Insulating composition

Details Insulating composition Insulating composition

1979-07-30

1981-02-03

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

28112, 428227, 428248, 428299, 428300, B32B 506

Patent

active

042489270

ABSTRACT:
There are disclosed apparatus and methods for incorporating feathers and downs into synthetic fiber. In one embodiment, raw polyester staple is processed into batting by a garnetting machine or the like, after which a quantity of natural feathers and downs is securely implanted in the polyester fiber using an impregnation device. The polyester sheets containing the impregnated plumage may then be folded and cut to the required size and thickness for further use.

REFERENCES:
patent: 1714240 (1929-05-01), Rayner
patent: 2314482 (1943-03-01), De Fries
patent: 2339431 (1944-01-01), Slayter
patent: 2958919 (1960-11-01), Palmer
patent: 3046173 (1962-07-01), Copeland
patent: 3461026 (1969-08-01), Schick

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