Thickening agents.

摘要

Thickening agents for thickening non-aqueous solvent-containing compositions are disclosed. Typically, the thickening agents are the reaction product of a polyol containing at least two hydroxyl groups; a polyisocyanate containing at least two isocyanato groups; and an active hydrogen compound. A method of thickening non-aqueous systems by admixing with the novel thickening agents is also disclosed.