Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1975-08-05
1977-03-22
McCamish, Marion E.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428251, 428268, 428273, 428290, 428336, 428422, B32B 704, B32B 3106
Patent
active
040138127
ABSTRACT:
A composite sheet for use in membrane type roof constructions or the like comprises a foraminous web formed of a plurality of fibers coated or impregnated with a heat sealable plastic material and being heat sealed to a compatible thin film of plastic sheet material. The thin film sheet material is preferably transparent, so that the composite sheet is transparent through the openings in the foraminous web.
REFERENCES:
patent: 3542633 (1970-11-01), Goldsmith
patent: 3899622 (1975-08-01), Geiger
McCamish Marion E.
Razzano Pasquale A.
Smith Arthur V.
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