Abstract
The furfuryl alcohol and furan resins comprise a group of polymeric liquids derived from furfuryl alcohol or compounds containing the basic furan ring structure. As liquids they have viscosities ranging from approximately 100 to 300,000 cP. They can be resinified further by conventional acid catalysis and cured to provide infusible solid products having high hardness, flexural strength, and chemical resistance to most acids, alkalies, and solvents. They may also be converted to flexible solids by cross-linking with suitable catalyses such as polyfunctional amines [1] or by the use of modifying copolymers and controlled curing conditions [2,3].

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