High release coatings for printing and coating rollers

Details High release coatings for printing and coating rollers High release coatings for printing and coating rollers

1998-02-12

1999-12-07

Cuda, T.

Roll or roller

Concentric layered annulus

Specific composition

492 59, B23P 1500

Patent

active

059974567

ABSTRACT:
Coated rollers (10) with a hard, high release, non-marking, coating with excellent non-stick properties are disclosed for use as idler rollers, or as laminating, coating or printing rollers. The release coating comprises an outermost coat (15) which includes a silicone-epoxy emulsion in a water-based curing system that is sprayed or brushed on a roller core and then allowed to cure at room temperature. The release coating further comprises a primer coat (16) of silicone-epoxy in a water base that is also sprayed or brushed on the roller to form a coat and then allowed to cure at room temperature. Methods for making such rollers are also disclosed.

REFERENCES:
patent: 4804576 (1989-02-01), Kuge et al.
patent: 5153660 (1992-10-01), Goto
patent: 5376448 (1994-12-01), Suzuki et al.
patent: 5541001 (1996-07-01), Vreeland et al.
patent: 5547759 (1996-08-01), Chen et al.
patent: 5572275 (1996-11-01), Jinzai
patent: 5582885 (1996-12-01), Nakamura et al.
"Tat' Coatings--An Engineering Guide to the Technology and Applications," May 15, 1997, Spray-Tech, Inc., P.O. Box 641, Sandy Hook, CT 06482.
"Anti-Graffiti Top Coat Series S-100," c. 1995, Spray-Tech, Inc., 15 Commerce Road, Newtown, CT 06470.
European Search Report dated Apr. 5, 1999 for PCT/US99/00926.

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