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Inventor: von Trebra; Robert J.
Address: Wheeling, IL
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5824448 |
Negative working diazo color proofing sheet with adhesive layer having reduced tackiness |
October 20, 1998 |
| This invention relates to color proofing, or more particularly to an improved photographic element and transfer method of color proofing wherein a colored image is prepared by successively producing images of different colors from distinct color separation films onto a single recepto |
| 5360688 |
Composite black and white substrate for color proofing films |
November 1, 1994 |
| A composite film article which is a flexible, heat resistant, polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of les |
| 5288570 |
Composite black and white substrate for color proofing films |
February 22, 1994 |
| A composite film article which is a flexible, heat resistant polymeric film material having a non-opaque, partially translucent white surface side, having a visible light opacity of from about 0.90 to about 0.99; and a non-opaque, black surface side having a visible light opacity of less |
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