THERMOSETTING COMPOSITION, MOLDED ARTICLE MANUFACTURING METHOD USING SAME, AND CURED PRODUCT

• Main Authors: OKADA, Yasunari, TAKEBE, Tomoaki, OBATA, Yutaka
• Format: Patent
• Language: English; French; Japanese
• Published: 01.04.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

This thermosetting composition contains the following components (A) and (B), and has a viscosity of 0.1-100 Pa·s at a shearing speed of 10 s-1 at 25ºC, as measured on the basis of JIS K 7117-2.　The component (A) is polybutadiene having a structural unit represented by formula (1A) and a structural unit represented by formula (1B) and having a terminal group which includes a methacryloyl group or an acryloyl group, and the component (B) is a thermal polymerization initiator. Selon la présente invention, cette composition thermodurcissable contient les constituants (A) et (B) suivants, et a une viscosité comprise entre 0,1 et 100 Pa.s à une vitesse de cisaillement de 10 s-1 à 25 °C, telle que mesurée sur la base de la norme JIS K 7117-2.　Le constituant (A) est un polybutadiène ayant un motif structural représenté par la formule (1A) et un motif structural représenté par la formule (1B) et ayant un groupe terminal qui comprend un groupe méthacryloyle ou un groupe acryloyle, et le constituant (B) est un initiateur de polymérisation thermique. 下記成分（Ａ）及び成分（Ｂ）を含み、ＪＩＳ　Ｋ７１１７－２に基づき測定した、２５℃で１０ｓ－１のせん断速度での粘度が０．１Ｐａ・ｓ以上１００Ｐａ・ｓ以下である熱硬化性組成物。　（Ａ）下記式（１Ａ）で表される構造単位及び下記式（１Ｂ）で表される構造単位を有し、末端基がメタクリロイル基又はアクリロイル基を含むポリブタジエン　（Ｂ）熱重合開始剤