Method for making water-swellable composite sheet

Details Method for making water-swellable composite sheet Method for making water-swellable composite sheet

1984-04-25

1986-01-21

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Plural, intermittent pressure applying

264122, 264127, 264175, B29D 2700, B29D 714, B29B 104

Patent

active

045656630

ABSTRACT:
A method of preparing a tear-resistant composite sheet material having hydrophilic, absorptive particles enmeshed in a network of interlaced microfibrous polytetrafluoroethylene forming a fibril matrix, the hydrophilic absorptive particles having absorptive particles with absorptive capacity greater than 1.0 gram of water per gram of dry particle, wherein the method comprises:

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