POLYURETHANE STRUCTURAL ADHESIVE

• Main Authors: YAMAMOTO, Naomi, CHIKAMOTO, Takuya, MORITA, Hirofumi
• Format: Patent
• Language: English; French; Japanese
• Published: 06.05.2021
• 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

This polyurethane structural adhesive contains: a polyisocyanate component that includes a urethane prepolymer having isocyanate groups at the molecular terminals, and that includes a xylylene diisocyanate derivative; and a polyol component that includes a macropolyol having a number-average molecular weight of 500 to 10,000 and 1.9 to 4.0 hydroxyl groups on average. Cet adhésif structural à base de polyuréthane contient : un composant polyisocyanate qui comprend un prépolymère d'uréthane ayant des groupes isocyanates au niveau des terminaux moléculaires, et qui comprend un dérivé de diisocyanate de xylylène ; et un composant polyol qui comprend un macropolyol ayant un poids moléculaire moyen en nombre de 500 à 10000 et 1,9 à 4,0 groupes hydroxyles en moyenne. 構造用ポリウレタン接着剤は、分子末端にイソシアネート基を有するウレタンプレポリマー、および、キシリレンジイソシアネートの誘導体を含むポリイソシアネート成分と、数平均分子量５００以上１００００以下、平均水酸基数１．９以上４．０以下のマクロポリオールを含むポリオール成分とを含有する。