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. 16, 1977
Filed:
Apr. 01, 1975
Klane F Forsgren, Yardley, PA (US);
Sidney Melamed, Elkins Park, PA (US);
Robert S Weiner, Marietta, GA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
Process for the production of a crimped metal-coated continuous-filament or a crimped yarn of a plurality of metal-coated filaments which filament or yarn is adapted for combination with other filaments to form an improved yarn for use in making anti-static fabrics, such as pile carpets or the like, wherein the continuous-filament or yarn comprising a plurality of filaments is first made into a knitted fabric, the fabric is treated to deposit a continuous metal coating on the filament or yarn thereof, and the coated fabric thus obtained is deknitted, thereby yielding the metal-coated continuous-filament or yarn in a crimped disposition characteristic of the knitted loop construction existing in the knit fabric. Heat treatment of the crimped filament or yarn after the metal-coating step significantly improves its anti-static properties when incorporated into fabric.