VERFAHREN ZUR HERSTELLUNG VON VULKANISIERTEN, URETHANGRUPPEN AUFWEISENDEN ELASTOMEREN

摘要

The instant invention is directed to a process for the production of vulcanized elastomers containing urethane groups by casting, comprising: (A) mixing the following components: (1) liquid diene polymers containing isocyanate reactive functional groups, (2) compounds having molecular weights of from 400 to 10,000, and containing at least two hydroxyl groups, (3) polyisocyanates, (4) cross-linking agents having molecular weights of from 32 to 400 and containing at least two active hydrogen atoms, (5) vulcanization agents used for vulcanization and optionally (6) reinforcing fillers; and subsequently (B) pouring the mixture into a mold and allowing the mixture to react in the mold; and subsequently (C) vulcanizing the molded product at temperatures above 120 DEG C.