Closed cell foamed material having interior canals filled with s

Details Closed cell foamed material having interior canals filled with s Closed cell foamed material having interior canals filled with s

1982-07-23

1984-08-07

Van Balen, William J.

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular backing structure or composition

428137, 4283144, 4283179, B32B 310

Patent

active

044644280

ABSTRACT:
A web of a cross-linked plastic material foamed in a closed-cell structure or configuration, having substantially parallel upper and lower surfaces, wherein canals penetrate the foamed material and extend and open to at least one of said upper and lower surfaces, and wherein substances can be introduced into the canals to impart beneficial properties to the web of foamed material.

REFERENCES:
patent: 3352739 (1967-11-01), Blue
patent: 3357516 (1967-12-01), Cadotte et al.
patent: 3649430 (1972-03-01), Lewis et al.
patent: 3867240 (1975-02-01), Doerfling
patent: 4009315 (1977-02-01), Healy et al.
patent: 4020207 (1977-04-01), Alfter et al.
patent: 4125664 (1978-11-01), Giesemann
patent: 4131703 (1978-12-01), Voet
patent: 4183984 (1980-01-01), Browers et al.
patent: 4199639 (1980-04-01), Ronc

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