Huntsman Advanced Materials Americas LLC

3d Systems, Inc.

Frank Tran

David L Johnson

John Wai Fong

Richard Noel Leyden

Ranjana Changanbhai Patel

Derek Scott Kincaid

Carole Chapelat

Laurence Messe

K P Subrahmanian

Surendar N Kaul

Kp Subrahmanian

Ranjana C Patel

David Johnson

The present disclosure relates to UV resistant multi-component structural adhesive systems that are substantially free of aromatic epoxy resins, Also provided are methods of preparing the multi-component structural adhesive systems and methods of bonding substrates together with such adhesive systems.

UV resistant epoxy structural adhesive

The present invention provides a clear, low viscosity photocurable composition including (i) a cationically curable compound (ii) an acrylate-containing compound (iii) a polyol-containing mixture (iv) a cationic photoinitiator and (v) a free radical photoinitiator. The photocurable composition can be cured using rapid prototyping techniques to form opaque-white three-dimensional articles having ABS-like properties.

Photocurable compositions for preparing ABS-like articles

A photocurable composition comprising: (a) a cationically curable component preferably formed from one or more epoxy compound(s), (b) an acrylate component having no or a low amount of hydroxy groups preferably dipentaerythritol hexaacrylate, (c) a polyol component, preferably a polyether polyol, (d) a cationic photoinitiator; and (e) a free radical photoinitiator. The composition may produce when cured three-dimensional articles with high clarity and improved mechanical properties.

Photocurable composition for producing cured articles having high clarity and improved mechanical properties

A photocurable composition comprising cationically curable compound, an acrylate-containing compound; a hydroxyl-containing compound; a cationic photoinitiator; and a free radical photoinitiator; wherein said composition has less than 0.54 equivalents of cationically curable groups, less than 0.10 equivalents of acrylate groups and less than 0.10 equivalents of hydroxyl 0groups per 100 grams of said composition.

Photocurable compositions for articles having stable tensile properties

A photocurable composition comprising cationically curable compound, an acrylate-containing compound; a hydroxyl-containing compound; a cationic photoinitiator; and a free radical photoinitiator; wherein said composition has less than 0.54 equivalents of cationically curable groups, less than 0.10 equivalents of acrylate groups and less than 0.10 equivalents of hydroxyl groups per 100 grams of said composition.

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The Woodlands, TX, United States of America

Frank Tran