Optical adhesive sheet containing a base polymer having a first glass transition temperature and an oligomer having a second glass transition temperature higher than the first glass transition temperature
This invention provides an optical adhesive sheet suitable for use in flexible devices. An adhesive sheet 10 (optical adhesive sheet) of this invention contains a base polymer having a first glass transition temperature and an oligomer having a second glass transition temperature higher than the fir...
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| creator | MIURA, TAISEI UTSUMI, YUYA FUJITA, MASAKUNI |
| description | This invention provides an optical adhesive sheet suitable for use in flexible devices. An adhesive sheet 10 (optical adhesive sheet) of this invention contains a base polymer having a first glass transition temperature and an oligomer having a second glass transition temperature higher than the first glass transition temperature, and has an adhesive surface 11 and an adhesive surface 12. A component analysis in the thickness direction H from the adhesive surface 12 side to the adhesive surface 11 side is performed by TOF-SIMS method for the adhesive sheet 10 in a state in which a substrate S is adhered to the adhesive surface 11. A detection maximum peak of an ion strength of a first fragment derived from the oligomer is detected between a detection start time of a second fragment derived from the substrate and a detection end time of a third fragment derived from the base polymer after the detection start time. A ratio of the ion strength of the detection maximum peak to the average value of the ion strengt |
| format | Patent |
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An adhesive sheet 10 (optical adhesive sheet) of this invention contains a base polymer having a first glass transition temperature and an oligomer having a second glass transition temperature higher than the first glass transition temperature, and has an adhesive surface 11 and an adhesive surface 12. A component analysis in the thickness direction H from the adhesive surface 12 side to the adhesive surface 11 side is performed by TOF-SIMS method for the adhesive sheet 10 in a state in which a substrate S is adhered to the adhesive surface 11. A detection maximum peak of an ion strength of a first fragment derived from the oligomer is detected between a detection start time of a second fragment derived from the substrate and a detection end time of a third fragment derived from the base polymer after the detection start time. 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An adhesive sheet 10 (optical adhesive sheet) of this invention contains a base polymer having a first glass transition temperature and an oligomer having a second glass transition temperature higher than the first glass transition temperature, and has an adhesive surface 11 and an adhesive surface 12. A component analysis in the thickness direction H from the adhesive surface 12 side to the adhesive surface 11 side is performed by TOF-SIMS method for the adhesive sheet 10 in a state in which a substrate S is adhered to the adhesive surface 11. A detection maximum peak of an ion strength of a first fragment derived from the oligomer is detected between a detection start time of a second fragment derived from the substrate and a detection end time of a third fragment derived from the base polymer after the detection start time. 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| language | chi ; eng |
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| subjects | ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES |
| title | Optical adhesive sheet containing a base polymer having a first glass transition temperature and an oligomer having a second glass transition temperature higher than the first glass transition temperature |
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