Photohardenable epoxy composition

USRE39106E1 · kind E1 · reissue

Assignee

• DSM IP ASSETS B.V. · NL

Inventors

• John A. Lawton · Landenberg, US
• William J. Nebe · Wilmington, US
• Glen Thommes · Wilmington, US
• Jonathan V. Caspar · Wilmington, US

Key dates

• Filing date: Jan 11, 2000
• Grant date: May 23, 2006
• Expiry date: Jan 11, 2020

Classification

• Technology area (CPC —): General

Abstract

A photohardenable composition especially suitable for use in solid imaging. The compositions are characterized by their improved photospeed in combined with excellent initial green strength. The compositions allows for the production of articles by solid imaging processing techniques that show little or no distortion, high accuracy, excellent clarity. The compositions are low in toxicity and have low sensitivity to water.