Dsm N.v.

Dsm IP Assets B.v.

Christopher F Tronche

Chau T Ha

Chander P Chawla

Chandler P Chawla

The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness. The compositions include:

Coating compositions for plastic substrates

Optical disc, e.g., CD-R, DVD, DVD-R, comprising a polymer substrate and a radiation-cured coating provided by curing a radiation-curable coating composition having a pH greater than or equal to 3 and comprising at least one acrylate monomer, and advantageously diacrylate monomers and oligomers and monomers having acrylate functionalities of from 1 to at least 3, wherein the optical disc exhibits jitter of no greater than about 35 ns after being subjected to an environment having a temperature of at least 80&deg; C. and a relative humidity of at least 85% for a period of at least 96 hours.

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Schaumburg, IL, United States of America

Christopher F Tronche