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:
Sep. 20, 1994
Filed:
Mar. 02, 1994
August K Meyer, Jonesborough, TN (US);
Johnny W Shadden, Kingsport, TN (US);
Candace M Stipe, Kingsport, TN (US);
Leron R Dean, Kingsport, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
This invention relates to a process for preparing copolyester fibers having reduced spinning defects. More particularly, the invention relates to fibers having improved quality prepared from blends of certain poly(ethylene terephthalate) compositions modified with 1,4-cyclohexanedimethanol by melt spinning to produce filaments with decreased spinning defects while maintaining the chemical resistance, abrasion resistance, electrical and mechanical properties normally associated with copolyesters. These polymer blends when heated provide a fiber-forming polymer melt/dope which has excellent flowability and produces high quality fiber when subjected to conventional melt spinning, drawing, texturing, etc. Staple fibers prepared from the polymer blends of the invention when made into high loft battings have excellent fiberfill performance properties, particularly resilience and compression recovery.