METHOD FOR PRODUCING (METH)ACRYLATE

• Main Authors: HASHIMOTO NAOKI, OTSUKA MOTOO, INADA KAZUMASA
• Format: Patent
• Language: English; Japanese
• Published: 06.08.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a production method capable of obtaining a high-quality (meth)acrylate-based oligomer having a high molecular weight and little coloring and preferably to provide a production method capable of obtaining a polycarbonate di(meth)acrylate and a polyester di(meth)acrylate.SOLUTION: There is provided a production method of a mixture (A) of a compound having two or more (meth)acryloyl groups by an ester exchange reaction of a polyol having a number average molecular weight of 500 to 10000 and a compound having one (meth)acryloyl group in the presence of the following catalyst X and the following catalyst Y. Catalyst X: one or more compounds selected from the group consisting of a cyclic tertiary amine having an azabicyclo structure or a salt or complex thereof, an amidine or a salt or complex thereof and a compound having a pyridine ring or a salt or complex thereof, a phosphine or a salt or complex thereof. Catalyst Y: a compound containing zinc.SELECTED DRAWING: None 【課題】高分子量で、かつ着色が少ない高品質の（メタ）アクリレート系オリゴマーを得ることができる製造方法、好ましくはポリカーボネートジ（メタ）アクリレート及びポリエステルジ（メタ）アクリレートを得ることができる製造方法の提供。【解決手段】下記触媒Ｘ及び下記触媒Ｙの存在下に、数平均分子量が５００〜１０，０００のポリオールと１個の（メタ）アクリロイル基を有する化合物をエステル交換反応させる、２個以上の（メタ）アクリロイル基を有する化合物の混合物（Ａ）の製造方法。触媒Ｘ：アザビシクロ構造を有する環状３級アミン又はその塩若しくは錯体、アミジン又はその塩若しくは錯体、ピリジン環を有する化合物又はその塩若しくは錯体、及びホスフィン又はその塩若しくは錯体からなる群から選ばれる１種以上の化合物。触媒Ｙ：亜鉛を含む化合物。【選択図】なし