ADDITIVE FOR A SILICONE ENCAPSULANT

• Main Authors: KLEYER DONALD L, SCHMIDT RANDALL G, NISHIDA FUMITO, TOMASIK ADAM C
• Format: Patent
• Language: English; Korean
• Published: 12.05.2016
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

실리콘 봉지재용 첨가제는 하기 구조 I을 갖는다: [구조 I](상기 식에서, a는 3 또는 4이고, R및 R는 각각 -O-Si(R)(R)(R)이고, 각각의 R, R및 R은 독립적으로 C-C하이드로카르빌 기들, C-C알킬 기들, C-C알케닐 기들, 및 C-C아릴 기들로부터 선택되고, R은 독립적으로 C-C하이드로카르빌 기들, C-C알킬 기들, C-C알케닐 기들, 및 C-C아릴 기들로부터 선택됨). 더욱 구체적으로, 상기 세륨은 세륨 (III) 또는 세륨 (IV)이다. 상기 첨가제는 세륨 금속 또는 세륨 (III) 또는 (IV) 화합물을 하이드록실 작용성 유기실록산과 반응시키는 단계를 포함하는 방법을 사용하여 형성된다. 봉지재는 상기 첨가제 및 폴리오르가노실록산을 포함한다. 상기 봉지재는, 광전자 구성요소와 상기 광전자 구성요소 상에 배치된 상기 봉지재를 포함하는 장치를 형성하는 데 이용될 수 있다. 상기 장치는, 상기 봉지재를 상기 광전자 장치 상에 배치하는 단계를 포함하는 방법을 사용하여 형성된다. The present invention relates to a curable silicone composition comprising: (A) an organopolysiloxane having at least two alkenyl groups and at least one aryl group in a molecule, (B) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule, (C) an organopolysiloxane having at least one aryl group in a molecule and containing a metal atom selected from the group consisting of V, Ta, Nb and Ce, and (D) a hydrosilylation-reaction catalyst. The present invention can provide the curable silicone composition, which does not develop a crack by thermal aging and further can form a cured material that exhibits less yellowing. Abstract (as published by WIPO) The present invention pertains to a curable silicone composition comprising at least: (A) an organo-polysiloxane having, per molecule thereof, two or more alkenyl groups and one or more aryl groups; (B) an organo-polysiloxane having, per molecule thereof, two or more silicon-bonded hydrogen atoms; (C) an organo-polysiloxane having, per molecule thereof, one or more aryl groups, and a metal atom selected from a group consisting of V, Ta, Nb and Ce; and (D) a hydrosilation reaction catalyst. The present invention is capable of providing a curable silicone composition capable of forming a cured product which exhibits minimal yellowing, without producing cracks caused by thermal aging.