Co-extruded fusible net

Details Co-extruded fusible net Co-extruded fusible net

1982-07-06

1983-10-18

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

15624411, 156344, 264167, 264171, 428105, 428110, 428255, B32B 700

Patent

active

044105878

ABSTRACT:
An improved method of manufacturing fusible net products and the products resulting therefrom are disclosed. Low-melt-strength polymers are extruded with a stable high-melt-strength polymer to form a composite net structure having a carrier net layer of the stable high-melt-strength polymer carrying a net layer of similar structure and of the low-melt-strength polymer. After the molten layers are quenched and solidified the net layer on the carrier is easily delaminated. The net layer can be removed anytime after the material ceases to be tacky and may be conveniently stored as a composite if desired. The carrier polymer net is available for sale directly as is or it may be oriented or ground and recycled to again form the carrier. The low-melt-strength polymer may be sandwiched between outer layers of high-melt-strength polymer or the low-melt-strength polymer may be carried on both sides of the high-melt-strength polymer.

REFERENCES:
patent: 2919467 (1960-01-01), Mercer
patent: 3252181 (1966-05-01), Hureau
patent: 4038008 (1977-07-01), Larsen
patent: 4144368 (1979-03-01), Kim et al.
patent: 4348444 (1982-09-01), Craig

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