| abstract |
A temperature-activated catalyst for polyurethane or liquid polymer cures comprising the catalyst supported on, e.g. mounted on or bound into, a polymer which is incompatible with, viz. insoluble in, the reacting polymer phase. n The catalyst may contain organotin groupings and the polymer may be mobile or rubber and have a linear polymer backbone , e.g. styrene-allyl alcohol. n The polymer may be glassy and be ground to a fine powder. |