PHOTOCURING TRANSFER SHEET, METHOD FOR MANUFACTURING OPTICAL INFORMATION RECORDING MEDIUM USING THE SHEET, AND OPTICAL INFORMATION RECORDING MEDIUM

• Main Authors: KITANO, HIDEKI, MORIMURA, YASUHIRO, KOTSUBO, HIDEFUMI, MURAYAMA, KENJI, INAMIYA, TAKATO
• Format: Patent
• Language: English; French; Japanese
• Published: 29.06.2006
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTROGRAPHY; GENERAL PROCESSES OF COMPOUNDING; HOLOGRAPHY; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS THEREFOR; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PERFORMING OPERATIONS; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

A photocuring transfer sheet having a photocuring transfer layer made of a photocuring composition which contains a reactive polymer having a photopolymerizable functional group and is deformable when the sheet is pressed. The sheet is characterized in that when the sheet undergoes a creep test using a dynamic viscoelasticity measurement instrument, the relationship between the strain [?] (%) and the time [t] (second) is linear under the condition of normal temperature, 50-Pa stress, and 120-second time and satisfies the following formula. log ? = a + b·log t (where a is a real number and b ranges from 0.10 to 0.53.) A method for manufacturing an optical information recording medium and an optical information recording medium are also disclosed. L'invention concerne une feuille de transfert photopolymérisable possédant une couche de transfert photopolymérisable constituée d'une composition photopolymérisable contenant un polymère réactif possédant un groupe fonctionnel photopolymérisable et déformable lorsque la feuille est pressée. Cette feuille se caractérise en ce que, lorsqu'elle subit un essai de fluage au moyen d'un instrument de mesure de la viscoélasticité dynamique, la relation entre la contrainte [?](%) et la durée [t](seconde) est linéaire dans des conditions de température normale, avec une tension de 50-Pa et pendant 120 secondes, et correspond à la formule suivante: log? = a + b.log t (dans laquelle a représente un nombre réel et b est compris entre 0,10 et 0,53). Un procédé de fabrication d'un support d'enregistrement d'informations optique et un support d'enregistrement d'informations optique sont également décrits.