公开(公告)号：US3838086A

公开(公告)日：1974-09-24

申请号：US34491473

申请日：1973-03-26

Applicant: BAYER AG

Inventor： MAYER MADER R ,  SCHNOERING H ,  PAMPUS G

IPC: C08F6/00 ,  C08C1/00 ,  C08C1/14 ,  C08J3/02 ,  C08B21/32 ,  C08C11/22 ,  C08C11/36

CPC classification number: C08C1/14

Abstract: A PROCESS FOR ISOLATING RUBBERS FROM THEIR AQUEOUS DISPERSIONS (LATICES) COMPRISING ADDING METHYL CELLULOSE TO AN AQUEOUS RUBBER DISPERSION IN A QUANTITY OF FROM 0.1 TO 10% BY WEIGHT BASED ON THE RUBBER, AND REMOVING THE WATER PRESENT.

公开(公告)号：US3838140A

公开(公告)日：1974-09-24

申请号：US30513472

申请日：1972-11-09

Applicant: BAYER AG

Inventor： MAYER MADER R ,  BOLDT J

IPC: C08F2/00 ,  C08F2/38 ,  C08F36/00 ,  C08F36/18 ,  C08F236/16 ,  C08L7/00 ,  C08L21/00 ,  C08D3/14 ,  C08F1/80 ,  C08F3/32

CPC classification number: C08F236/16

Abstract: A PROCESS FOR POLYMERISING A MONOMER COMPOSITION OF CHLOROPRENE AND 0 TO 50% BY WEIGHT OF ONE OR MORE OTHER COPOLYMERISABLE MONOMERS IN AQUEOUS EMULSION ON RADICAL FORMING CATALYSTS IN THE PRESENCE OF A SELECTED DIALKOXYXANTHATE DISULPHIDE AND A MIXTURE OF THE POLYMER THUS OBTAINED WITH A BENZENE INSOLUBLE CROSS-LINKED CHLOROPRENE POLYMER.

公开(公告)号：US3742075A

公开(公告)日：1973-06-26

申请号：US3742075D

申请日：1971-03-04

Applicant: BAYER AG

Inventor： MAYER MADER R ,  DINGES K

IPC: C07C17/42 ,  C07C17/40

CPC classification number: C07C17/42 ,  C07C21/20

Abstract: This invention relates to the stabilization of monomeric 2,3dichloro-1,3-butadiene, wherein a piperazine derivative corresponding to the formula:

IN WHICH R represents hydrogen, a linear of branched alkyl radical with one to five carbon atoms or a linear or branched hydroxyalkyl radical with two to five carbon atoms, is added to the monomer.

Abstract translation: 本发明涉及单体2,3-二氯-1,3-丁二烯的稳定化，其中对应于下式的哌嗪衍生物：