酯和聚酯聚氨酯两者的所有有利性质，并且可用作箔和涂料并且可以模制成各种弹性体产品。

公开(公告)号：US3875118A

公开(公告)日：1975-04-01

申请号：US40078273

申请日：1973-09-26

Applicant: BAYER AG

Inventor： MEISERT ERNST ,  GOYERT WILHELM

IPC: D06N3/14 ,  C08G18/00 ,  C08G18/10 ,  C08G18/72 ,  C09D5/03 ,  C09D175/04 ,  D06M15/564 ,  D06M15/568 ,  D06M15/693 ,  C08G22/06 ,  C08G53/00 ,  C08G53/16

CPC classification number: C08G18/10 ,  C08G18/3206 ,  C08G18/7671 ,  C08G18/70

Abstract: WHERE R is a divalent group such as can be obtained by removing the hydroxyl groups from a diol which has a molecular weight of between 700 and 1750, and Q is a divalent aliphatic, cycloaliphatic, araliphatic or aromatic group which contains 2 to 20, and preferably, 4 to 15, carbon atoms; but Q

Polyurethane elastomers suitable for coating textiles, leather, paper and similar substrate and a multi-stage process for their production. The polyurethane elastomers are obtained from A. A POLYOL WITH AN AVERAGE MOLECULAR WEIGHT BETWEEN 900 AND 5300, B. 4,4''-DIISOCYANATODIPHENYLMETHANE AND C. A DIOL WITH A MOLECULAR WEIGHT BELOW 500, CHARACTERIZED IN THAT THE EQUIVALENT RATIO ((B)/(A)+(C)) IS BETWEEN 0.87 AND 1 AND IN THAT (A) CONTAINS AT LEAST 40% BY WEIGHT OF A POLYURETHANE OF THE FORMULA

公开(公告)号：US3692708A

公开(公告)日：1972-09-19

申请号：US3692708D

申请日：1970-05-14

Applicant: BAYER AG

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

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

CPC classification number: C08J9/26 ,  C08J2375/04 ,  D06N3/0052 ,  Y10S264/05 ,  Y10S264/62 ,  Y10S521/918

Abstract: 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.

公开(公告)号：US3517039A

公开(公告)日：1970-06-23

申请号：US3517039D

申请日：1966-05-23

Applicant: BAYER AG

Inventor： WAGNER KUNO ,  MEISERT ERNST ,  MENNICKEN GERHARD

IPC: C07C275/60 ,  C07C275/62 ,  C07C327/40 ,  C08F2/38 ,  C08G18/78 ,  C07C69/00

CPC classification number: C07C327/40 ,  C07C275/60 ,  C07C275/62 ,  C08G18/7818