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1. WO2020095484 - ADHESIVE COMPOSITION AND SURFACE PROTECTIVE FILM

Publication Number WO/2020/095484
Publication Date 14.05.2020
International Application No. PCT/JP2019/029198
International Filing Date 25.07.2019
IPC
C09J 175/04 2006.01
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
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
04Polyurethanes
C09J 7/38 2018.01
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
  • DIC株式会社 DIC CORPORATION [JP]/[JP]
Inventors
  • 髭白 朋和 HIGESHIRO Tomokazu
  • 佐藤 浩司 SATO Koji
  • 小松崎 優紀 KOMATSUZAKI Yuki
Agents
  • 小川 眞治 OGAWA Shinji
Priority Data
2018-20891006.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ADHESIVE COMPOSITION AND SURFACE PROTECTIVE FILM
(FR) COMPOSITION ADHÉSIVE ET FILM DE PROTECTION DE SURFACE
(JA) 粘着剤組成物及び表面保護フィルム
Abstract
(EN)
The present invention addresses the problem of providing an adhesive which exhibits low possibility of contamination of an adherend after separation. An adhesive composition according to the present invention contains a urethane resin (A) having a hydroxyl group and a curing agent (B), while being configured such that: the urethane resin (A) is a reaction product of a polyol (a1) and a polyisocyanate (a2); and the polyisocyanate (a2) contains a polyisocyanate (a2-2) that has three or more isocyanate groups.
(FR)
La présente invention aborde le problème de la fourniture d'un adhésif qui présente une faible possibilité de contamination d'une partie adhérée après la séparation. Une composition adhésive selon la présente invention contient une résine uréthane (A) ayant un groupe hydroxyle et un agent de durcissement (B), tout en étant configurée de telle sorte que: la résine uréthane (A) est un produit de réaction d'un polyol (a1) et d'un polyisocyanate (a2); et le polyisocyanate (a2) contient un polyisocyanate (a2-2) qui a trois groupes isocyanate ou plus.
(JA)
本発明は、剥離後の被着体汚染性が良好な粘着剤を提供することを課題とする。本発明の粘着剤組成物は、水酸基を有するウレタン樹脂(A)及び硬化剤(B)を含み、前記ウレタン樹脂(A)が、ポリオール(a1)及びポリイソシアネート(a2)の反応物であり、前記ポリイソシアネート(a2)が、イソシアネート基を3個以上有するポリイソシアネート(a2-2)を含むものである粘着剤組成物。
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