Abstract:
PROBLEM TO BE SOLVED: To provide: an addition-cure-type silicone composition which provides a cured material having a high refractive index, high transparency and high temperature cycle resistance; a sealing material for optical elements; and an optical element sealed with the sealing material for optical elements.SOLUTION: The present invention provides an addition-cure-type silicone composition characterized by comprising: A) a three-dimensional net-shaped organopolysiloxane which has at least one alkenyl group and at least one aryl group per molecule, also has siloxane units represented by general formulas RSiO and SiO(where R represents an organic group) and does not have a unit represented by general formula RSiO; B) a linear organopolysiloxane which has at least two alkenyl groups and at least one aryl group per molecule; C) an organosilicon compound which has hydrogen atoms bound to at least two silicon atoms per molecule and does not have an alkenyl group; and D) a hydrosilylation catalyst containing a platinum-group metal.
Abstract:
PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition having both of transparency and gas barrier property. SOLUTION: There is provided a transparent article including a continuous polyester matrix having at least one incompatible filler 14 dispersed therein, preferably a gas barrier reinforcing filler. The incompatible filler provides domains in the polyester matrix, and each domain has a particular dimension to provide a range of dimensions for the domains in the article. To create haze, the sizes are within the range of from about 380 nm to about 720 nm. Once the range of dimensions is determined, the light absorbent composition absorbs light at a range of wavelengths that at least substantially covers the range of amplitude of the domains. There are also provided, according to the above process, a method for producing the article having substantially masked haze of the article, and a method for masking the haze. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a transparent resin molded body provided with an excellent reflow heat-resistance and optical characteristic, and to further provide an optical lens and an optical film comprising the transparent resin molded body and excellent in heat-resistance and optical characteristic. SOLUTION: The resin molded body is obtained by molding a molding material containing a thermoplastic resin and crosslinking the thermoplastic resin. The thermoplastic resin is selected from a resin in which average transmittance in a range of 600-1,000 nm in a molded body having a thickness of 2 mm becomes 60% or higher. The resin molded body is characterized in that average transmittance in a range of 600-1,000 nm when it is heated at 200°C for 10 minutes and the thickness is made to 2 mm is 60% or higher. The optical lens and the optical film are formed by the transparent resin molded body. COPYRIGHT: (C)2008,JPO&INPIT