Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1986-11-03
1990-01-16
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156 79, 427373, 427421, 428286, 4283166, 4283171, 4283175, 4283179, 428905, B32B 326
Patent
active
048942774
ABSTRACT:
A method that includes the step of spraying a foamed hot melt adhesive from the discharge nozzle of a spray gun under such conditions that elongated strands of foamed hot melt adhesive are formed in an open weave film of spider web configuration which is deposited on a first substrate. A second substrate can then be bonded to the first to form a product. Alternatively, and before the second substrate is bonded to the first, a powder, e.g., a hygroscopic powder, can be deposited within the open areas of the film's spider web configuration to form a laminate product with a special enhanced characteristic, e.g., moisture absorbency.
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patent: 4059714 (1977-11-01), Scholl et al.
patent: 4247581 (1981-01-01), Cobbs et al.
patent: 4256526 (1981-03-01), McDaniel
patent: 4429001 (1984-01-01), Kolpin et al.
patent: 4549915 (1985-10-01), Ritschel et al.
Nordson Corporation
Van Balen William J.
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