Shakespeare

Shakespeare Company. LLC

Robert A Keller

Larry E Ballard

Michelle A Diaz-Kotti

William L Price, Iii

Polymeric monofilaments having 3 to 12 circumferential striations exhibit excellent performance when used in woven papermaking belts.

Papermaking belts comprising striated monofilaments

Striated monofilaments useful in the formation of papermaking belts

Cable structures comprising at least three thermoplastic polymer filaments are prepared in a single extrusion process and exhibit performance characteristics comparable to cabled yarn constructions. The cables can be used in fabrics such as those used in paper manufacture.

Polymeric cable and fabric made therefrom

Polymeric cable

A spiral fabric comprising a plurality of coils having loops meshed together to form channels at points of overlap between adjacent loops, locking pins positioned in the channels to join adjacent coils to form a mesh, and the improvement wherein a cable structure of at least two thermoplastic filaments is used as at least one component of the fabric.

Spiral fabric

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.

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Columbia, SC, United States of America

Robert A Keller