重合体組成物、プラスチック光ファイバー、プラスチック光ファイバーケーブル及びプラスチック光ファイバーの製造方法

• Format: Patent
• Language: Japanese
• Published: 12.06.2008
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

構成単位として一般式（１）で示されるラクトン化合物の単位（Ａ）５〜１００質量％と（メタ）アクリル酸エステル単位（Ｂ）０〜９５質量％とを含み、前記ラクトン化合物の単位（Ａ）は一般式（２）で示される（Ｓ）体単位および一般式（３）で示される（Ｒ）体単位を質量比で７０／３０〜３０／７０の範囲で含み、かつ全光散乱損失が１００ｄＢ／ｋｍ以下である重合体組成物であり、耐熱性および透明性に優れる。 There is provided a polymer composition comprising 5 to 100% by mass of a unit (A) of a lactone compound represented by a general formula (1) and 0 to-95% by mass of a unit (B) of (meth)acrylate as constitutional units, wherein the unit (A) of a lactone compound comprises a unit of an (S) isomer represented by a general formula (2) and a unit of an (R) isomer represented by a general formula (3) at a mass ratio of from 70/30 to 30/70; and wherein the polymer composition has a total light scattering loss of not more than 100 dB/km. The polymer composition is excellent in heat resistance and transparency.