The invention herein disclosed comprises the use of oxazolidines, nitroalcohols, nitroamines, aminonitroalcohols, imines, hexahydropyrimidines, nitrones, hydroxylamines, nitro-olefins and nitroacetals to serve as hardeners and/or as catalysts for curing phenolic resins. The hardeners and catalysts described in the invention can be applied in any application where phenolic resins are used, including but not limited to adhesives, molding, coatings, pultrusion, prepregs, electronics, composites, fire resistant, and flame-retardant end uses.
Verfahren zur Herstellung von Derivaten von Dimeren des Isoeugenols
申请人:PLC PHARMACEUTICAL LICENCES COMPANY LTD.
公开号:EP0011598A1
公开(公告)日:1980-05-28
Die teilweise neuen Verbindungen der Formeln
worin die Subsituenten R' bis R4 die in der Beschreibung angegebene Bedeutung haben, z.B. N-[5-(trans- 2,3 Dihydro-7-methoxy -3-methyl-5-(E)- propenylbenzofuran -2-yl)-2-hydroxy-3-methoyphenylmethyl] -N-(2-hydroxyäthyl) -N-methylamin, besitzen leberschützende Eigenschaften. Man stellt sie her, indem man Dehydro- . diisoeugenol oder Diisoeugenol mit einem Oxazolidin der Formel
One-component, moisture-curable polyurethane adhesives exhibit excellent handling strength before being fully cured, and excellent creep properties after curing. The adhesives include an isocyanate-terminated prepolymer made from polyols that include a crystalline polyester and hydroquinone bis (2-hydroxyethyl) ether, and a polyoxazolidine compound.