Abstract 1. A PROCESS FOR PREPARATION OF DIURETHANES WHICH COMPRISES REACTING 1 MOL OF A BULK POLMER OF A MOLECULAR WEIGHT OF 1,000 TO 6,000 CONSISTING OF A WATER-INSOLUBLE POLYETHER OF A MOLECULAR WEIGHT OF 500 TO 3,000 ON THE BASIS OF PROPYLENE OXIDE, BUTYLENE OXIDE OR EPICHLOROHYDRINE, TO WHICH 35 TO 100%, REFERRED TO THE WEIGHT OF THE POLYETHER, OF ETHYLENE OXIDE WAS ADDED, AND 1 MOL OF A POLYETHER ALCOHOL OF THE FORMULA R-(C2H4O)NH IN WHICH R IS ALKYL OF 8 TO 18 CARBON ATOMS, MONO-, BISOR TRIS-ALKYL-BENZENE OR MONO-, BIS- OR TRIS-ALKYL NAPHTHALENE, EACH ALKYL CONTAINING 4 TO 22 CARBON ATOMS, AND N IS AN INTEGER OR 2 TO 10, WITH 1 MOL OF A DIISOCYANATE AT A TEMPERATURE OF 100 TO 200*C. IN THE MELT OR IN THE PRESENCE OF AN INERT ORGANIC SOLVENT.
A PROCESS FOR PREPARATION OF DIURETHANES WHICH COMPRISES REACTING 1 MOL OF A BULK POLMER OF A MOLECULAR WEIGHT OF 1,000 TO 6,000 CONSISTING OF A WATER-INSOLUBLE POLYETHER OF A MOLECULAR WEIGHT OF 500 TO 3,000 ON THE BASIS OF PROPYLENE OXIDE, BUTYLENE OXIDE OR EPICHLOROHYDRINE, TO WHICH 35 TO 100%, REFERRED TO THE WEIGHT OF THE POLYETHER, OF ETHYLENE OXIDE WAS ADDED, AND 1 MOL OF A POLYETHER ALCOHOL OF THE FORMULA
Claim 2
Dependent Claim
73 words
A PROCESS FOR PREPARATION OF DIURETHANES WHICH COMPRISES REACTING 1 MOL OF A BULK POLMER OF A MOLECULAR WEIGHT OF 1,000 TO 6,000 CONSISTING OF A WATER-INSOLUBLE POLYETHER OF A MOLECULAR WEIGHT OF 500 TO 3,000 ON THE BASIS OF PROPYLENE OXIDE, BUTYLENE OXIDE OR EPICHLOROHYDRINE, TO WHICH 35 TO 100%, REFERRED TO THE WEIGHT OF THE POLYETHER, OF ETHYLENE OXIDE WAS ADDED, AND 1 MOL OF A POLYETHER ALCOHOL OF THE FORMULA