Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1988-07-21
1991-03-19
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428364, 428447, 428401, B32B 904, D02G 300
Patent
active
050010085
ABSTRACT:
Disclosed is a reinforcing fibrous material having an improved adhesion, which consists essentially of a surface-treated, molecularly oriented, silane-crosslinked ultra-high-molecular-weight polyethylene fiber, wherein when the measurement is conducted under restraint conditions by using a differential scanning calorimeter, the crosslinked polyethylene fiber has at least two crystal melting peaks (Tp) at temperatures higher by at least 10.degree. C. than the inherent crystal melting temperature (Tm) of the ultra-high-molecular-weight polyethylene determined as the main peak at the time of the second temperature elevation, the heat of fusion based on these crystal melting peaks (Tp) is at least 50% of the whole heat of fusion, and the sum of heat of fusion of high-temperature side peaks (Tp1) at temperatures in the range of from (TM+35).degree. C. to (Tm+120).degree. C. is at least 5% of the whole heat of fusion, and wherein the crosslinked polyethylene fiber has a surface containing at least 8 carbon atoms, especially at least oxygen atoms, per 100 oxygen atoms, as determined by the electron spectroscopy for chemical analysis.
REFERENCES:
patent: 3646155 (1972-02-01), Scott
patent: 4048129 (1977-09-01), Voigt
patent: 4182398 (1980-01-01), Salyer et al.
patent: 4410586 (1983-10-01), Ladizesky et al.
patent: 4413110 (1983-11-01), Kavesch et al.
patent: 4870136 (1989-09-01), Yagi et al.
Inagaki Hajime
Tokita Suguru
Kendell Lorraine T.
Mitsui Petrochemical Industries Ltd.
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