Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1987-06-10
1989-08-15
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
28107, 55DIG26, 428234, 428246, 428280, 428282, 428284, 428287, 428300, 428301, B32B 1500
Patent
active
RE0330230
ABSTRACT:
There is provided an integral textile composite fabric of non-woven, needled textile fibers which comprises at least one organic textile fiber layer of laid and needled textile organic fibers, at least one glass fiber layer of laid and needled glass fibers, and a plurality of needled stitches composed essentially of the organic fibers from the organic fiber layer needled in and disposed substantially through the glass fiber layer. The layers are bound together at their inner surfaces, are substantially nondetachable from each other and form an integral textile composite fabric having substantially uniform and high physical properties. There are at least 700 stitches per square inch passing through the glass fiber layer, and the organic fiber layer is essentially free, at least on the outer surface thereof, of glass fibers displaced from the glass fiber layer.
REFERENCES:
patent: 2794237 (1957-06-01), Dildelian et al.
patent: 2794238 (1957-06-01), Dildelian et al.
patent: 2794759 (1957-06-01), Dildelian
patent: 2910763 (1959-11-01), Lauterbach
patent: 3975565 (1976-08-01), Kendall
patent: 4277531 (1981-07-01), Picone
Bell James J.
Lydall, Inc.
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