Thermal treatment of theraplastic filaments for the preparation

Details Thermal treatment of theraplastic filaments for the preparation Thermal treatment of theraplastic filaments for the preparation

1993-05-12

1994-03-15

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642105, 2642107, 2642108, 26421115, 26421117, 264235, 264342RE, D01D 508, D01D 1002

Patent

active

052943950

ABSTRACT:
Thermoplastic monofilament sutures having improved flexibility and handling characteristics are obtained by a melt spinning process which includes the step of drawing the filaments in a heated zone maintained at a temperature above the melting temperature of the filament. The resulting monofilament sutures have a higher elongation and lower modulus than comparable monofilament sutures obtained without the heated drawing step, and are characterized by a crystalline structure which is more highly ordered in the core of the monofilament suture than in a surrounding annular area.

REFERENCES:
patent: 2346208 (1944-04-01), Conaway et al.
patent: 3217074 (1965-11-01), Gould et al.
patent: 3343363 (1967-09-01), Stow et al.
patent: 3630205 (1971-12-01), Listner
patent: 3776997 (1973-12-01), Jung et al.
patent: 3957936 (1976-05-01), Lauchenauer
patent: 4009511 (1977-03-01), Gauntt
patent: 4052988 (1976-01-01), Doddi et al.
patent: 4246904 (1981-01-01), Kaplan
patent: 4621638 (1985-11-01), Silvestrini
patent: 4629654 (1985-04-01), Sasaki et al.
patent: 4911165 (1988-12-01), Lennard et al.
patent: 4921668 (1990-05-01), Anderson et al.
patent: 5082610 (1992-01-01), Fish, Jr. et al.
patent: 5102419 (1992-04-01), Gertzman et al.
Vol. 10, No. 355 (C-388) 2411, Nov. 29, 1986, "Production of Improved Polypropylene Monofilament".

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