Patent application number | Description | Published |
20100104777 | OPTICAL FILM - It is an object of the present invention to provide an optical film which has reverse chromatic dispersibility that its retardation becomes smaller as the wavelength becomes shorter and a low photoelastic constant. | 04-29-2010 |
20110288261 | OPTICAL FILM - The object of this invention is to provide an optical film formed of a copolycarbonate having a desired chromatic dispersion and low photoelasticity and having excellent melt processability. | 11-24-2011 |
20120120356 | OPTICAL FILM - An optical film having a desired wavelength dispersion characteristic, a low photoelastic coefficient and a desired Nz coefficient. | 05-17-2012 |
20120123083 | POLYESTER CARBONATE COPOLYMER FOR OPTICAL LENS AND OPTICAL LENS - This invention is to provide a polyester carbonate copolymer suitable for an optical lens that has high refractivity and transparency and low birefringence and little optical strain, and optical lenses formed therefrom. | 05-17-2012 |
20130005939 | OPTICAL FILM - An optical film comprising a copolycarbonate composed of 25 to 90 mol % of unit (A) of the following formula, | 01-03-2013 |
20130253162 | POLYCARBONATE RESIN AND MOLDED ARTICLE THEREOF - A resin which has high heat resistance, high surface hardness and excellent moldability and is obtained from a biomass resource and a molded article thereof. | 09-26-2013 |
20140128567 | COPOLYCARBONATE AND TRANSPARENT MOLDED ARTICLE OBTAINED THEREFROM - A copolycarbonate which is derived from a renewable resource and excellent in heat resistance, flowability and transparency and prevented from undergoing a dimensional change by water absorption and coloring during molding as well as a transparent molded article obtained therefrom. | 05-08-2014 |
20140350208 | POLYCARBONATE RESIN - A polycarbonate resin which is excellent in heat resistance, boiling water resistance and surface hardness and has a low water absorption coefficient. | 11-27-2014 |
20150087804 | COPOLYCARBONATE - A copolycarbonate having a low water absorption coefficient and excellent heat resistance, low temperature characteristics and surface hardness. | 03-26-2015 |