Patent application number | Description | Published |
20120138876 | CHROMENE COMPOUND - A chromene compound represented by the following formula (1): | 06-07-2012 |
20120228567 | URETHANE (METH) ACRYLATE MONOMER AND PRODUCTION PROCESS THEREOF - A process of producing a urethane (meth)acrylate monomer having a low acid value and a low content of a hardly soluble high-molecular weight impurity which is crosslinked high-dimensionally, comprising the steps of:
| 09-13-2012 |
20140030529 | CHROMENE COMPOUND - A chromene compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability and a photochromic curable composition comprising the chromene compound and polymerizable monomers. | 01-30-2014 |
20140034884 | CHROMENE COMPOUND - A chromene compound which develops a color of a neutral tint and has little initial coloration, high double peak characteristic and high color development sensitivity, rarely experiences the reduction of color optical density though it has high fading speed, is excellent in the durability of photochromic properties and can dissolve in a monomer composition which will become a substrate for optical articles in a high concentration, and a photochromic curable composition comprising the chromene compound and polymerizable monomers. | 02-06-2014 |
20140054520 | CHROMENE COMPOUND - A novel photochromic compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability. | 02-27-2014 |
20140146285 | PHOTOCHROMIC CURABLE COMPOSITION - A photochromic curable composition comprising, | 05-29-2014 |
20140154527 | CHROMENE COMPOUND - A chromene compound having a short fading half period, especially, a short fading half period even at a low temperature in a general-purpose polymer solid matrix. | 06-05-2014 |
20150030866 | PHOTOCHROMIC CURABLE COMPOSITION - A photochromic curable composition containing, as a radically polymerizable monomer component (A), a (meth)acrylic-amide polymerizable monomer (A1) having 2 to 6 (meth)acryloyloxy groups and 2 to 6 divalent amide groups (—NHCO—), and a non-amide polymerizable monomer (A2) having at least 3 radically polymerizable groups but having no amide bond. From the photochromic composition, there can be obtained a photochromic cured body having excellent photochromic properties such as a high color density, a high fading rate, and excellent mechanical strength. | 01-29-2015 |
20150034887 | CHROMENE COMPOUND - A novel photochromic compound which develops a color of a neutral tint (double peak characteristic) and has high color optical density, high fading speed and excellent durability. | 02-05-2015 |