접착성 폴리오르가노실록산 조성물

• Main Authors: OTASHIRO KOKI, MIYATA KOJI, TAKANASHI MASANORI
• Format: Patent
• Language: Korean
• Published: 06.09.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

본 발명은, 탄성률이 낮고, 찢어지기 힘든 경화물을 제공하고, 접착성이 뛰어나고, 저점도인 접착성 폴리오르가노실록산 조성물로서, (A) 저점도의 알케닐기를 함유하는 직쇄상 폴리오르가노실록산을 포함하는, 알케닐기를 함유하는 직쇄상 폴리오르가노실록산；(B) 1분자당 적어도 3개의 알케닐기를 함유하는 폴리오르가노실록산；(C1) 규소 원자에 결합한 수소 원자를, 분자 중에 3개 이상 갖는 폴리오르가노하이드로젠실록산；및 (C2) 규소 원자에 결합한 수소 원자를, 분자쇄의 양 말단에만 각각 1개씩 포함하고, 또한 분자 중에 지방족 불포화 결합을 갖지 않는 직쇄상 폴리오르가노하이드로젠실록산；(D) 필러；(E) 백금족 금속 화합물；그리고 (F) 특정 접착 부여제 2종 이상을, 특정 조성으로 포함하는, 접착성 폴리오르가노실록산 조성물이다. The present invention relates to an adhesive polyorganosiloxane composition which has excellent adhesion and a low viscosity and gives cured products of low elastic modulus and resistant to tearing, said adhesive polyorganosiloxane composition comprising, at a specific composition ratio: (A) a linear polyorganosiloxane containing an alkenyl group including a low-viscosity linear polyorganosiloxane containing an alkenyl group; (B) a polyorganosiloxane containing at least three alkenyl groups in the molecule; (C1) a polyorganohydrogensiloxane having 3 or more hydrogen atoms bonded to a silicon atom in the molecule; (C2) a linear polyorganohydrogensiloxane having one hydrogen atom bonded to a silicon atom only at both terminals of the molecular chain, and having no aliphatic unsaturated bonds in the molecule; (D) a filler; (E) a platinum group metal compound; and (F) two or more kinds of specific adhesion imparting agent.