Shaped article of collagen and process for preparing same

Details Shaped article of collagen and process for preparing same Shaped article of collagen and process for preparing same

1981-12-21

1984-06-19

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1306, C25D 1312

Patent

active

044552068

ABSTRACT:
A shaped article of collagen having 5 to 20 .mu.m of thickness, the peak maximum temperature of endothermic denaturation thereof being in the range of 62.degree. to 71.degree. C., the wet tensile strength thereof being in the range of 3 to 6 kg/mm.sup.2 and the wet tear strength thereof being in the range of 25 to 150 g.multidot.cm/cm is prepared by a process comprising cross-linking a collagenous material so that the difference of the peak maximum temperatures of endothermic denaturation of the material between before and after the cross-linking falls in the range of 1.0.degree. to 10.degree. C. and the peak maximum temperature after the cross-linking falls in the range of 63.degree. to 74.degree. C., fibrating the cross-linked collagenous material to prepare an aqueous dispersion with the viscosity of 100 to 2000 cP and the spinnability of 30 to 80 mm at the concentration of 1% by weight of collagen fiber and subjecting the dispersion to electrodeposition.

REFERENCES:
patent: 3556969 (1971-01-01), Mizuguchi et al.
patent: 4273705 (1981-06-01), Kato
patent: 4294677 (1981-10-01), Sakagami et al.
patent: 4320175 (1982-03-01), Hisazumi et al.

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