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    • 7. 发明授权
    • Flexibilized phenol/mercapto resins and their synthesis
    • 柔性酚/巯基树脂及其合成
    • US4803245A
    • 1989-02-07
    • US27008
    • 1987-03-17
    • Laurence G. Dammann
    • Laurence G. Dammann
    • C08G18/18C08G18/40C08G18/42C08G18/46C08G18/48C08G18/50C08G18/58C08G18/06C08G59/12C08G63/08C08G63/46
    • C08G18/5072C08G18/1891C08G18/40C08G18/4208C08G18/4676C08G18/4879C08G18/581C08G18/585
    • Disclosed is a method for improving the flexibility of a phenol or mercapto resin wherein an aliphatic hydroxyl-functional polyol or polyepoxide component is partially capped with a phenol or mercapto capping agent followed by chain extension with a polyisocyanate under reaction conditions wherein said polyisocyanate substantially selectively reacts with aliphatic hydroxyl groups or epoxy groups residual from the prior step of the process. The ratio of components is such that a resin predominating in one or more of the following general structures is produced: ##STR1## where, R and R' each is a phenol functional group or a mercapto functional group,A and B each is an organic chain residue of said component containing functionality epoxy,Poly and Poly' each is an organic chain residue of said component containing aliphatic hydroxy functionality,X is an aliphatic hydroxyl group,the wavy line represents an organic chain residue of said polyisocyanate,n is 1-4,m and p each is 0-2, andq and s each is 1-15.
    • 公开了一种改善酚或巯基树脂的柔性的方法,其中脂肪族羟基官能多元醇或多环氧化物组分部分地被酚或巯基封端剂封端,随后在反应条件下用多异氰酸酯链延伸,其中所述多异氰酸酯基本上选择性地反应 其中脂肪族羟基或环氧基残留在该方法的前一步骤中。 组分的比例使得以下列通用结构中的一种或多种为主要成分的树脂产生:其中,R和(I) R'各自为酚官能团或巯基官能团,A和B各自为含有官能团环氧基的组分的有机链残基,Poly和Poly各自为含有脂族羟基官能团的组分的有机链残基,X为 脂族羟基,波浪线表示所述多异氰酸酯的有机链残基,n为1-4,m和p各自为0-2,q和s各自为1-15。