ADHESIVE COMPOSITION AND ADHESVE SHEET

The present invention provides an adhesive composition comprising a nitrogen-type acrylic adhesive resin and a silicone type methacrylic adhesive resin, and an adhesive sheet using the same. According to the present invention, when the adhesive sheet is bonded to a non-alkali glass or a polyimide fi...

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Bibliographische Detailangaben
Hauptverfasser:	JAE DUCK JUNG, HYUN SEOK KO, SEONG GEA KIM
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	The present invention provides an adhesive composition comprising a nitrogen-type acrylic adhesive resin and a silicone type methacrylic adhesive resin, and an adhesive sheet using the same. According to the present invention, when the adhesive sheet is bonded to a non-alkali glass or a polyimide film, adhesive power after 20 minutes at 23℃ is 10 gf/25 mm or less, adhesive power after 2 weeks at 23℃ is 50 gf/25 mm or less, andadhesive power after 15 minutes under 5 atm at 50℃ is 400 gf/25 mm or more. Accordingly, the adhesive composition and the adhesive sheet have low initial adhesive power and low elapsed-time adhesive power to a non-alkali glass or a polyimide film but have very high heat and pressure adhesive power, and thus have excellent re-adhesive properties, position fixability, and reworkability and have high adhesion reliability. 본 발명에 따르면, 질소형 아크릴계 점착성 수지 및 실리콘형 메타크릴계 점착성 수지를 함유하는 점착 조성물 및 이를 사용한 점착 시트가 제공되며, 상기 점착 시트는 무알칼리 유리(non-alkali glass) 또는 폴리이미드 필름에 접합할 때, 23℃에서 20분 경과한 후의 점착력이 10 gf/25mm 이하이고, 23℃에서 2주 경과한 후의 점착력이 50 gf/25mm 이하이고, 50℃에서 5기압 하에 15분 경과한 후의 점착력이 400 gf/25mm 이상이다. 본 발명에 따른 점착 조성물 및 점착 시트는 무알칼리 유리(non-alkali glass) 또는 폴리이미드 필름에 대해 초기 점착력 및 경시 점착력이 낮지만 가열· 가압 점착력이 매우 높아서, 우수한 재부착성, 위치수정성 및 리워크성을 가지며 점착 신뢰성이 높다.