Biodegradable plastics and composites from wood

Chemistry: natural resins or derivatives; peptides or proteins; – Lignins or derivatives – Processes utilizing an organic solvent or a compound having...

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Details

525 541, 525 5424, 525 63, 525542, C07G 100, C08L 9700

Patent

active

060137746

ABSTRACT:
In this disclosure, there are provided materials which completely degrade in the environment far more rapidly than pure synthetic plastics but which possesses the desirable properties of a thermoplastic: strength, impact resistance, stability to aqueous acid or base, and deformation at higher temperatures. There is provided a method for using the degradable plastic materials in preparing strong, moldable solids. There is further provided a method of making and applications for macromolecular, surface active agents that change the wetting behavior of lignin-containing materials. These surface active agents are used to provide a method of making and applications for synthetic polymers coupled to pieces of a vascular plant using macromolecular surface active agents.

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R. Narayan, Sci. & Eng. of Compositing, Renaissance Pub., OH 1993, pp. 339-362.

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