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:
Feb. 15, 1994
Filed:
Nov. 09, 1992
Tien-Kuei Su, Belle Mead, NJ (US);
Kenneth L Lilly, Jr, Farmington, NY (US);
Mobil Oil Corporation, Fairfax, VA (US);
Abstract
Recycling polyolefin material, e.g. biaxially oriented polypropylene film, coated with a chlorine-containing polymer, such as polyvinylidene chloride homopolymer and/or copolymer, and having a primer therebetween. First, a caustic solution is formulated containing from about 0.1 wt. % to about 50 wt. % caustic, and from about 0.05 wt. % to about 1.0 wt. % of a wetting agent. The formulated caustic solution is heated to a temperature from about 25.degree. C. to about 140.degree. C. The polyolefin material is soaked in the heated caustic solution until the material is separable from the chlorine-containing polymer. After separating the polyolefin material from the chlorine-containing polymer, the material is reprocessed into desired product by extrusion, molding or other product forming process.