Joseph R Rach, 783699 Majestic Oak Dr SW, Gainesville, GA 30504

2012008, Apr 5, 2012

Sep 30, 2010

12/895561

Peter D. Battisti - Alpharetta GA, US
Joseph F. Rach - Suwanee GA, US
Joao P. Maneira - Alpharetta GA, US

CHEMENCE MEDICAL, INC. - Alpharetta GA

G03F 7/004
G03F 7/20

4302701, 430306

A flexography substrate for making I-plates with liquid photopolymers has, in addition to the tie-coat applied to one side to hold the photopolymers in place on the substrate, a micro-porous coating applied to the other side, enabling a masking image to be applied to it using an inkjet printer. In this way, one single sheet of film performs the dual role of substrate and I-plate masking film. By eliminating a sheet of film, the invention provides cost, quality, and environmental benefits.

2013025, Sep 26, 2013

Sep 14, 2012

13/618507

Peter D. Battisti - Alpharetta GA, US
Joseph F. Rach - Suwanee GA, US
John P. Maneira - Alpharetta GA, US

Chemence Medical, Inc. - Alpharetta GA

B41N 1/12

428 3222, 428 418, 427261, 427258, 427510

A flexography substrate for making I-plates with liquid photopolymers has, in addition to the tie-coat applied to one side to hold the photopolymers in place on the substrate, an adhesive layer applied to the other side. A clear release liner is applied to the adhesive layer, the adhesive layer adhering less firmly to the release liner than to the substrate. An inkjet-receptive coating is applied to the clear release liner. The masking image for the I-plate is applied to the clear release liner using an inkjet printer. After the substrate has been used to make a flexographic plate, the release liner is peeled off of the adhesive layer. The flexographic plate can then be applied to a print roll without the step of manually applying adhesive to it.

5962111, Oct 5, 1999

Jan 27, 1998

9/014138

Joseph F. Rach - Newark DE

Mac Dermid, Incorporated - Waterbury CT

G03F 7095
G03F 709
B32B 310
B32B 2716

428195

A compressible printing plate is prepared by casting liquid photopolymerizable resin directly onto a compressible material having open cells on its surface. The photopolymerizable resin is incompletely cured by exposure to actinic radiation, preferably in the absence of a coverfilm covering the photopolymerizable resin. A further layer of photopolymerizable resin is then cast onto the incompletely cured resin, and the whole exposed to actinic radiation through an image-bearing transparency. A release composition may be placed between the image-bearing transparency and the photopolymerizable resin to provide for decreased adhesion therebetween. After development, an image-bearing laminate suitable as a printing plate for flexographic printing is obtained. The printing plate achieves excellent short and long term adhesion between the compressible layer and the photopolymer plate, without the necessity of a tie layer or adhesive therebetween.

5750315, May 12, 1998

Aug 13, 1996

8/669890

Joseph F. Rach - Newark DE

MacDermid Imaging Technology, Inc. - Waterbury CT

G03F 7095
G03F 716

430306

A compressible printing plate is prepared by casting liquid photopolymerizable resin directly onto a compressible material having open cells on its surface. The photopolymerizable resin is incompletely cured by exposure to actinic radiation, preferably in the absence of a coverfilm covering the photopolymerizable resin. A further layer of photopolymerizable resin is then cast onto the incompletely cured resin, and the whole exposed to actinic radiation through an image-bearing transparency. A release composition may be placed between the image-bearing transparency and the photopolymerizable resin to provide for decreased adhesion therebetween. After development, an image-bearing laminate suitable as a printing plate for flexographic printing is obtained. The printing plate achieves excellent short and long term adhesion between the compressible layer and the photopolymer plate, without the necessity of a tie layer or adhesive therebetween.

5753414, May 19, 1998

Oct 2, 1995

8/537567

Joseph F. Rach - Newark DE
Albert Roshelli - Wilmington DE

MacDermid Imaging Technology, Inc. - Waterbury CT

G03F 740
G03F 711

430309

A printing plate laminate is formed of a carrier sheet, sticky back, a substrate and photopolymer layer. The substrate has a thickness of only about 0. 2 mil to about 3 mil. The printing plate laminate can be formed from a process wherein photopolymerizable resin is coated onto a bilayer substrate, where one layer of the substrate is in contact with the photopolymer layer and has a thickness of about 0. 2 mil to about 3 mil, and a second layer of the substrate has a thickness of about 4 mil to about 7 mil. A pressure sensitive adhesive lies between the first and second layers of the substrate, so that the second layer may be easily peeled away from the first layer after selectively curing and then developing the photopolymer layer.

5965460, Oct 12, 1999

Jan 29, 1997

8/790446

Joseph Rach - Newark DE
Douglas Leach - Hockessin DE

Mac Dermid, Incorporated - Waterbury CT

B24B 100

438692

Particular polyurethane photopolymers are disclosed as materials of construction in producing improved polishing pads. The polyurethane photopolymers are formed from a polyurethane prepolymer prepared from the reaction products of a first reactant selected from the group consisting of polyesters, polyethers, polybutadienes and mixtures of the foregoing with diisocyanates, further reacted with acrylates and/or methacrylates.