The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 1976
Filed:
May. 14, 1974
Applicant:
Inventors:
Kozo Saitoh, Tokyo, JA;
Sumio Izumi, Kokubunji, JA;
Assignee:
Mitsui Mining & Smelting Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
C02B / ;
U.S. Cl.
CPC ...
210 44 ; 210 54 ;
Abstract
A method for separating vinyl chloride from a mixture of vinyl chloride with other non-plastic substances such as sand and soil, metals, glass or rubbers which comprises introducing gas bubbles into a dispersion of the vinyl chloride mixture in an aqueous liquid medium such as water or salt water and containing a flotation agent such as pine oil thereby to float the vinyl chloride and collect it.