Process for preparing carpet underlay

Details Process for preparing carpet underlay Process for preparing carpet underlay

1989-07-26

1991-01-15

Lusignan, Michael

Coating processes

Application to opposite sides of sheet, web, or strip

28107, 28169, 156148, 427358, 4273899, 428 95, 428235, 428300, 428301, B05D 500

Patent

active

049852795

ABSTRACT:
A process of carding several different types of fibers into webs, combining the webs by layering alternate types and needle punching the combined webs into a tightly felted sheet impregnating the sheet on both sides with a synthetic rubber latex and curing the latex in place by baking the impregnated sheet.

REFERENCES:
patent: 4229406 (1980-10-01), Pollock
patent: 4504537 (1985-03-01), Mussallen
patent: 4504538 (1985-03-01), Mussallem
patent: 4668559 (1987-05-01), Mussallem
patent: 4725476 (1988-02-01), Mussallem

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