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1. WO2022009913 - ADHESIVE COMPOSITION AND USE OF SAME

Publication Number WO/2022/009913
Publication Date 13.01.2022
International Application No. PCT/JP2021/025549
International Filing Date 07.07.2021
IPC
C09J 11/06 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
11Features of adhesives not provided for in group C09J9/76
02Non-macromolecular additives
06organic
C09J 153/00 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
153Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
C09J 7/38 2018.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
30characterised by the adhesive composition
38Pressure-sensitive adhesives
Applicants
  • 株式会社MORESCO MORESCO CORPORATION [JP]/[JP]
Inventors
  • 佃 英樹 TSUKUDA, Hideki
Agents
  • 特許業務法人HARAKENZO WORLD PATENT & TRADEMARK HARAKENZO WORLD PATENT & TRADEMARK
Priority Data
2020-11731107.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ADHESIVE COMPOSITION AND USE OF SAME
(FR) COMPOSITION ADHÉSIVE ET SON UTILISATION
(JA) 粘着剤組成物およびその利用
Abstract
(EN) The present invention provides a hot melt adhesive composition which has transparency and is suppressed, even after curing in a high temperature high humidity environment, in increase of adhesion, adhesive residue on an adherend and contamination of the adherend. The above are achieved by means of an adhesive composition which contains an acrylic block copolymer having a triblock structure and a fluorine-based surfactant, wherein: the triblock structure comprises a polymer block which has a glass transition temperature that is higher than 40°C and a polymer block which has a glass transition temperature that is lower than 20°C; the weight average molecular weight of the fluorine-based surfactant is 3,000 or more; and the (fluorine atom)/(carbon atom) ratio in the adhesive composition surface after being cured in a high temperature high humidity environment and subsequently separated from an adherend is 1.70 × 10-1 or more as determined by X-ray photoelectron spectroscopy.
(FR) La présente invention concerne une composition adhésive thermofusible qui a une transparence et est contenue, même après durcissement dans un environnement à haute température et humidité élevée, en augmentant l'adhérence, le résidu adhésif sur une partie adhérée et la contamination de la partie adhérée. Les objectifs ci-dessus sont obtenus au moyen d'une composition adhésive qui contient un copolymère séquencé acrylique ayant une structure à trois blocs et un tensioactif à base de fluor, la structure à trois blocs comprenant un bloc polymère qui a une température de transition vitreuse qui est supérieure à 40 °C et un bloc polymère qui a une température de transition vitreuse qui est inférieure à 20 °C ; la masse moléculaire moyenne en poids du tensioactif à base de fluor est de 3 000 ou plus ; et le rapport (atome de fluor)/(atome de carbone) dans la surface de la composition adhésive après avoir été durcie dans un environnement à haute température et humidité élevée, puis séparée d'une partie adhérée est de 1,70 × 10-1 ou plus telle que déterminée par spectroscopie photoélectronique à rayons X.
(JA) 透明性を有しつつ、高温高湿環境下での養生後も、粘着力の上昇、被着体への糊残りおよび被着体の汚染が低減されたホットメルト型粘着剤組成物を提供する。トリブロック構造を有するアクリルブロック共重合体と、フッ素系界面活性剤と、を含む粘着剤組成物であって、トリブロック構造は、40℃より高いガラス転移温度を有するポリマーブロックと、20℃より低いガラス転移温度を有するポリマーブロックを含み、前記フッ素系界面活性剤の重量平均分子量が3,000以上であり、X線光電子分光法により測定した、高温高湿環境下での養生後に被着体から剥離した粘着剤組成物表面のフッ素原子/炭素原子の割合が1.70×10-1以上である粘着剤組成物により、前記課題を解決する。
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