Patent Number: 6,168,751

Title: Method of making multilayer rolls having a thin fluoropolymer top coat

Abstract: A multi-layer roll having a thin fluoropolymer top coat on an elastomeric base layer bonded to a substantially rigid insert is provided. The top coat is formed by placing a thin non-self supporting fluoropolymer sleeve and about the insert, or wrapping within extruded fluoropolymer film about the insert which is placed in a mold sleeve and positioned in a book mold to holds the membrane in place. Liquid or flowable elastomer is injected into the space between the insert and flexible top coat at a point downstream of where the top layer is held in position between mold elements to prevent wrinkling. The mold is then heated to cure the elastomer.

Inventors: Delrosario; Chris F. (Demarest, NJ), Luke; Melvin F. (Butler, NJ), Marvil; Timothy D. (Sussex, NJ)

Assignee: Ames Rubber Corporation

International Classification: B29C 45/14 (20060101); B29C 70/00 (20060101); B29C 70/74 (20060101); B29C 063/18 (); B29C 067/04 ()

Expiration Date: 01/02/2018