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:
Jun. 13, 1995
Filed:
Apr. 11, 1994
Larry E Ballard, Columbia, SC (US);
Michelle Diaz-Kotti, Columbia, SC (US);
Robert A Keller, Columbia, SC (US);
Shakespeare Company, Columbia, SC (US);
Abstract
A monofilament which exhibits improved hydrolytic stability properties as compared to conventional polyester monofilaments is formed from the extrusion of a blend of PPS and at least one polymer selected from the group consisting of PET, a high temperature polyester resin and polyphenylene oxide and possibly, a hydrolytic stabilizing agent. The monofilament is produced without the inclusion of compatibilizers or fillers, even though PPS is known to be incompatible with PET and high temperature polyester resins in most applications. A fabric may be produced having increased resistance to hydrolytic degradation and includes a plurality of woven monofilaments, comprising a blend of PPS with at least one other polymer selected from the group consisting of PET, a high temperature polyester resin and polyphenylene oxide and, a hydrolytic stabilizing agent. Such fabrics have utility as fabrics for the dryer sections of paper machines. Methods for the production of such monofilaments are also provided.