William R Goss

US Patent:

59767650, Nov 2, 1999

Filed:

Sep 4, 1998

Appl. No.:

9/148728

Inventors:

Ronald J. Kumpfmiller - Marietta GA
Martin L. Carter - Greeneville SC
Jung H. Tsao - Marietta GA
William K. Goss - Marietta GA
Michael W. Yang - Marietta GA

Assignee:

Polyfibron Technologies, Inc. - Atlanta GA

International Classification:

G03F 700

US Classification:

430306

Abstract:

Multilayer printing plates having layers with differing moduli are made by exposing through a photographic negative a plurality of layers comprising a solid photocurable cap and al least one liquid photocurable layer.

US Patent:

53709683, Dec 6, 1994

Filed:

Feb 15, 1994

Appl. No.:

8/197107

Inventors:

William K. Goss - Smyrna GA
Michael W. Yang - Marietta GA

Assignee:

W.R. Grace & Co.-Conn. - New York NY

International Classification:

G03C 1492

US Classification:

430271

Abstract:

Photocurable elements which are useful for preparing flexographic printing plates are provided which comprise a printing layer and a contiguous base layer, the printing layer comprising about 40 to 95 parts by weight of an elastomeric block copolymer, about 5 to 60 parts by weight of a second elastomeric polymer which is incompatible with the block copolymer, a photopolymerizable monomer, and a photoinitiator. The printing layer preferably also comprises an actinic radiation scattering and absorbing pigment. Also provided are relief printing plates prepared from the photocurable elements. The printing plates have a tack-free surface having excellent ink transfer properties, abrasion resistance, and solvent resistance. A high level of exposure latitude may also be provided in the photocurable elements of the invention.

US Patent:

57359830, Apr 7, 1998

Filed:

May 24, 1996

Appl. No.:

8/669267

Inventors:

William Krebs Goss - Marietta GA
Everett Eugene Garrett - Morristown TN

Assignee:

Polyfibron Technologies, Inc. - Atlanta GA

International Classification:

B32B 3100
B32B 3122
B32B 3130

US Classification:

156 64

Abstract:

An exemplary method for manufacturing a printing plate from photocurable elements comprises the step of extruding a photocurable polymer onto a moving carrier to achieve self-lamination in a nip-free manner.