Compositions and methods for use in three dimensional model...

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive...

Reexamination Certificate

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C522S083000, C522S096000, C522S148000, C522S167000, C522S180000, C522S182000

Reexamination Certificate

active

07851122

ABSTRACT:
A radiation curing composition suitable for building a three-dimensional object by a solid freeform method is disclosed. The composition includes one or more mono-functional monomers where a respective polymer has a Glass Transition Temperature higher than about 60° C. and one or more di-functional oligomers where a respective polymer has a Glass Transition Temperature lower than about 40° C. The functional groups of the components may include meth(acrylic) and the composition has a viscosity of about 50-500 cps at ambient temperature. Further, the concentration of the mono-functional monomer may be at least 30% by weight and the concentration of the di-functional oligomer may be at least 20% by weight.

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