公开(公告)号：US3839440A

公开(公告)日：1974-10-01

申请号：US412570

申请日：1970-01-19

Applicant: BAYER AG

Inventor： ZECHER W ,  ROOS E ,  MERTEN R

IPC: C07C275/28 ,  C07C275/30 ,  C07C275/34 ,  C08G18/38 ,  C07C127/16

CPC classification number: C08G18/3829 ,  C07C275/28 ,  C07C275/30 ,  C07C275/34 ,  C07C2601/16

Abstract: 1. AN N,N''-SUBSTITUTED UREA OF THE FORMULA R3-NH-CO-N(-R'')-C

公开(公告)号：US3792061A

公开(公告)日：1974-02-12

申请号：US3792061D

申请日：1970-09-10

Applicant: BAYER AG

Inventor： MERTEN R ,  ZECHER W

IPC: C07D207/40 ,  C07D207/404 ,  C07D207/452 ,  C07D209/48 ,  C07D487/04 ,  C08G73/00 ,  C08G73/14 ,  C07D27/52

CPC classification number: C07D207/404 ,  C07D209/48 ,  C07D487/04

Abstract: PROCESS FOR THE PRODUCTION OF IMIDOCARBOXYLIC ACIDS BY REACTION OF A CYLCIC DICARBOXYLIC ANHYDRIDE AND A POLUAMIDE AT A TEMPERATURE OF FROM 20 TO 450*C. THE PRODUCTS OBTAINED ARE SUITABLE FOR THE PRODUCTION OF PLASTICIZERS AND LACQUERS.

公开(公告)号：US3712907A

公开(公告)日：1973-01-23

申请号：US3712907D

申请日：1969-05-07

Applicant: BAYER AG

Inventor： GILCH H ,  BOTTENBRUCH L ,  ZECHER W ,  MERTEN R

IPC: C07D209/48 ,  C07D487/04 ,  C07D27/52

CPC classification number: C07D209/48 ,  C07D487/04

Abstract: PROCESS FOR THE PRODUCTION OF SUBSTITUENTS PHTHALIMIDON-CARBOXYLIC ACIDS BY REACTION OF A LACTAM HAVING MORE THAN 3 RING MEMBERS WITH A PHTHALIC ACID ANHYDRIDE DERIVATIVES BEING SUBSTITUTED BY AN ELECTROPHALIC SUBSTITUTENT WHICH IS MORE ELECTRONEGATIVE THAN HYDROGEN.

公开(公告)号：US3781246A

公开(公告)日：1973-12-25

申请号：US3781246D

申请日：1971-12-03

Applicant: BAYER AG

Inventor： ZECHER W ,  MERTEN R

IPC: C08G73/10 ,  C08G20/32

CPC classification number: C08G73/1003

Abstract: A PROCESS FOR THE PRODUCTION OF POLYIMIDES BY REACTION OF SCHIFF''S BASES AND CYCLIC DICARBOXYLIC ACID ANHYDRIDES AT TEMPERATURES OF FROM 0 TO 450*C.

公开(公告)号：US3752791A

公开(公告)日：1973-08-14

申请号：US3752791D

申请日：1970-10-23

Applicant: BAYER AG

Inventor： ZECHER W ,  MERTEN R

IPC: C08G18/00 ,  C08G18/34 ,  C08G18/60 ,  C08G73/00 ,  C08G73/14 ,  C08G20/38

CPC classification number: C08G18/603 ,  C08G18/34 ,  C08G73/14

Abstract: THE INVENTION RELATES TO A PROCESS WHICH COMPRISES REACTING A POLYAMIDE WITH A POLYISOCYANATE HAVING AT LEAST TWO NCO GROUPS, OR A COMPOUND CAPABLE OF REACTING AS SUCH A POLYISOCYANATE UNDER THE REACTION CONDITIONS, AND A CYCLIC DICARBOXYLIC ACID ANHYDRIDE WHICH CONTAINS AT LEAST ONE ADDITIONAL GROUP CAPABLE OF CONDENSATION OR ADDITION, OR A COMPOUND CAPABLE OF FORMING SUCH AN ANHYDRIDE UNDER THE REACTION CONDITIONS, AT A TEMPERATURE OF FROM -20 TO +450*C. PREDOMINANTLY, HIGH MOLECULAR WEIGHT REACTION PRODUCTS, DISTINGUISHED BY THEIR OUTSTANDING SOLUBILITY, ARE OBTAINED.

公开(公告)号：DK111023B

公开(公告)日：1968-05-06

申请号：DK7665

申请日：1965-01-08

Applicant: BAYER AG

Inventor： ZECHER W ,  NEUMANN W ,  ZANKL E ,  BLOMEYER F ,  HOLTSCHMIDT H

IPC: C08G18/36 ,  C08G18/77 ,  C08G21/14

公开(公告)号：DK140849C

公开(公告)日：1980-04-28

申请号：DK405475

申请日：1975-09-11

Applicant: BAYER AG

Inventor： ZECHER W ,  CLARENZ W ,  DUENWALD W ,  MERTEN R

IPC: C08G18/00 ,  C08G18/34 ,  C08G18/38 ,  C08G73/10 ,  C09D175/00 ,  H01B3/30

公开(公告)号：SE359305B

公开(公告)日：1973-08-27

申请号：SE1059668

申请日：1968-08-06

Applicant: BAYER AG

Inventor： ZECHER W ,  MERTEN R

IPC: C08G73/10 ,  C08G20/32 ,  C08G33/02

Abstract: 1,239,422. Coated products. FARBENFABRIKEN BAYER A.G. 26 June, 1968 [7 Aug., 1967 (2)], No. 30433/68. Heading B2E. [Also in Division C3] Polyimides are produced by a process which comprises reacting (a) a Schiff's base Xz- R 1 -N=CR 2 .R 3 , or a trimer thereof, where R 1 is a z+1 valent aliphatic or aromatic radical; R 2 and R 3 are each H, alkyl, cycloalkyl, aralkyl or aryl or together complete a 5 to 7 membered carbo-or hetero-cyclic ring; X is -N=CR 2 .R 3 ; -OH, or -NH 2 ; and z is 1 or 2, at 0 to 450‹C with (b) an aliphatic or aromatic compound containing 1, 2 or 3 dicarboxylic acid cyclic anhydride groups, and where there is only 1 anhydride group at least one other group able to participate in the polycondensation reaction. Either or both of (a) and (b) may be formed in situ. Numerous suitable reactants are specified. Other polyfunctional reactants such as diamines, polyols, e.g. glycol, and polycarboxylic acids (including OH or COOH terminated polyethers or polyesters), or polyisocyanates may also be present. Reaction may be effected in various solvents in the presence of catalysts, fillers, pigments or polyesters giving products suitable for lacquers, films and mouldings. In Examples trimellitic or pyromellitic anhydride or trimellitic anhydride glycol ester is reacted with various Schiff's bases. In Exs. 5, 6 and 12 an OH-terminated terephthalic acid/glycol/ glycerol polyester is included in the reaction while in Ex. 8 such a polyester is mixed with the polymer lacquer before stoving. The lacquers are applied to wires or to glass or metal plates and stoved. They may be mixed with terephthalic acid polyesters.

公开(公告)号：SE7510129A

公开(公告)日：1976-03-15

申请号：SE7510129

申请日：1975-09-11

Applicant: BAYER AG

Inventor： ZECHER W ,  CLARENZ W ,  DUNWALD W ,  MERTEN R

IPC: C08G18/00 ,  C08G18/34 ,  C08G18/38 ,  C08G73/10 ,  C09D175/00 ,  H01B3/30 ,  C08G18/28

CPC classification number: B32B27/06 ,  B32B15/08 ,  B32B27/28 ,  B32B2311/00 ,  B32B2315/08 ,  C08G18/343 ,  C08G18/3855 ,  C08G73/1035

公开(公告)号：DK405475A

公开(公告)日：1976-03-13

申请号：DK405475

申请日：1975-09-11

Applicant: BAYER AG

Inventor： ZECHER W ,  CLARENZ W ,  DYNWALD W ,  MERTEN R

IPC: C08G18/00 ,  C08G18/34 ,  C08G18/38 ,  C08G73/10 ,  C09D175/00 ,  H01B3/30