Patent ID: 11059964

Abstract:
This specification discloses suspensions and method for making the suspensions. The suspension comprises a suspension medium and is loaded with an insoluble solid. The suspension medium is an aqueous solution made at least one soluble polymer and at least one thixotropic gum. The suspension medium can be loaded with high levels of solids (more than 15% by weight of the medium). The resulting suspension is highly stable and has low viscosity. In embodiments the suspension exhibits no significant sedimentation for at least 3 months, and has a viscosity of less than about 20,000 cP. In an illustrative embodiment, the suspensions may be used to improve the properties of corrugating adhesives by adding to a corrugating adhesive a suspension that has suspension medium comprising polyvinyl alcohol and gellan and that suspends unmodified high amylose starch.