ACTIVE ENERGY RAY-CURABLE RESIN COMPOSITION, ADHESIVE COMPOSITION AND ADHESIVE

• Main Author: KUSANO KAZUNAO
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2021
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

To provide an active energy ray-curable resin composition having adhesion to various members, especially good adhesive strength when formed into an adhesive by using a urethane(meth)acrylate-based compound obtained using a raw material derived from a plant.SOLUTION: There is provided an active energy ray-curable resin composition comprising a urethane (meth)acrylate-based compound (A) which is a reaction product of a polyol (a1), a polyvalent isocyanate (a2) and a hydroxyl group-containing (meth)acrylate (a3), wherein the polyol (a1) is a polyol derived from castor oil having an average functional group number of 2.5 or less and the polyvalent isocyanate (a2) is a polyvalent isocyanate (a2) having an isocyanate group bonded to a primary carbon atom and an isocyanate group bonded to a secondary carbon atom.SELECTED DRAWING: None 【課題】 植物由来の原料を用いてなるウレタン（メタ）アクリレート系化合物を用い、各種部材への密着性、とりわけ粘着剤とした際に良好な粘着力を有する活性エネルギー線硬化性樹脂組成物を提供すること。【解決手段】ポリオール（ａ１）、多価イソシアネート（ａ２）及び水酸基含有（メタ）アクリレート（ａ３）の反応生成物であるウレタン（メタ）アクリレート系化合物（Ａ）を含有する活性エネルギー線硬化性樹脂組成物であって、ポリオール（ａ１）が、平均官能基数２．５以下のひまし油由来のポリオールであり、多価イソシアネート（ａ２）が、１級炭素に結合したイソシアネート基と２級炭素に結合したイソシアネート基を有する多価イソシアネートであることを特徴とする活性エネルギー線硬化性樹脂組成物。【選択図】なし