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:
Aug. 17, 1982
Filed:
Jun. 01, 1981
Applicant:
Inventors:
Jack C Cowan, Lafayette, LA (US);
Tommy Thrash, Littlefield, TX (US);
Assignee:
Venture Chemicals, Inc., Lafayette, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 48 ; 521 40 ;
Abstract
A method of recovering useful polyester fibers and cellulosic material from textile wastes containing blended polyester/cellulosic fibers wherein the textile waste is treated with anhydrous hydrochloric acid gas under reaction conditions sufficient to degrade the cellulosic material, the treated waste is mechanically degraded to convert the reacted cellulosic material to a fine powder, and thereafter the cellulosic material is separated from the polyester fibers.