ADHESIVE

摘要

FIELD: chemistry. ^ SUBSTANCE: adhesive contains a hydroxyl-containing component, polyisocyanate and filler. The hydroxyl-containing component used is a linear aromatic polyester P-601 with 6.7-8.0% (100 pts.wt) hydroxyl groups. The polyisocyanate is prepolymer PP-2191 with weight ratio of NCO groups equal to 20.5% (70-90 pts.wt) and the filler is asbestos which has been processed for class A adhesives (10 pts.wt). ^ EFFECT: wider range of operating temperatures of the adhesive and faster hardening of the adhesive. ^ 2 tbl, 3 ex