Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1978-01-30
1980-01-15
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
66190, 428245, 428273, 428408, B32B 700
Patent
active
041839935
ABSTRACT:
A unidirectional reinforcing fabric and a resinous laminate made therewith, which fabric includes a weft knit yarn fabric formed of a multiplicity of weft knit stitches and a multiplicity of parallel longitudinally extending warp inserts held in said weft knit fabric. A bi-directional fabric is also disclosed which includes in addition to the above a multiplicity of parallel transversely extending weft inserts. Each insert includes a multiplicity of continuous monofilaments extending longitudinally in parallel relation with respect to one another without crimp or twist and grouped closely together so that the outline cross-sectional configuration of the group is approximately in the shape of an elongated rectangle. Each monofilament of each insert is formed from a material taken from the group consisting of glass, carbon and aramid and has a cross-sectional diameter of between 0.00032" and 0.00095". Each insert has the thickness of the rectangular cross-sectional configuration thereof between 0.003" and 0.38", the width of the rectangular cross-sectional configuration thereof between 0.009" and 0.75" and a ratio of width-to-thickness of between 2 and 30. The total width of the warp inserts per yard width of fabric is between 55% and 98%. The total width of the weft inserts per yard length of fabric is between 55% and 98%.
REFERENCES:
patent: 2893442 (1959-07-01), Genin
patent: 3235323 (1966-02-01), Peters
patent: 3256130 (1966-06-01), Nisbet
patent: 3507130 (1970-04-01), Marks et al.
patent: 3621677 (1971-11-01), Marks et al.
patent: 3819461 (1974-06-01), Saffadi
patent: 3943733 (1976-03-01), Wily
patent: 3949570 (1976-04-01), Niederer
Benstead Bryan C.
Seith Robert T.
Bell James J.
Gulf States Paper Corporation
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