Patent Number: 6,251,512

Title: Writable matte article

Abstract: A writable matte article comprising a water-absorbing layer coated on a substrate. The water absorbing layer is a unique blend of a crosslinked, water absorbing polymer particle, a water insoluble binder polymer with good adhesion to the film, and optionally, inert organic or inorganic particles that impart a matte finish to the coating. Advantageously, drying times of these inks using the present invention is reduced from about 10 minutes to 10 seconds. Preferred films are polyester and polyolefin-based films.

Inventors: Gustafson; Frederick John (Bloomington, MN), Hamer; Kevin Mark (St. Paul, MN), Kumar; Ramesh Chand (Maplewood, MN)

Assignee: 3M Innovative Properties Company

International Classification: B41M 5/52 (20060101); B41M 5/50 (20060101); G03G 7/00 (20060101); G09F 3/10 (20060101); B41M 5/00 (20060101); B32B 005/16 ()

Expiration Date: 06/26/2018