公开(公告)号：US3732186A

公开(公告)日：1973-05-08

申请号：US3732186D

申请日：1971-08-05

Applicant: BAYER AG

Inventor： DUNWALD W ,  MIELKE K ,  MULLER G ,  MERTEN R

IPC: C08G18/34 ,  C08G18/58 ,  C08G18/80 ,  C09D5/25 ,  C08G22/00

CPC classification number: C08G18/58 ,  C08G18/34 ,  C08G18/8048 ,  Y10T428/31605 ,  Y10T428/31678

Abstract: A POLYISOCYANATE COMPOSITION CONTAINING AT LEAST TWO FREE -NCO GROUPS AND AT LEAST ONE CYCLIC IMIDE GROUP IN THE MOLECULE AND HAVING A MOLECULAR WEIGHT OF FROM ABOUT 200 TO ABOUT 10,000 ARE PREPARED BY REACTING, IN AN INERT ORGANIC SOLVENT, ALIPHATIC AND AROMATIC ANHYDRIDES WITH ORGANIC POLYISOCYANATES. THE POLYISOCYANATE OF THE INVENTION ARE PARTICULARLY USEFUL AS PRECURSORS IN THE PREPARATION OF LACQUERS AND COATINGS.

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：SE7706732L

公开(公告)日：1977-12-11

申请号：SE7706732

申请日：1977-06-09

Applicant: BAYER AG

Inventor： DUNWALD W ,  LEWALTER J ,  MERTEN R ,  MULLER H-J

IPC: C08G18/00 ,  C08G18/30 ,  C08G18/32 ,  C08G18/80 ,  C09D175/00 ,  C07C

Abstract: This invention relates to a new process for the preparation of oligourethanes having isocyanate end groups blocked with alkanol and/or cycloalkanol groups, the compounds which can be obtained by this process and their use for the production of polyurethane resins by the isocyanate polyaddition process.

公开(公告)号：SE7501030A

公开(公告)日：1975-08-04

申请号：SE7501030

申请日：1975-01-30

Applicant: BAYER AG

Inventor： DUNWALD W ,  LEWALTER J ,  MERTEN R

IPC: B32B15/04 ,  B32B15/08 ,  B32B15/088 ,  C08G18/00 ,  C08G18/34 ,  C08G18/38 ,  C08G73/06 ,  C09D179/04

CPC classification number: C08G18/3825 ,  C08G18/3821 ,  C08G73/0616

公开(公告)号：SE437379B

公开(公告)日：1985-02-25

申请号：SE7706732

申请日：1977-06-09

Applicant: BAYER AG

Inventor： DUNWALD W ,  LEWALTER J ,  MERTEN R ,  MULLER H-J

IPC: C08G18/00 ,  C08G18/30 ,  C08G18/32 ,  C08G18/80 ,  C09D175/00

Abstract: This invention relates to a new process for the preparation of oligourethanes having isocyanate end groups blocked with alkanol and/or cycloalkanol groups, the compounds which can be obtained by this process and their use for the production of polyurethane resins by the isocyanate polyaddition process.

公开(公告)号：BR7500659A

公开(公告)日：1975-11-11

申请号：BR7500659

申请日：1975-01-31

Applicant: BAYER AG

Inventor： DUNWALD W ,  LEWALTER J ,  MERTEN R

IPC: B32B15/04 ,  B32B15/08 ,  B32B15/088 ,  C08G18/00 ,  C08G18/34 ,  C08G18/38 ,  C08G73/06 ,  C09D179/04

Abstract: Process for the preparation of polyhydantoins or polyparabanic acids, characterized in that bis- or polyglycine derivatives or bis- or poly-monoamidooxalic acid derivatives are heated to temperatures of 20 DEG to 250 DEG C with di- or polyiso(thio)cyanate derivatives without solvents and the highly fluid melt which has a melt viscosity of at the most 40,000 m.Pa.s. is optionally subjected to a shaping process and is polycondensed by adjustment to the reaction of 80 DEG to 700 DEG C.

公开(公告)号：SE378254B

公开(公告)日：1975-08-25

申请号：SE359071

申请日：1968-06-26

Applicant: BAYER AG

Inventor： MERTEN R ,  DUNWALD W ,  MIELKE K-H ,  FISCHER R

IPC: C09B20060101 ,  C09D3/70 ,  C09D3/72

公开(公告)号：AU507004B2

公开(公告)日：1980-01-31

申请号：AU2592677

申请日：1977-06-08

Applicant: BAYER AG

Inventor： DUNWALD W ,  MERTEN R ,  LEWALTER J ,  MULLER H-J

IPC: C08G18/00 ,  C08G18/30 ,  C08G18/32 ,  C08G18/80 ,  C09D175/00 ,  C08G18/40

Abstract: This invention relates to a new process for the preparation of oligourethanes having isocyanate end groups blocked with alkanol and/or cycloalkanol groups, the compounds which can be obtained by this process and their use for the production of polyurethane resins by the isocyanate polyaddition process.

公开(公告)号：SE7900886A

公开(公告)日：1979-02-01

申请号：SE7900886

申请日：1979-02-01

Applicant: BAYER AG

Inventor： DUNWALD W ,  LEWALTER J ,  MERTEN R

IPC: B32B15/04 ,  B32B15/08 ,  B32B15/088 ,  C08G18/00 ,  C08G18/34 ,  C08G18/38 ,  C08G73/06 ,  C09D179/04

CPC classification number: C08G18/3825 ,  C08G18/3821 ,  C08G73/0616

公开(公告)号：BR7703748A

公开(公告)日：1978-04-18

申请号：BR7703748

申请日：1977-06-08

Applicant: BAYER AG

Inventor： MUELLER H ,  LEWALTER J ,  MERTEN R ,  DUNWALD W

IPC: C08G18/00 ,  C08G18/30 ,  C08G18/32 ,  C08G18/80 ,  C09D175/00 ,  C07C125/06

Abstract: This invention relates to a new process for the preparation of oligourethanes having isocyanate end groups blocked with alkanol and/or cycloalkanol groups, the compounds which can be obtained by this process and their use for the production of polyurethane resins by the isocyanate polyaddition process.