Dental floss of ultra-high modulus line material with enhanced m

Details Dental floss of ultra-high modulus line material with enhanced m Dental floss of ultra-high modulus line material with enhanced m

1995-02-23

1996-01-02

O'Connor, Cary E.

Toilet

Toothpick

A61C 1500

Patent

active

054799520

ABSTRACT:
A method of producing high modulus and high strength products of polyethylene and other thermoplastic polymers by swelling with a suitable solvent a melt crystallized, or compacted powder morphology to form a pseudo-gel, drying the pseudo-gel, compressing it, and drawing it. The optimum process involves swelling the initial morphology in the form of a tape/ribbon/rod/monofilament/sheet/tube in a non-volatile solvent at temperatures near the polymer crystalline melting point, cooling the morphology under controlled conditions, lightly compressing it to remove the non-volatile solvent, extracting the non-volatile solvent by volatile solvent, removing the volatile solvent by evaporation or vacuum, compressing the morphology between rolls, and then stretching it at temperatures below the crystalline melting point of the polymer to obtain tapes, ribbons, monofilaments, sheets or tubes with improved mechanical properties. Products from the method include improved dental floss, fishing line and numerous other applications.

REFERENCES:
patent: 3800812 (1974-04-01), Jaffe
patent: 3943949 (1976-03-01), Ashton et al.
patent: 4033365 (1977-07-01), Klepak et al.
patent: 5033488 (1991-07-01), Curtis et al.
patent: 5113880 (1992-05-01), Honda et al.
patent: 5220932 (1993-06-01), Blass
patent: 5279314 (1994-01-01), Poulos et al.

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