The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2013
Filed:
Apr. 07, 2009
Ko Hermans, Eindhoven, NL;
Itsuro Tomatsu, Leiden, NL;
Rintje Pieter Sijbesma, Eindhoven, NL;
Cornelis Wilhelmus Maria Bastiaansen, Eindhoven, NL;
Jan Dirk Broer, Eindhoven, NL;
Ko Hermans, Eindhoven, NL;
Itsuro Tomatsu, Leiden, NL;
Rintje Pieter Sijbesma, Eindhoven, NL;
Cornelis Wilhelmus Maria Bastiaansen, Eindhoven, NL;
Jan Dirk Broer, Eindhoven, NL;
Stichting Dutch Polymer Institute, Eindhoven, NL;
Abstract
The invention relates to a photo-embossing process for the preparation of a polymeric relief structure comprising the steps of: a) coating a substrate with a coating composition comprising one or more radiation-sensitive ingredients and less than 30 wt % polymeric binder material; b) locally treating the coated substrate with electromagnetic radiation having a periodic, non-periodic or random radiation-intensity pattern, forming a latent image, at a temperature below a transition temperature of the coating composition; and c) polymerizing and/or crosslinking the resulting coated substrate, at a temperature above said transition temperature, wherein the transition temperature is a temperature that defines a transition of the coating composition between a state of high viscosity and low viscosity and wherein the coating composition comprises a compound A comprising at least one radiation curable group and a photoinitiator, the coating composition having a transition temperature between 30° C. and 120° C.