Hewlett-packard Development Company, L.p.

Qianhan Yang

Zhang-Lin Zhou

Rodney David Stramel

Gregg A Lane

Printable compositions comprising a liquid carrier; and a radiation curable polyurethane dispersed in the liquid carrier are described, as well as methods of preparing the printable compositions and methods of printing using the printable compositions.

Printable compositions

The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, a styrene-containing diol, or combination thereof. The first capping unit can be a styrene-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.

Reactive polyurethane dispersions

The present disclosure is drawn to polymeric photoactive agent compositions. The polymeric photoactive agent composition can include a polymeric photoactive agent including a xanthone analog modified with a polyether chain connecting to the xanthone analog through an ether linkage. The polymeric photoactive agent can be present in a reaction product mixture with either i) a xanthone analog modified with a hydroxyl group, or ii) a carbonate base.

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San Diego, CA, United States of America

Qianhan Yang