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US 5,798,202 AGranted
Laser engravable single-layer flexographic printing element
AssigneeE. I. DuPont de Nemours and Company
InventorsStephen Cushner, Roxy Ni Fan, Ernst Leberzammer, Paul Thomas Shea, Carol Marie Van Zoeren
Life of this patent
Estimating the term…
Abstract
A process for making a single layer flexographic printing plate which involves reinforcing and laser engraving a single layer flexographic printing element.
Claims6
A laser engravable, single-layer flexographic printing element which comprises:
- (a) a flexible support;
- and
- (b) a laser engravable, reinforced elastomeric layer wherein said layer has been singly reinforced mechanically or thermochemically or multiply reinforced mechanically and photochemically, mechanically and thermochemically, or photochemically and thermochemically, or mechanically, photochemically and thermochemically provided that thermochemical reinforcement is accomplished using a crosslinker other than sulfur, a sulfur containing moiety, or peroxide;
- said elastomeric layer being at least 0.05 cm thick and capable of being laser engraved to a depth of at least 0.005 cm after reinforcement.
1 more element
A laser engravable, single-layer flexographic printing element which comprises:
- (a) a flexible support;
- and
- (b) a laser engravable, reinforced elastomeric layer wherein said layer comprises at least one thermoplastic elastomer, said layer being singly reinforced mechanically or thermochemically or multiply reinforced mechanically and photochemically, mechanically and thermochemically, photochemically and thermochemically or mechanically, photochemically and thermochemically, said elastomeric layer being at least 0.05 cm thick and capable of being laser engraved to a depth of at least 0.005 cm after reinforcement.
Dependencies are inferred from the claim text.