Tack spun materials

Details Tack spun materials Tack spun materials

1980-06-26

1982-05-04

Kimlin, Edward C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156344, 156498, 264164, 427185, 428 85, 428 92, B32B 3118, B32B 502

Patent

active

043280587

ABSTRACT:
This invention is concerned with the tack spinning of materials and has particular reference to the formation of tack spun materials by applying a theromplastic polymer to a backing or carrier sheet to form a pattern or layer thereon and then heating the layer and contacting the layer with a second surface whereby separation of the carrier from the second surface results in separation of the thermoplastic polymer within its plane to draw fibres therefrom on progressive separation. The preferred embodiment of the invention involves two backing sheets prepared between a pair of nip rollers to form a sandwich structure with a layer of thermoplastic tack spinnable material and separating the same on the downstream side of the nip to provide the fibres disposed substantially transverse to the plane of the carrier sheet. The invention also describes novel apparatus for performing this operation.

REFERENCES:
patent: 3708565 (1973-01-01), Seiffert
patent: 3814791 (1974-06-01), Jones
patent: 4235946 (1980-11-01), Lauchenauer

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