POLYISOBUTYLENES AND PROCESS FOR MAKING SAME

摘要

The present invention generally relates to alcohol-terminated polyisobutylene (PIB) compounds, and to a process for making such compounds. In one embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds, and to a process for making such compounds. In still another embodiment, the present invention relates to polyisobutylene compounds that can be used to synthesize polyurethanes, to polyurethane compounds made via the use of such polyisobutylene compounds, and to processes for making such compounds. In yet another embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds having two or more primary alcohol termini and to a process for making such compounds. In yet another embodiment, the present invention relates to primary terminated polyisobutylene compounds having two or more primary termini selected from amine groups or methacrylate groups.

主权项

1. A polyisobutylene-based polyurethane comprising the reaction product of a primary alcohol-terminated polyisobutylene and a diisocyanate, wherein the polyisobutylene-based polyurethane does not degrade after 4 hours when exposed to concentrated HNO3 at room temperature and wherein the polyisobutylene-based polyurethane exhibits no visible color change after 4 hours of exposure to concentrated HNO3.