Patent Number: 6,254,678

Title: Apparatus for applying coating materials to overlapped individual sheets

Abstract: A method and apparatus for applying pressure sensitive adhesive to a substrate, in which the adhesive is deposited on a transfer surface, such as a circulating transfer belt, dried, and subsequently transferred to a plurality of overlapping sheets. The sheets are preferably coated with a primer or a low adhesion backsize, or both, prior to application of the adhesive.

Inventors: Ritter; Johannes A. (Seeheim-Jugenheim, DE)

Assignee: Minnesota Mining & Manufacturing Company

International Classification: B05C 1/08 (20060101); B05C 1/00 (20060101); B05C 1/02 (20060101); B05C 1/16 (20060101); B05C 1/14 (20060101); B05C 1/04 (20060101); B05C 9/14 (20060101); B05D 1/28 (20060101); B05D 5/10 (20060101); B05C 9/00 (20060101); B05C 9/04 (20060101); B05C 001/08 ()

Expiration Date: 07/03/2018