Biodegradable plastics and composites from wood

Details Biodegradable plastics and composites from wood Biodegradable plastics and composites from wood

1995-03-08

1998-04-21

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From lignin, tannin, or derivative reactant

525542, 525 541, 525 5424, 524 9, 435911, 523128, 530507, C08H 502

Patent

active

057418756

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.

REFERENCES:
patent: 4891404 (1990-01-01), Narayan et al.
patent: 4891415 (1990-01-01), Lin et al.
patent: 4931527 (1990-06-01), Meister
patent: 4940764 (1990-07-01), Meister
patent: 4990270 (1991-02-01), Meister
patent: 5037931 (1991-08-01), Meister
USSN 07/789,360 filed Nov. 8, 1991.

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