METHOD FOR DEODORIZING USED FOAM MOLDING PARTICULARLY FISH CRATE

Title:

METHOD FOR DEODORIZING USED FOAM MOLDING PARTICULARLY FISH CRATE

Document Type and Number:

Japanese Patent JPH06322174

Kind Code:

A

Abstract:

PURPOSE: To clean and deodorize used foam moldings, especially fish crates by a simple process to obtain non-contaminated foam moldings with white appearances by treating them with an aqueous solution of phosphoric acid or a water-soluble primary or secondary phosphate.

CONSTITUTION: Used foam moldings, desirably foam moldings based on a styrene polymer or a polyolefin, are treated with an aqueous solution of phosphoric acid, a water-soluble primary or secondary phosphate or a mixture thereof or treated with steam. It is desirable that the foam moldings are treated with the aqueous solution and the treated with water. It is suitable that the concentration of phosphoric acid, a phosphate or a mixture thereof in the aqueous solution is 0.001-5 wt.%. For example, Na2HPO4 or the like can be used as the water-soluble primary or secondary phosphate.

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Inventors:

MIHIYAERU BUITSUTO
DEIITORITSUHI SHIERUTSUAA
KURAUSU HAAN
RORUFU HEN
BUORUFUUDEIITAA BATSUKU

Application Number:

JP2781594A

Publication Date:

November 22, 1994

Filing Date:

February 25, 1994

Export Citation:

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Assignee:

BASF AG

International Classes:

A61L9/01; C08J11/06; C08J11/16; C08J11/14; (IPC1-7): C08J11/14; C08J11/16

Attorney, Agent or Firm:

Tajiro Taiji

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