HEAT CONFORMABLE CURABLE ADHESIVE FILMS

• Main Authors: BRANIGAN MARGOT A, SHERMAN AUDREY A, KLUN THOMAS P, PALAZZOTTO MICHAEL C, CAMPBELL CHRISTOPHER J, SCHAFFER KEVIN R, LIU LAN H, KIESCHKE ROBERT R, MAHONEY WAYNE S
• Format: Patent
• Language: English; Korean
• Published: 08.05.2017
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; GENERAL PROCESSES OF COMPOUNDING; 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; WORKING-UP

고화 전에 열 정합가능한 광학적으로 투명한 경화성 접착제 필름은 반응성 조성물을 포함한다. 경화성 필름은 가요성의 자립형이고, 고화 전에 복소 점도가 25℃에서 100,000 푸아즈(10,000 Pa·s) 초과이고 85℃에서 100 푸아즈(10 Pa·s) 미만이다. 고화된 필름은 접착제 전단 강도가 전단 접착력 시험 방법에 따라 측정할 경우 유리 기재에 대해 100 뉴튼/제곱센티미터 (N/㎠) 초과이다. 반응성 조성물은 말단 폴리올-반응성 기 및 말단 에틸렌계 불포화 기를 갖는 화합물과 포화 비정질 코-폴리에스테르 폴리올의 반응 생성물인 에틸렌계 불포화 폴리에스테르-함유 올리고머성 조성물; (메트)아크릴레이트 작용성 물질; 및 적어도 하나의 개시제를 포함한다. Optically clear curable adhesive films that are heat conformable prior to setting include a reactive composition. The curable films are flexible and free-standing, and have a complex viscosity of greater than 100,000 poise (10,000 Pascal seconds) at 25° C. and less than 100 poise (10 Pascal seconds) at 85° C., prior to setting. The set film has an adhesive shear strength of greater than 100 Newtons per square centimeter (N/cm2) to a glass substrate when measured according to the Shear Adhesion Test Method. The reactive composition includes an ethylenically unsaturated polyester-containing oligomeric composition that is the reaction product of a saturated, amorphous co-polyester polyol and a compound with a terminal polyol-reactive group and a terminal ethylenically unsaturated group, a (meth)acrylate functional material, and at least one initiator.