摘要:
PROBLEM TO BE SOLVED: To provide a laminate molding member having good appearance which is excellent in abrasion resistance and surface hardness, and to provide a polycarbonate useful as a raw material.SOLUTION: The polycarbonate is obtained by reacting a compound expressed by one or more sorts of general formulas (A) and a compound expressed by one or more sorts of general formulas (B) with a carbonate-forming compound. The polycarbonate has a glass transition temperature (Tg) of 130-160°C. In the general formulas (B), Rand Rare not a methyl group.
摘要:
[Problem to be solved] The present invention provides a laminated body for optical purposes that includes a melanin-containing layer and an optical product that includes the laminate. In particular, the invention provides a laminated body which includes a melanin-containing layer, and an optical product which includes the laminate, of which the melanin concentration is high. They are excellent in the capacity to protect eyes from ultraviolet rays. [Means to solve the problem] The laminated body of the present invention is one comprising a melanin-including layer, wherein said melanin layer is formed by curing a composition that comprises at least a melanin, a polymerizable monomer, and a urethane-derived composition. The composition for the laminated body of the present invention is used for producing the laminated body. The composition comprises at least a melanin, a polymerizable monomer, and a urethane-derived composition. The optical product of the present invention is formed while including the above laminated body.
摘要:
PROBLEM TO BE SOLVED: To provide a light-transmissive electromagnetic wave shield material having a curved face for a display having a polarizing plate or a retardation plate or for an in-vehicle panel, in particular, a light-transmissive electromagnetic wave shield material having good visibility and generating no intense interference fringes of light even when the material is observed through sunglasses, goggles an antidazzle panel or an antidazzle window material having polarization characteristics. SOLUTION: The light-transmissive electromagnetic wave shield material having a curved face excellent in mitigating property on interference fringes of light is obtained by using a high-stretch light-transmissive organic polymer material having a given retardation value or more for the base substrate of an electromagnetic wave shield layer. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a plastic lens which does not require complicated manufacturing steps, is substantially free from an optical strain and does not cause fault in appearance such as a rainbow pattern. SOLUTION: The plastic lens comprises: (I) a sheet-like light-regulating layer formed by laminating a transparent sheet comprising a polycarbonate resin (A) and a light-regulator having a light-polarizing and/or light-modulating function on each other, wherein the polycarbonate resin (A) is produced by bonding 95 to 5 mol% of dihydroxy compound expressed by general formula (1) to 5 to 95 mol% of dihydroxy compound expressed by general formula (2): HOCH 2 -Y-CH 2 OH through a carbonate bonding by using diester carbonate; and (II) a polymerizable resin layer for the lens. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a polycarbonate resin molded article for laser marking which is suppressed in the color change of a base material resin and can be produced at a low cost. SOLUTION: The polycarbonate resin molded article for the laser marking comprises carbon black and is regulated so that the thickness t (mm) and the amount c (ppm) of the added carbon black may satisfy the formula (1):-0.02t+0.06≤c≤-14t+33 (1). COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译:解决的问题:提供抑制基材树脂的颜色变化的激光标记用聚碳酸酯树脂成形体,能够低成本地制造。 解决方案:用于激光打标的聚碳酸酯树脂模塑制品包括炭黑并被调节,使得添加的炭黑的厚度t(mm)和量c(ppm)可满足公式(1):-0.02 t +0.06≤c≤-14t + 33(1)。 版权所有(C)2009,JPO&INPIT