Surface treatment for blanket of thermoplastic fibers

Details Surface treatment for blanket of thermoplastic fibers Surface treatment for blanket of thermoplastic fibers

2006-10-31

2006-10-31

Mackey, James P. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Preform assembly means and means for bonding of plural...

Means forming indefinite length product

C425S509000, C425S371000

Reexamination Certificate

active

07128561

ABSTRACT:
An apparatus and method are provided for forming a densified surface layer on a thermoplastic blanket. The apparatus includes first and second continuous belts, a treatment zone defined between those belts, first and second heating and densifying units and a cooler downstream from the heating and densifying units. The method includes the steps of continuously forming a densified surface layer on a face of a thermoplastic blanket and making the thermoplastic blanket with the densified surface layer to a desired thickness within strict dimensional tolerances. A densified thermoplastic blanket product is also disclosed.

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