Freeze-thaw stable paint formulation

摘要

The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO 2 particles and attached and unattached polymeric binder, and a sufficient amount of a secondary alcohol ethoxylate of the formula C 10-15 H 22-32 O(CH 2 CH 2 O) x H to give 35 to 90 weight percent attachment of polymeric binder to the TiO 2 particles, based on the weight of total polymeric binder in the pre-paint composite, where x is from 15 to 50; and the O(CH 2 CH 2 O) x H group is bonded to a CH group on the C 10-15 H 22-32 chain. The present invention also relates to a coatings composition containing the composite as well as a process for preparing the pre-paint composite and the coatings composition.