ADHESIVE COMPOSITION AND ADHESIVE SHEET

• Main Authors: KAWANISHI DAISUKE, FUJII SHOKI, NIWA MICHIHITO
• Format: Patent
• Language: English; Japanese
• Published: 02.08.2023
• Subjects: 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

To provide an adhesive composition that readily forms a thin, good quality polyester adhesive in a composition that contains a polyester polymer and a crosslinking agent and also contains as least a prescribed amount of a tackifying resin.SOLUTION: Provided is an adhesive composition containing a polyester polymer, a tackifying resin, and a crosslinking agent. The tackifying resin content is 20 pts.wt. or greater per 100 pts.wt. of the polyester polymer. The weight-average molecular weight of the polyester polymer is 110,000 or greater.SELECTED DRAWING: Figure 1 【課題】ポリエステル系ポリマーおよび架橋剤を含み、粘着付与樹脂を所定量以上含む組成において、良好な品質を有する薄厚のポリエステル系粘着剤を形成しやすい粘着剤組成物を提供すること。【解決手段】ポリエステル系ポリマー、粘着付与樹脂および架橋剤を含む粘着剤組成物が提供される。粘着付与樹脂の含有量は、ポリエステル系ポリマー１００重量部に対して２０重量部以上である。ポリエステル系ポリマーの重量平均分子量は１１０，０００以上である。【選択図】図１