公开(公告)号：DE3003647A1

公开(公告)日：1981-08-06

申请号：DE3003647

申请日：1980-02-01

Applicant: BASF AG

Inventor： LACH DIETRICH DIPL CHEM DR ,  STREICHER ROLF ,  KNAFLIC FRANCE DIPL ING ,  BOLZ GERHARD DIPL CHEM DR

IPC: C08G12/08 ,  C08G12/34 ,  C08G12/40 ,  C08G14/06 ,  C08L61/20 ,  C08L61/34 ,  C14C3/02 ,  C14C3/20 ,  C14C3/18 ,  C14C3/04

公开(公告)号：DE2346304A1

公开(公告)日：1975-04-03

申请号：DE2346304

申请日：1973-09-14

Applicant: BASF AG

Inventor： BOLZ GERHARD DIPL CHEM DR ,  WIERSDORFF WALTER-WIELANT DIPL

IPC: C07D307/77 ,  C07D20060101 ,  C07D307/83 ,  C07D307/89 ,  C07D307/93

Abstract: New 4-oxa-5-hydroxypolycycloalkenones-(3) and a new method for their Production by Diels-Alder reaction of cycloalkapolyenes with 2-hydroxy-2,5-dihydrofuran-5-ones. The new and known compounds obtainable by the process of the invention are starting materials for the production of dyes, plastics, pharmaceutical products and pest control agents.

公开(公告)号：DE2346305A1

公开(公告)日：1975-04-03

申请号：DE2346305

申请日：1973-09-14

Applicant: BASF AG

Inventor： AMANN AUGUST DR MED ,  BOLZ GERHARD DIPL CHEM DR ,  WIERSDORFF WALTER-WIELANT DIPL ,  GIERTZ HUBERT PROF DR MED ,  WILSMANN KLAUS DR MED

IPC: C07D307/77 ,  A61K20060101 ,  A61K31/27 ,  A61K31/34 ,  A61K31/365 ,  C07D20060101 ,  C07D307/89 ,  C07D307/93

公开(公告)号：DE3115646A1

公开(公告)日：1982-11-18

申请号：DE3115646

申请日：1981-04-18

Applicant: BASF AG

Inventor： LACH DIETRICH DIPL CHEM DR ,  STREICHER ROLF ,  BOLZ GERHARD DIPL CHEM DR

IPC: C14C3/08 ,  C08G12/40 ,  C14C3/06 ,  C14C3/16 ,  C14C3/20 ,  C14C3/28

Abstract: Water-soluble or self-dispersing resin tanning agents are prepared by heating from 5 to 30% by weight of melamine, from 15 to 45% by weight of urea, from 20 to 35% by weight (calculated as anhydrous material) of formaldehyde and from 15 to 55% by weight of sodium bisulfite or of a corresponding amount of some other salt of sulfurous acid for from two to twelve hours in aqueous solution at 40 DEG -120 DEG C. and a pH of from 5 to 9.