Chemically-curing two-part polyurethane composition.

摘要

A chemically-curing, two-part polyurethane composition for use as an adhesive/sealant in double glazing comprising Part A comprising a prepolymer based on hydroxyl-terminated polybutadienne and Part B comprising polyisocyanates wherein, to enhance resistance to argon permeation, at least Part A and optionally Part B includes a plasticiser comprising a halogenated hydrocarbon, preferably a chlorinated paraffin, and wherein the catalyst is a tin-based catalyst.