Patent Number: 9,803,088

Title: Enhanced performance of mineral based aqueous barrier coatings

Abstract: A method for preparing an aqueous based coating system, and coating systems made thereby, for coating onto paper and/or paperboard for providing barrier to liquid, moisture vapor, oil and grease including a pigment and a polymer emulsion system or natural based binding system. One alternative of the method includes surface treating a pigment to form a pigment system and mixing a polymer emulsion system or natural based binding system with the pigment system. Another alternative of the method includes mixing a pigment and polymer emulsion system or natural based binding system and hydrophobizing the polymer emulsion system or natural based binding system by adding silanes, siloxanes, siloxane/silicone resin blends, or their carbon based analogs.

Inventors: Iyer; Rajan R. (Watkinsville, GA), Berube; Richard (Holmdel, NJ), Sigman; Michael B. (Haddock, GA), Mathur; Sharad (Tega Cay, NC), Folmar; Kenneth W. (Macon, GA), Serafano; John D. (Grosse Ile, MI), Khokhani; Ashok (Manalapan, NJ), Rigney; Jennifer (Dearborn, MI), Godfrey; James Royce (Tennille, GA)

Assignee: BASF CORPORATION

International Classification: C08K 9/00 (20060101); C09D 5/02 (20060101); C09D 7/12 (20060101); C08L 9/08 (20060101); C08K 3/34 (20060101); C08L 25/12 (20060101); C08K 9/04 (20060101); C08K 9/06 (20060101)

Expiration Date: 2021-10-31 0:00:00