COMMIXTURES FOR USE IN RHEOLOGY MODIFICATION

摘要

The use of a commixture as a sag control agent (SCA) in a composition to be cured at a temperature (Tour) greater than 60°C, said composition comprising a binder and the commixture and wherein said commixture comprises: (a) a thixotropy-inducing particulate polyurea product having a melting temperature (Tm1) at least 10°C below the intended curing temperature, thereby satisfying the requirement T m1 < (Tcur-10°C); and (b) a second thixotropy-inducing particulate component that retains its particulate nature at temperatures at least up to said curing temperature.