Bleaching and dyeing; fluid treatment and chemical modification – Chemical modification of textiles or fibers or products thereof
Patent
1974-03-05
1976-10-19
Lechert, Jr., Stephen J.
Bleaching and dyeing; fluid treatment and chemical modification
Chemical modification of textiles or fibers or products thereof
81491, 81492, D06B 1300
Patent
active
039868281
ABSTRACT:
Polyester fabric which may be in the form of a warp-knitted lock-stitched or tricot-stitched tubular construction is compacted by treatment with NO.sub.2 either in the gaseous phase or in solution. The product, after neutralization, washing and crimping is suitable for vascular prostheses. In one form, the compacted product is crimped and bifurcated. Shrinkage in both the longitudinal and transverse directions is at least 30%. The porosity of the fabric is reduced by the compacting treatment.
REFERENCES:
patent: 3485574 (1969-12-01), Miller et al.
Hoffman, Jr. Harmon L.
Tolsma Jacob
Lechert Jr. Stephen J.
Meadox Medicals Inc.
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