Method for recovering uncrosslinked synthetic resin waste

Details Method for recovering uncrosslinked synthetic resin waste Method for recovering uncrosslinked synthetic resin waste

1995-08-22

1997-05-20

Spear, Frank

Liquid purification or separation

Processes

Separating

210192, 210251, B01D 1104

Patent

active

056309457

ABSTRACT:
A method for recovering an uncrosslinked synthetic resin waste including dissolving the uncrosslinked synthetic resin waste in a solvent containing, as an active ingredient, one or more oxyisobutyric acid esters selected from an alkyl .alpha.-alkoxyisobutyrate, an alkyl .beta.-alkoxyisobutyrate and an alkyl .alpha.-hydroxyisobutyrate. This invention provides a method for recovering a plastic waste by using a highly safe solvent which is free from the problems encountered in the conventional methods with the use of aromatic hydrocarbons or halogenated hydrocarbons, and comprises non-halogen solvents, forms no substance causing environmental problems, has a high ability to dissolve plastic wastes, has neither toxicity nor any offensive odor, is not accumulated in nature because of its high biodegradability, and has a relatively high boiling point.

REFERENCES:
patent: 5409737 (1995-04-01), Kozak et al.

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